change from glew to epoxy

because that works under wayland out of the box and gtk3 uses it already

Change-Id: Iefaac31e325534a81a5389f752804af917c1baef
Reviewed-on: https://gerrit.libreoffice.org/31213
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>
diff --git a/Makefile.fetch b/Makefile.fetch
index 3e21be3..cf31e5b 100644
--- a/Makefile.fetch
+++ b/Makefile.fetch
@@ -129,7 +129,7 @@ $(WORKDIR)/download: $(BUILDDIR)/config_host.mk $(SRCDIR)/download.lst $(SRCDIR)
		$(call fetch_Optional,FONTCONFIG,FONTCONFIG_TARBALL) \
		$(call fetch_Optional,FREEHAND,FREEHAND_TARBALL) \
		$(call fetch_Optional,FREETYPE,FREETYPE_TARBALL) \
		$(call fetch_Optional,GLEW,GLEW_TARBALL) \
		$(call fetch_Optional,EPOXY,EPOXY_TARBALL) \
		$(call fetch_Optional,GLM,GLM_TARBALL) \
		$(call fetch_Optional_pack,GOOGLE_DOCS_EXTENSION_PACK) \
		$(call fetch_Optional,GRAPHITE,GRAPHITE_TARBALL) \
diff --git a/RepositoryExternal.mk b/RepositoryExternal.mk
index fd6f4c8..dcc47a6 100644
--- a/RepositoryExternal.mk
+++ b/RepositoryExternal.mk
@@ -183,51 +183,43 @@ endef

endif # SYSTEM_CPPUNIT

ifneq ($(SYSTEM_GLEW),)
ifneq ($(SYSTEM_EPOXY),)

define gb_LinkTarget__use_glew
define gb_LinkTarget__use_epoxy
$(call gb_LinkTarget_set_include,$(1),\
	$$(INCLUDE) \
    $(GLEW_CFLAGS) \
    $(EPOXY_CFLAGS) \
)
$(call gb_LinkTarget_add_libs,$(1),$(GLEW_LIBS))
$(call gb_LinkTarget_add_libs,$(1),$(EPOXY_LIBS))

endef

gb_ExternalProject__use_glew :=
gb_ExternalProject__use_epoxy :=

else # !SYSTEM_GLEW
else # !SYSTEM_EPOXY

$(eval $(call gb_Helper_register_packages_for_install,ooo,\
	glew \
define gb_LinkTarget__use_epoxy
$(call gb_LinkTarget_set_include,$(1),\
       -I$(call gb_UnpackedTarball_get_dir,epoxy/include) \
       $$(INCLUDE) \
)

$(call gb_LinkTarget_use_libraries,$(1),\
    epoxy \
)

endef

$(eval $(call gb_Helper_register_libraries_for_install,PLAINLIBS_OOO,ooo,\
	epoxy \
))

define gb_LinkTarget__use_glew
$(call gb_LinkTarget_use_package,$(1),glew)
$(call gb_LinkTarget_set_include,$(1),\
	-I$(call gb_UnpackedTarball_get_dir,glew/include) \
	-DGLEW_NO_GLU \
	$$(INCLUDE) \
)

ifeq ($(COM),MSC)
$(call gb_LinkTarget_add_libs,$(1),\
	$(call gb_UnpackedTarball_get_dir,glew)/lib/$(if $(MSVC_USE_DEBUG_RUNTIME),Debug/$(wnt_arch_subdir_mandatory)/glew32d.lib,Release/$(wnt_arch_subdir_mandatory)/glew32.lib) \
)
else
$(call gb_LinkTarget_add_libs,$(1),\
	-L$(call gb_UnpackedTarball_get_dir,glew)/lib/ -lGLEW \
)
endif
define gb_ExternalProject__use_epoxy
$(call gb_ExternalProject_use_external_project,$(1),epoxy)

endef

define gb_ExternalProject__use_glew
$(call gb_ExternalProject_use_external_project,$(1),glew)

endef

endif # SYSTEM_GLEW
endif # SYSTEM_EPOXY

define gb_LinkTarget__use_iconv
$(call gb_LinkTarget_add_libs,$(1),-liconv)
@@ -3435,7 +3427,7 @@ $(call gb_LinkTarget_add_libs,$(1),\
)
else
$(call gb_LinkTarget_add_libs,$(1),\
	$(call gb_UnpackedTarball_get_dir,libgltf)/src/.libs/libgltf-0.0$(gb_StaticLibrary_PLAINEXT) \
	$(call gb_UnpackedTarball_get_dir,libgltf)/src/.libs/libgltf-0.1$(gb_StaticLibrary_PLAINEXT) \
)
endif

diff --git a/avmedia/Library_avmedia.mk b/avmedia/Library_avmedia.mk
index 4e8f3b1..e662fc3 100644
--- a/avmedia/Library_avmedia.mk
+++ b/avmedia/Library_avmedia.mk
@@ -29,7 +29,7 @@ $(eval $(call gb_Library_use_externals,avmedia,\

ifeq ($(ENABLE_HEADLESS),)
$(eval $(call gb_Library_use_externals,avmedia,\
    glew \
    epoxy \
))
endif

diff --git a/avmedia/Library_avmediaogl.mk b/avmedia/Library_avmediaogl.mk
index b7498bf..191fb75 100644
--- a/avmedia/Library_avmediaogl.mk
+++ b/avmedia/Library_avmediaogl.mk
@@ -16,7 +16,7 @@ $(eval $(call gb_Library_use_sdk_api,avmediaogl))
$(eval $(call gb_Library_use_externals,avmediaogl, \
    boost_headers \
    libgltf \
    glew \
    epoxy \
    glm_headers \
))

@@ -51,10 +51,6 @@ else ifeq ($(OS),MACOSX)
$(eval $(call gb_Library_use_system_darwin_frameworks,avmediaogl,\
	OpenGL \
))
else ifeq ($(OS), $(filter LINUX %BSD SOLARIS, $(OS)))
$(eval $(call gb_Library_add_libs,avmediaogl,\
    -lGL \
))
endif

# vim: set noet sw=4 ts=4:
diff --git a/bin/check-elf-dynamic-objects b/bin/check-elf-dynamic-objects
index d22bc49..298f81e 100755
--- a/bin/check-elf-dynamic-objects
+++ b/bin/check-elf-dynamic-objects
@@ -105,7 +105,7 @@ local file="$1"
        */libdesktop_detectorlo.so|*/ui-previewer|*/oosplash|*/gengal.bin)
            whitelist="${whitelist} ${x11whitelist}"
        ;;
        */libvclplug_genlo.so|*/libGLEW.so.*|*/libchartcorelo.so|*/libavmediaogl.so|*/libOGLTranslo.so|*/liboglcanvaslo.so|*/libchartopengllo.so)
        */libvclplug_genlo.so|*/libchartcorelo.so|*/libavmediaogl.so|*/libOGLTranslo.so|*/liboglcanvaslo.so|*/libchartopengllo.so)
            whitelist="${whitelist} ${x11whitelist} ${openglwhitelist}"
        ;;
        */libvcllo.so|*/libsofficeapp.so)
diff --git a/bin/lo-all-static-libs b/bin/lo-all-static-libs
index 813241e..9faa042 100755
--- a/bin/lo-all-static-libs
+++ b/bin/lo-all-static-libs
@@ -63,7 +63,7 @@ echo $INSTDIR/$LIBO_LIB_FOLDER/lib*.a \
     $WORKDIR/UnpackedTarball/coinmp/CoinMP/src/.libs/*.a \
     $WORKDIR/UnpackedTarball/coinmp/CoinUtils/src/.libs/*.a \
     $WORKDIR/UnpackedTarball/coinmp/Osi/src/Osi/.libs/*.a \
     $WORKDIR/UnpackedTarball/glew/lib/*.a \
     $WORKDIR/UnpackedTarball/epoxy/lib/*.a \
     $WORKDIR/UnpackedTarball/icu/source/lib/*.a \
     $WORKDIR/UnpackedTarball/langtag/liblangtag/.libs/*.a \
     $WORKDIR/UnpackedTarball/lcms2/src/.libs/*.a \
diff --git a/canvas/Library_oglcanvas.mk b/canvas/Library_oglcanvas.mk
index 0118eb1..9d1042d 100644
--- a/canvas/Library_oglcanvas.mk
+++ b/canvas/Library_oglcanvas.mk
@@ -42,7 +42,7 @@ $(eval $(call gb_Library_add_exception_objects,oglcanvas,\

$(eval $(call gb_Library_use_externals,oglcanvas,\
	boost_headers \
	glew \
	epoxy \
))

ifeq ($(strip $(OS)),MACOSX)
@@ -58,11 +58,6 @@ $(eval $(call gb_Library_use_system_win32_libs,oglcanvas,\
    opengl32 \
))

else
$(eval $(call gb_Library_add_libs,oglcanvas,\
    -lGL \
    -lX11 \
))
endif

# vim: set noet sw=4 ts=4:
diff --git a/canvas/source/opengl/ogl_buffercontext.hxx b/canvas/source/opengl/ogl_buffercontext.hxx
index 202e063..7f2066a 100644
--- a/canvas/source/opengl/ogl_buffercontext.hxx
+++ b/canvas/source/opengl/ogl_buffercontext.hxx
@@ -10,7 +10,7 @@
#ifndef INCLUDED_CANVAS_SOURCE_OPENGL_OGL_BUFFERCONTEXT_HXX
#define INCLUDED_CANVAS_SOURCE_OPENGL_OGL_BUFFERCONTEXT_HXX

#include <GL/glew.h>
#include <epoxy/gl.h>

#include <sal/config.h>
#include <memory>
diff --git a/canvas/source/opengl/ogl_canvascustomsprite.cxx b/canvas/source/opengl/ogl_canvascustomsprite.cxx
index 8d38177..6b23d45 100644
--- a/canvas/source/opengl/ogl_canvascustomsprite.cxx
+++ b/canvas/source/opengl/ogl_canvascustomsprite.cxx
@@ -9,7 +9,7 @@

#include <sal/config.h>

#include <GL/glew.h>
#include <epoxy/gl.h>

#include <basegfx/matrix/b2dhommatrix.hxx>
#include <basegfx/point/b2dpoint.hxx>
diff --git a/canvas/source/opengl/ogl_canvashelper.cxx b/canvas/source/opengl/ogl_canvashelper.cxx
index 84a96ce..175a02b 100644
--- a/canvas/source/opengl/ogl_canvashelper.cxx
+++ b/canvas/source/opengl/ogl_canvashelper.cxx
@@ -11,7 +11,7 @@

#include <memory>
#include <functional>
#include <GL/glew.h>
#include <epoxy/gl.h>

#include <basegfx/polygon/b2dpolygontriangulator.hxx>
#include <basegfx/polygon/b2dpolypolygon.hxx>
diff --git a/canvas/source/opengl/ogl_canvastools.cxx b/canvas/source/opengl/ogl_canvastools.cxx
index 657a220..3d9448b 100644
--- a/canvas/source/opengl/ogl_canvastools.cxx
+++ b/canvas/source/opengl/ogl_canvastools.cxx
@@ -9,7 +9,7 @@

