Move autoconf macros that come from gettext from m4 to m4/gettext to make it

easier to update them when necessary (they're out of date at present--the
versions here are from 0.14.5, but 0.16.1 is current).

--HG--
rename : m4/codeset.m4 => m4/gettext/codeset.m4
rename : m4/gettext.m4 => m4/gettext/gettext.m4
rename : m4/glibc2.m4 => m4/gettext/glibc2.m4
rename : m4/glibc21.m4 => m4/gettext/glibc21.m4
rename : m4/iconv.m4 => m4/gettext/iconv.m4
rename : m4/intdiv0.m4 => m4/gettext/intdiv0.m4
rename : m4/intmax.m4 => m4/gettext/intmax.m4
rename : m4/inttypes-pri.m4 => m4/gettext/inttypes-pri.m4
rename : m4/inttypes.m4 => m4/gettext/inttypes.m4
rename : m4/inttypes_h.m4 => m4/gettext/inttypes_h.m4
rename : m4/isc-posix.m4 => m4/gettext/isc-posix.m4
rename : m4/lcmessage.m4 => m4/gettext/lcmessage.m4
rename : m4/lib-ld.m4 => m4/gettext/lib-ld.m4
rename : m4/lib-link.m4 => m4/gettext/lib-link.m4
rename : m4/lib-prefix.m4 => m4/gettext/lib-prefix.m4
rename : m4/longdouble.m4 => m4/gettext/longdouble.m4
rename : m4/longlong.m4 => m4/gettext/longlong.m4
rename : m4/nls.m4 => m4/gettext/nls.m4
rename : m4/po.m4 => m4/gettext/po.m4
rename : m4/printf-posix.m4 => m4/gettext/printf-posix.m4
rename : m4/progtest.m4 => m4/gettext/progtest.m4
rename : m4/signed.m4 => m4/gettext/signed.m4
rename : m4/size_max.m4 => m4/gettext/size_max.m4
rename : m4/stdint_h.m4 => m4/gettext/stdint_h.m4
rename : m4/uintmax_t.m4 => m4/gettext/uintmax_t.m4
rename : m4/ulonglong.m4 => m4/gettext/ulonglong.m4
rename : m4/wchar_t.m4 => m4/gettext/wchar_t.m4
rename : m4/wint_t.m4 => m4/gettext/wint_t.m4
rename : m4/xsize.m4 => m4/gettext/xsize.m4

1 files changed, 70 insertions, 0 deletions

diff --git a/m4/gettext/intdiv0.m4 b/m4/gettext/intdiv0.m4
new file mode 100644
index 000000000..b8d78176a
--- /dev/null
+++ b/m4/gettext/intdiv0.m4
@@ -0,0 +1,70 @@
+# intdiv0.m4 serial 1 (gettext-0.11.3)
+dnl Copyright (C) 2002 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 From Bruno Haible.
+
+AC_DEFUN([gt_INTDIV0],
+[
+  AC_REQUIRE([AC_PROG_CC])dnl
+  AC_REQUIRE([AC_CANONICAL_HOST])dnl
+
+  AC_CACHE_CHECK([whether integer division by zero raises SIGFPE],
+    gt_cv_int_divbyzero_sigfpe,
+    [
+      AC_TRY_RUN([
+#include <stdlib.h>
+#include <signal.h>
+
+static void
+#ifdef __cplusplus
+sigfpe_handler (int sig)
+#else
+sigfpe_handler (sig) int sig;
+#endif
+{
+  /* Exit with code 0 if SIGFPE, with code 1 if any other signal.  */
+  exit (sig != SIGFPE);
+}
+
+int x = 1;
+int y = 0;
+int z;
+int nan;
+
+int main ()
+{
+  signal (SIGFPE, sigfpe_handler);
+/* IRIX and AIX (when "xlc -qcheck" is used) yield signal SIGTRAP.  */
+#if (defined (__sgi) || defined (_AIX)) && defined (SIGTRAP)
+  signal (SIGTRAP, sigfpe_handler);
+#endif
+/* Linux/SPARC yields signal SIGILL.  */
+#if defined (__sparc__) && defined (__linux__)
+  signal (SIGILL, sigfpe_handler);
+#endif
+
+  z = x / y;
+  nan = y / y;
+  exit (1);
+}
+], gt_cv_int_divbyzero_sigfpe=yes, gt_cv_int_divbyzero_sigfpe=no,
+        [
+          # Guess based on the CPU.
+          case "$host_cpu" in
+            alpha* | i[34567]86 | m68k | s390*)
+              gt_cv_int_divbyzero_sigfpe="guessing yes";;
+            *)
+              gt_cv_int_divbyzero_sigfpe="guessing no";;
+          esac
+        ])
+    ])
+  case "$gt_cv_int_divbyzero_sigfpe" in
+    *yes) value=1;;
+    *) value=0;;
+  esac
+  AC_DEFINE_UNQUOTED(INTDIV0_RAISES_SIGFPE, $value,
+    [Define if integer division by zero raises signal SIGFPE.])
+])