gcc: Add support for building musl configuration

Most of these patches are already in gcc 6.0/master but we still need them for
older gcc, they have been tested in meta-musl for quite some time

(From OE-Core rev: 30a0cc2ef72399b84da4903e697f258f79852fc9)

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 32 insertions, 0 deletions

diff --git a/meta/recipes-devtools/gcc/gcc-5.2/0043-libstdc-musl.patch b/meta/recipes-devtools/gcc/gcc-5.2/0043-libstdc-musl.patch
new file mode 100644
index 0000000000..048e481dce
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-5.2/0043-libstdc-musl.patch
@@ -0,0 +1,32 @@
+Upstream-Status: Pending
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+
+Index: gcc-4.9-20140316/libstdc++-v3/configure.host
+===================================================================
+--- gcc-4.9-20140316.orig/libstdc++-v3/configure.host   2014-03-26 01:12:19.466008193 -0700
++++ gcc-4.9-20140316/libstdc++-v3/configure.host        2014-03-26 01:43:48.222684357 -0700
+@@ -264,14 +264,24 @@
+     os_include_dir="os/bsd/freebsd"
+     ;;
+   gnu* | linux* | kfreebsd*-gnu | knetbsd*-gnu)
++    # check for musl by target
++    case "${host_os}" in
++      *-musl*)
++        os_include_dir="os/generic"
++        ;;
++      *)
+     if [ "$uclibc" = "yes" ]; then
+       os_include_dir="os/uclibc"
+     elif [ "$bionic" = "yes" ]; then
+       os_include_dir="os/bionic"
++    elif [ "$musl" = "yes" ]; then
++      os_include_dir="os/generic"
+     else
+       os_include_dir="os/gnu-linux"
+     fi
+     ;;
++    esac
++    ;;
+   hpux*)
+     os_include_dir="os/hpux"
+     ;;