#include <sal/config.h>

#include <GL/glew.h>
#include <epoxy/gl.h>

#include <basegfx/matrix/b2dhommatrix.hxx>
#include <basegfx/polygon/b2dpolygontriangulator.hxx>
diff --git a/canvas/source/opengl/ogl_texturecache.cxx b/canvas/source/opengl/ogl_texturecache.cxx
index 08cdd2f..43fb7d8 100644
--- a/canvas/source/opengl/ogl_texturecache.cxx
+++ b/canvas/source/opengl/ogl_texturecache.cxx
@@ -9,7 +9,7 @@

#include <sal/config.h>

#include <GL/glew.h>
#include <epoxy/gl.h>

#include <com/sun/star/geometry/IntegerSize2D.hpp>

diff --git a/canvas/source/opengl/ogl_tools.hxx b/canvas/source/opengl/ogl_tools.hxx
index 8133212..469a5be 100644
--- a/canvas/source/opengl/ogl_tools.hxx
+++ b/canvas/source/opengl/ogl_tools.hxx
@@ -11,8 +11,7 @@
#define INCLUDED_CANVAS_SOURCE_OPENGL_OGL_TOOLS_HXX

#include <sal/config.h>
#include <GL/glew.h>

#include <epoxy/gl.h>

namespace oglcanvas
{
diff --git a/chart2/Library_chartcore.mk b/chart2/Library_chartcore.mk
index b15f634..cc06fbd 100644
--- a/chart2/Library_chartcore.mk
+++ b/chart2/Library_chartcore.mk
@@ -32,7 +32,7 @@ $(eval $(call gb_Library_use_externals,chartcore,\

ifeq ($(ENABLE_HEADLESS),)
$(eval $(call gb_Library_use_externals,chartcore,\
    glew \
    epoxy \
))
endif

@@ -264,13 +264,6 @@ else ifeq ($(OS), $(filter LINUX %BSD SOLARIS, $(OS)))
$(eval $(call gb_Library_add_libs,chartcore,\
	$(DLOPEN_LIBS) \
))
ifeq ($(ENABLE_HEADLESS),)
$(eval $(call gb_Library_add_libs,chartcore,\
    -lGL \
    -lX11 \
))
endif #!ENABLE_HEADLESS

endif

# vim: set noet sw=4 ts=4:
diff --git a/chart2/Library_chartopengl.mk b/chart2/Library_chartopengl.mk
index 95ea58d..53056aa 100644
--- a/chart2/Library_chartopengl.mk
+++ b/chart2/Library_chartopengl.mk
@@ -22,7 +22,7 @@ $(eval $(call gb_Library_set_precompiled_header,chartopengl,$(SRCDIR)/chart2/inc
$(eval $(call gb_Library_use_externals,chartopengl,\
	boost_headers \
	glm_headers \
	glew \
	epoxy \
))

$(eval $(call gb_Library_use_sdk_api,chartopengl))
@@ -68,8 +68,6 @@ $(eval $(call gb_Library_use_system_darwin_frameworks,chartopengl,\
else ifeq ($(OS), $(filter LINUX %BSD SOLARIS, $(OS)))
$(eval $(call gb_Library_add_libs,chartopengl,\
	$(DLOPEN_LIBS) \
	-lGL \
	-lX11 \
))
endif
 
diff --git a/chart2/inc/pch/precompiled_chartcore.hxx b/chart2/inc/pch/precompiled_chartcore.hxx
index 8d02451..908d7ac 100644
--- a/chart2/inc/pch/precompiled_chartcore.hxx
+++ b/chart2/inc/pch/precompiled_chartcore.hxx
@@ -73,7 +73,6 @@
#include <vcl/virdev.hxx>
#include <vcl/wall.hxx>
#include <ChartModel.hxx>
#include <GL/glew.h>
#include <basegfx/basegfxdllapi.h>
#include <basegfx/matrix/b3dhommatrix.hxx>
#include <basegfx/numeric/ftools.hxx>
@@ -169,6 +168,7 @@
#include <cppuhelper/weak.hxx>
#include <editeng/editengdllapi.h>
#include <editeng/unoprnms.hxx>
#include <epoxy/gl.h>
#include <i18nlangtag/i18nlangtagdllapi.h>
#include <i18nlangtag/lang.h>
#include <i18nlangtag/languagetag.hxx>
diff --git a/chart2/source/view/charttypes/GL3DBarChart.cxx b/chart2/source/view/charttypes/GL3DBarChart.cxx
index a4193da..401b664 100644
--- a/chart2/source/view/charttypes/GL3DBarChart.cxx
+++ b/chart2/source/view/charttypes/GL3DBarChart.cxx
@@ -9,7 +9,7 @@

#include <GL3DBarChart.hxx>

#include <GL/glew.h>
#include <epoxy/gl.h>

#include <glm/glm.hpp>
#include <glm/gtx/transform.hpp>
diff --git a/chart2/source/view/main/GL3DRenderer.cxx b/chart2/source/view/main/GL3DRenderer.cxx
index fb4fb13..e1e4c01 100644
--- a/chart2/source/view/main/GL3DRenderer.cxx
+++ b/chart2/source/view/main/GL3DRenderer.cxx
@@ -7,7 +7,7 @@
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */

#include <GL/glew.h>
#include <epoxy/gl.h>

#include "GL3DRenderer.hxx"

@@ -244,8 +244,8 @@ void OpenGL3DRenderer::ShaderResources::LoadShaders()
        m_3DBatchNormalID = glGetAttribLocation(m_3DBatchProID, "vertexNormalModelspace");
        m_3DBatchColorID = glGetAttribLocation(m_3DBatchProID, "barColor");
#if !defined MACOSX
        //check whether the texture array is support
        mbTexBatchSupport = GLEW_EXT_texture_array;
        //check whether the texture array is supported
        mbTexBatchSupport = epoxy_has_gl_extension("GL_EXT_texture_array");
#endif
        CHECK_GL_ERROR();
        if (mbTexBatchSupport)
@@ -401,7 +401,7 @@ void OpenGL3DRenderer::init()
    m_fViewAngle = 30.0f;
    m_3DProjection = glm::perspective(m_fViewAngle, (float)m_iWidth / (float)m_iHeight, 0.01f, 6000.0f);

    maResources.m_b330Support = GLEW_VERSION_3_3;
    maResources.m_b330Support = epoxy_gl_version() >= 33;
    CHECK_GL_ERROR();
    maResources.LoadShaders();
    maPickingResources.LoadShaders();
diff --git a/chart2/source/view/main/OpenGLRender.cxx b/chart2/source/view/main/OpenGLRender.cxx
index 3182e66..91a3763 100644
--- a/chart2/source/view/main/OpenGLRender.cxx
+++ b/chart2/source/view/main/OpenGLRender.cxx
@@ -7,7 +7,7 @@
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */

#include <GL/glew.h>
#include <epoxy/gl.h>
#include <vector>
#include "OpenGLRender.hxx"
#include <vcl/graph.hxx>
diff --git a/config_host.mk.in b/config_host.mk.in
index 1abb21e..7b3197e 100644
--- a/config_host.mk.in
+++ b/config_host.mk.in
@@ -199,8 +199,8 @@ export GIO_LIBS=$(gb_SPACE)@GIO_LIBS@
export GIT_REFERENCE_SRC=@GIT_REFERENCE_SRC@
export GIT_LINK_SRC=@GIT_LINK_SRC@
export GIT_NEEDED_SUBMODULES=@GIT_NEEDED_SUBMODULES@
export GLEW_CFLAGS=$(gb_SPACE)@GLEW_CFLAGS@
export GLEW_LIBS=$(gb_SPACE)@GLEW_LIBS@
export EPOXY_CFLAGS=$(gb_SPACE)@EPOXY_CFLAGS@
export EPOXY_LIBS=$(gb_SPACE)@EPOXY_LIBS@
export GLM_CFLAGS=$(gb_SPACE)@GLM_CFLAGS@
export GNOMEVFS_CFLAGS=$(gb_SPACE)@GNOMEVFS_CFLAGS@
export GNOMEVFS_LIBS=$(gb_SPACE)@GNOMEVFS_LIBS@
@@ -513,7 +513,7 @@ export SYSTEM_FIREBIRD=@SYSTEM_FIREBIRD@
export SYSTEM_GENBRK=@SYSTEM_GENBRK@
export SYSTEM_GENCCODE=@SYSTEM_GENCCODE@
export SYSTEM_GENCMN=@SYSTEM_GENCMN@
export SYSTEM_GLEW=@SYSTEM_GLEW@
export SYSTEM_EPOXY=@SYSTEM_EPOXY@
export SYSTEM_GLM=@SYSTEM_GLM@
export SYSTEM_GRAPHITE=@SYSTEM_GRAPHITE@
export SYSTEM_HARFBUZZ=@SYSTEM_HARFBUZZ@
diff --git a/config_host/config_opengl.h.in b/config_host/config_opengl.h.in
deleted file mode 100644
index 67b9e47..0000000
--- a/config_host/config_opengl.h.in
+++ /dev/null
@@ -1,10 +0,0 @@
/*
Settings for OpenGL
*/

#ifndef CONFIG_OPENGL_H
#define CONFIG_OPENGL_H

#define HAVE_GLEW_1_12 0

#endif
diff --git a/configure.ac b/configure.ac
index 4a0dac7..18815ad 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1627,6 +1627,11 @@ AC_ARG_WITH(system-cairo,
        [Use cairo libraries already on system.  Happens automatically for
         (implicit) --enable-gtk and for --enable-gtk3.]))

AC_ARG_WITH(system-epoxy,
    AS_HELP_STRING([--with-system-epoxy],
        [Use epoxy libraries already on system.  Happens automatically for
         --enable-gtk3.]))

AC_ARG_WITH(myspell-dicts,
    AS_HELP_STRING([--with-myspell-dicts],
        [Adds myspell dictionaries to the LibreOffice installation set]),
@@ -8921,14 +8926,6 @@ AC_SUBST([GLM_CFLAGS])
AC_SUBST([SYSTEM_GLM])

dnl ===================================================================
dnl Check for system glew
dnl ===================================================================
libo_CHECK_SYSTEM_MODULE([glew], [GLEW], [glew >= 1.10.0])
AS_IF([test "$with_system_glew" = "yes"],
    [PKG_CHECK_EXISTS([glew >= 1.12.0], [AC_DEFINE([HAVE_GLEW_1_12])])],
    [AC_DEFINE([HAVE_GLEW_1_12])])

dnl ===================================================================
dnl Check for system odbc
dnl ===================================================================
AC_MSG_CHECKING([which odbc headers to use])
@@ -10465,7 +10462,7 @@ if test "x$enable_gltf" != "xno" -a $_os != iOS -a $_os != Android -a "$ENABLE_H
    AC_DEFINE(HAVE_FEATURE_GLTF,1)
    if test "$with_system_libgltf" = "yes"; then
        SYSTEM_LIBGLTF=TRUE
        PKG_CHECK_MODULES( LIBGLTF, [libgltf-0.0 >= 0.0.1] )
        PKG_CHECK_MODULES( LIBGLTF, [libgltf-0.1 >= 0.1.0] )
        FilterLibs "${LIBGLTF_LIBS}"
        LIBGLTF_LIBS="${filteredlibs}"
    else
@@ -11696,6 +11693,11 @@ AC_SUBST(CAIRO_CFLAGS)
AC_SUBST(CAIRO_LIBS)

