soname versioning

From cc7b4a6c6e106efc96447bb250755e86997fe205 Mon Sep 17 00:00:00 2001
From: Tim Lunn <tim@feathertop.org>
Date: Sat, 2 Feb 2013 10:25:58 +1100
Subject: [PATCH] Correct versioning of installed shared library.

To be distro-friendly shared libraries should have a version suffix
that indicates ABI/API compatibility.

This was lifted from previous libname patches from the js185 release,
with only minor changes.
---
 js/src/Makefile.in | 42 ++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 40 insertions(+), 2 deletions(-)

diff --git a/js/src/Makefile.in b/js/src/Makefile.in
index 100f6d5..45f9a91 100644
--- a/js/src/Makefile.in
+++ b/js/src/Makefile.in
@@ -33,8 +33,15 @@ endif

 TEST_DIRS += tests

+SRCREL_VERSION      = 0.0.0
+SRCREL_ABI_VERSION  := $(word 1,$(subst ., ,$(SRCREL_VERSION)))
+
 MODULE         = js
+ifeq (,$(HOST_BIN_SUFFIX))
 LIBRARY_NAME       = mozjs-@MOZJS_MAJOR_VERSION@.@MOZJS_MINOR_VERSION@@MOZJS_ALPHA@
+else
+LIBRARY_NAME       = mozjs
+endif
 STATIC_LIBRARY_NAME = js_static
 GRE_MODULE     = 1

@@ -736,6 +743,7 @@ endif
 # - OS_LIBS includes libraries selected by the configure script.
 # - EXTRA_LIBS includes libraries selected by this Makefile.
 JS_CONFIG_LIBS=$(EXTRA_DSO_LDOPTS) $(OS_LIBS) $(EXTRA_LIBS)
+JS_CONFIG_MOZ_JS_LIBS=-L$(libdir) -l$(LIBRARY_NAME)

 # The configure script invokes this rule explicitly at configure time!
 # It's important that js-config be ready by the time we're done
@@ -760,7 +768,7 @@ JS_CONFIG_SUBSTITUTIONS=\
    -DMOZILLA_VERSION="$(MOZILLA_VERSION)" \
    -DLIBRARY_NAME="$(LIBRARY_NAME)" \
    -DJS_CONFIG_LIBS="$(JS_CONFIG_LIBS)" \
-   -DMOZ_JS_LIBS="$(MOZ_JS_LIBS)" \
+   -DMOZ_JS_LIBS="$(JS_CONFIG_MOZ_JS_LIBS)" \
    -DMOZJS_MAJOR_VERSION="$(MOZJS_MAJOR_VERSION)" \
    -DMOZJS_MINOR_VERSION="$(MOZJS_MINOR_VERSION)" \
    -DMOZJS_PATCH_VERSION="$(MOZJS_PATCH_VERSION)" \
@@ -780,7 +788,6 @@ SDK_BINARY = js-config
 $(LIBRARY_NAME).pc: js.pc.in js-config
    $(PYTHON) $(topsrcdir)/config/Preprocessor.py $(JS_CONFIG_SUBSTITUTIONS) $< > $@

-
 install:: $(INSTALLED_HEADERS)
    $(SYSINSTALL) $^ $(DESTDIR)$(includedir)/$(LIBRARY_NAME)

@@ -799,12 +806,43 @@ install:: $(EXPORTS_mozilla)
 install:: $(SCRIPTS)
    $(SYSINSTALL) $^ $(DESTDIR)$(bindir)

+ifeq (,$(HOST_BIN_SUFFIX))
+ifeq (.dylib,$(DLL_SUFFIX))
+# Mac OS X
+SHLIB_ANY_VER   := $(DESTDIR)$(libdir)/$(SHARED_LIBRARY)
+SHLIB_ABI_VER   := $(DESTDIR)$(libdir)/$(SHARED_LIBRARY:$(DLL_SUFFIX)=.$(SRCREL_ABI_VERSION)$(DLL_SUFFIX))
+SHLIB_EXACT_VER := $(DESTDIR)$(libdir)/$(SHARED_LIBRARY:$(DLL_SUFFIX)=.$(SRCREL_VERSION)$(DLL_SUFFIX))
+$(SHARED_LIBRARY): EXTRA_DSO_LDOPTS += -install_name $(SHLIB_ABI_VER)
+$(SHARED_LIBRARY): EXTRA_DSO_LDOPTS += -current_version $(SRCREL_VERSION)
+$(SHARED_LIBRARY): EXTRA_DSO_LDOPTS += -compatibility_version $(SRCREL_ABI_VERSION)
+else
+# Generic Unix / Linux
+SHLIB_ANY_VER   := $(DESTDIR)$(libdir)/$(SHARED_LIBRARY)
+SHLIB_ABI_VER   := $(DESTDIR)$(libdir)/$(SHARED_LIBRARY).$(SRCREL_ABI_VERSION)
+SHLIB_EXACT_VER := $(DESTDIR)$(libdir)/$(SHARED_LIBRARY).$(SRCREL_VERSION)
+$(SHARED_LIBRARY): EXTRA_DSO_LDOPTS += -Wl,-soname,$(notdir $(SHLIB_ABI_VER))
+endif
+endif
+
+
 install:: $(LIBRARY) $(SHARED_LIBRARY) $(IMPORT_LIBRARY)
 ifneq (,$(LIBRARY))
    $(SYSINSTALL) $(LIBRARY) $(DESTDIR)$(libdir)
+ifeq (,$(HOST_BIN_SUFFIX))
+   mv -f $(DESTDIR)$(libdir)/$(LIBRARY) $(subst $(STATIC_LIBRARY_NAME),$(LIBRARY_NAME)-$(SRCREL_ABI_VERSION),$(DESTDIR)$(libdir)/$(LIBRARY))
+endif
 endif
 ifneq (,$(SHARED_LIBRARY))
+ifeq (,$(HOST_BIN_SUFFIX))
+   @[ ! -h $(SHLIB_ANY_VER) ] || rm -f $(SHLIB_ANY_VER)
+endif
    $(SYSINSTALL) $(SHARED_LIBRARY) $(DESTDIR)$(libdir)
+ifeq (,$(HOST_BIN_SUFFIX))
+   mv -f $(SHLIB_ANY_VER) $(SHLIB_EXACT_VER)
+   @[ ! -h $(SHLIB_ABI_VER) ] || rm -f $(SHLIB_ABI_VER)
+   ln -s $(notdir $(SHLIB_EXACT_VER)) $(SHLIB_ABI_VER)
+   ln -s $(notdir $(SHLIB_ABI_VER)) $(SHLIB_ANY_VER)
+endif
 endif
 ifneq (,$(IMPORT_LIBRARY))
    $(SYSINSTALL) $(IMPORT_LIBRARY) $(DESTDIR)$(libdir)
--
1.8.0