diff options
Diffstat (limited to 'm4')
| -rw-r--r-- | m4/ax_pthread.m4 | 485 | ||||
| -rw-r--r-- | m4/pkg.m4 | 159 |
2 files changed, 0 insertions, 644 deletions
diff --git a/m4/ax_pthread.m4 b/m4/ax_pthread.m4 deleted file mode 100644 index 4c4051e..0000000 --- a/m4/ax_pthread.m4 +++ /dev/null @@ -1,485 +0,0 @@ -# =========================================================================== -# http://www.gnu.org/software/autoconf-archive/ax_pthread.html -# =========================================================================== -# -# SYNOPSIS -# -# AX_PTHREAD([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]]) -# -# DESCRIPTION -# -# This macro figures out how to build C programs using POSIX threads. It -# sets the PTHREAD_LIBS output variable to the threads library and linker -# flags, and the PTHREAD_CFLAGS output variable to any special C compiler -# flags that are needed. (The user can also force certain compiler -# flags/libs to be tested by setting these environment variables.) -# -# Also sets PTHREAD_CC to any special C compiler that is needed for -# multi-threaded programs (defaults to the value of CC otherwise). (This -# is necessary on AIX to use the special cc_r compiler alias.) -# -# NOTE: You are assumed to not only compile your program with these flags, -# but also to link with them as well. For example, you might link with -# $PTHREAD_CC $CFLAGS $PTHREAD_CFLAGS $LDFLAGS ... $PTHREAD_LIBS $LIBS -# -# If you are only building threaded programs, you may wish to use these -# variables in your default LIBS, CFLAGS, and CC: -# -# LIBS="$PTHREAD_LIBS $LIBS" -# CFLAGS="$CFLAGS $PTHREAD_CFLAGS" -# CC="$PTHREAD_CC" -# -# In addition, if the PTHREAD_CREATE_JOINABLE thread-attribute constant -# has a nonstandard name, this macro defines PTHREAD_CREATE_JOINABLE to -# that name (e.g. PTHREAD_CREATE_UNDETACHED on AIX). -# -# Also HAVE_PTHREAD_PRIO_INHERIT is defined if pthread is found and the -# PTHREAD_PRIO_INHERIT symbol is defined when compiling with -# PTHREAD_CFLAGS. -# -# ACTION-IF-FOUND is a list of shell commands to run if a threads library -# is found, and ACTION-IF-NOT-FOUND is a list of commands to run it if it -# is not found. If ACTION-IF-FOUND is not specified, the default action -# will define HAVE_PTHREAD. -# -# Please let the authors know if this macro fails on any platform, or if -# you have any other suggestions or comments. This macro was based on work -# by SGJ on autoconf scripts for FFTW (http://www.fftw.org/) (with help -# from M. Frigo), as well as ac_pthread and hb_pthread macros posted by -# Alejandro Forero Cuervo to the autoconf macro repository. We are also -# grateful for the helpful feedback of numerous users. -# -# Updated for Autoconf 2.68 by Daniel Richard G. -# -# LICENSE -# -# Copyright (c) 2008 Steven G. Johnson <stevenj@alum.mit.edu> -# Copyright (c) 2011 Daniel Richard G. <skunk@iSKUNK.ORG> -# -# This program is free software: you can redistribute it and/or modify it -# under the terms of the GNU General Public License as published by the -# Free Software Foundation, either version 3 of the License, or (at your -# option) any later version. -# -# This program is distributed in the hope that it will be useful, but -# WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General -# Public License for more details. -# -# You should have received a copy of the GNU General Public License along -# with this program. If not, see <http://www.gnu.org/licenses/>. -# -# As a special exception, the respective Autoconf Macro's copyright owner -# gives unlimited permission to copy, distribute and modify the configure -# scripts that are the output of Autoconf when processing the Macro. You -# need not follow the terms of the GNU General Public