--- m4-1.4.13.orig/m4/signbit.m4	2012-09-08 02:02:34 +0600
+++ m4-1.4.13/m4/signbit.m4	2012-09-08 02:06:05 +0600
@@ -48,14 +48,14 @@
     ])
   dnl Use the compiler built-ins whenever possible, because they are more
   dnl efficient than the system library functions (if they exist).
+      AC_LIBOBJ([signbitf])
+      AC_LIBOBJ([signbitd])
+      AC_LIBOBJ([signbitl])
   if test "$gl_cv_func_signbit_gcc" = yes; then
     REPLACE_SIGNBIT_USING_GCC=1
   else
     if test "$gl_cv_func_signbit" != yes; then
       REPLACE_SIGNBIT=1
-      AC_LIBOBJ([signbitf])
-      AC_LIBOBJ([signbitd])
-      AC_LIBOBJ([signbitl])
       gl_FLOAT_SIGN_LOCATION
       gl_DOUBLE_SIGN_LOCATION
       gl_LONG_DOUBLE_SIGN_LOCATION