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authorBruno Haible <bruno@clisp.org>2010-12-25 12:06:28 +0100
committerBruno Haible <bruno@clisp.org>2010-12-25 12:06:28 +0100
commitdcfdd254dc3d43139dc4058521287a48753b7db3 (patch)
tree5862d8fb406e08c3ba58c21609a33a7712fafa66 /m4/truncl-ieee.m4
parent5fa8dede5f9d5dfa45972829942ee0b3ee726779 (diff)
downloadgnulib-dcfdd254dc3d43139dc4058521287a48753b7db3.tar.gz
truncl-ieee: Make it work on OSF/1 5.1 with cc.
* doc/posix-functions/truncl.texi: Mention the OSF/1 5.1 bug. * m4/truncl.m4 (gl_FUNC_TRUNCL): If gl_FUNC_TRUNCL_IEEE is also used, test whether truncl works according to ISO C 99 with IEC 60559. * m4/truncl-ieee.m4: New file. * modules/truncl-ieee (Files): Add it and m4/minus-zero.m4, m4/signbit.m4. (configure.ac): Invoke gl_FUNC_TRUNCL_IEEE.
Diffstat (limited to 'm4/truncl-ieee.m4')
-rw-r--r--m4/truncl-ieee.m415
1 files changed, 15 insertions, 0 deletions
diff --git a/m4/truncl-ieee.m4 b/m4/truncl-ieee.m4
new file mode 100644
index 0000000000..a5ca6cb803
--- /dev/null
+++ b/m4/truncl-ieee.m4
@@ -0,0 +1,15 @@
+# truncl-ieee.m4 serial 1
+dnl Copyright (C) 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.
+
+dnl This macro is in a separate file (not in truncl.m4 and not inlined in the
+dnl module description), so that gl_FUNC_TRUNCL can test whether 'aclocal' has
+dnl found uses of this macro.
+
+AC_DEFUN([gl_FUNC_TRUNCL_IEEE],
+[
+ m4_divert_text([INIT_PREPARE], [gl_truncl_required=ieee])
+ AC_REQUIRE([gl_FUNC_TRUNCL])
+])