Building cross-compiler with i686-cc built against musl breaks because elf2flt
inserts "-lc" into the link line before -l libiberty.c, resulting in libc's
weak symbols getting resolved and conflicting with libiberty's gratuitous
redefines.

The reason elf2flt inserts -lc is it doesn't trust libc to define "malloc".
(No really.) The fix is to rip that test out entirely.

diff -ruN elf2flt/configure elf2flt.bak/configure
--- elf2flt/configure	2015-01-04 02:14:55.000000000 -0600
+++ elf2flt.bak/configure	2016-01-04 11:33:40.331559582 -0600
@@ -3971,46 +3971,6 @@
 		;;
 esac
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for malloc in -lc" >&5
-$as_echo_n "checking for malloc in -lc... " >&6; }
-if ${ac_cv_lib_c_malloc+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_check_lib_save_LIBS=$LIBS
-LIBS="-lc  $LIBS"
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-/* Override any GCC internal prototype to avoid an error.
-   Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-#ifdef __cplusplus
-extern "C"
-#endif
-char malloc ();
-int
-main ()
-{
-return malloc ();
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  ac_cv_lib_c_malloc=yes
-else
-  ac_cv_lib_c_malloc=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_c_malloc" >&5
-$as_echo "$ac_cv_lib_c_malloc" >&6; }
-if test "x$ac_cv_lib_c_malloc" = xyes; then :
-  LIBS="-lc $LIBS"
-fi
-
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -ldl" >&5
 $as_echo_n "checking for dlopen in -ldl... " >&6; }
 if ${ac_cv_lib_dl_dlopen+:} false; then :