License when using -# or distributing such scripts, even though portions of the text of the -# Macro appear in them. The GNU General Public License (GPL) does govern -# all other use of the material that constitutes the Autoconf Macro. -# -# This special exception to the GPL applies to versions of the Autoconf -# Macro released by the Autoconf Archive. When you make and distribute a -# modified version of the Autoconf Macro, you may extend this special -# exception to the GPL to apply to your modified version as well. - -#serial 23 - -AU_ALIAS([ACX_PTHREAD], [AX_PTHREAD]) -AC_DEFUN([AX_PTHREAD], [ -AC_REQUIRE([AC_CANONICAL_HOST]) -AC_REQUIRE([AC_PROG_CC]) -AC_REQUIRE([AC_PROG_SED]) -AC_LANG_PUSH([C]) -ax_pthread_ok=no - -# We used to check for pthread.h first, but this fails if pthread.h -# requires special compiler flags (e.g. on Tru64 or Sequent). -# It gets checked for in the link test anyway. - -# First of all, check if the user has set any of the PTHREAD_LIBS, -# etcetera environment variables, and if threads linking works using -# them: -if test "x$PTHREAD_CFLAGS$PTHREAD_LIBS" != "x"; then - ax_pthread_save_CC="$CC" - ax_pthread_save_CFLAGS="$CFLAGS" - ax_pthread_save_LIBS="$LIBS" - AS_IF([test "x$PTHREAD_CC" != "x"], [CC="$PTHREAD_CC"]) - CFLAGS="$CFLAGS $PTHREAD_CFLAGS" - LIBS="$PTHREAD_LIBS $LIBS" - AC_MSG_CHECKING([for pthread_join using $CC $PTHREAD_CFLAGS $PTHREAD_LIBS]) - AC_LINK_IFELSE([AC_LANG_CALL([], [pthread_join])], [ax_pthread_ok=yes]) - AC_MSG_RESULT([$ax_pthread_ok]) - if test "x$ax_pthread_ok" = "xno"; then - PTHREAD_LIBS="" - PTHREAD_CFLAGS="" - fi - CC="$ax_pthread_save_CC" - CFLAGS="$ax_pthread_save_CFLAGS" - LIBS="$ax_pthread_save_LIBS" -fi - -# We must check for the threads library under a number of different -# names; the ordering is very important because some systems -# (e.g. DEC) have both -lpthread and -lpthreads, where one of the -# libraries is broken (non-POSIX). - -# Create a list of thread flags to try. Items starting with a "-" are -# C compiler flags, and other items are library names, except for "none" -# which indicates that we try without any flags at all, and "pthread-config" -# which is a program returning the flags for the Pth emulation library. - -ax_pthread_flags="pthreads none -Kthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config" - -# The ordering *is* (sometimes) important. Some notes on the -# individual items follow: - -# pthreads: AIX (must check this before -lpthread) -# none: in case threads are in libc; should be tried before -Kthread and -# other compiler flags to prevent continual compiler warnings -# -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h) -# -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads), Tru64 -# (Note: HP C rejects this with "bad form for `-t' option") -# -pthreads: Solaris/gcc (Note: HP C also rejects) -# -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it -# doesn't hurt to check since this sometimes defines pthreads and -# -D_REENTRANT too), HP C (must be checked before -lpthread, which -# is present but should not be used directly; and before -mthreads, -# because the compiler interprets this as "-mt" + "-hreads") -# -mthreads: Mingw32/gcc, Lynx/gcc -# pthread: Linux, etcetera -# --thread-safe: KAI C++ -# pthread-config: use pthread-config program (for GNU Pth library) - -case $host_os in - - freebsd*) - - # -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able) - # lthread: LinuxThreads port on FreeBSD (also preferred to -pthread) - - ax_pthread_flags="-kthread lthread $ax_pthread_flags" - ;; - - hpux*) - - # From the cc(1) man page: "[-mt] Sets various -D flags to enable - # multi-threading and also sets -lpthread." - - ax_pthread_flags="-mt -pthread pthread $ax_pthread_flags" - ;; - - openedition*) - - # IBM z/OS requires a feature-test macro to be defined in order to - # enable POSIX threads at all, so give the user a hint if this is - # not set. (We don't define these ourselves, as they can affect - # other portions of the system API in unpredictable ways.) - - AC_EGREP_CPP([AX_PTHREAD_ZOS_MISSING], - [ -# if !defined(_OPEN_THREADS) && !defined(_UNIX03_THREADS) - AX_PTHREAD_ZOS_MISSING -# endif - ], - [AC_MSG_WARN([IBM z/OS requires -D_OPEN_THREADS or -D_UNIX03_THREADS to enable pthreads support.])]) - ;; - - solaris*) - - # On Solaris (at least, for some versions), libc contains stubbed - # (non-functional) versions of the pthreads routines, so link-based - # tests will erroneously succeed. (N.B.: The stubs are missing - # pthread_cleanup_push, or rather a function called by this macro, - # so we could check for that, but who knows whether they'll stub - # that too in a future libc.) So we'll check first for the - # standard Solaris way of linking pthreads (-mt -lpthread). - - ax_pthread_flags="-mt,pthread pthread $ax_pthread_flags" - ;; -esac - -# GCC generally uses -pthread, or -pthreads on some platforms (e.g. SPARC) - -AS_IF([test "x$GCC" = "xyes"], - [ax_pthread_flags="-pthread -pthreads $ax_pthread_flags"]) - -# The presence of a feature test macro requesting re-entrant function -# definitions is, on some systems, a strong hint that pthreads support is -# correctly enabled - -case $host_os in - darwin* | hpux* | linux* | osf* | solaris*) - ax_pthread_check_macro="_REENTRANT" - ;; - - aix*) - ax_pthread_check_macro="_THREAD_SAFE" - ;; - - *) - ax_pthread_check_macro="--" - ;; -esac -AS_IF([test "x$ax_pthread_check_macro" = "x--"], - [ax_pthread_check_cond=0], - [ax_pthread_check_cond="!defined($ax_pthread_check_macro)"]) - -# Are we compiling with Clang? - -AC_CACHE_CHECK([whether $CC is Clang], - [ax_cv_PTHREAD_CLANG], - [ax_cv_PTHREAD_CLANG=no - # Note that Autoconf sets GCC=yes for Clang as well as GCC - if test "x$GCC" = "xyes"; then - AC_EGREP_CPP([AX_PTHREAD_CC_IS_CLANG], - [/* Note: Clang 2.7 lacks __clang_[a-z]+__ */ -# if defined(__clang__) && defined(__llvm__) - AX_PTHREAD_CC_IS_CLANG -# endif - ], - [ax_cv_PTHREAD_CLANG=yes]) - fi - ]) -ax_pthread_clang="$ax_cv_PTHREAD_CLANG" - -ax_pthread_clang_warning=no - -# Clang needs special handling, because older versions handle the -pthread -# option in a rather... idiosyncratic way - -if test "x$ax_pthread_clang" = "xyes"; then - - # Clang takes -pthread; it has never supported any other flag - - # (Note 1: This will need to be revisited if a system that Clang - # supports has POSIX threads in a separate library. This tends not - # to be the way of modern systems, but it's conceivable.) - - # (Note 2: On some systems, notably Darwin, -pthread is not needed - # to get POSIX threads support; the API is always present and - # active. We could reasonably leave PTHREAD_CFLAGS empty. But - # -pthread does define _REENTRANT, and while the Darwin headers - # ignore this macro, third-party headers might not.) - - PTHREAD_CFLAGS="-pthread" - PTHREAD_LIBS= - - ax_pthread_ok=yes - - # However, older versions of Clang make a point of warning the user - # that, in an invocation where only linking and no compilation is - # taking place, the -pthread option has no effect ("argument unused - # during compilation"). They expect -pthread to be passed in only - # when source code is being compiled. - # - # Problem is, this is at odds with the way Automake and most other - # C build frameworks function, which is that the same flags used in - # compilation (CFLAGS) are also used in linking. Many systems - # supported by AX_PTHREAD require exactly this for POSIX threads - # support, and in fact