[Bug target/69988] libgo.so: undefined reference to `__unorddf2'

[glaubitz at physik dot fu-berlin.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69988

--- Comment #10 from John Paul Adrian Glaubitz <glaubitz at physik dot fu-berlin.de> ---
I'm trying this now:

--- gcc-5-5.3.1/gcc-5.3.0/libgo/configure.ac    2015-09-17 14:46:06.000000000
+0200
+++ gcc-5-5.3.1/gcc-5.3.0/libgo/configure.ac    2016-03-09 05:23:29.407181247
+0100
@@ -573,7 +573,7 @@
 LIBS="$LIBS_hold"

 LIBS_hold="$LIBS"
-LIBS="$LIBS $MATH_LIBS"
+LIBS="$LIBS $MATH_LIBS -lc"
 AC_CHECK_FUNCS(matherr)
 LIBS="$LIBS_hold"

Let's see.