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authorBruno Haible <bruno@clisp.org>2003-02-14 12:52:04 +0000
committerBruno Haible <bruno@clisp.org>2009-06-23 12:09:21 +0200
commita8491dc02498f34390f6f1c326c09ca15c8208f6 (patch)
treee8a994a3fb09b4a4c9faf610422f94d4b84ab2ab /gettext-runtime/m4
parent026be56d0b36bb333f8ec6b5ff8f0c084067f856 (diff)
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Move m4/longdouble.m4 to gettext-runtime/m4/longdouble.m4.
Diffstat (limited to 'gettext-runtime/m4')
-rw-r--r--gettext-runtime/m4/longdouble.m430
1 files changed, 30 insertions, 0 deletions
diff --git a/gettext-runtime/m4/longdouble.m4 b/gettext-runtime/m4/longdouble.m4
new file mode 100644
index 0000000..056e60f
--- /dev/null
+++ b/gettext-runtime/m4/longdouble.m4
@@ -0,0 +1,30 @@
+# longdouble.m4 serial 1 (gettext-0.11.6)
+dnl Copyright (C) 2002 Free Software Foundation, Inc.
+dnl This file is free software, distributed under the terms of the GNU
+dnl General Public License. As a special exception to the GNU General
+dnl Public License, this file may be distributed as part of a program
+dnl that contains a configuration script generated by Autoconf, under
+dnl the same distribution terms as the rest of that program.
+
+dnl From Bruno Haible.
+dnl Test whether the compiler supports the 'long double' type.
+dnl Prerequisite: AC_PROG_CC
+
+AC_DEFUN([gt_TYPE_LONGDOUBLE],
+[
+ AC_CACHE_CHECK([for long double], gt_cv_c_long_double,
+ [if test "$GCC" = yes; then
+ gt_cv_c_long_double=yes
+ else
+ AC_TRY_COMPILE([
+ /* The Stardent Vistra knows sizeof(long double), but does not support it. */
+ long double foo = 0.0;
+ /* On Ultrix 4.3 cc, long double is 4 and double is 8. */
+ int array [2*(sizeof(long double) >= sizeof(double)) - 1];
+ ], ,
+ gt_cv_c_long_double=yes, gt_cv_c_long_double=no)
+ fi])
+ if test $gt_cv_c_long_double = yes; then
+ AC_DEFINE(HAVE_LONG_DOUBLE, 1, [Define if you have the 'long double' type.])
+ fi
+])