commit a1f937422658d3c6d53853c587bc025274afac4d
parent a083613d8405fa3ad7f6bc5bbbb635d0f50799e0
Author: Evgeny Grin (Karlson2k) <k2k@drgrin.dev>
Date: Tue, 14 Apr 2026 19:27:16 +0200
Updated M4 macros
Diffstat:
2 files changed, 104 insertions(+), 19 deletions(-)
diff --git a/m4/ax_check_compile_flag.m4 b/m4/ax_check_compile_flag.m4
@@ -34,14 +34,24 @@
# and this notice are preserved. This file is offered as-is, without any
# warranty.
-#serial 6
+#serial 11
AC_DEFUN([AX_CHECK_COMPILE_FLAG],
[AC_PREREQ(2.64)dnl for _AC_LANG_PREFIX and AS_VAR_IF
AS_VAR_PUSHDEF([CACHEVAR],[ax_cv_check_[]_AC_LANG_ABBREV[]flags_$4_$1])dnl
-AC_CACHE_CHECK([whether _AC_LANG compiler accepts $1], CACHEVAR, [
+AC_CACHE_CHECK([whether the _AC_LANG compiler accepts $1], CACHEVAR, [
ax_check_save_flags=$[]_AC_LANG_PREFIX[]FLAGS
- _AC_LANG_PREFIX[]FLAGS="$[]_AC_LANG_PREFIX[]FLAGS $4 $1"
+ if test x"m4_case(_AC_LANG,
+ [C], [$GCC],
+ [C++], [$GXX],
+ [Fortran], [$GFC],
+ [Fortran 77], [$G77],
+ [Objective C], [$GOBJC],
+ [Objective C++], [$GOBJCXX],
+ [no])" = xyes ; then
+ add_gnu_werror="-Werror"
+ fi
+ _AC_LANG_PREFIX[]FLAGS="$[]_AC_LANG_PREFIX[]FLAGS $4 $1 $add_gnu_werror"
AC_COMPILE_IFELSE([m4_default([$5],[AC_LANG_PROGRAM()])],
[AS_VAR_SET(CACHEVAR,[yes])],
[AS_VAR_SET(CACHEVAR,[no])])
diff --git a/m4/pkg.m4 b/m4/pkg.m4
@@ -1,5 +1,5 @@
-# pkg.m4 - Macros to locate and utilise pkg-config. -*- Autoconf -*-
-# serial 12 (pkg-config-0.29.2)
+# pkg.m4 - Macros to locate and use pkg-config. -*- Autoconf -*-
+# serial 13 (pkgconf)
dnl Copyright © 2004 Scott James Remnant <scott@netsplit.com>.
dnl Copyright © 2012-2015 Dan Nicholson <dbn.lists@gmail.com>
@@ -15,9 +15,7 @@ dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
dnl General Public License for more details.
dnl
dnl You should have received a copy of the GNU General Public License
-dnl along with this program; if not, write to the Free Software
-dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
-dnl 02111-1307, USA.
+dnl along with this program; if not, see <https://www.gnu.org/licenses/>.
dnl
dnl As a special exception to the GNU General Public License, if you
dnl distribute this file as part of a program that contains a
@@ -46,8 +44,8 @@ m4_if(m4_version_compare(PKG_MACROS_VERSION, [$1]), -1,
[m4_fatal([pkg.m4 version $1 or higher is required but ]PKG_MACROS_VERSION[ found])])
])dnl PKG_PREREQ
-dnl PKG_PROG_PKG_CONFIG([MIN-VERSION])
-dnl ----------------------------------
+dnl PKG_PROG_PKG_CONFIG([MIN-VERSION], [ACTION-IF-NOT-FOUND])
+dnl ---------------------------------------------------------
dnl Since: 0.16
dnl
dnl Search for the pkg-config tool and set the PKG_CONFIG variable to
@@ -55,6 +53,12 @@ dnl first found in the path. Checks that the version of pkg-config found
dnl is at least MIN-VERSION. If MIN-VERSION is not specified, 0.9.0 is
dnl used since that's the first version where most current features of
dnl pkg-config existed.
+dnl
+dnl If pkg-config is not found or older than specified, it will result
+dnl in an empty PKG_CONFIG variable. To avoid widespread issues with
+dnl scripts not checking it, ACTION-IF-NOT-FOUND defaults to aborting.
+dnl You can specify [PKG_CONFIG=false] as an action instead, which would
+dnl result in pkg-config tests failing, but no bogus error messages.