dnl ===================================================================
dnl Check for system epoxy
dnl ===================================================================
libo_CHECK_SYSTEM_MODULE([epoxy], [EPOXY], [epoxy >= 1.3.1], ["-I${WORKDIR}/UnpackedTarball/epoxy/include"])

dnl ===================================================================
dnl Test whether to use avahi
dnl ===================================================================
if test "$_os" = "WINNT"; then
@@ -12854,7 +12856,6 @@ AC_CONFIG_HEADERS([config_host/config_locales.h])
AC_CONFIG_HEADERS([config_host/config_mpl.h])
AC_CONFIG_HEADERS([config_host/config_kde4.h])
AC_CONFIG_HEADERS([config_host/config_oox.h])
AC_CONFIG_HEADERS([config_host/config_opengl.h])
AC_CONFIG_HEADERS([config_host/config_options.h])
AC_CONFIG_HEADERS([config_host/config_options_calc.h])
AC_CONFIG_HEADERS([config_host/config_test.h])
diff --git a/cui/Library_cui.mk b/cui/Library_cui.mk
index 6a63a1d..64f7844 100644
--- a/cui/Library_cui.mk
+++ b/cui/Library_cui.mk
@@ -72,7 +72,7 @@ $(eval $(call gb_Library_use_externals,cui,\
))
ifeq ($(ENABLE_HEADLESS),)
$(eval $(call gb_Library_use_externals,cui,\
     glew \
     epoxy \
 ))
endif

diff --git a/distro-configs/LibreOfficeFlatpak.conf b/distro-configs/LibreOfficeFlatpak.conf
index d5d6686..121d198 100644
--- a/distro-configs/LibreOfficeFlatpak.conf
+++ b/distro-configs/LibreOfficeFlatpak.conf
@@ -11,7 +11,6 @@
--without-system-coinmp
--without-system-cppunit
--without-system-firebird
--without-system-glew
--without-system-glm
--without-system-libabw
--without-system-libcdr
diff --git a/download.lst b/download.lst
index 3e3313b..9d7af4f 100644
--- a/download.lst
+++ b/download.lst
@@ -29,6 +29,8 @@ export CURL_TARBALL := curl-7.51.0.tar.gz
export DBGHELP_DLL := 13fbc2e8b37ddf28181dd6d8081c2b8e-dbghelp.dll
export EBOOK_MD5SUM := 6b48eda57914e6343efebc9381027b78
export EBOOK_TARBALL := libe-book-0.1.2.tar.bz2
export EPOXY_MD5SUM := 96f6620a9b005a503e7b44b0b528287d
export EPOXY_TARBALL := libepoxy-1.3.1.tar.bz2
export EPM_TARBALL := 3ade8cfe7e59ca8e65052644fed9fca4-epm-3.7.tar.gz
export ETONYEK_MD5SUM := 77ff46936dcc83670557274e7dd2aa33
export ETONYEK_VERSION_MICRO := 6
@@ -54,7 +56,6 @@ export FONT_EMOJIONE_COLOR_TARBALL := EmojiOneColor-SVGinOT-1.3.tar.gz
export FREEHAND_MD5SUM := 8cf70c5dc4d24d2dc4a107f509d2d6d7
export FREEHAND_TARBALL := libfreehand-0.1.1.tar.bz2
export FREETYPE_TARBALL := dbf2caca1d3afd410a29217a9809d397-freetype-2.4.8.tar.bz2
export GLEW_TARBALL := 3941e9cab2f4f9d8faee3e8d57ae7664-glew-1.12.0.zip
export GLM_TARBALL := bae83fa5dc7f081768daace6e199adc3-glm-0.9.4.6-libreoffice.zip
export GRAPHITE_TARBALL := 3069842a88b8f40c6b83ad2850cda293-graphite2-minimal-1.3.9.tgz
export HARFBUZZ_MD5SUM := 5986e1bfcd983d1f6caa53ef64c4abc5
@@ -88,8 +89,8 @@ export LIBATOMIC_OPS_TARBALL := libatomic_ops-7_2d.zip
export LIBEOT_MD5SUM := aa24f5dd2a2992f4a116aa72af817548
export LIBEOT_TARBALL := libeot-0.01.tar.bz2
export LIBEXTTEXTCAT_TARBALL := 10d61fbaa6a06348823651b1bd7940fe-libexttextcat-3.4.4.tar.bz2
export LIBGLTF_MD5SUM := d63a9f47ab048f5009d90693d6aa6424
export LIBGLTF_TARBALL := libgltf-0.0.2.tar.bz2
export LIBGLTF_MD5SUM := 63ae962d0c436909979826fce0fca2fd
export LIBGLTF_TARBALL := libgltf-0.1.0.tar.gz
export LIBLANGTAG_MD5SUM := 284f120247323a35122ab32b4b359c45
export LIBLANGTAG_TARBALL := liblangtag-0.6.2.tar.bz2
export LIBTOMMATH_MD5SUM := da283d2e3e72137d0c600ac36b991c9d
diff --git a/external/Module_external.mk b/external/Module_external.mk
index 1dbf97b..c14e668 100644
--- a/external/Module_external.mk
+++ b/external/Module_external.mk
@@ -38,13 +38,13 @@ $(eval $(call gb_Module_add_moduledirs,external,\
	$(call gb_Helper_optional,CURL,curl) \
	$(call gb_Helper_optional,EBOOK,libebook) \
	$(call gb_Helper_optional,EPM,epm) \
	$(call gb_Helper_optional,EPOXY,epoxy) \
	$(call gb_Helper_optional,ETONYEK,libetonyek) \
	$(call gb_Helper_optional,EXPAT,expat) \
	$(call gb_Helper_optional,FIREBIRD,firebird) \
	$(call gb_Helper_optional,FONTCONFIG,fontconfig) \
	$(call gb_Helper_optional,FREEHAND,libfreehand) \
	$(call gb_Helper_optional,FREETYPE,freetype) \
	$(call gb_Helper_optional,GLEW,glew) \
	$(call gb_Helper_optional,GLM,glm) \
	$(call gb_Helper_optional,GRAPHITE,graphite) \
	$(call gb_Helper_optional,HARFBUZZ,harfbuzz) \
diff --git a/external/epoxy/Library_epoxy.mk b/external/epoxy/Library_epoxy.mk
new file mode 100644
index 0000000..28f9dab
--- /dev/null
+++ b/external/epoxy/Library_epoxy.mk
@@ -0,0 +1,63 @@
# -*- Mode: makefile-gmake; tab-width: 4; indent-tabs-mode: t -*-
#
# This file is part of the LibreOffice project.
#
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
#

$(eval $(call gb_Library_Library,epoxy))

$(eval $(call gb_Library_use_unpacked,epoxy,epoxy))

$(eval $(call gb_Library_set_warnings_not_errors,epoxy))

$(eval $(call gb_Library_set_include,epoxy,\
	-I$(WORKDIR)/UnpackedTarball/epoxy/include \
	-I$(WORKDIR)/UnpackedTarball/epoxy/src \
	$$(INCLUDE) \
))

# epoxy is riddled with warnings... let's spare use
# the pointless spamming
$(eval $(call gb_Library_add_cxxflags,epoxy,\
	-w \
))
$(eval $(call gb_Library_add_cflags,epoxy,\
	-w \
))

ifeq ($(OS),LINUX)
$(eval $(call gb_Library_add_libs,epoxy,\
	-ldl \
))
endif

$(eval $(call gb_Library_add_generated_cobjects,epoxy,\
	UnpackedTarball/epoxy/src/dispatch_common \
	UnpackedTarball/epoxy/src/gl_generated_dispatch \
))

ifeq ($(OS),WNT)
$(eval $(call gb_Library_add_generated_cobjects,epoxy,\
	UnpackedTarball/epoxy/src/dispatch_wgl \
	UnpackedTarball/epoxy/src/wgl_generated_dispatch \
))
else ifeq ($(OS),MACOSX)
# nothing
else ifeq ($(OS),ANDROID)
$(eval $(call gb_Library_add_generated_cobjects,epoxy,\
	UnpackedTarball/epoxy/src/dispatch_egl \
	UnpackedTarball/epoxy/src/egl_generated_dispatch \
))
else
$(eval $(call gb_Library_add_generated_cobjects,epoxy,\
	UnpackedTarball/epoxy/src/dispatch_glx \
	UnpackedTarball/epoxy/src/glx_generated_dispatch \
	UnpackedTarball/epoxy/src/dispatch_egl \
	UnpackedTarball/epoxy/src/egl_generated_dispatch \
))
endif

# vim: set noet sw=4 ts=4:
diff --git a/external/glew/Makefile b/external/epoxy/Makefile
similarity index 100%
rename from external/glew/Makefile
rename to external/epoxy/Makefile
diff --git a/external/glew/Module_glew.mk b/external/epoxy/Module_epoxy.mk
similarity index 69%
rename from external/glew/Module_glew.mk
rename to external/epoxy/Module_epoxy.mk
index 1d1b9a7..ea65176 100644
--- a/external/glew/Module_glew.mk
+++ b/external/epoxy/Module_epoxy.mk
@@ -7,12 +7,11 @@
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
#

$(eval $(call gb_Module_Module,glew))
$(eval $(call gb_Module_Module,epoxy))

$(eval $(call gb_Module_add_targets,glew,\
	ExternalProject_glew \
	UnpackedTarball_glew \
	ExternalPackage_glew \
$(eval $(call gb_Module_add_targets,epoxy,\
	Library_epoxy \
	UnpackedTarball_epoxy \
))

# vim: set noet sw=4 ts=4:
diff --git a/external/epoxy/README b/external/epoxy/README
new file mode 100644
index 0000000..8bd467a
--- /dev/null
+++ b/external/epoxy/README
@@ -0,0 +1,5 @@
Epoxy is an OpenGL Extension Wrangler

Epoxy is a library for handling OpenGL function pointer management for you

https://github.com/anholt/libepoxy
diff --git a/external/epoxy/UnpackedTarball_epoxy.mk b/external/epoxy/UnpackedTarball_epoxy.mk
new file mode 100644
index 0000000..76c0fdf
--- /dev/null
+++ b/external/epoxy/UnpackedTarball_epoxy.mk
@@ -0,0 +1,20 @@
# -*- Mode: makefile-gmake; tab-width: 4; indent-tabs-mode: t -*-
#
# This file is part of the LibreOffice project.
#
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
#

$(eval $(call gb_UnpackedTarball_UnpackedTarball,epoxy))

$(eval $(call gb_UnpackedTarball_set_tarball,epoxy,$(EPOXY_TARBALL)))

$(eval $(call gb_UnpackedTarball_set_patchlevel,epoxy,0))

$(eval $(call gb_UnpackedTarball_add_patches,epoxy, \
    external/epoxy/epoxy.windows.api.patch \
))

# vim: set noet sw=4 ts=4:
diff --git a/external/epoxy/epoxy.windows.api.patch b/external/epoxy/epoxy.windows.api.patch
new file mode 100644
index 0000000..12d2afb
--- /dev/null
+++ b/external/epoxy/epoxy.windows.api.patch
@@ -0,0 +1,90 @@
--- include/epoxy/gl.h
+++ include/epoxy/gl.h
@@ -59,7 +59,8 @@
 
 #else
 #ifndef APIENTRY
-#define APIENTRY __stdcall
+#define WINAPI __stdcall
+#define APIENTRY WINAPI
 #endif
 
