X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Fisfinite.m4;h=72dbcc64595809222a9da32aa6177586f1dc7bfb;hb=1caec4216cb4edce9d6bc330c561d721e84225cc;hp=3aeab39a6a1cc3939b9cd1a9ca5b725f85d757ce;hpb=1f8c872f267bc608644d6de67aa5fab6285a8533;p=gnulib.git

diff --git a/m4/isfinite.m4 b/m4/isfinite.m4
index 3aeab39a6..72dbcc645 100644
--- a/m4/isfinite.m4
+++ b/m4/isfinite.m4
@@ -1,5 +1,5 @@
-# isfinite.m4 serial 8
-dnl Copyright (C) 2007-2010 Free Software Foundation, Inc.
+# isfinite.m4 serial 10
+dnl Copyright (C) 2007-2011 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.
@@ -11,7 +11,8 @@ AC_DEFUN([gl_ISFINITE],
   AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
   AC_CHECK_DECLS([isfinite], , , [#include <math.h>])
   if test "$ac_cv_have_decl_isfinite" = yes; then
-    gl_CHECK_MATH_LIB([ISFINITE_LIBM], [x = isfinite (x);])
+    gl_CHECK_MATH_LIB([ISFINITE_LIBM],
+     [x = isfinite (x) + isfinite ((float) x);])
     if test "$ISFINITE_LIBM" != missing; then
       dnl Test whether isfinite() on 'long double' works.
       gl_ISFINITEL_WORKS
@@ -27,7 +28,7 @@ AC_DEFUN([gl_ISFINITE],
   if test "$ac_cv_have_decl_isfinite" != yes ||
      test "$ISFINITE_LIBM" = missing; then
     REPLACE_ISFINITE=1
-    AC_LIBOBJ([isfinite])
+    dnl No libraries are needed to link lib/isfinite.c.
     ISFINITE_LIBM=
   fi
   AC_SUBST([ISFINITE_LIBM])