gnu: icecat: Use system harfbuzz and graphite2 libraries.

* gnu/packages/patches/icecat-use-system-harfbuzz.patch,
gnu/packages/patches/icecat-use-system-graphite2.patch: New files.
* gnu/local.mk (dist_patch_DATA): Add them.
* gnu/packages/gnuzilla.scm (icecat)[source]: Add patches.  Delete
"gfx/harfbuzz" and "gfx/graphite2" in the snippet.
[inputs]: Add harfbuzz and graphite2.
[arguments]: Add "--with-system-harfbuzz" and "--with-system-graphite2" to
configure-flags.

2 files changed, 527 insertions, 0 deletions

diff --git a/gnu/packages/patches/icecat-use-system-graphite2.patch b/gnu/packages/patches/icecat-use-system-graphite2.patch
new file mode 100644
index 0000000000..188fba2bc9
--- /dev/null
+++ b/gnu/packages/patches/icecat-use-system-graphite2.patch
@@ -0,0 +1,248 @@
+Copied from <https://reviewboard.mozilla.org/r/90218/diff/4>
+See <https://bugzilla.mozilla.org/show_bug.cgi?id=847568>
+
+diff --git a/config/Makefile.in b/config/Makefile.in
+--- a/config/Makefile.in
++++ b/config/Makefile.in
+@@ -36,16 +36,17 @@ ifdef WRAP_SYSTEM_INCLUDES
+ export-preqs = \
+   $(call mkdir_deps,system_wrappers) \
+   $(NULL)
+ 
+ export:: $(export-preqs)
+ 	$(PYTHON) -m mozbuild.action.preprocessor $(DEFINES) $(ACDEFINES) \
+ 		-DMOZ_TREE_CAIRO=$(MOZ_TREE_CAIRO) \
+ 		-DMOZ_TREE_PIXMAN=$(MOZ_TREE_PIXMAN) \
++		-DMOZ_SYSTEM_GRAPHITE2=$(MOZ_SYSTEM_GRAPHITE2) \
+ 		-DMOZ_SYSTEM_HARFBUZZ=$(MOZ_SYSTEM_HARFBUZZ) \
+ 		-DMOZ_SYSTEM_HUNSPELL=$(MOZ_SYSTEM_HUNSPELL) \
+ 		-DMOZ_SYSTEM_BZ2=$(MOZ_SYSTEM_BZ2) \
+ 		-DMOZ_SYSTEM_ZLIB=$(MOZ_SYSTEM_ZLIB) \
+ 		-DMOZ_SYSTEM_PNG=$(MOZ_SYSTEM_PNG) \
+ 		-DMOZ_SYSTEM_JPEG=$(MOZ_SYSTEM_JPEG) \
+ 		-DMOZ_SYSTEM_LIBEVENT=$(MOZ_SYSTEM_LIBEVENT) \
+ 		-DMOZ_SYSTEM_LIBVPX=$(MOZ_SYSTEM_LIBVPX) \
+diff --git a/config/system-headers b/config/system-headers
+--- a/config/system-headers
++++ b/config/system-headers
+@@ -1260,16 +1260,20 @@ zlib.h
+ #ifdef MOZ_ENABLE_STARTUP_NOTIFICATION
+ libsn/sn.h
+ libsn/sn-common.h
+ libsn/sn-launchee.h
+ libsn/sn-launcher.h
+ libsn/sn-monitor.h
+ libsn/sn-util.h
+ #endif
++#if MOZ_SYSTEM_GRAPHITE2==1
++graphite2/Font.h
++graphite2/Segment.h
++#endif
+ #if MOZ_SYSTEM_HARFBUZZ==1
+ harfbuzz/hb-glib.h
+ harfbuzz/hb-ot.h
+ harfbuzz/hb.h
+ #endif
+ #if MOZ_SYSTEM_HUNSPELL==1
+ hunspell.hxx
+ #endif
+diff --git a/gfx/graphite2/moz-gr-update.sh b/gfx/graphite2/moz-gr-update.sh
+--- a/gfx/graphite2/moz-gr-update.sh
++++ b/gfx/graphite2/moz-gr-update.sh
+@@ -1,11 +1,12 @@
+ #!/bin/bash
+ 
+ # Script used to update the Graphite2 library in the mozilla source tree
++# and bump version for --with-system-graphite2
+ 
+ # This script lives in gfx/graphite2, along with the library source,
+ # but must be run from the top level of the mozilla-central tree.