 #ifndef GLAPIENTRY
--- src/egl_generated_dispatch.c
+++ src/egl_generated_dispatch.c
@@ -128,7 +128,11 @@
 };
 
 #if USING_DISPATCH_TABLE
+#if defined (_MSC_VER)
+static __inline struct dispatch_table *
+#else
 static inline struct dispatch_table *
+#endif
 get_dispatch_table(void);
 
 #endif
@@ -1642,7 +1646,11 @@
 uint32_t egl_tls_index;
 uint32_t egl_tls_size = sizeof(struct dispatch_table);
 
+#if defined (_MSC_VER)
+static __inline struct dispatch_table *
+#else
 static inline struct dispatch_table *
+#endif
 get_dispatch_table(void)
 {
 	return TlsGetValue(egl_tls_index);
--- src/gl_generated_dispatch.c
+++ src/gl_generated_dispatch.c
@@ -3122,7 +3122,11 @@
 };
 
 #if USING_DISPATCH_TABLE
+#if defined (_MSC_VER)
+static __inline struct dispatch_table *
+#else
 static inline struct dispatch_table *
+#endif
 get_dispatch_table(void);
 
 #endif
@@ -51507,7 +51511,11 @@
 uint32_t gl_tls_index;
 uint32_t gl_tls_size = sizeof(struct dispatch_table);
 
+#if defined (_MSC_VER)
+static __inline struct dispatch_table *
+#else
 static inline struct dispatch_table *
+#endif
 get_dispatch_table(void)
 {
 	return TlsGetValue(gl_tls_index);
--- src/wgl_generated_dispatch.c
+++ src/wgl_generated_dispatch.c
@@ -157,7 +157,11 @@
 };
 
 #if USING_DISPATCH_TABLE
+#if defined (_MSC_VER)
+static __inline struct dispatch_table *
+#else
 static inline struct dispatch_table *
+#endif
 get_dispatch_table(void);
 
 #endif
@@ -1701,7 +1705,11 @@
 uint32_t wgl_tls_index;
 uint32_t wgl_tls_size = sizeof(struct dispatch_table);
 
+#if defined (_MSC_VER)
+static __inline struct dispatch_table *
+#else
 static inline struct dispatch_table *
+#endif
 get_dispatch_table(void)
 {
 	return TlsGetValue(wgl_tls_index);
diff --git a/external/glew/ExternalPackage_glew.mk b/external/glew/ExternalPackage_glew.mk
deleted file mode 100644
index e6adc8b..0000000
--- a/external/glew/ExternalPackage_glew.mk
+++ /dev/null
@@ -1,33 +0,0 @@
# -*- Mode: makefile-gmake; tab-width: 4; indent-tabs-mode: t -*-
#
# This file is part of the LibreOffice project.
#
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
#

$(eval $(call gb_ExternalPackage_ExternalPackage,glew,glew))

$(eval $(call gb_ExternalPackage_use_external_project,glew,glew))

ifeq ($(OS)-$(COM),WNT-MSC)
ifeq ($(CPUNAME),INTEL)
glew_arch_subdir=Win32
else ifeq ($(CPUNAME),X86_64)
glew_arch_subdir=x64
endif
endif

ifeq ($(OS),MACOSX)
$(eval $(call gb_ExternalPackage_add_file,glew,$(LIBO_LIB_FOLDER)/libGLEW.1.12.0.dylib,lib/libGLEW.1.12.0.dylib))
else ifeq ($(OS)-$(COM),WNT-GCC)
else ifeq ($(COM),MSC)
$(eval $(call gb_ExternalPackage_add_files,glew,$(LIBO_LIB_FOLDER), \
	bin/$(if $(MSVC_USE_DEBUG_RUNTIME),Debug/$(glew_arch_subdir)/glew32d.dll,Release/$(glew_arch_subdir)/glew32.dll) \
))
else ifeq ($(DISABLE_DYNLOADING),)
$(eval $(call gb_ExternalPackage_add_file,glew,$(LIBO_LIB_FOLDER)/libGLEW.so.1.12,lib/libGLEW.so.1.12.0))
endif

# vim: set noet sw=4 ts=4:
diff --git a/external/glew/ExternalProject_glew.mk b/external/glew/ExternalProject_glew.mk
deleted file mode 100644
index 0d80cd03..0000000
--- a/external/glew/ExternalProject_glew.mk
+++ /dev/null
@@ -1,36 +0,0 @@
# -*- Mode: makefile-gmake; tab-width: 4; indent-tabs-mode: t -*-
#
# This file is part of the LibreOffice project.
#
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
#

$(eval $(call gb_ExternalProject_ExternalProject,glew))

$(eval $(call gb_ExternalProject_register_targets,glew,\
	build \
))

ifeq ($(COM),MSC)
$(call gb_ExternalProject_get_state_target,glew,build) :
	$(call gb_ExternalProject_run,build,\
		$(if $(filter 140,$(VCVER)),$(DEVENV) /Upgrade glew.sln,echo up-to-date) && \
		msbuild.exe glew_shared.vcxproj /p:Platform=$(if $(filter INTEL,$(CPUNAME)),Win32,x64) /p:Configuration=$(if $(MSVC_USE_DEBUG_RUNTIME),Debug,Release) $(if $(filter 140,$(VCVER)),/p:PlatformToolset=v140,/p:PlatformToolset=v120) \
	,build/vc12) \
	$(call gb_ExternalProject_run,build,\
		msbuild.exe glewinfo.vcxproj /p:Platform=$(if $(filter INTEL,$(CPUNAME)),Win32,x64) /p:Configuration=Release $(if $(filter 140,$(VCVER)),/p:PlatformToolset=v140,/p:PlatformToolset=v120) \
	,build/vc12)

else

$(call gb_ExternalProject_get_state_target,glew,build) :
	$(call gb_ExternalProject_run,glew,\
		$(if $(ENABLE_DEBUG),STRIP=) LD="$(CC)" \
			$(MAKE) STRIP= glew.lib $(if $(filter DESKTOP,$(BUILD_TYPE)),$(if $(ENABLE_DEBUG),debug)) \
	)

endif

# vim: set noet sw=4 ts=4:
diff --git a/external/glew/README b/external/glew/README
deleted file mode 100644
index 34b2d24..0000000
--- a/external/glew/README
+++ /dev/null
@@ -1,6 +0,0 @@
GLEW is the OpenGL Extension Wrangler

GLEW provides efficient run-time mechanisms for determining which OpenGL
extensions are supported on the target platform.

http://glew.sourceforge.net/
diff --git a/external/glew/UnpackedTarball_glew.mk b/external/glew/UnpackedTarball_glew.mk
deleted file mode 100644
index c47b7a0..0000000
--- a/external/glew/UnpackedTarball_glew.mk
+++ /dev/null
@@ -1,48 +0,0 @@
# -*- Mode: makefile-gmake; tab-width: 4; indent-tabs-mode: t -*-
#
# This file is part of the LibreOffice project.
#
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
#

$(eval $(call gb_UnpackedTarball_UnpackedTarball,glew))

$(eval $(call gb_UnpackedTarball_set_tarball,glew,$(GLEW_TARBALL)))

$(eval $(call gb_UnpackedTarball_set_patchlevel,glew,0))

$(eval $(call gb_UnpackedTarball_fix_end_of_line,glew,\
	Makefile \
	include/GL/glew.h \
))

ifeq ($(OS)$(COM),WNTMSC)
$(eval $(call gb_UnpackedTarball_set_patchflags,glew,--binary))
$(eval $(call gb_UnpackedTarball_add_patches,glew,\
	external/glew/glew-msvc-disable-sse2.patch.1 \
))
else
$(eval $(call gb_UnpackedTarball_add_patches,glew,\
	external/glew/glew_use_CC_variable.patch.1 \
))
endif

ifeq ($(OS),MACOSX)
$(eval $(call gb_UnpackedTarball_add_patches,glew,\
	external/glew/glew-macosx-install-name.patch.1 \
))
endif

ifeq ($(DISABLE_DYNLOADING),TRUE)
$(eval $(call gb_UnpackedTarball_add_patches,glew,\
	external/glew/glew-static-only.patch.1 \
))
endif

$(eval $(call gb_UnpackedTarball_add_patches,glew,\
	external/glew/glew-tmpdir.patch.1 \
))

# vim: set noet sw=4 ts=4:
diff --git a/external/glew/glew-macosx-install-name.patch.1 b/external/glew/glew-macosx-install-name.patch.1
deleted file mode 100644
index 75e8e7f..0000000
--- a/external/glew/glew-macosx-install-name.patch.1
+++ /dev/null
@@ -1,13 +0,0 @@
-*- Mode:Diff -*-
diff -ur glew.org/build/glew.rc glew/build/glew.rc
--- glew/config/Makefile.darwin
+++ glew/config/Makefile.darwin
@@ -20,7 +20,7 @@
 LIB.DEVLNK    = lib$(NAME).dylib
 LIB.SHARED    = lib$(NAME).$(SO_VERSION).dylib
 LIB.STATIC    = lib$(NAME).a
-LDFLAGS.SO    = -dynamiclib -install_name $(GLEW_DEST)/lib/$(LIB.SHARED) -current_version $(SO_VERSION) -compatibility_version $(SO_MAJOR)
+LDFLAGS.SO    = -dynamiclib -install_name @__________________________________________________OOO/$(LIB.SHARED) -current_version $(SO_VERSION) -compatibility_version $(SO_MAJOR)
 LIB.SONAME.MX = lib$(NAME)mx.$(SO_MAJOR).dylib
 LIB.DEVLNK.MX = lib$(NAME)mx.dylib
 LIB.SHARED.MX = lib$(NAME)mx.$(SO_VERSION).dylib
diff --git a/external/glew/glew-msvc-disable-sse2.patch.1 b/external/glew/glew-msvc-disable-sse2.patch.1
deleted file mode 100644
index 6b07044..0000000
--- a/external/glew/glew-msvc-disable-sse2.patch.1
+++ /dev/null
@@ -1,10 +0,0 @@
--- glew/build//vc10/common.props.orig	2014-10-02 15:06:57.027060664 +0200
+++ glew/build//vc10/common.props	2014-10-02 15:06:59.026060509 +0200
@@ -10,6 +10,7 @@
   <ItemDefinitionGroup>
     <ClCompile>
       <AdditionalIncludeDirectories>$(INCLUDE_DIR)</AdditionalIncludeDirectories>
+      <EnableEnhancedInstructionSet>StreamingSIMDExtensions</EnableEnhancedInstructionSet>
     </ClCompile>
   </ItemDefinitionGroup>
   <ItemGroup>
diff --git a/external/glew/glew-static-only.patch.1 b/external/glew/glew-static-only.patch.1
deleted file mode 100644
index 14ccff2..0000000
--- a/external/glew/glew-static-only.patch.1
+++ /dev/null
@@ -1,12 +0,0 @@
-*- Mode:Diff -*-
--- glew/Makefile
+++ glew/Makefile
@@ -93,7 +93,7 @@
 LIB.SOBJS.MX       := $(addprefix tmp/$(SYSTEM)/mx/shared/,$(LIB.SRCS.NAMES))
 LIB.SOBJS.MX       := $(LIB.SOBJS.MX:.c=.o)
 
-glew.lib: lib lib/$(LIB.SHARED) lib/$(LIB.STATIC) glew.pc
+glew.lib: lib lib/$(LIB.STATIC)
 
 lib:
 	mkdir lib
diff --git a/external/glew/glew-tmpdir.patch.1 b/external/glew/glew-tmpdir.patch.1
deleted file mode 100644
index 9a2847b..0000000
--- a/external/glew/glew-tmpdir.patch.1
+++ /dev/null
@@ -1,13 +0,0 @@
diff -ur glew.org/Makefile glew/Makefile
--- glew.org/Makefile	2016-05-02 06:25:53.521291677 +0200
+++ glew/Makefile	2016-05-02 06:31:10.325035494 +0200
@@ -55,7 +55,8 @@
 DIST_SRC_TGZ ?= $(shell pwd)/$(DIST_NAME).tgz
 DIST_WIN32   ?= $(shell pwd)/$(DIST_NAME)-win32.zip
 
-DIST_DIR := $(shell mktemp -d /tmp/glew.XXXXXX)/$(DIST_NAME)
+TMPDIR ?= /tmp
+DIST_DIR := $(shell mktemp -d $(TMPDIR)/glew.XXXXXX)/$(DIST_NAME)
 
 # To disable stripping of binaries either:
 #   - use STRIP= on gmake command-line
diff --git a/external/glew/glew_use_CC_variable.patch.1 b/external/glew/glew_use_CC_variable.patch.1
deleted file mode 100644
index 56e9903..0000000
--- a/external/glew/glew_use_CC_variable.patch.1
+++ /dev/null
@@ -1,24 +0,0 @@
Use CC variable from environment, don't hardcode "cc".

