Bug 1000994 - Use SONAME to specify soname for libmozgtk & stubs. r=glandium

The current implementation of the solution outlined in bug 6244229
uses LDFLAGS in Makefile.in to specify the SONAME. This patch uses
the new SONAME option in moz.build to do the same, and removes the
LDFLAGS manipulation from Makefile.in.

widget/gtk/mozgtk/gtk2/Makefile.in

@@ -4,7 +4,6 @@
 
 include $(topsrcdir)/config/rules.mk
 
-LDFLAGS += -Wl,-soname=$(DLL_PREFIX)mozgtk$(DLL_SUFFIX)
 
 # If LDFLAGS contains -Wl,--as-needed, we need to add -Wl,--no-as-needed
 # before the gtk libraries, otherwise the linker will drop those dependencies

widget/gtk/mozgtk/gtk2/moz.build

@@ -12,4 +12,6 @@ DEFINES['GTK3_SYMBOLS'] = True
 
 LIBRARY_NAME = 'mozgtk2'
 
+SONAME = 'mozgtk'
+
 FORCE_SHARED_LIB = True

widget/gtk/mozgtk/gtk3/moz.build

@@ -12,4 +12,6 @@ DEFINES['GTK2_SYMBOLS'] = True
 
 LIBRARY_NAME = 'mozgtk'
 
+SONAME = 'mozgtk'
+
 FORCE_SHARED_LIB = True

widget/gtk/mozgtk/stub/Makefile.in

@@ -1,7 +0,0 @@
-# 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/.
-
-include $(topsrcdir)/config/rules.mk
-
-LDFLAGS += -Wl,-soname=$(DLL_PREFIX)mozgtk$(DLL_SUFFIX)

widget/gtk/mozgtk/stub/moz.build

@@ -13,4 +13,6 @@ for var in ('COMMON_SYMBOLS', 'GTK2_SYMBOLS', 'GTK3_SYMBOLS'):
 
 LIBRARY_NAME = 'mozgtk_stub'
 
+SONAME = 'mozgtk'
+
 FORCE_SHARED_LIB = True