-# gnulib-common.m4 serial 38
+# gnulib-common.m4 serial 41
dnl Copyright (C) 2007-2018 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.
+AC_PREREQ([2.62])
+
# gl_COMMON
# is expanded unconditionally through gnulib-tool magic.
AC_DEFUN([gl_COMMON], [
AC_DEFUN([gl_COMMON_BODY], [
AH_VERBATIM([_Noreturn],
[/* The _Noreturn keyword of C11. */
-#if ! (defined _Noreturn \
- || (defined __STDC_VERSION__ && 201112 <= __STDC_VERSION__))
-# if (3 <= __GNUC__ || (__GNUC__ == 2 && 8 <= __GNUC_MINOR__) \
- || 0x5110 <= __SUNPRO_C)
+#ifndef _Noreturn
+# if 201103 <= (defined __cplusplus ? __cplusplus : 0)
+# define _Noreturn [[noreturn]]
+# elif (201112 <= (defined __STDC_VERSION__ ? __STDC_VERSION__ : 0) \
+ || 4 < __GNUC__ + (7 <= __GNUC_MINOR__))
+ /* _Noreturn works as-is. */
+# elif 2 < __GNUC__ + (8 <= __GNUC_MINOR__) || 0x5110 <= __SUNPRO_C
# define _Noreturn __attribute__ ((__noreturn__))
-# elif defined _MSC_VER && 1200 <= _MSC_VER
+# elif 1200 <= (defined _MSC_VER ? _MSC_VER : 0)
# define _Noreturn __declspec (noreturn)
# else
# define _Noreturn
#else
# define _GL_ATTRIBUTE_CONST /* empty */
#endif
+
+/* The __malloc__ attribute was added in gcc 3. */
+#if 3 <= __GNUC__
+# define _GL_ATTRIBUTE_MALLOC __attribute__ ((__malloc__))
+#else
+# define _GL_ATTRIBUTE_MALLOC /* empty */
+#endif
])
dnl Preparation for running test programs:
dnl Tell glibc to write diagnostics from -D_FORTIFY_SOURCE=2 to stderr, not
AC_SUBST([HAVE_FEATURES_H])
])
-# 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])])])
-
# AS_VAR_IF(VAR, VALUE, [IF-MATCH], [IF-NOT-MATCH])
# ----------------------------------------------------
# Backport of autoconf-2.63b's macro.
# Modifies the value of the shell variable CC in an attempt to make $CC
# understand ISO C99 source code.
# This is like AC_PROG_CC_C99, except that
-# - AC_PROG_CC_C99 did not exist in Autoconf versions < 2.60,
# - AC_PROG_CC_C99 does not mix well with AC_PROG_CC_STDC
# <https://lists.gnu.org/r/bug-gnulib/2011-09/msg00367.html>,
# but many more packages use AC_PROG_CC_STDC than AC_PROG_CC_C99
AC_SUBST([RANLIB])
])
-# AC_PROG_MKDIR_P
-# is a backport of autoconf-2.60's AC_PROG_MKDIR_P, with a fix
-# for interoperability with automake-1.9.6 from autoconf-2.62.
-# Remove this macro when we can assume autoconf >= 2.62 or
-# autoconf >= 2.60 && automake >= 1.10.
-# AC_AUTOCONF_VERSION was introduced in 2.62, so use that as the witness.
-m4_ifndef([AC_AUTOCONF_VERSION],[
-m4_ifdef([AC_PROG_MKDIR_P], [
- dnl For automake-1.9.6 && autoconf < 2.62: Ensure MKDIR_P is AC_SUBSTed.
- m4_define([AC_PROG_MKDIR_P],
- m4_defn([AC_PROG_MKDIR_P])[
- AC_SUBST([MKDIR_P])])], [
- dnl For autoconf < 2.60: Backport of AC_PROG_MKDIR_P.