--- glew/config/Makefile.linux.orig	2014-01-29 15:39:43.364972925 +0100
+++ glew/config/Makefile.linux	2014-01-29 15:44:45.621000941 +0100
@@ -1,6 +1,6 @@
 NAME = $(GLEW_NAME)
-CC = cc
-LD = cc
+CC ?= cc
+LD ?= $(CC)
 M_ARCH ?= $(shell uname -m)
 ARCH64 = false
 ifeq (x86_64,${M_ARCH})
--- glew/config/Makefile.darwin.orig	2014-01-29 15:44:39.541000377 +0100
+++ glew/config/Makefile.darwin	2014-01-29 15:44:47.548001120 +0100
@@ -1,6 +1,6 @@
 NAME = $(GLEW_NAME)
-CC = cc
-LD = cc
+CC ?= cc
+LD ?= $(CC)
 CFLAGS.EXTRA = -dynamic -fno-common
 #CFLAGS.EXTRA += -no-cpp-precomp
 LDFLAGS.EXTRA =
diff --git a/external/libgltf/ExternalProject_libgltf.mk b/external/libgltf/ExternalProject_libgltf.mk
index 57c01d0..90a1d96 100644
--- a/external/libgltf/ExternalProject_libgltf.mk
+++ b/external/libgltf/ExternalProject_libgltf.mk
@@ -17,7 +17,7 @@ $(eval $(call gb_ExternalProject_register_targets,libgltf,\

$(eval $(call gb_ExternalProject_use_externals,libgltf,\
	boost_headers \
	glew \
	epoxy \
	glm_headers \
))

@@ -30,8 +30,8 @@ ifeq ($(SYSTEM_BOOST),)
libgltf_AdditionalIncludes += "$(call gb_UnpackedTarball_get_dir,boost)"
endif

ifeq ($(SYSTEM_GLEW),)
libgltf_AdditionalIncludes += "$(call gb_UnpackedTarball_get_dir,glew)/include"
ifeq ($(SYSTEM_EPOXY),)
libgltf_AdditionalIncludes += "$(call gb_UnpackedTarball_get_dir,epoxy)/include"
endif

ifeq ($(SYSTEM_GLM),)
@@ -45,7 +45,7 @@ $(call gb_ExternalProject_get_state_target,libgltf,build) :
			$(if $(filter 120,$(VCVER)),/p:PlatformToolset=v120 /p:VisualStudioVersion=12.0 /ToolsVersion:12.0) \
			$(if $(filter 140,$(VCVER)),/p:PlatformToolset=v140 /p:VisualStudioVersion=14.0 /ToolsVersion:14.0) \
			'/p:AdditionalIncludeDirectories=$(subst $(WHITESPACE),;,$(subst /,\,$(strip $(libgltf_AdditionalIncludes))))' \
			/p:AdditionalLibraryDirectories=$(if $(SYSTEM_GLEW),,"$(subst /,\,$(call gb_UnpackedTarball_get_dir,glew))\lib\$(if $(MSVC_USE_DEBUG_RUNTIME),Debug,Release)\Win32") \
			/p:AdditionalLibraryDirectories=$(if $(SYSTEM_EPOXY),,"$(subst /,\,$(call gb_UnpackedTarball_get_dir,epoxy))\lib\$(if $(MSVC_USE_DEBUG_RUNTIME),Debug,Release)\Win32") \
	,build/win32)

else # !ifeq($(COM),MSC)
@@ -67,7 +67,7 @@ $(call gb_ExternalProject_get_state_target,libgltf,build) :
			$(if $(ENABLE_DEBUG),--enable-debug,--disable-debug) \
			--disable-werror \
			BOOST_CFLAGS="$(BOOST_CPPFLAGS)" \
			GLEW_CFLAGS="$(if $(SYSTEM_GLEW),$(GLEW_CFLAGS),-I$(call gb_UnpackedTarball_get_dir,glew)/include) -DGLEW_NO_GLU" \
			EPOXY_CFLAGS="$(if $(SYSTEM_EPOXY),$(EPOXY_CFLAGS),-I$(call gb_UnpackedTarball_get_dir,epoxy)/include)" \
			GLM_CFLAGS="$(if $(SYSTEM_GLM),$(GLM_CFLAGS),-I$(call gb_UnpackedTarball_get_dir,glm))" \
			$(if $(libgltf_CPPFLAGS),CPPFLAGS='$(libgltf_CPPFLAGS)') \
		&& $(MAKE) \
diff --git a/external/libgltf/libgltf-msvc-x64.patch.1 b/external/libgltf/libgltf-msvc-x64.patch.1
index 86417a7..32a831b 100644
--- a/external/libgltf/libgltf-msvc-x64.patch.1
+++ b/external/libgltf/libgltf-msvc-x64.patch.1
@@ -20,7 +20,7 @@ diff -ur libgltf.org/build/win32/libgltf.vcxproj libgltf/build/win32/libgltf.vcx
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="..\..\inc\libgltf.h" />
@@ -56,6 +64,12 @@
@@ -53,6 +61,12 @@
     <CharacterSet>MultiByte</CharacterSet>
     <PlatformToolset>v110</PlatformToolset>
   </PropertyGroup>
@@ -33,7 +33,7 @@ diff -ur libgltf.org/build/win32/libgltf.vcxproj libgltf/build/win32/libgltf.vcx
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
     <ConfigurationType>StaticLibrary</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
@@ -63,15 +77,28 @@
@@ -60,15 +74,28 @@
     <CharacterSet>MultiByte</CharacterSet>
     <PlatformToolset>v110</PlatformToolset>
   </PropertyGroup>
@@ -62,8 +62,8 @@ diff -ur libgltf.org/build/win32/libgltf.vcxproj libgltf/build/win32/libgltf.vcx
   <PropertyGroup Label="UserMacros" />
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
     <ClCompile>
@@ -86,6 +113,19 @@
       <AdditionalDependencies>opengl32.lib;glew32.lib;$(AdditionalDependencies)</AdditionalDependencies>
@@ -83,10 +110,42 @@
       <AdditionalDependencies>opengl32.lib;epoxy32.lib;$(AdditionalDependencies)</AdditionalDependencies>
     </Link>
   </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
@@ -76,20 +76,13 @@ diff -ur libgltf.org/build/win32/libgltf.vcxproj libgltf/build/win32/libgltf.vcx
+    <Link>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <AdditionalLibraryDirectories>$(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+      <AdditionalDependencies>opengl32.lib;glew32.lib;$(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>opengl32.lib;epoxy32.lib;$(AdditionalDependencies)</AdditionalDependencies>
+    </Link>
+  </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
     <ClCompile>
       <WarningLevel>Level4</WarningLevel>
@@ -105,6 +145,25 @@
       <SubSystem>Windows</SubSystem>
     </Link>
   </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <ClCompile>
+      <WarningLevel>Level4</WarningLevel>
+      <Optimization>MaxSpeed</Optimization>
       <Optimization>MaxSpeed</Optimization>
+      <EnableEnhancedInstructionSet>StreamingSIMDExtensions</EnableEnhancedInstructionSet>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
@@ -101,10 +94,14 @@ diff -ur libgltf.org/build/win32/libgltf.vcxproj libgltf/build/win32/libgltf.vcx
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <AdditionalLibraryDirectories>$(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+      <AdditionalDependencies>opengl32.lib;glew32.lib;$(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>opengl32.lib;epoxy32.lib;$(AdditionalDependencies)</AdditionalDependencies>
+      <SubSystem>Windows</SubSystem>
+    </Link>
+  </ItemDefinitionGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
   </ImportGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <ClCompile>
+      <WarningLevel>Level4</WarningLevel>
+      <Optimization>MaxSpeed</Optimization>
       <EnableEnhancedInstructionSet>StreamingSIMDExtensions</EnableEnhancedInstructionSet>
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
diff --git a/include/vcl/opengl/OpenGLContext.hxx b/include/vcl/opengl/OpenGLContext.hxx
index e77a6e9..37d354e 100644
--- a/include/vcl/opengl/OpenGLContext.hxx
+++ b/include/vcl/opengl/OpenGLContext.hxx
@@ -12,7 +12,7 @@

#include <string.h>

#include <GL/glew.h>
#include <epoxy/gl.h>

#include <vcl/dllapi.h>
#include <vcl/window.hxx>
@@ -158,8 +158,8 @@ private:
    virtual void destroyCurrentContext();

protected:
    bool InitGLEW();
    static void InitGLEWDebugging();
    bool InitGL();
    static void InitGLDebugging();
    static void InitChildWindow(SystemChildWindow *pChildWindow);
    static void BuffersSwapped();
    virtual GLWindow& getModifiableOpenGLWindow() = 0;
diff --git a/include/vcl/opengl/OpenGLHelper.hxx b/include/vcl/opengl/OpenGLHelper.hxx
index 458021f..23b9b79 100644
--- a/include/vcl/opengl/OpenGLHelper.hxx
+++ b/include/vcl/opengl/OpenGLHelper.hxx
@@ -10,7 +10,7 @@
#ifndef INCLUDED_VCL_OPENGL_OPENGLHELPER_HXX
#define INCLUDED_VCL_OPENGL_OPENGLHELPER_HXX

#include <GL/glew.h>
#include <epoxy/gl.h>
#include <sal/log.hxx>
#include <vcl/dllapi.h>
#include <vcl/bitmapex.hxx>
diff --git a/include/vcl/opengl/OpenGLWrapper.hxx b/include/vcl/opengl/OpenGLWrapper.hxx
index 5032234..9c61a11 100644
--- a/include/vcl/opengl/OpenGLWrapper.hxx
+++ b/include/vcl/opengl/OpenGLWrapper.hxx
@@ -7,7 +7,7 @@
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */

// Fully wrapped methods that have no exotic GL / GLEW header deps.
// Fully wrapped methods that have no exotic GL header deps.