+ 
+ # Run as
+ #
+ #    ./gfx/graphite2/moz-gr-update.sh RELEASE
+ #
+@@ -32,22 +33,26 @@ echo "This directory contains the Graphi
+ echo "$TARBALL" >> gfx/graphite2/README.mozilla
+ echo ""
+ echo "See" $0 "for update procedure." >> gfx/graphite2/README.mozilla
+ 
+ # fix up includes because of bug 721839 (cstdio) and bug 803066 (Windows.h)
+ #find gfx/graphite2/ -name "*.cpp" -exec perl -p -i -e "s/<cstdio>/<stdio.h>/;s/Windows.h/windows.h/;" {} \;
+ #find gfx/graphite2/ -name "*.h" -exec perl -p -i -e "s/<cstdio>/<stdio.h>/;s/Windows.h/windows.h/;" {} \;
+ 
++# chase version for --with-system-graphite2
++perl -p -i -e "s/[0-9]+\,[0-9]+\,[0-9]+/$RELEASE/ and tr/./,/ \
++  if /GR2_VERSION_REQUIRE/" old-configure.in
++
+ # summarize what's been touched
+ echo Updated to $RELEASE.
+ echo Here is what changed in the gfx/graphite2 directory:
+ echo
+ 
+-hg stat gfx/graphite2
++hg stat old-configure.in gfx/graphite2
+ 
+ echo
+ echo If gfx/graphite2/src/files.mk has changed, please make corresponding
+ echo changes to gfx/graphite2/src/moz.build
+ echo
+ 
+ echo
+ echo Now use hg commands to create a patch for the mozilla tree.
+diff --git a/gfx/moz.build b/gfx/moz.build
+--- a/gfx/moz.build
++++ b/gfx/moz.build
+@@ -2,28 +2,30 @@
+ # vim: set filetype=python:
+ # 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/.
+ 
+ if CONFIG['MOZ_TREE_CAIRO']:
+     DIRS += ['cairo']
+ 
++if not CONFIG['MOZ_SYSTEM_GRAPHITE2']:
++    DIRS += ['graphite2/src' ]
++
+ if not CONFIG['MOZ_SYSTEM_HARFBUZZ']:
+     DIRS += ['harfbuzz/src']
+ 
+ DIRS += [
+     '2d',
+     'ycbcr',
+     'angle',
+     'src',
+     'qcms',
+     'gl',
+     'layers',
+-    'graphite2/src',
+     'ots/src',
+     'thebes',
+     'ipc',
+     'vr',
+     'config',
+ ]
+ 
+ if CONFIG['MOZ_ENABLE_SKIA']:
+diff --git a/gfx/thebes/moz.build b/gfx/thebes/moz.build
+--- a/gfx/thebes/moz.build
++++ b/gfx/thebes/moz.build
+@@ -261,16 +261,19 @@ if CONFIG['MOZ_WIDGET_TOOLKIT'] in ('and
+     CXXFLAGS += CONFIG['CAIRO_FT_CFLAGS']
+ 
+ if CONFIG['MOZ_WIDGET_TOOLKIT'] in ('gtk2', 'gtk3'):
+     CXXFLAGS += CONFIG['MOZ_PANGO_CFLAGS']
+ 
+ LOCAL_INCLUDES += CONFIG['SKIA_INCLUDES']
+ LOCAL_INCLUDES += ['/media/libyuv/include']
+ 
+-DEFINES['GRAPHITE2_STATIC'] = True
++if CONFIG['MOZ_SYSTEM_GRAPHITE2']:
++    CXXFLAGS += CONFIG['MOZ_GRAPHITE2_CFLAGS']
++else:
++    DEFINES['GRAPHITE2_STATIC'] = True
+ 
+ if CONFIG['MOZ_SYSTEM_HARFBUZZ']:
+     CXXFLAGS += CONFIG['MOZ_HARFBUZZ_CFLAGS']
+ 
+ if CONFIG['CLANG_CXX']:
+     # Suppress warnings from Skia header files.