- AC_DEFUN_ONCE([AC_PROG_MKDIR_P],
- [AC_REQUIRE([AM_PROG_MKDIR_P])dnl defined by automake
- MKDIR_P='$(mkdir_p)'
- AC_SUBST([MKDIR_P])])])
-])
-
# AC_C_RESTRICT
# This definition is copied from post-2.69 Autoconf and overrides the
# AC_C_RESTRICT macro from autoconf 2.60..2.69. It can be removed
for ac_kw in __restrict __restrict__ _Restrict restrict; do
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM(
- [[typedef int *int_ptr;
- int foo (int_ptr $ac_kw ip) { return ip[0]; }
- int bar (int [$ac_kw]); /* Catch GCC bug 14050. */
- int bar (int ip[$ac_kw]) { return ip[0]; }
- ]],
- [[int s[1];
- int *$ac_kw t = s;
- t[0] = 0;
- return foo (t) + bar (t);
- ]])],
+ [[typedef int *int_ptr;
+ int foo (int_ptr $ac_kw ip) { return ip[0]; }
+ int bar (int [$ac_kw]); /* Catch GCC bug 14050. */
+ int bar (int ip[$ac_kw]) { return ip[0]; }
+ ]],
+ [[int s[1];
+ int *$ac_kw t = s;
+ t[0] = 0;
+ return foo (t) + bar (t);
+ ]])],
[ac_cv_c_restrict=$ac_kw])
test "$ac_cv_c_restrict" != no && break
done
# AS_VAR_COPY was added in autoconf 2.63b
m4_define_default([AS_VAR_COPY],
[AS_LITERAL_IF([$1[]$2], [$1=$$2], [eval $1=\$$2])])
-
-# AC_PROG_SED was added in autoconf 2.59b
-m4_ifndef([AC_PROG_SED],
-[AC_DEFUN([AC_PROG_SED],
-[AC_CACHE_CHECK([for a sed that does not truncate output], ac_cv_path_SED,
- [dnl ac_script should not contain more than 99 commands (for HP-UX sed),
- dnl but more than about 7000 bytes, to catch a limit in Solaris 8 /usr/ucb/sed.
- ac_script=s/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb/
- for ac_i in 1 2 3 4 5 6 7; do
- ac_script="$ac_script$as_nl$ac_script"
- done
- echo "$ac_script" 2>/dev/null | sed 99q >conftest.sed
- AS_UNSET([ac_script])
- if test -z "$SED"; then
- ac_path_SED_found=false
- _AS_PATH_WALK([], [
- for ac_prog in sed gsed; do
- for ac_exec_ext in '' $ac_executable_extensions; do
- ac_path_SED="$as_dir/$ac_prog$ac_exec_ext"
- AS_EXECUTABLE_P(["$ac_path_SED"]) || continue
- case `"$ac_path_SED" --version 2>&1` in
- *GNU*) ac_cv_path_SED=$ac_path_SED ac_path_SED_found=:;;
- *)
- ac_count=0
- _AS_ECHO_N([0123456789]) >conftest.in
- while :
- do
- cat conftest.in conftest.in >conftest.tmp
- mv conftest.tmp conftest.in
- cp conftest.in conftest.nl
- echo >> conftest.nl
- "$ac_path_SED" -f conftest.sed <conftest.nl >conftest.out 2>/dev/null || break
- diff conftest.out conftest.nl >/dev/null 2>&1 || break
- ac_count=`expr $ac_count + 1`
- if test $ac_count -gt ${ac_path_SED_max-0}; then
- # Best so far, but keep looking for better
- ac_cv_path_SED=$ac_path_SED
- ac_path_SED_max=$ac_count
- fi
- test $ac_count -gt 10 && break
- done
- rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
- esac
- $ac_path_SED_found && break 3
- done
- done])
- if test -z "$ac_cv_path_SED"; then
- AC_ERROR([no acceptable sed could be found in \$PATH])
- fi
- else
- ac_cv_path_SED=$SED
- fi
- ])
- SED="$ac_cv_path_SED"
- AC_SUBST([SED])dnl
- rm -f conftest.sed
-])
-])
projects / debian / gzip / blobdiff