gcc-4.7: Add fix for libtool rpath problems

This avoids problems with libstdc++ having bad rpaths (/usr/lib/../.lib)
in its .la file. See the patch for more information.

(From OE-Core rev: bd27e81f1fa49e2770da9a4a65a83e9d4c3a0dd0)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 29 insertions, 0 deletions

diff --git a/meta/recipes-devtools/gcc/gcc-4.7/libtool.patch b/meta/recipes-devtools/gcc/gcc-4.7/libtool.patch
new file mode 100644
index 0000000000..9580b23d8e
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-4.7/libtool.patch
@@ -0,0 +1,29 @@
+libstdc++ from gcc-runtime gets created with -rpath=/usr/lib/../lib for qemux86-64
+when running on am x86_64 build host.
+
+This patch stops this speading to libdir in the libstdc++.la file within libtool.
+Aguably, it shouldn't be passing this into libtool in the first place but
+for now this resolves the nastiest problems this causes.
+
+func_normal_abspath would resolve an empty path to `pwd` so we need
+to filter the zero case.
+
+RP 2012/8/24
+
+Upstream-Status: Pending
+
+Index: git/ltmain.sh
+===================================================================
+--- git.orig/ltmain.sh  2012-08-24 11:45:58.597087961 +0000
++++ git/ltmain.sh       2012-08-24 12:18:37.961042581 +0000
+@@ -6359,6 +6359,10 @@
+        func_warning "ignoring multiple \`-rpath's for a libtool library"
+ 
+       install_libdir="$1"
++      if test -n "$install_libdir"; then
++       func_normal_abspath "$install_libdir"
++       install_libdir=$func_normal_abspath_result
++      fi
+ 
+       oldlibs=
+       if test -z "$rpath"; then