+     SOURCES['gfxPlatform.cpp'].flags += ['-Wno-implicit-fallthrough']
+diff --git a/moz.configure b/moz.configure
+--- a/moz.configure
++++ b/moz.configure
+@@ -260,16 +260,28 @@ def extra_programs(target):
+ 
+ check_prog('DSYMUTIL', delayed_getattr(extra_programs, 'DSYMUTIL'),
+            allow_missing=True)
+ check_prog('GENISOIMAGE', delayed_getattr(extra_programs, 'GENISOIMAGE'),
+            allow_missing=True)
+ check_prog('RPMBUILD', delayed_getattr(extra_programs, 'RPMBUILD'),
+            allow_missing=True)
+ 
++option('--with-system-graphite2',
++       help="Use system graphite2 (located with pkgconfig)")
++
++@depends('--with-system-graphite2', compile_environment)
++def check_for_graphite2(value, compile_env):
++    return value and compile_env
++
++system_graphite2 = pkg_check_modules('MOZ_GRAPHITE2', 'graphite2',
++                                    check_for_graphite2)
++
++set_config('MOZ_SYSTEM_GRAPHITE2', depends_if(system_graphite2)(lambda _: True))
++
+ option('--with-system-harfbuzz',
+        help="Use system harfbuzz (located with pkgconfig)")
+ 
+ @depends('--with-system-harfbuzz', compile_environment)
+ def check_for_harfbuzz(value, compile_env):
+     return value and compile_env
+ 
+ system_harfbuzz = pkg_check_modules('MOZ_HARFBUZZ', 'harfbuzz >= 1.3.3',
+diff --git a/old-configure.in b/old-configure.in
+--- a/old-configure.in
++++ b/old-configure.in
+@@ -5060,16 +5060,37 @@ if test "$USE_FC_FREETYPE"; then
+         CPPFLAGS="$CPPFLAGS $FT2_CFLAGS $XCFLAGS"
+         MOZ_CHECK_HEADERS([fontconfig/fcfreetype.h], ,
+             [AC_MSG_ERROR(Can't find header fontconfig/fcfreetype.h.)], [#include <fontconfig/fontconfig.h>])
+         CPPFLAGS="$_SAVE_CPPFLAGS"
+     fi
+ fi
+ 
+ dnl ========================================================
++dnl Check for graphite2
++dnl ========================================================
++if test -n "$MOZ_SYSTEM_GRAPHITE2"; then
++    dnl graphite2.pc has bogus version, check manually
++    _SAVE_CFLAGS=$CFLAGS
++    CFLAGS="$CFLAGS $MOZ_GRAPHITE2_CFLAGS"
++    AC_TRY_COMPILE([ #include <graphite2/Font.h>
++                     #define GR2_VERSION_REQUIRE(major,minor,bugfix)  \
++                             ( GR2_VERSION_MAJOR * 10000 + GR2_VERSION_MINOR \
++                               * 100 + GR2_VERSION_BUGFIX >= \
++                               (major) * 10000 + (minor) * 100 + (bugfix) )
++                   ], [
++                     #if !GR2_VERSION_REQUIRE(1,3,8)
++                     #error "Insufficient graphite2 version."
