X-Git-Url: https://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Fatanl.m4;h=46e08735cbf391e2b48b0ad045a296d76723c69d;hb=da8054d48dc22e1c051db54049e005d51a006e69;hp=330ad773f5dbd5eab0bbfe9d7f1b4d99e05f31b7;hpb=2394a603e7586e671226478e5b15d924c3841f42;p=gnulib.git

diff --git a/m4/atanl.m4 b/m4/atanl.m4
index 330ad773f..46e08735c 100644
--- a/m4/atanl.m4
+++ b/m4/atanl.m4
@@ -1,5 +1,5 @@
-# atanl.m4 serial 6
-dnl Copyright (C) 2010-2011 Free Software Foundation, Inc.
+# atanl.m4 serial 8
+dnl Copyright (C) 2010-2013 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.
@@ -22,8 +22,10 @@ AC_DEFUN([gl_FUNC_ATANL],
              # define __NO_MATH_INLINES 1 /* for glibc */
              #endif
              #include <math.h>
+             long double (*funcptr) (long double) = atanl;
              long double x;]],
-           [[return atanl (x) > 1;]])],
+           [[return funcptr (x) > 1
+                    || atanl (x) > 1;]])],
         [gl_cv_func_atanl_no_libm=yes],
         [gl_cv_func_atanl_no_libm=no])
     ])
@@ -39,8 +41,10 @@ AC_DEFUN([gl_FUNC_ATANL],
                # define __NO_MATH_INLINES 1 /* for glibc */
                #endif
                #include <math.h>
+               long double (*funcptr) (long double) = atanl;
                long double x;]],
-             [[return atanl (x) > 1;]])],
+             [[return funcptr (x) > 1
+                      || atanl (x) > 1;]])],
           [gl_cv_func_atanl_in_libm=yes],
           [gl_cv_func_atanl_in_libm=no])
         LIBS="$save_LIBS"
@@ -52,7 +56,7 @@ AC_DEFUN([gl_FUNC_ATANL],
   if test $gl_cv_func_atanl_no_libm = yes \
      || test $gl_cv_func_atanl_in_libm = yes; then
     dnl Also check whether it's declared.
-    dnl MacOS X 10.3 has atanl() in libc but doesn't declare it in <math.h>.
+    dnl Mac OS X 10.3 has atanl() in libc but doesn't declare it in <math.h>.
     AC_CHECK_DECL([atanl], , [HAVE_DECL_ATANL=0], [[#include <math.h>]])
   else
     HAVE_DECL_ATANL=0