# Allow building against system-wide graphite2/harfbuzz.

diff --git config/Makefile.in config/Makefile.in
index 14bfc0d..5383399 100644
--- config/Makefile.in
+++ config/Makefile.in
@@ -77,6 +77,8 @@ export:: $(export-preqs)
 		-DMOZ_NATIVE_LIBEVENT=$(MOZ_NATIVE_LIBEVENT) \
 		-DMOZ_NATIVE_LIBVPX=$(MOZ_NATIVE_LIBVPX) \
 		-DMOZ_NATIVE_ICU=$(MOZ_NATIVE_ICU) \
+		-DMOZ_NATIVE_GRAPHITE2=$(MOZ_NATIVE_GRAPHITE2) \
+		-DMOZ_NATIVE_HARFBUZZ=$(MOZ_NATIVE_HARFBUZZ) \
 		$(srcdir)/system-headers | $(PERL) $(topsrcdir)/nsprpub/config/make-system-wrappers.pl system_wrappers
 	$(INSTALL) system_wrappers $(DIST)
 
diff --git config/system-headers config/system-headers
index 18e8703..bdc5f82 100644
--- config/system-headers
+++ config/system-headers
@@ -1145,3 +1145,11 @@ unicode/utypes.h
 #endif
 libutil.h
 unwind.h
+#if MOZ_NATIVE_GRAPHITE2==1
+graphite2/Font.h
+graphite2/Segment.h
+#endif
+#if MOZ_NATIVE_HARFBUZZ==1
+harfbuzz/hb-ot.h
+harfbuzz/hb.h
+#endif
diff --git configure.in configure.in
index ac38f40..87536b7 100644
--- configure.in
+++ configure.in
@@ -8032,6 +8032,52 @@ if test "$USE_FC_FREETYPE"; then
 fi
 
 dnl ========================================================
+dnl Check for harfbuzz
+dnl ========================================================
+
+MOZ_ARG_WITH_BOOL(system-harfbuzz,
+[  --with-system-harfbuzz  Use system harfbuzz (located with pkgconfig)],
+MOZ_NATIVE_HARFBUZZ=1,
+MOZ_NATIVE_HARFBUZZ=)
+
+if test -n "$MOZ_NATIVE_HARFBUZZ"; then
+    PKG_CHECK_MODULES(MOZ_HARFBUZZ, harfbuzz >= 0.9.25)
+fi
+
+AC_SUBST(MOZ_NATIVE_HARFBUZZ)
+AC_SUBST(MOZ_HARFBUZZ_CFLAGS)
+AC_SUBST(MOZ_HARFBUZZ_LIBS)
+
+dnl ========================================================
+dnl Check for graphite2
+dnl ========================================================
+MOZ_ARG_WITH_BOOL(system-graphite2,
+[  --with-system-graphite2 Use system graphite2 (located with pkgconfig)],
+MOZ_NATIVE_GRAPHITE2=1,
+MOZ_NATIVE_GRAPHITE2=)
+
+if test -n "$MOZ_NATIVE_GRAPHITE2"; then
+    PKG_CHECK_MODULES(MOZ_GRAPHITE2, graphite2)
+
+    dnl graphite2.pc has bogus version, check manually
+    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(1,2,4)
+                     #error "Insufficient graphite2 version."
+                     #endif
+                   ], [],
+                   [AC_MSG_ERROR([--with-system-graphite2 requested but no working libgraphite2 found])])
+fi
+
+AC_SUBST(MOZ_NATIVE_GRAPHITE2)
+AC_SUBST(MOZ_GRAPHITE2_CFLAGS)
+AC_SUBST(MOZ_GRAPHITE2_LIBS)
+
+dnl ========================================================
 dnl Check for pixman and cairo
 dnl ========================================================
 
diff --git content/base/src/moz.build content/base/src/moz.build
index d4f6380..0ee55df 100644
--- content/base/src/moz.build
+++ content/base/src/moz.build
@@ -179,6 +179,9 @@ SOURCES += [
     'nsObjectLoadingContent.cpp',
 ]
 
+if CONFIG['MOZ_NATIVE_HARFBUZZ']:
+    SOURCES['nsContentUtils.cpp'].flags += [CONFIG['MOZ_HARFBUZZ_CFLAGS']]
+
 EXTRA_COMPONENTS += [
     'contentAreaDropListener.js',
     'contentAreaDropListener.manifest',
diff --git gfx/moz.build gfx/moz.build
index 519aa46..6929751 100644
--- gfx/moz.build
+++ gfx/moz.build
@@ -7,6 +7,12 @@
 if CONFIG['MOZ_TREE_CAIRO']:
     DIRS += ['cairo']
 