++                     #endif
++                   ], [],
++                   [AC_MSG_ERROR([--with-system-graphite2 requested but no working libgraphite2 found])])
++    CFLAGS=$_SAVE_CFLAGS
++fi
++
++dnl ========================================================
+ dnl Check for pixman and cairo
+ dnl ========================================================
+ 
+ MOZ_TREE_CAIRO=1
+ MOZ_ARG_ENABLE_BOOL(system-cairo,
+ [  --enable-system-cairo   Use system cairo (located with pkgconfig)],
+ MOZ_TREE_CAIRO=,
+ MOZ_TREE_CAIRO=1 )
+diff --git a/toolkit/library/moz.build b/toolkit/library/moz.build
+--- a/toolkit/library/moz.build
++++ b/toolkit/library/moz.build
+@@ -221,16 +221,19 @@ if CONFIG['SERVO_TARGET_DIR']:
+         OS_LIBS += ['-L%s' % CONFIG['SERVO_TARGET_DIR'], '-lgeckoservo']
+ 
+ if CONFIG['MOZ_SYSTEM_JPEG']:
+     OS_LIBS += CONFIG['MOZ_JPEG_LIBS']
+ 
+ if CONFIG['MOZ_SYSTEM_PNG']:
+     OS_LIBS += CONFIG['MOZ_PNG_LIBS']
+ 
++if CONFIG['MOZ_SYSTEM_GRAPHITE2']:
++    OS_LIBS += CONFIG['MOZ_GRAPHITE2_LIBS']
++
+ if CONFIG['MOZ_SYSTEM_HARFBUZZ']:
+     OS_LIBS += CONFIG['MOZ_HARFBUZZ_LIBS']
+ 
+ if CONFIG['MOZ_SYSTEM_HUNSPELL']:
+     OS_LIBS += CONFIG['MOZ_HUNSPELL_LIBS']
+ 
+ if CONFIG['MOZ_SYSTEM_LIBEVENT']:
+     OS_LIBS += CONFIG['MOZ_LIBEVENT_LIBS']
+
diff --git a/gnu/packages/patches/icecat-use-system-harfbuzz.patch b/gnu/packages/patches/icecat-use-system-harfbuzz.patch
new file mode 100644
index 0000000000..083d404c13
--- /dev/null
+++ b/gnu/packages/patches/icecat-use-system-harfbuzz.patch
@@ -0,0 +1,279 @@
+Copied from <https://reviewboard.mozilla.org/r/35763/diff/9>
+See <https://bugzilla.mozilla.org/show_bug.cgi?id=847568>
+
+diff --git a/config/Makefile.in b/config/Makefile.in
+--- a/config/Makefile.in
++++ b/config/Makefile.in
+@@ -36,16 +36,17 @@ ifdef WRAP_SYSTEM_INCLUDES
+ export-preqs = \
+   $(call mkdir_deps,system_wrappers) \
+   $(NULL)
+ 
+ export:: $(export-preqs)
+ 	$(PYTHON) -m mozbuild.action.preprocessor $(DEFINES) $(ACDEFINES) \
+ 		-DMOZ_TREE_CAIRO=$(MOZ_TREE_CAIRO) \
+ 		-DMOZ_TREE_PIXMAN=$(MOZ_TREE_PIXMAN) \
++		-DMOZ_SYSTEM_HARFBUZZ=$(MOZ_SYSTEM_HARFBUZZ) \
+ 		-DMOZ_SYSTEM_HUNSPELL=$(MOZ_SYSTEM_HUNSPELL) \
+ 		-DMOZ_SYSTEM_BZ2=$(MOZ_SYSTEM_BZ2) \
+ 		-DMOZ_SYSTEM_ZLIB=$(MOZ_SYSTEM_ZLIB) \
+ 		-DMOZ_SYSTEM_PNG=$(MOZ_SYSTEM_PNG) \
+ 		-DMOZ_SYSTEM_JPEG=$(MOZ_SYSTEM_JPEG) \
+ 		-DMOZ_SYSTEM_LIBEVENT=$(MOZ_SYSTEM_LIBEVENT) \
