X-Git-Url: https://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Fsqrtl.m4;h=0bc6ecd0d8690f8c1fe94f0deba502fb5e778666;hb=6e5f53c09490a510344a65d26f5e3989a048fcdf;hp=bc25861712e340e9b8e504419c663975d8e71046;hpb=c5b0ffbc89d44dbe044b711e393b2e4f83f696be;p=gnulib.git

diff --git a/m4/sqrtl.m4 b/m4/sqrtl.m4
index bc2586171..0bc6ecd0d 100644
--- a/m4/sqrtl.m4
+++ b/m4/sqrtl.m4
@@ -1,5 +1,5 @@
-# sqrtl.m4 serial 8
-dnl Copyright (C) 2010-2012 Free Software Foundation, Inc.
+# sqrtl.m4 serial 9
+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.
@@ -56,7 +56,7 @@ AC_DEFUN([gl_FUNC_SQRTL],
   if test $gl_cv_func_sqrtl_no_libm = yes \
      || test $gl_cv_func_sqrtl_in_libm = yes; then
     dnl Also check whether it's declared.
-    dnl MacOS X 10.3 has sqrtl() in libc but doesn't declare it in <math.h>.
+    dnl Mac OS X 10.3 has sqrtl() in libc but doesn't declare it in <math.h>.
     AC_CHECK_DECL([sqrtl], , [HAVE_DECL_SQRTL=0], [[#include <math.h>]])
 
     save_LIBS="$LIBS"
@@ -119,11 +119,13 @@ AC_DEFUN([gl_FUNC_SQRTL_WORKS],
         [AC_LANG_SOURCE([[
 #include <float.h>
 #include <math.h>
+#ifndef sqrtl /* for AIX */
 extern
 #ifdef __cplusplus
 "C"
 #endif
 long double sqrtl (long double);
+#endif
 static long double
 my_ldexpl (long double x, int d)
 {