Add md5 and hmac from gnulib to libextra/gl/.

1 files changed, 91 insertions, 0 deletions

diff --git a/libextra/gl/m4/gnulib-common.m4 b/libextra/gl/m4/gnulib-common.m4
new file mode 100644
index 0000000000..34d91c728f
--- /dev/null
+++ b/libextra/gl/m4/gnulib-common.m4
@@ -0,0 +1,91 @@
+# gnulib-common.m4 serial 5
+dnl Copyright (C) 2007-2008 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.
+
+# gl_COMMON
+# is expanded unconditionally through gnulib-tool magic.
+AC_DEFUN([gl_COMMON], [
+  dnl Use AC_REQUIRE here, so that the code is expanded once only.
+  AC_REQUIRE([gl_COMMON_BODY])
+])
+AC_DEFUN([gl_COMMON_BODY], [
+  AH_VERBATIM([isoc99_inline],
+[/* Work around a bug in Apple GCC 4.0.1 build 5465: In C99 mode, it supports
+   the ISO C 99 semantics of 'extern inline' (unlike the GNU C semantics of
+   earlier versions), but does not display it by setting __GNUC_STDC_INLINE__.
+   __APPLE__ && __MACH__ test for MacOS X.
+   __APPLE_CC__ tests for the Apple compiler and its version.
+   __STDC_VERSION__ tests for the C99 mode.  */
+#if defined __APPLE__ && defined __MACH__ && __APPLE_CC__ >= 5465 && !defined __cplusplus && __STDC_VERSION__ >= 199901L && !defined __GNUC_STDC_INLINE__
+# define __GNUC_STDC_INLINE__ 1
+#endif])
+])
+
+# gl_MODULE_INDICATOR([modulename])
+# defines a C macro indicating the presence of the given module.
+AC_DEFUN([gl_MODULE_INDICATOR],
+[
+  AC_DEFINE([GNULIB_]translit([$1],[abcdefghijklmnopqrstuvwxyz./-],[ABCDEFGHIJKLMNOPQRSTUVWXYZ___]), [1],
+    [Define to 1 when using the gnulib module ]$1[.])
+])
+
+# m4_foreach_w
+# is a backport of autoconf-2.59c's m4_foreach_w.
+# Remove this macro when we can assume autoconf >= 2.60.
+m4_ifndef([m4_foreach_w],
+  [m4_define([m4_foreach_w],
+    [m4_foreach([$1], m4_split(m4_normalize([$2]), [ ]), [$3])])])
+
+# AC_PROG_MKDIR_P
+# is a backport of autoconf-2.60's AC_PROG_MKDIR_P.
+# Remove this macro when we can assume autoconf >= 2.60.
+m4_ifdef([AC_PROG_MKDIR_P], [], [
+  AC_DEFUN([AC_PROG_MKDIR_P],
+    [AC_REQUIRE([AM_PROG_MKDIR_P])dnl defined by automake
+     MKDIR_P='$(mkdir_p)'
+     AC_SUBST([MKDIR_P])])])
+
+# AC_C_RESTRICT
+# This definition overrides the AC_C_RESTRICT macro from autoconf 2.60..2.61,
+# so that mixed use of GNU C and GNU C++ and mixed use of Sun C and Sun C++
+# works.
+# This definition can be removed once autoconf >= 2.62 can be assumed.
+AC_DEFUN([AC_C_RESTRICT],
+[AC_CACHE_CHECK([for C/C++ restrict keyword], ac_cv_c_restrict,
+  [ac_cv_c_restrict=no
+   # The order here caters to the fact that C++ does not require restrict.
+   for ac_kw in __restrict __restrict__ _Restrict restrict; do
+     AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
+      [[typedef int * int_ptr;
+	int foo (int_ptr $ac_kw ip) {
+	return ip[0];
+       }]],
+      [[int s[1];
+	int * $ac_kw t = s;
+	t[0] = 0;
+	return foo(t)]])],
+      [ac_cv_c_restrict=$ac_kw])
+     test "$ac_cv_c_restrict" != no && break
+   done
+  ])
+ AH_VERBATIM([restrict],
+[/* Define to the equivalent of the C99 'restrict' keyword, or to
+   nothing if this is not supported.  Do not define if restrict is
+   supported directly.  */
+#undef restrict
+/* Work around a bug in Sun C++: it does not support _Restrict, even
+   though the corresponding Sun C compiler does, which causes
+   "#define restrict _Restrict" in the previous line.  Perhaps some future
+   version of Sun C++ will work with _Restrict; if so, it'll probably
+   define __RESTRICT, just as Sun C does.  */
+#if defined __SUNPRO_CC && !defined __RESTRICT
+# define _Restrict
+#endif])
+ case $ac_cv_c_restrict in
+   restrict) ;;
+   no) AC_DEFINE([restrict], []) ;;
+   *)  AC_DEFINE_UNQUOTED([restrict], [$ac_cv_c_restrict]) ;;
+ esac
+])