+if not CONFIG['MOZ_NATIVE_GRAPHITE2']:
+    DIRS += ['graphite2/src' ]
+
+if not CONFIG['MOZ_NATIVE_HARFBUZZ']:
+    DIRS += ['harfbuzz/src']
+
 DIRS += [
     '2d',
     'ycbcr',
@@ -15,8 +21,6 @@ DIRS += [
     'qcms',
     'gl',
     'layers',
-    'graphite2/src',
-    'harfbuzz/src',
     'ots/src',
     'thebes',
     'ipc',
diff --git gfx/skia/Makefile.in gfx/skia/Makefile.in
index ee0efb2..98e169d6f 100644
--- gfx/skia/Makefile.in
+++ gfx/skia/Makefile.in
@@ -15,6 +15,10 @@ ifeq (qt,$(MOZ_WIDGET_TOOLKIT))
 OS_CXXFLAGS += $(MOZ_CAIRO_CFLAGS) $(MOZ_PANGO_CFLAGS) $(CAIRO_FT_CFLAGS)
 endif
 
+ifdef MOZ_NATIVE_HARFBUZZ
+OS_CXXFLAGS += $(MOZ_HARFBUZZ_CFLAGS)
+endif
+
 include $(topsrcdir)/config/rules.mk
 
 ifeq ($(CPU_ARCH)_$(GNU_CC),arm_1)
diff --git gfx/thebes/Makefile.in gfx/thebes/Makefile.in
index 45c36ae..79d32cf 100644
--- gfx/thebes/Makefile.in
+++ gfx/thebes/Makefile.in
@@ -13,6 +13,14 @@ DEFINES := $(filter-out -DUNICODE,$(DEFINES))
 CXXFLAGS += $(MOZ_CAIRO_CFLAGS) $(TK_CFLAGS)
 CFLAGS += $(MOZ_CAIRO_CFLAGS) $(TK_CFLAGS)
 
+ifdef MOZ_NATIVE_GRAPHITE2
+CXXFLAGS += $(MOZ_GRAPHITE2_CFLAGS)
+endif
+
+ifdef MOZ_NATIVE_HARFBUZZ
+CXXFLAGS += $(MOZ_HARFBUZZ_CFLAGS)
+endif
+
 ifeq ($(MOZ_WIDGET_TOOLKIT),android)
 CXXFLAGS += $(CAIRO_FT_CFLAGS)
 endif
diff --git intl/unicharutil/util/Makefile.in intl/unicharutil/util/Makefile.in
index f6b9f7c..60863f4 100644
--- intl/unicharutil/util/Makefile.in
+++ intl/unicharutil/util/Makefile.in
@@ -21,3 +21,7 @@ ifdef _MSC_VER
 OS_COMPILE_CXXFLAGS += -Zl
 OS_COMPILE_CFLAGS += -Zl
 endif
+
+ifdef MOZ_NATIVE_HARFBUZZ
+CXXFLAGS += $(MOZ_HARFBUZZ_CFLAGS)
+endif
diff --git netwerk/dns/Makefile.in netwerk/dns/Makefile.in
index 1cacbd7..f5d72bb 100644
--- netwerk/dns/Makefile.in
+++ netwerk/dns/Makefile.in
@@ -5,6 +5,10 @@
 
 include $(topsrcdir)/config/rules.mk
 
+ifdef MOZ_NATIVE_HARFBUZZ
+CXXFLAGS += $(MOZ_HARFBUZZ_CFLAGS)
+endif
+
 # Generate the include file containing compact, static definitions
 # for effective TLD data.
 etld_data.inc: $(srcdir)/prepare_tlds.py $(srcdir)/effective_tld_names.dat
diff --git toolkit/library/libxul.mk toolkit/library/libxul.mk
index 67f0db9..d42137a 100644
--- toolkit/library/libxul.mk
+++ toolkit/library/libxul.mk
@@ -89,6 +89,14 @@ ifndef MOZ_TREE_PIXMAN
 EXTRA_DSO_LDOPTS += $(MOZ_PIXMAN_LIBS)
 endif
 
+ifdef MOZ_NATIVE_GRAPHITE2
+EXTRA_DSO_LDOPTS += $(MOZ_GRAPHITE2_LIBS)
+endif
+
+ifdef MOZ_NATIVE_HARFBUZZ
+EXTRA_DSO_LDOPTS += $(MOZ_HARFBUZZ_LIBS)
+endif
+
 ifdef MOZ_DMD
 EXTRA_DSO_LDOPTS += $(call EXPAND_LIBNAME_PATH,dmd,$(DIST)/lib)
 endif