AC_DEFUN([PKG_PROG_PKG_CONFIG],
[m4_pattern_forbid([^_?PKG_[A-Z_]+$])
m4_pattern_allow([^PKG_CONFIG(_(PATH|LIBDIR|SYSROOT_DIR|ALLOW_SYSTEM_(CFLAGS|LIBS)))?$])
@@ -75,6 +79,9 @@ if test -n "$PKG_CONFIG"; then
AC_MSG_RESULT([no])
PKG_CONFIG=""
fi
+fi
+if test -z "$PKG_CONFIG"; then
+ m4_default([$2], [AC_MSG_ERROR([pkg-config not found])])
fi[]dnl
])dnl PKG_PROG_PKG_CONFIG
@@ -155,14 +162,14 @@ if test $pkg_failed = yes; then
AC_MSG_RESULT([no])
_PKG_SHORT_ERRORS_SUPPORTED
if test $_pkg_short_errors_supported = yes; then
- $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "$2" 2>&1`
+ $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "$2" 2>&1`
else
- $1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "$2" 2>&1`
+ $1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "$2" 2>&1`
fi
- # Put the nasty error message in config.log where it belongs
- echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD
+ # Put the nasty error message in config.log where it belongs
+ echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD
- m4_default([$4], [AC_MSG_ERROR(
+ m4_default([$4], [AC_MSG_ERROR(
[Package requirements ($2) were not met:
$$1_PKG_ERRORS
@@ -174,7 +181,7 @@ _PKG_TEXT])[]dnl
])
elif test $pkg_failed = untried; then
AC_MSG_RESULT([no])
- m4_default([$4], [AC_MSG_FAILURE(
+ m4_default([$4], [AC_MSG_FAILURE(
[The pkg-config script could not be found or is too old. Make sure it
is in your PATH or set the PKG_CONFIG environment variable to the full
path to pkg-config.
@@ -184,10 +191,10 @@ _PKG_TEXT
To get pkg-config, see <http://pkg-config.freedesktop.org/>.])[]dnl
])
else
- $1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS
- $1[]_LIBS=$pkg_cv_[]$1[]_LIBS
+ $1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS
+ $1[]_LIBS=$pkg_cv_[]$1[]_LIBS
AC_MSG_RESULT([yes])
- $3
+ $3
fi[]dnl
])dnl PKG_CHECK_MODULES
@@ -273,3 +280,71 @@ AS_VAR_COPY([$1], [pkg_cv_][$1])
AS_VAR_IF([$1], [""], [$5], [$4])dnl
])dnl PKG_CHECK_VAR
+
+dnl PKG_WITH_MODULES(VARIABLE-PREFIX, MODULES,
+dnl [ACTION-IF-FOUND],[ACTION-IF-NOT-FOUND],
+dnl [DESCRIPTION], [DEFAULT])
+dnl ------------------------------------------
+dnl
+dnl Prepare a "--with-" configure option using the lowercase
+dnl [VARIABLE-PREFIX] name, merging the behaviour of AC_ARG_WITH and
+dnl PKG_CHECK_MODULES in a single macro.
+AC_DEFUN([PKG_WITH_MODULES],
+[
+m4_pushdef([with_arg], m4_tolower([$1]))
+
+m4_pushdef([description],
+ [m4_default([$5], [build with ]with_arg[ support])])
+
+m4_pushdef([def_arg], [m4_default([$6], [auto])])
+m4_pushdef([def_action_if_found], [AS_TR_SH([with_]with_arg)=yes])
+m4_pushdef([def_action_if_not_found], [AS_TR_SH([with_]with_arg)=no])
+
+m4_case(def_arg,
+ [yes],[m4_pushdef([with_without], [--without-]with_arg)],
+ [m4_pushdef([with_without],[--with-]with_arg)])
+
+AC_ARG_WITH(with_arg,
+ AS_HELP_STRING(with_without, description[ @<:@default=]def_arg[@:>@]),,
+ [AS_TR_SH([with_]with_arg)=def_arg])
+
+AS_CASE([$AS_TR_SH([with_]with_arg)],
+ [yes],[PKG_CHECK_MODULES([$1],[$2],$3,$4)],
+ [auto],[PKG_CHECK_MODULES([$1],[$2],
+ [m4_n([def_action_if_found]) $3],
+ [m4_n([def_action_if_not_found]) $4])])
+
+m4_popdef([with_arg])
+m4_popdef([description])
+m4_popdef([def_arg])
+
+])dnl PKG_WITH_MODULES
+
+dnl PKG_HAVE_WITH_MODULES(VARIABLE-PREFIX, MODULES,
+dnl [DESCRIPTION], [DEFAULT])
+dnl -----------------------------------------------
+dnl
+dnl Convenience macro to trigger AM_CONDITIONAL after PKG_WITH_MODULES
+dnl check._[VARIABLE-PREFIX] is exported as make variable.
+AC_DEFUN([PKG_HAVE_WITH_MODULES],
+[
+PKG_WITH_MODULES([$1],[$2],,,[$3],[$4])
+
+AM_CONDITIONAL([HAVE_][$1],
+ [test "$AS_TR_SH([with_]m4_tolower([$1]))" = "yes"])
+])dnl PKG_HAVE_WITH_MODULES
+
+dnl PKG_HAVE_DEFINE_WITH_MODULES(VARIABLE-PREFIX, MODULES,
+dnl [DESCRIPTION], [DEFAULT])
+dnl ------------------------------------------------------
+dnl
+dnl Convenience macro to run AM_CONDITIONAL and AC_DEFINE after
+dnl PKG_WITH_MODULES check. HAVE_[VARIABLE-PREFIX] is exported as make
+dnl and preprocessor variable.
+AC_DEFUN([PKG_HAVE_DEFINE_WITH_MODULES],
+[
+PKG_HAVE_WITH_MODULES([$1],[$2],[$3],[$4])
+
+AS_IF([test "$AS_TR_SH([with_]m4_tolower([$1]))" = "yes"],
+ [AC_DEFINE([HAVE_][$1], 1, [Enable ]m4_tolower([$1])[ support])])
+])dnl PKG_HAVE_DEFINE_WITH_MODULES
