Add an option to enable prebinding for mach-o builds (bug 151087). r=cls.

config/autoconf.mk.in

@@ -71,6 +71,7 @@ EAZEL_PROFILER_LIBS=@EAZEL_PROFILER_LIBS@
 GC_LEAK_DETECTOR = @GC_LEAK_DETECTOR@
 NS_TRACE_MALLOC = @NS_TRACE_MALLOC@
 USE_ELF_DYNSTR_GC = @USE_ELF_DYNSTR_GC@
+USE_PREBINDING = @USE_PREBINDING@
 MOZ_MAIL_NEWS	= @MOZ_MAIL_NEWS@
 MOZ_CALENDAR	= @MOZ_CALENDAR@
 MOZ_PLAINTEXT_EDITOR_ONLY = @MOZ_PLAINTEXT_EDITOR_ONLY@

config/config.mk

@@ -647,6 +647,13 @@ endif
 endif
 endif
 
+ifeq ($(OS_ARCH),Darwin)
+ifdef USE_PREBINDING
+export LD_PREBIND=1
+export LD_SEG_ADDR_TABLE=$(shell cd $(topsrcdir); pwd)/config/prebind-address-table
+endif
+endif
+
 ifdef MOZ_NATIVE_MAKEDEPEND
 MKDEPEND_DIR	=
 MKDEPEND	= $(MOZ_NATIVE_MAKEDEPEND)

config/prebind-address-table

@@ -0,0 +1,9 @@
+0x01000000       @executable_path/libnspr4.dylib
+0x02000000       @executable_path/libplds4.dylib
+0x03000000       @executable_path/libplc4.dylib
+0x04000000       @executable_path/libmozjs.dylib
+0x05000000       @executable_path/libxpcom.dylib
+0x06000000       @executable_path/libssl3.dylib
+0x07000000       @executable_path/libnss3.dylib
+0x08000000       @executable_path/libsmime3.dylib
+0x09000000       @executable_path/libsoftokn3.dylib

configure.in

@@ -3619,6 +3619,14 @@ MOZ_ARG_ENABLE_BOOL(elf-dynstr-gc,
     USE_ELF_DYNSTR_GC=1,
     USE_ELF_DYNSTR_GC= )
 
+dnl ========================================================
+dnl = --enable-prebinding
+dnl ========================================================
+MOZ_ARG_ENABLE_BOOL(prebinding,
+[  --enable-prebinding     Enable prebinding (Mac OS X only)],
+    USE_PREBINDING=1,
+    USE_PREBINDING= )
+
 dnl ========================================================
 dnl = 
 dnl = Profiling and Instrumenting
@@ -4415,6 +4423,7 @@ AC_SUBST(MOZ_USER_DIR)
 
 AC_SUBST(ENABLE_STRIP)
 AC_SUBST(USE_ELF_DYNSTR_GC)
+AC_SUBST(USE_PREBINDING)
 AC_SUBST(MOZ_COMPONENTS_VERSION_SCRIPT_LDFLAGS)
 AC_SUBST(MOZ_COMPONENT_NSPR_LIBS)
 AC_SUBST(MOZ_COMPONENT_XPCOM_LIBS)