+ 		-DMOZ_SYSTEM_LIBVPX=$(MOZ_SYSTEM_LIBVPX) \
+ 		-DMOZ_SYSTEM_ICU=$(MOZ_SYSTEM_ICU) \
+diff --git a/config/system-headers b/config/system-headers
+--- a/config/system-headers
++++ b/config/system-headers
+@@ -1260,16 +1260,21 @@ zlib.h
+ #ifdef MOZ_ENABLE_STARTUP_NOTIFICATION
+ libsn/sn.h
+ libsn/sn-common.h
+ libsn/sn-launchee.h
+ libsn/sn-launcher.h
+ libsn/sn-monitor.h
+ libsn/sn-util.h
+ #endif
++#if MOZ_SYSTEM_HARFBUZZ==1
++harfbuzz/hb-glib.h
++harfbuzz/hb-ot.h
++harfbuzz/hb.h
++#endif
+ #if MOZ_SYSTEM_HUNSPELL==1
+ hunspell.hxx
+ #endif
+ #if MOZ_SYSTEM_BZ2==1
+ bzlib.h
+ #endif
+ #ifdef MOZ_ENABLE_GIO
+ gio/gio.h
+diff --git a/dom/base/moz.build b/dom/base/moz.build
+--- a/dom/base/moz.build
++++ b/dom/base/moz.build
+@@ -474,16 +474,19 @@ for var in ('MOZ_B2G_RIL'):
+         DEFINES[var] = True
+ 
+ if CONFIG['MOZ_BUILD_APP'] in ['browser', 'mobile/android', 'xulrunner']:
+     DEFINES['HAVE_SIDEBAR'] = True
+ 
+ if CONFIG['MOZ_X11']:
+     CXXFLAGS += CONFIG['TK_CFLAGS']
+ 
++if CONFIG['MOZ_SYSTEM_HARFBUZZ']:
++    CXXFLAGS += CONFIG['MOZ_HARFBUZZ_CFLAGS']
++
+ GENERATED_FILES += [
+     'PropertyUseCounterMap.inc',
+     'UseCounterList.h',
+ ]
+ 
+ countermap = GENERATED_FILES['PropertyUseCounterMap.inc']
+ countermap.script = 'gen-usecounters.py:property_map'
+ countermap.inputs = ['UseCounters.conf']
+diff --git a/gfx/harfbuzz/README-mozilla b/gfx/harfbuzz/README-mozilla
+--- a/gfx/harfbuzz/README-mozilla
++++ b/gfx/harfbuzz/README-mozilla
+@@ -14,8 +14,13 @@ this file when updating harfbuzz, and ch
+ 
+ The normal approach to updating harfbuzz, therefore, is to pull the latest HB
+ source into a scratch directory and do a local build; then copy the original
+ sources AND the generated header mentioned above from the build directory into
+ the mozilla tree.
+ 
+ If the collection of source files changes, manual updates to moz.build may be
+ needed, as we don't use the upstream makefiles.
++
++The in-tree copy may be omitted during build by --with-system-harfbuzz.
++Make sure to keep pkg-config version check within old-configure.in in sync
++with checkout version or increment latest tag by one if it's not based
++on upstream release.
+diff --git a/gfx/moz.build b/gfx/moz.build
+--- a/gfx/moz.build
++++ b/gfx/moz.build
+@@ -2,26 +2,28 @@
+ # vim: set filetype=python:
+ # 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/.