#ifndef INCLUDED_VCL_OPENGL_OPENGLWRAPPER_HXX
#define INCLUDED_VCL_OPENGL_OPENGLWRAPPER_HXX
diff --git a/slideshow/Library_OGLTrans.mk b/slideshow/Library_OGLTrans.mk
index b908a0b..fb04596 100644
--- a/slideshow/Library_OGLTrans.mk
+++ b/slideshow/Library_OGLTrans.mk
@@ -34,7 +34,7 @@ $(eval $(call gb_Library_use_libraries,OGLTrans,\

$(eval $(call gb_Library_use_externals,OGLTrans,\
	boost_headers \
	glew \
	epoxy \
	glm_headers \
))

@@ -56,13 +56,6 @@ $(eval $(call gb_Library_use_system_win32_libs,OGLTrans,\
    opengl32 \
))

else

$(eval $(call gb_Library_add_libs,OGLTrans,\
	-lGL \
	-lX11 \
))

endif

$(eval $(call gb_Library_add_exception_objects,OGLTrans,\
diff --git a/slideshow/Library_slideshow.mk b/slideshow/Library_slideshow.mk
index 3a9aac6..0583f5e 100644
--- a/slideshow/Library_slideshow.mk
+++ b/slideshow/Library_slideshow.mk
@@ -31,7 +31,7 @@ $(eval $(call gb_Library_use_externals,slideshow,\
))
ifeq ($(ENABLE_HEADLESS),)
$(eval $(call gb_Library_use_externals,slideshow,\
     glew \
     epoxy \
 ))
endif

diff --git a/slideshow/source/engine/opengl/TransitionImpl.cxx b/slideshow/source/engine/opengl/TransitionImpl.cxx
index a807fff..1c69121 100644
--- a/slideshow/source/engine/opengl/TransitionImpl.cxx
+++ b/slideshow/source/engine/opengl/TransitionImpl.cxx
@@ -26,7 +26,6 @@
 *
 ************************************************************************/

#include <GL/glew.h>
#include <glm/gtc/matrix_transform.hpp>
#include <glm/gtc/type_ptr.hpp>
#include <vcl/opengl/OpenGLHelper.hxx>
diff --git a/slideshow/source/engine/opengl/TransitionImpl.hxx b/slideshow/source/engine/opengl/TransitionImpl.hxx
index 9ee73dd..6f2e164 100644
--- a/slideshow/source/engine/opengl/TransitionImpl.hxx
+++ b/slideshow/source/engine/opengl/TransitionImpl.hxx
@@ -31,8 +31,6 @@
#include <config_lgpl.h>
#include <glm/gtc/type_ptr.hpp>

#include <GL/glew.h>

#include <limits>
#include <memory>
#include <vector>
diff --git a/slideshow/source/engine/opengl/TransitionerImpl.cxx b/slideshow/source/engine/opengl/TransitionerImpl.cxx
index ef1d385..01cd3e5 100644
--- a/slideshow/source/engine/opengl/TransitionerImpl.cxx
+++ b/slideshow/source/engine/opengl/TransitionerImpl.cxx
@@ -810,7 +810,7 @@ void buildMipmaps(
    GLint internalFormat, GLsizei width, GLsizei height, GLenum format,
    GLenum type, const void * data)
{
    if (GLEW_ARB_framebuffer_object) {
    if (epoxy_has_gl_extension("GL_ARB_framebuffer_object")) {
        glTexImage2D(
            GL_TEXTURE_2D, 0, internalFormat, width, height, 0, format, type,
            data);
diff --git a/svx/Library_svxcore.mk b/svx/Library_svxcore.mk
index 557c427..48ecf22 100644
--- a/svx/Library_svxcore.mk
+++ b/svx/Library_svxcore.mk
@@ -88,7 +88,7 @@ $(eval $(call gb_Library_use_externals,svxcore,\
))
ifeq ($(ENABLE_HEADLESS),)
$(eval $(call gb_Library_use_externals,svxcore,\
     glew \
     epoxy \
 ))
endif

diff --git a/toolkit/Library_tk.mk b/toolkit/Library_tk.mk
index 27bd721..b9a42d3 100644
--- a/toolkit/Library_tk.mk
+++ b/toolkit/Library_tk.mk
@@ -27,7 +27,7 @@ $(eval $(call gb_Library_use_externals,tk,\

ifeq ($(ENABLE_HEADLESS),)
$(eval $(call gb_Library_use_externals,tk,\
    glew \
    epoxy \
))
endif
$(eval $(call gb_Library_set_include,tk,\
diff --git a/vcl/CppunitTest_vcl_bitmap_test.mk b/vcl/CppunitTest_vcl_bitmap_test.mk
index 879c7ac5..70ce156 100644
--- a/vcl/CppunitTest_vcl_bitmap_test.mk
+++ b/vcl/CppunitTest_vcl_bitmap_test.mk
@@ -19,7 +19,7 @@ $(eval $(call gb_CppunitTest_use_externals,vcl_bitmap_test,\
))
ifeq ($(ENABLE_HEADLESS),)
$(eval $(call gb_CppunitTest_use_externals,vcl_bitmap_test,\
     glew \
     epoxy \
 ))
endif

diff --git a/vcl/CppunitTest_vcl_wmf_test.mk b/vcl/CppunitTest_vcl_wmf_test.mk
index 369c792..7cae363 100644
--- a/vcl/CppunitTest_vcl_wmf_test.mk
+++ b/vcl/CppunitTest_vcl_wmf_test.mk
@@ -87,7 +87,7 @@ $(eval $(call gb_CppunitTest_use_externals,vcl_wmf_test,\
))
ifeq ($(ENABLE_HEADLESS),)
$(eval $(call gb_CppunitTest_use_externals,vcl_wmf_test,\
     glew \
     epoxy \
 ))
endif

@@ -136,7 +136,6 @@ $(eval $(call gb_CppunitTest_add_libs,vcl_wmf_test,\
    -lm \
    -ldl \
    -lpthread \
    -lGL \
    -lX11 \
))
endif
@@ -190,7 +189,6 @@ ifeq ($(OS), $(filter LINUX %BSD SOLARIS, $(OS)))
$(eval $(call gb_CppunitTest_add_libs,vcl_wmf_test,\
    -lm $(DLOPEN_LIBS) \
    -lpthread \
    -lGL \
    -lX11 \
    -lXext \
))
diff --git a/vcl/Executable_icontest.mk b/vcl/Executable_icontest.mk
index 102697b..cce8feb 100644
--- a/vcl/Executable_icontest.mk
+++ b/vcl/Executable_icontest.mk
@@ -15,7 +15,7 @@ $(eval $(call gb_Executable_use_externals,icontest,\
))
ifeq ($(ENABLE_HEADLESS),)
$(eval $(call gb_Executable_use_externals,icontest,\
    glew \
    epoxy \
))
endif

diff --git a/vcl/Executable_vcldemo.mk b/vcl/Executable_vcldemo.mk
index bff091e..a09d3b49 100644
--- a/vcl/Executable_vcldemo.mk
+++ b/vcl/Executable_vcldemo.mk
@@ -21,7 +21,7 @@ $(eval $(call gb_Executable_use_externals,vcldemo,\
))
ifeq ($(ENABLE_HEADLESS),)
$(eval $(call gb_Executable_use_externals,vcldemo,\
    glew \
    epoxy \
))
endif

diff --git a/vcl/Executable_visualbackendtest.mk b/vcl/Executable_visualbackendtest.mk
index abf8cbe..8704453 100644
--- a/vcl/Executable_visualbackendtest.mk
+++ b/vcl/Executable_visualbackendtest.mk
@@ -46,7 +46,6 @@ $(eval $(call gb_Executable_add_libs,visualbackendtest,\
	-lm \
	-ldl \
	-lpthread \
    -lGL \
    -lX11 \
))

diff --git a/vcl/Library_vcl.mk b/vcl/Library_vcl.mk
index 1aae3d7..ebffb7c 100644
--- a/vcl/Library_vcl.mk
+++ b/vcl/Library_vcl.mk
@@ -122,7 +122,7 @@ $(eval $(call gb_Library_use_externals,vcl,\
))
ifeq ($(ENABLE_HEADLESS),)
$(eval $(call gb_Library_use_externals,vcl,\
     glew \
     epoxy \
 ))
endif

@@ -621,7 +621,6 @@ ifeq ($(OS), $(filter LINUX %BSD SOLARIS, $(OS)))
$(eval $(call gb_Library_add_libs,vcl,\
    -lm $(DLOPEN_LIBS) \
    -lpthread \
    -lGL \
    -lX11 \
    -lXext \
))
diff --git a/vcl/Library_vclplug_gen.mk b/vcl/Library_vclplug_gen.mk
index f281605..0e1c39c1 100644
--- a/vcl/Library_vclplug_gen.mk
+++ b/vcl/Library_vclplug_gen.mk
@@ -51,7 +51,7 @@ $(eval $(call gb_Library_use_externals,vclplug_gen,\
	boost_headers \
	cairo \
	graphite \
	glew \
	epoxy \
	glm_headers \
	harfbuzz \
	icu_headers \
@@ -65,7 +65,6 @@ $(eval $(call gb_Library_add_libs,vclplug_gen,\
	-lXext \
	-lSM \
	-lICE \
	-lGL \
))

$(eval $(call gb_Library_add_exception_objects,vclplug_gen,\
diff --git a/vcl/Library_vclplug_gtk.mk b/vcl/Library_vclplug_gtk.mk
index c32a127..67247b7 100644
--- a/vcl/Library_vclplug_gtk.mk
+++ b/vcl/Library_vclplug_gtk.mk
@@ -59,7 +59,7 @@ $(eval $(call gb_Library_use_externals,vclplug_gtk,\
	cairo \
	dbus \
	gio \
	glew \
	epoxy \
	gtk \
	gthread \
	icuuc \
diff --git a/vcl/Library_vclplug_gtk3.mk b/vcl/Library_vclplug_gtk3.mk
index 8d013d9..1457c1a 100644
--- a/vcl/Library_vclplug_gtk3.mk
+++ b/vcl/Library_vclplug_gtk3.mk
@@ -75,7 +75,7 @@ $(eval $(call gb_Library_use_libraries,vclplug_gtk3,\

$(eval $(call gb_Library_use_externals,vclplug_gtk3,\
	boost_headers \
	glew \
	epoxy \
	dbus \
))

diff --git a/vcl/Library_vclplug_kde4.mk b/vcl/Library_vclplug_kde4.mk
index 30c4069..acd7bd5 100644
--- a/vcl/Library_vclplug_kde4.mk
+++ b/vcl/Library_vclplug_kde4.mk
@@ -54,7 +54,7 @@ $(eval $(call gb_Library_use_externals,vclplug_kde4,\
	boost_headers \
	icuuc \
	kde4 \
	glew \
	epoxy \
))

$(eval $(call gb_Library_add_libs,vclplug_kde4,\
diff --git a/vcl/inc/opengl/LineRenderUtils.hxx b/vcl/inc/opengl/LineRenderUtils.hxx
index 58ae6a8..e3f375b 100644
--- a/vcl/inc/opengl/LineRenderUtils.hxx
+++ b/vcl/inc/opengl/LineRenderUtils.hxx
@@ -11,7 +11,6 @@
#ifndef INCLUDED_VCL_INC_OPENGL_LINERENDERUTILS_H
#define INCLUDED_VCL_INC_OPENGL_LINERENDERUTILS_H

