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"
     ;;