+ 
+ if CONFIG['MOZ_TREE_CAIRO']:
+     DIRS += ['cairo']
+ 
++if not CONFIG['MOZ_SYSTEM_HARFBUZZ']:
++    DIRS += ['harfbuzz/src']
++
+ DIRS += [
+     '2d',
+     'ycbcr',
+     'angle',
+     'src',
+     'qcms',
+     'gl',
+     'layers',
+     'graphite2/src',
+-    'harfbuzz/src',
+     'ots/src',
+     'thebes',
+     'ipc',
+     'vr',
+     'config',
+ ]
+ 
+ if CONFIG['MOZ_ENABLE_SKIA']:
+diff --git a/gfx/skia/generate_mozbuild.py b/gfx/skia/generate_mozbuild.py
+--- a/gfx/skia/generate_mozbuild.py
++++ b/gfx/skia/generate_mozbuild.py
+@@ -138,16 +138,19 @@ if CONFIG['GNU_CXX'] and not CONFIG['CLA
+ if CONFIG['CLANG_CXX'] or CONFIG['CLANG_CL']:
+     CXXFLAGS += [
+         '-Wno-implicit-fallthrough',
+         '-Wno-inconsistent-missing-override',
+         '-Wno-macro-redefined',
+         '-Wno-unused-private-field',
+     ]
+ 
++if CONFIG['MOZ_SYSTEM_HARFBUZZ']:
++    CXXFLAGS += CONFIG['MOZ_HARFBUZZ_CFLAGS']
++
+ if CONFIG['MOZ_WIDGET_TOOLKIT'] in ('gtk2', 'gtk3', 'android'):
+     CXXFLAGS += CONFIG['MOZ_CAIRO_CFLAGS']
+     CXXFLAGS += CONFIG['CAIRO_FT_CFLAGS']
+ 
+ if CONFIG['MOZ_WIDGET_TOOLKIT'] in ('gtk2', 'gtk3'):
+     CXXFLAGS += CONFIG['MOZ_PANGO_CFLAGS']
+ """
+ 
+diff --git a/gfx/skia/moz.build b/gfx/skia/moz.build
+--- a/gfx/skia/moz.build
++++ b/gfx/skia/moz.build
+@@ -748,14 +748,17 @@ if CONFIG['GNU_CXX'] and not CONFIG['CLA
+ if CONFIG['CLANG_CXX'] or CONFIG['CLANG_CL']:
+     CXXFLAGS += [
+         '-Wno-implicit-fallthrough',
+         '-Wno-inconsistent-missing-override',
+         '-Wno-macro-redefined',
+         '-Wno-unused-private-field',
+     ]
+ 
++if CONFIG['MOZ_SYSTEM_HARFBUZZ']:
++    CXXFLAGS += CONFIG['MOZ_HARFBUZZ_CFLAGS']
++
+ if CONFIG['MOZ_WIDGET_TOOLKIT'] in ('gtk2', 'gtk3', 'android'):
+     CXXFLAGS += CONFIG['MOZ_CAIRO_CFLAGS']
+     CXXFLAGS += CONFIG['CAIRO_FT_CFLAGS']
+ 
+ if CONFIG['MOZ_WIDGET_TOOLKIT'] in ('gtk2', 'gtk3'):
+     CXXFLAGS += CONFIG['MOZ_PANGO_CFLAGS']
+diff --git a/gfx/thebes/moz.build b/gfx/thebes/moz.build
+--- a/gfx/thebes/moz.build
++++ b/gfx/thebes/moz.build
+@@ -263,11 +263,14 @@ if CONFIG['MOZ_WIDGET_TOOLKIT'] in ('and
+ if CONFIG['MOZ_WIDGET_TOOLKIT'] in ('gtk2', 'gtk3'):
+     CXXFLAGS += CONFIG['MOZ_PANGO_CFLAGS']
+ 
+ LOCAL_INCLUDES += CONFIG['SKIA_INCLUDES']
+ LOCAL_INCLUDES += ['/media/libyuv/include']
+ 
+ DEFINES['GRAPHITE2_STATIC'] = True
+ 
++if CONFIG['MOZ_SYSTEM_HARFBUZZ']:
++    CXXFLAGS += CONFIG['MOZ_HARFBUZZ_CFLAGS']
++
+ if CONFIG['CLANG_CXX']:
+     # Suppress warnings from Skia header files.
