--- a/gmp/configfsf.sub	2010-01-07 15:09:02.000000000 -0500
+++ b/gmp/configfsf.sub	2015-06-18 00:49:06.903526700 -0400
@@ -120,7 +120,7 @@
 # Here we must recognize all the valid KERNEL-OS combinations.
 maybe_os=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\2/'`
 case $maybe_os in
-  nto-qnx* | linux-gnu* | linux-dietlibc | linux-newlib* | linux-uclibc* | \
+  nto-qnx* | linux-gnu* | linux-dietlibc | linux-musl* | linux-newlib* | linux-uclibc* | \
   uclinux-uclibc* | uclinux-gnu* | kfreebsd*-gnu* | knetbsd*-gnu* | netbsd*-gnu* | \
   storm-chaos* | os2-emx* | rtmk-nova*)
     os=-$maybe_os