fix cache variable name used by FP_SEARCH_LIBS_PROTO

diff --git a/aclocal.m4 b/aclocal.m4
index 14f0275..38d0580 100644 (file)
--- a/aclocal.m4
+++ b/aclocal.m4
@@ -179,7 +179,7 @@ undefine([AC_CV_NAME_supported])dnl
 # prototype text as its second argument. It also calls AC_LANG_PROGRAM
 # instead of AC_LANG_CALL
 AC_DEFUN([FP_SEARCH_LIBS_PROTO],
-[AS_VAR_PUSHDEF([ac_Search], [ac_cv_search_$3])dnl
+[AS_VAR_PUSHDEF([ac_Search], [ac_cv_search_$1])dnl
 AC_CACHE_CHECK([for library containing $1], [ac_Search],
 [ac_func_search_save_LIBS=$LIBS
 AC_LANG_CONFTEST([AC_LANG_PROGRAM([$2], [$3])])