+     SOURCES['gfxPlatform.cpp'].flags += ['-Wno-implicit-fallthrough']
+diff --git a/intl/unicharutil/util/moz.build b/intl/unicharutil/util/moz.build
+--- a/intl/unicharutil/util/moz.build
++++ b/intl/unicharutil/util/moz.build
+@@ -37,9 +37,12 @@ if CONFIG['_MSC_VER']:
+     DEFINES['_USE_ANSI_CPP'] = True
+     # Don't include directives about which CRT to use
+     CFLAGS += ['-Zl']
+     CXXFLAGS += ['-Zl']
+ 
+ if CONFIG['ENABLE_INTL_API']:
+     USE_LIBS += ['icu']
+ 
++if CONFIG['MOZ_SYSTEM_HARFBUZZ']:
++    CXXFLAGS += CONFIG['MOZ_HARFBUZZ_CFLAGS']
++
+ DIST_INSTALL = True
+diff --git a/moz.configure b/moz.configure
+--- a/moz.configure
++++ b/moz.configure
+@@ -260,16 +260,28 @@ def extra_programs(target):
+ 
+ check_prog('DSYMUTIL', delayed_getattr(extra_programs, 'DSYMUTIL'),
+            allow_missing=True)
+ check_prog('GENISOIMAGE', delayed_getattr(extra_programs, 'GENISOIMAGE'),
+            allow_missing=True)
+ check_prog('RPMBUILD', delayed_getattr(extra_programs, 'RPMBUILD'),
+            allow_missing=True)
+ 
++option('--with-system-harfbuzz',
++       help="Use system harfbuzz (located with pkgconfig)")
++
++@depends('--with-system-harfbuzz', compile_environment)
++def check_for_harfbuzz(value, compile_env):
++    return value and compile_env
++
++system_harfbuzz = pkg_check_modules('MOZ_HARFBUZZ', 'harfbuzz >= 1.3.3',
++                                    check_for_harfbuzz)
++
++set_config('MOZ_SYSTEM_HARFBUZZ', depends_if(system_harfbuzz)(lambda _: True))
++
+ option('--enable-system-hunspell',
+        help="Use system hunspell (located with pkgconfig)")
+ 
+ @depends('--enable-system-hunspell', compile_environment)
+ def check_for_hunspell(value, compile_env):
+     return value and compile_env
+ 
+ system_hunspell = pkg_check_modules('MOZ_HUNSPELL', 'hunspell',
+diff --git a/netwerk/dns/moz.build b/netwerk/dns/moz.build
+--- a/netwerk/dns/moz.build
++++ b/netwerk/dns/moz.build
+@@ -61,16 +61,19 @@ etld_data = GENERATED_FILES['etld_data.i
+ etld_data.script = 'prepare_tlds.py'
+ etld_data.inputs = ['effective_tld_names.dat']
+ 
+ # need to include etld_data.inc
+ LOCAL_INCLUDES += [
+     '/netwerk/base',
+ ]
+ 
++if CONFIG['MOZ_SYSTEM_HARFBUZZ']:
++    CXXFLAGS += CONFIG['MOZ_HARFBUZZ_CFLAGS']
++
+ if CONFIG['ENABLE_INTL_API']:
+     DEFINES['IDNA2008'] = True
+     USE_LIBS += ['icu']
+ else:
+     UNIFIED_SOURCES += [
+         'nameprep.c',
+     ]
+ 
+diff --git a/toolkit/library/moz.build b/toolkit/library/moz.build
+--- a/toolkit/library/moz.build
++++ b/toolkit/library/moz.build
+@@ -221,16 +221,19 @@ if CONFIG['SERVO_TARGET_DIR']:
+         OS_LIBS += ['-L%s' % CONFIG['SERVO_TARGET_DIR'], '-lgeckoservo']
+ 
+ if CONFIG['MOZ_SYSTEM_JPEG']:
+     OS_LIBS += CONFIG['MOZ_JPEG_LIBS']
+ 
+ if CONFIG['MOZ_SYSTEM_PNG']:
+     OS_LIBS += CONFIG['MOZ_PNG_LIBS']
+ 
++if CONFIG['MOZ_SYSTEM_HARFBUZZ']:
++    OS_LIBS += CONFIG['MOZ_HARFBUZZ_LIBS']
++
+ if CONFIG['MOZ_SYSTEM_HUNSPELL']:
+     OS_LIBS += CONFIG['MOZ_HUNSPELL_LIBS']
+ 
+ if CONFIG['MOZ_SYSTEM_LIBEVENT']:
+     OS_LIBS += CONFIG['MOZ_LIBEVENT_LIBS']
+ 
+ if CONFIG['MOZ_SYSTEM_LIBVPX']:
+     OS_LIBS += CONFIG['MOZ_LIBVPX_LIBS']
+