#include <GL/glew.h>
#include "opengl/VertexUtils.hxx"
#include "opengl/RenderList.hxx"

diff --git a/vcl/inc/opengl/VertexUtils.hxx b/vcl/inc/opengl/VertexUtils.hxx
index f9804ec..de2c070 100644
--- a/vcl/inc/opengl/VertexUtils.hxx
+++ b/vcl/inc/opengl/VertexUtils.hxx
@@ -12,7 +12,7 @@
#define INCLUDED_VCL_INC_OPENGL_VERTEXUTILS_H

#include <basegfx/numeric/ftools.hxx>
#include <GL/glew.h>
#include <epoxy/gl.h>
#include <glm/gtx/norm.hpp>
#include <vcl/salgtype.hxx>
#include <vector>
diff --git a/vcl/inc/opengl/framebuffer.hxx b/vcl/inc/opengl/framebuffer.hxx
index ec7a450..a2dbd1e 100644
--- a/vcl/inc/opengl/framebuffer.hxx
+++ b/vcl/inc/opengl/framebuffer.hxx
@@ -10,7 +10,6 @@
#ifndef INCLUDED_VCL_INC_OPENGL_FRAMEBUFFER_H
#define INCLUDED_VCL_INC_OPENGL_FRAMEBUFFER_H

#include <GL/glew.h>
#include <vcl/dllapi.h>

#include <opengl/texture.hxx>
diff --git a/vcl/inc/opengl/program.hxx b/vcl/inc/opengl/program.hxx
index 73cdb7f..4632ddf 100644
--- a/vcl/inc/opengl/program.hxx
+++ b/vcl/inc/opengl/program.hxx
@@ -14,7 +14,6 @@

#include <list>

#include <GL/glew.h>
#include <vcl/dllapi.h>

#include <basegfx/point/b2dpoint.hxx>
diff --git a/vcl/inc/opengl/texture.hxx b/vcl/inc/opengl/texture.hxx
index a0c8029..fd4eb97 100644
--- a/vcl/inc/opengl/texture.hxx
+++ b/vcl/inc/opengl/texture.hxx
@@ -20,7 +20,7 @@
#ifndef INCLUDED_VCL_INC_OPENGL_TEXTURE_H
#define INCLUDED_VCL_INC_OPENGL_TEXTURE_H

#include <GL/glew.h>
#include <epoxy/gl.h>
#include <vcl/dllapi.h>
#include <vcl/salgtype.hxx>
#include <rtl/ustring.hxx>
diff --git a/vcl/inc/pch/precompiled_vcl.hxx b/vcl/inc/pch/precompiled_vcl.hxx
index 235bb91..7d32977 100644
--- a/vcl/inc/pch/precompiled_vcl.hxx
+++ b/vcl/inc/pch/precompiled_vcl.hxx
@@ -55,6 +55,7 @@
#include <boost/math/special_functions/sinc.hpp>
#include <boost/multi_array.hpp>
#include <boost/optional.hpp>
#include <epoxy/gl.h>
#include <osl/conditn.hxx>
#include <osl/diagnose.h>
#include <osl/diagnose.hxx>
@@ -183,7 +184,6 @@
#include <vcl/virdev.hxx>
#include <vcl/window.hxx>
#include <vcl/wrkwin.hxx>
#include <GL/glew.h>
#include <PhysicalFontCollection.hxx>
#include <PhysicalFontFace.hxx>
#include <PhysicalFontFamily.hxx>
diff --git a/vcl/inc/unx/saldisp.hxx b/vcl/inc/unx/saldisp.hxx
index 64998df..339ba80 100644
--- a/vcl/inc/unx/saldisp.hxx
+++ b/vcl/inc/unx/saldisp.hxx
@@ -28,7 +28,7 @@ class   SalXLib;
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/extensions/Xrender.h>
#include "GL/glxew.h"
#include <epoxy/glx.h>

#include <unx/salunx.h>
#include <unx/saltype.h>
diff --git a/vcl/opengl/win/gdiimpl.cxx b/vcl/opengl/win/gdiimpl.cxx
index 1704a19..0d0159d 100644
--- a/vcl/opengl/win/gdiimpl.cxx
+++ b/vcl/opengl/win/gdiimpl.cxx
@@ -16,9 +16,10 @@
#include <win/saldata.hxx>
#include <win/salframe.h>
#include <win/salinst.h>
#include <GL/wglew.h>
#include <epoxy/wgl.h>

static std::vector<HGLRC> g_vShareList;
static bool g_bAnyCurrent;

class GLWinWindow : public GLWindow
{
@@ -70,6 +71,7 @@ void WinOpenGLContext::resetCurrent()
    OpenGLZone aZone;

    wglMakeCurrent(nullptr, nullptr);
    g_bAnyCurrent = false;
}

bool WinOpenGLContext::isCurrent()
@@ -81,7 +83,7 @@ bool WinOpenGLContext::isCurrent()

bool WinOpenGLContext::isAnyCurrent()
{
    return wglGetCurrentContext() != nullptr;
    return g_bAnyCurrent && wglGetCurrentContext() != nullptr;
}

void WinOpenGLContext::makeCurrent()
@@ -95,10 +97,13 @@ void WinOpenGLContext::makeCurrent()

    if (!wglMakeCurrent(m_aGLWin.hDC, m_aGLWin.hRC))
    {
        g_bAnyCurrent = false;
        SAL_WARN("vcl.opengl", "wglMakeCurrent failed: " << WindowsErrorString(GetLastError()));
        return;
    }

    g_bAnyCurrent = true;

    registerAsCurrent();
}

@@ -140,7 +145,10 @@ void WinOpenGLContext::destroyCurrentContext()
            g_vShareList.erase(itr);

        if (wglGetCurrentContext() != nullptr)
        {
            wglMakeCurrent(nullptr, nullptr);
            g_bAnyCurrent = false;
        }
        wglDeleteContext( m_aGLWin.hRC );
        ReleaseDC( m_aGLWin.hWnd, m_aGLWin.hDC );
        m_aGLWin.hRC = nullptr;
@@ -208,11 +216,13 @@ bool InitTempWindow(HWND& hwnd, int width, int height, const PIXELFORMATDESCRIPT
    if(!ret)
    {
        wglMakeCurrent(nullptr, nullptr);
        g_bAnyCurrent = false;
        wglDeleteContext(glWin.hRC);
        ReleaseDC(hwnd, glWin.hDC);
        DestroyWindow(hwnd);
        return false;
    }
    g_bAnyCurrent = false;

    return true;
}
@@ -275,6 +285,7 @@ bool InitMultisample(const PIXELFORMATDESCRIPTOR& pfd, int& rPixelFormat,
    {
        SAL_WARN("vcl.opengl", "Device doesn't support multisample");
        wglMakeCurrent(nullptr, nullptr);
        g_bAnyCurrent = false;
        wglDeleteContext(glWin.hRC);
        ReleaseDC(hWnd, glWin.hDC);
        DestroyWindow(hWnd);
@@ -285,6 +296,7 @@ bool InitMultisample(const PIXELFORMATDESCRIPTOR& pfd, int& rPixelFormat,
    if (!fn_wglChoosePixelFormatARB)
    {
        wglMakeCurrent(nullptr, nullptr);
        g_bAnyCurrent = false;
        wglDeleteContext(glWin.hRC);
        ReleaseDC(hWnd, glWin.hDC);
        DestroyWindow(hWnd);
@@ -341,6 +353,7 @@ bool InitMultisample(const PIXELFORMATDESCRIPTOR& pfd, int& rPixelFormat,
        bArbMultisampleSupported = true;
        rPixelFormat = pixelFormat;
        wglMakeCurrent(nullptr, nullptr);
        g_bAnyCurrent = false;
        wglDeleteContext(glWin.hRC);
        ReleaseDC(hWnd, glWin.hDC);
        DestroyWindow(hWnd);
@@ -355,6 +368,7 @@ bool InitMultisample(const PIXELFORMATDESCRIPTOR& pfd, int& rPixelFormat,
        bArbMultisampleSupported = true;
        rPixelFormat = pixelFormat;
        wglMakeCurrent(nullptr, nullptr);
        g_bAnyCurrent = false;
        wglDeleteContext(glWin.hRC);
        ReleaseDC(hWnd, glWin.hDC);
        DestroyWindow(hWnd);
@@ -362,6 +376,7 @@ bool InitMultisample(const PIXELFORMATDESCRIPTOR& pfd, int& rPixelFormat,
    }
    // Return the valid format
    wglMakeCurrent(nullptr, nullptr);
    g_bAnyCurrent = false;
    wglDeleteContext(glWin.hRC);
    ReleaseDC(hWnd, glWin.hDC);
    DestroyWindow(hWnd);
@@ -542,13 +557,17 @@ bool WinOpenGLContext::ImplInit()

    if (!wglMakeCurrent(m_aGLWin.hDC, hTempRC))
    {
        g_bAnyCurrent = false;
        SAL_WARN("vcl.opengl", "wglMakeCurrent failed: "<< WindowsErrorString(GetLastError()));
        return false;
    }

    if (!InitGLEW())
    g_bAnyCurrent = true;

    if (!InitGL())
    {
        wglMakeCurrent(NULL, NULL);
        g_bAnyCurrent = false;
        wglDeleteContext(hTempRC);
        return false;
    }
@@ -560,6 +579,7 @@ bool WinOpenGLContext::ImplInit()
    if (!wglCreateContextAttribsARB)
    {
        wglMakeCurrent(nullptr, nullptr);
        g_bAnyCurrent = false;
        wglDeleteContext(hTempRC);
        return false;
    }
@@ -578,6 +598,7 @@ bool WinOpenGLContext::ImplInit()
    {
        SAL_WARN("vcl.opengl", "wglCreateContextAttribsARB failed: "<< WindowsErrorString(GetLastError()));
        wglMakeCurrent(nullptr, nullptr);
        g_bAnyCurrent = false;
        wglDeleteContext(hTempRC);
        return false;
    }
@@ -585,19 +606,24 @@ bool WinOpenGLContext::ImplInit()
    if (!compiledShaderBinariesWork())
    {
        wglMakeCurrent(nullptr, nullptr);
        g_bAnyCurrent = false;
        wglDeleteContext(hTempRC);
        return false;
    }

    wglMakeCurrent(nullptr, nullptr);
    g_bAnyCurrent = false;
    wglDeleteContext(hTempRC);

    if (!wglMakeCurrent(m_aGLWin.hDC, m_aGLWin.hRC))
    {
        g_bAnyCurrent = false;
        SAL_WARN("vcl.opengl", "wglMakeCurrent failed: " << WindowsErrorString(GetLastError()));
        return false;
    }

    g_bAnyCurrent = true;

    if (bFirstCall)
    {
        // Checking texture size
@@ -629,7 +655,7 @@ bool WinOpenGLContext::ImplInit()
        }
    }

    InitGLEWDebugging();
    InitGLDebugging();

    g_vShareList.push_back(m_aGLWin.hRC);

diff --git a/vcl/opengl/x11/gdiimpl.cxx b/vcl/opengl/x11/gdiimpl.cxx
index 82f8bc9..292dd14 100644
--- a/vcl/opengl/x11/gdiimpl.cxx
+++ b/vcl/opengl/x11/gdiimpl.cxx
@@ -32,6 +32,7 @@
#include <o3tl/lru_map.hxx>

static std::vector<GLXContext> g_vShareList;
static bool g_bAnyCurrent;

class X11OpenGLContext : public OpenGLContext
{
@@ -184,23 +185,10 @@ namespace
        return pFBC;
    }

