X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;ds=sidebyside;f=m4%2Ftruncf.m4;h=0b7c49ab2facf462a37bca85d74f47bbfa89769f;hb=423d3cac13c30bb0d5f85e5fac6ab1406ed1731a;hp=7de15fe2a43a229a8ed6e227b43599235792e50d;hpb=152e99575c43cc17bbb11ecd32d38418c1d68dc6;p=gnulib.git

diff --git a/m4/truncf.m4 b/m4/truncf.m4
index 7de15fe2a..0b7c49ab2 100644
--- a/m4/truncf.m4
+++ b/m4/truncf.m4
@@ -1,5 +1,5 @@
-# truncf.m4 serial 1
-dnl Copyright (C) 2007 Free Software Foundation, Inc.
+# truncf.m4 serial 3
+dnl Copyright (C) 2007, 2010 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -14,24 +14,26 @@ AC_DEFUN([gl_FUNC_TRUNCF],
   if test "$ac_cv_have_decl_truncf" = yes; then
     dnl Test whether truncf() can be used without libm.
     TRUNCF_LIBM=?
-    AC_TRY_LINK([
-       #ifndef __NO_MATH_INLINES
-       # define __NO_MATH_INLINES 1 /* for glibc */
-       #endif
-       #include <math.h>
-       float x;],
-      [x = truncf(x);],
+    AC_LINK_IFELSE(
+      [AC_LANG_PROGRAM(
+         [[#ifndef __NO_MATH_INLINES
+           # define __NO_MATH_INLINES 1 /* for glibc */
+           #endif
+           #include <math.h>
+           float x;]],
+         [[x = truncf(x);]])],
       [TRUNCF_LIBM=])
     if test "$TRUNCF_LIBM" = "?"; then
       save_LIBS="$LIBS"
       LIBS="$LIBS -lm"
-      AC_TRY_LINK([
-         #ifndef __NO_MATH_INLINES
-         # define __NO_MATH_INLINES 1 /* for glibc */
-         #endif
-         #include <math.h>
-         float x;],
-        [x = truncf(x);],
+      AC_LINK_IFELSE(
+        [AC_LANG_PROGRAM(
+           [[#ifndef __NO_MATH_INLINES
+             # define __NO_MATH_INLINES 1 /* for glibc */
+             #endif
+             #include <math.h>
+             float x;]],
+           [[x = truncf(x);]])],
         [TRUNCF_LIBM="-lm"])
       LIBS="$save_LIBS"
     fi
@@ -43,6 +45,5 @@ AC_DEFUN([gl_FUNC_TRUNCF],
     AC_LIBOBJ([truncf])
     TRUNCF_LIBM=
   fi
-  AC_SUBST([HAVE_DECL_TRUNCF])
   AC_SUBST([TRUNCF_LIBM])
 ])