Add a --enable-low-fat option to reduce the .dynsym bloating in components.

build/unix/gnu-ld-scripts/components-version-script

@@ -0,0 +1,8 @@
+EXPORTED {
+   global:
+		NSGetFactory;
+		NSGetModule;
+		NSRegisterSelf;
+		NSUnregisterSelf;
+   local: *;
+};

config/autoconf.mk.in

@@ -54,12 +54,19 @@ NO_SHARED_LIB	= @NO_SHARED_LIB@
 NO_NETSCAPE_SHARED = @NO_SHARED_LIB@
 NO_STATIC_LIB	= @NO_STATIC_LIB@
 NO_NETSCAPE_STATIC = @NO_STATIC_LIB@
-MOZ_STRIP_NOT_EXPORTED = @MOZ_STRIP_NOT_EXPORTED@
 ENABLE_TESTS	= @ENABLE_TESTS@
 ENABLE_PICS     = @ENABLE_PICS@
 NO_UNIX_LDAP	= @NO_UNIX_LDAP@
 BUILD_IDLC = @BUILD_IDLC@
 
+MOZ_STRIP_NOT_EXPORTED = @MOZ_STRIP_NOT_EXPORTED@
+
+MOZ_LOW_FAT = @MOZ_LOW_FAT@
+
+ifdef MOZ_LOW_FAT
+MOZ_COMPONENTS_LOW_FAT_LDFLAGS = -Wl,--version-script,$(topsrcdir)/build/unix/gnu-ld-scripts/components-version-script
+endif
+
 ClientWallet=@ClientWallet@
 CookieManagement=@CookieManagement@
 SingleSignon=@SingleSignon@

config/rules.mk

@@ -282,6 +282,12 @@ ifdef CPPSRCS
 CPP_PROG_LINK		= 1
 endif
 
+ifdef IS_COMPONENT
+ifdef MOZ_LOW_FAT
+EXTRA_DSO_LDOPTS += $(MOZ_COMPONENTS_LOW_FAT_LDFLAGS)
+endif # MOZ_LOW_FAT
+endif # IS_COMPONENT
+
 #
 # BeOS specific section: link against dependent shared libs
 #

configure.in

@@ -2476,6 +2476,21 @@ MOZ_ARG_ENABLE_BOOL(strip-not-exported,
 
 dnl ========================================================
 
+dnl ========================================================
+dnl =
+dnl = --enable-low-fat
+dnl = 
+dnl = Take out unneeded symbols from the .dynsym of .so files
+dnl = 
+dnl ========================================================
+MOZ_LOW_FAT=
+
+MOZ_ARG_ENABLE_BOOL(low-fat,
+[  --enable-low-fat       Take out unneeded symbols from the .dynsym of .so files ],
+  [MOZ_LOW_FAT=1 ])
+
+dnl ========================================================
+
 dnl ========================================================
 dnl =
 dnl = --with-debug-modules=module1,module1,etc
@@ -2794,7 +2809,6 @@ AC_SUBST(MOZ_EDITOR)
 AC_SUBST(MOZ_BRPROF)
 
 AC_SUBST(UNIX_CRASH_ON_ASSERT)
-AC_SUBST(MOZ_STRIP_NOT_EXPORTED)
 AC_SUBST(NO_UNIX_ASYNC_DNS)
 AC_SUBST(NO_SHARED_LIB)
 AC_SUBST(NO_STATIC_LIB)
@@ -2807,6 +2821,9 @@ AC_SUBST(NO_UNIX_LDAP)
 AC_SUBST(BUILD_IDLC)
 AC_SUBST(MOZ_ENABLE_GTK_MOZILLA)
 
+AC_SUBST(MOZ_LOW_FAT)
+AC_SUBST(MOZ_STRIP_NOT_EXPORTED)
+
 AC_SUBST(MOZ_GLE)
 
 AC_SUBST(MOZ_BUILD_ROOT)