    // we need them before glew can initialize them
    // glew needs an OpenGL context so we need to get the address manually
    void initOpenGLFunctionPointers()
    {
        glXChooseFBConfig = reinterpret_cast<GLXFBConfig*(*)(Display *dpy, int screen, const int *attrib_list, int *nelements)>(glXGetProcAddressARB(reinterpret_cast<GLubyte const *>("glXChooseFBConfig")));
        glXGetVisualFromFBConfig = reinterpret_cast<XVisualInfo*(*)(Display *dpy, GLXFBConfig config)>(glXGetProcAddressARB(reinterpret_cast<GLubyte const *>("glXGetVisualFromFBConfig")));    // try to find a visual for the current set of attributes
        glXGetFBConfigAttrib = reinterpret_cast<int(*)(Display *dpy, GLXFBConfig config, int attribute, int* value)>(glXGetProcAddressARB(reinterpret_cast<GLubyte const *>("glXGetFBConfigAttrib")));
        glXCreateContextAttribsARB = reinterpret_cast<GLXContext(*)(Display*, GLXFBConfig, GLXContext, Bool, const int*)>(glXGetProcAddressARB(reinterpret_cast<const GLubyte *>("glXCreateContextAttribsARB")));
        glXCreatePixmap = reinterpret_cast<GLXPixmap(*)(Display*, GLXFBConfig, Pixmap, const int*)>(glXGetProcAddressARB(reinterpret_cast<const GLubyte *>("glXCreatePixmap")));
    }

    Visual* getVisual(Display* dpy, Window win)
    {
        OpenGLZone aZone;

        initOpenGLFunctionPointers();

        XWindowAttributes xattr;
        if( !XGetWindowAttributes( dpy, win, &xattr ) )
        {
@@ -235,7 +223,10 @@ void X11OpenGLContext::resetCurrent()
    OpenGLZone aZone;

    if (m_aGLWin.dpy)
    {
        glXMakeCurrent(m_aGLWin.dpy, None, nullptr);
        g_bAnyCurrent = false;
    }
}

bool X11OpenGLContext::isCurrent()
@@ -247,7 +238,7 @@ bool X11OpenGLContext::isCurrent()

bool X11OpenGLContext::isAnyCurrent()
{
    return glXGetCurrentContext() != None;
    return g_bAnyCurrent && glXGetCurrentContext() != None;
}

SystemWindowData X11OpenGLContext::generateWinData(vcl::Window* pParent, bool /*bRequestLegacyContext*/)
@@ -266,8 +257,6 @@ SystemWindowData X11OpenGLContext::generateWinData(vcl::Window* pParent, bool /*
    if( dpy == nullptr || !glXQueryExtension( dpy, nullptr, nullptr ) )
        return aWinData;

    initOpenGLFunctionPointers();

    int best_fbc = -1;
    GLXFBConfig* pFBC = getFBConfig(dpy, win, best_fbc, true, false);

@@ -355,10 +344,13 @@ bool X11OpenGLContext::ImplInit()

    if( !glXMakeCurrent( m_aGLWin.dpy, m_aGLWin.win, m_aGLWin.ctx ) )
    {
        g_bAnyCurrent = false;
        SAL_WARN("vcl.opengl", "unable to select current GLX context");
        return false;
    }

    g_bAnyCurrent = true;

    int glxMinor, glxMajor;
    double nGLXVersion = 0;
    if( glXQueryVersion( m_aGLWin.dpy, &glxMajor, &glxMinor ) )
@@ -400,8 +392,8 @@ bool X11OpenGLContext::ImplInit()
        }
    }

    bool bRet = InitGLEW();
    InitGLEWDebugging();
    bool bRet = InitGL();
    InitGLDebugging();

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);

@@ -427,10 +419,12 @@ void X11OpenGLContext::makeCurrent()
    {
        if (!glXMakeCurrent( m_aGLWin.dpy, m_aGLWin.win, m_aGLWin.ctx ))
        {
            g_bAnyCurrent = false;
            SAL_WARN("vcl.opengl", "OpenGLContext::makeCurrent failed "
                     "on drawable " << m_aGLWin.win);
            return;
        }
        g_bAnyCurrent = true;
    }

    registerAsCurrent();
@@ -445,6 +439,7 @@ void X11OpenGLContext::destroyCurrentContext()
            g_vShareList.erase(itr);

        glXMakeCurrent(m_aGLWin.dpy, None, nullptr);
        g_bAnyCurrent = false;
        if( glGetError() != GL_NO_ERROR )
        {
            SAL_WARN("vcl.opengl", "glError: " << glGetError());
diff --git a/vcl/osx/salobj.cxx b/vcl/osx/salobj.cxx
index c75f2a7..9e6e746 100644
--- a/vcl/osx/salobj.cxx
+++ b/vcl/osx/salobj.cxx
@@ -321,8 +321,8 @@ bool AquaOpenGLContext::ImplInit()
    NSOpenGLView* pView = getOpenGLView();
    [[pView openGLContext] makeCurrentContext];

    bool bRet = InitGLEW();
    InitGLEWDebugging();
    bool bRet = InitGL();
    InitGLDebugging();
    return bRet;
}

diff --git a/vcl/source/opengl/OpenGLContext.cxx b/vcl/source/opengl/OpenGLContext.cxx
index 93bde70..c04a0cf 100644
--- a/vcl/source/opengl/OpenGLContext.cxx
+++ b/vcl/source/opengl/OpenGLContext.cxx
@@ -7,7 +7,6 @@
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */

#include <config_opengl.h>
#include <chrono>

#include <vcl/opengl/OpenGLContext.hxx>
@@ -205,13 +204,8 @@ extern "C" void
APIENTRY
#endif
debug_callback(GLenum source, GLenum type, GLuint id,
        GLenum severity, GLsizei , const GLchar* message,
#if HAVE_GLEW_1_12
        const GLvoid*
#else
        GLvoid*
#endif
        )
               GLenum severity, GLsizei , const GLchar* message,
               const GLvoid*)
{
    // ignore Nvidia's 131218: "Program/shader state performance warning: Fragment Shader is going to be recompiled because the shader key based on GL state mismatches."
    // the GLSL compiler is a bit too aggressive in optimizing the state based on the current OpenGL state
@@ -280,30 +274,14 @@ OUString getGLString(GLenum eGlEnum)
    return sString;
}

bool OpenGLContext::InitGLEW()
bool OpenGLContext::InitGL()
{
    static bool bGlewInit = false;
    if(!bGlewInit)
    {
        OpenGLZone aZone;

        glewExperimental = GL_TRUE;
        GLenum err = glewInit();
        if (err != GLEW_OK)
        {
            SAL_WARN("vcl.opengl", "Failed to initialize GLEW: " << glewGetErrorString(err));
            return false;
        }
        else
            bGlewInit = true;
    }

    VCL_GL_INFO("OpenGLContext::ImplInit----end");
    VCL_GL_INFO("Vendor: " << getGLString(GL_VENDOR) << " Renderer: " << getGLString(GL_RENDERER) << " GL version: " << OpenGLHelper::getGLVersion());
    mbInitialized = true;

    // I think we need at least GL 3.0
    if (!GLEW_VERSION_3_0)
    if (epoxy_gl_version() < 30)
    {
        SAL_WARN("vcl.opengl", "We don't have at least OpenGL 3.0");
        return false;
@@ -319,11 +297,11 @@ bool OpenGLContext::InitGLEW()
    return true;
}

void OpenGLContext::InitGLEWDebugging()
void OpenGLContext::InitGLDebugging()
{
#ifdef DBG_UTIL
    // only enable debug output in dbgutil build
    if( GLEW_ARB_debug_output)
    if (epoxy_has_gl_extension("GL_ARB_debug_output"))
    {
        OpenGLZone aZone;

diff --git a/vcl/source/opengl/OpenGLHelper.cxx b/vcl/source/opengl/OpenGLHelper.cxx
index f07e7dc..9b91415 100644
--- a/vcl/source/opengl/OpenGLHelper.cxx
+++ b/vcl/source/opengl/OpenGLHelper.cxx
@@ -401,7 +401,7 @@ GLint OpenGLHelper::LoadShaders(const OUString& rVertexShaderName,
        aGeometryShaderSource = getShaderSource(rGeometryShaderName);

    GLint bBinaryResult = GL_FALSE;
    if( GLEW_ARB_get_program_binary && !rDigest.isEmpty() )
    if (epoxy_has_gl_extension("GL_ARB_get_program_binary") && !rDigest.isEmpty())
    {
        OString aFileName =
                createFileName(rVertexShaderName, rFragmentShaderName, rGeometryShaderName, rDigest);
@@ -473,7 +473,7 @@ GLint OpenGLHelper::LoadShaders(const OUString& rVertexShaderName,
    if (bHasGeometryShader)
        glAttachShader(ProgramID, GeometryShaderID);

    if( GLEW_ARB_get_program_binary && !rDigest.isEmpty() )
    if (epoxy_has_gl_extension("GL_ARB_get_program_binary") && !rDigest.isEmpty())
    {
        glProgramParameteri(ProgramID, GL_PROGRAM_BINARY_RETRIEVABLE_HINT, GL_TRUE);
        glLinkProgram(ProgramID);
@@ -1085,14 +1085,14 @@ void OpenGLHelper::debugMsgPrint(const int nType, const char *pFormat, ...)
    {
        OpenGLZone aZone;

        if (GLEW_KHR_debug)
        if (epoxy_has_gl_extension("GL_KHR_debug"))
            glDebugMessageInsert(GL_DEBUG_SOURCE_APPLICATION,
                                 GL_DEBUG_TYPE_OTHER,
                                 1, // one[sic] id is as good as another ?
                                 // GL_DEBUG_SEVERITY_NOTIFICATION for >= GL4.3 ?
                                 GL_DEBUG_SEVERITY_LOW,
                                 strlen(pStr), pStr);
        else if (GLEW_AMD_debug_output)
        else if (epoxy_has_gl_extension("GL_AMD_debug_output"))
            glDebugMessageInsertAMD(GL_DEBUG_CATEGORY_APPLICATION_AMD,
                                    GL_DEBUG_SEVERITY_LOW_AMD,
                                    1, // one[sic] id is as good as another ?
diff --git a/vcl/unx/generic/app/saldisp.cxx b/vcl/unx/generic/app/saldisp.cxx
index 0bff9b8..34f0e6f 100644
--- a/vcl/unx/generic/app/saldisp.cxx
+++ b/vcl/unx/generic/app/saldisp.cxx
@@ -47,7 +47,6 @@
#include <X11/extensions/Xinerama.h>
#endif

#include "GL/glxew.h"
#include <opengl/zone.hxx>

#include <vcl/svapp.hxx>
diff --git a/vcl/workben/icontest.cxx b/vcl/workben/icontest.cxx
index ae2973b..32d6ae8 100644
--- a/vcl/workben/icontest.cxx
+++ b/vcl/workben/icontest.cxx
@@ -20,8 +20,6 @@

#include <math.h>

#include <GL/glew.h>

#include <glm/gtx/bit.hpp>

#include <com/sun/star/lang/XComponent.hpp>