it is often not straightforward to specify a - # flag that is used only in the compilation phase and not in - # linking. Such a scenario is extremely rare in practice. - # - # Even though use of the -pthread flag in linking would only print - # a warning, this can be a nuisance for well-run software projects - # that build with -Werror. So if the active version of Clang has - # this misfeature, we search for an option to squash it. - - AC_CACHE_CHECK([whether Clang needs flag to prevent "argument unused" warning when linking with -pthread], - [ax_cv_PTHREAD_CLANG_NO_WARN_FLAG], - [ax_cv_PTHREAD_CLANG_NO_WARN_FLAG=unknown - # Create an alternate version of $ac_link that compiles and - # links in two steps (.c -> .o, .o -> exe) instead of one - # (.c -> exe), because the warning occurs only in the second - # step - ax_pthread_save_ac_link="$ac_link" - ax_pthread_sed='s/conftest\.\$ac_ext/conftest.$ac_objext/g' - ax_pthread_link_step=`$as_echo "$ac_link" | sed "$ax_pthread_sed"` - ax_pthread_2step_ac_link="($ac_compile) && (echo ==== >&5) && ($ax_pthread_link_step)" - ax_pthread_save_CFLAGS="$CFLAGS" - for ax_pthread_try in '' -Qunused-arguments -Wno-unused-command-line-argument unknown; do - AS_IF([test "x$ax_pthread_try" = "xunknown"], [break]) - CFLAGS="-Werror -Wunknown-warning-option $ax_pthread_try -pthread $ax_pthread_save_CFLAGS" - ac_link="$ax_pthread_save_ac_link" - AC_LINK_IFELSE([AC_LANG_SOURCE([[int main(void){return 0;}]])], - [ac_link="$ax_pthread_2step_ac_link" - AC_LINK_IFELSE([AC_LANG_SOURCE([[int main(void){return 0;}]])], - [break]) - ]) - done - ac_link="$ax_pthread_save_ac_link" - CFLAGS="$ax_pthread_save_CFLAGS" - AS_IF([test "x$ax_pthread_try" = "x"], [ax_pthread_try=no]) - ax_cv_PTHREAD_CLANG_NO_WARN_FLAG="$ax_pthread_try" - ]) - - case "$ax_cv_PTHREAD_CLANG_NO_WARN_FLAG" in - no | unknown) ;; - *) PTHREAD_CFLAGS="$ax_cv_PTHREAD_CLANG_NO_WARN_FLAG $PTHREAD_CFLAGS" ;; - esac - -fi # $ax_pthread_clang = yes - -if test "x$ax_pthread_ok" = "xno"; then -for ax_pthread_try_flag in $ax_pthread_flags; do - - case $ax_pthread_try_flag in - none) - AC_MSG_CHECKING([whether pthreads work without any flags]) - ;; - - -mt,pthread) - AC_MSG_CHECKING([whether pthreads work with -mt -lpthread]) - PTHREAD_CFLAGS="-mt" - PTHREAD_LIBS="-lpthread" - ;; - - -*) - AC_MSG_CHECKING([whether pthreads work with $ax_pthread_try_flag]) - PTHREAD_CFLAGS="$ax_pthread_try_flag" - ;; - - pthread-config) - AC_CHECK_PROG([ax_pthread_config], [pthread-config], [yes], [no]) - AS_IF([test "x$ax_pthread_config" = "xno"], [continue]) - PTHREAD_CFLAGS="`pthread-config --cflags`" - PTHREAD_LIBS="`pthread-config --ldflags` `pthread-config --libs`" - ;; - - *) - AC_MSG_CHECKING([for the pthreads library -l$ax_pthread_try_flag]) - PTHREAD_LIBS="-l$ax_pthread_try_flag" - ;; - esac - - ax_pthread_save_CFLAGS="$CFLAGS" - ax_pthread_save_LIBS="$LIBS" - CFLAGS="$CFLAGS $PTHREAD_CFLAGS" - LIBS="$PTHREAD_LIBS $LIBS" - - # Check for various functions. We must include pthread.h, - # since some functions may be macros. (On the Sequent, we - # need a special flag -Kthread to make this header compile.) - # We check for pthread_join because it is in -lpthread on IRIX - # while pthread_create is in libc. We check for pthread_attr_init - # due to DEC craziness with -lpthreads. We check for - # pthread_cleanup_push because it is one of the few pthread - # functions on Solaris that doesn't have a non-functional libc stub. - # We try pthread_create on general principles. - - AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <pthread.h> -# if $ax_pthread_check_cond -# error "$ax_pthread_check_macro must be defined" -# endif - static void routine(void *a) { a = 0; } - static void *start_routine(void *a) { return a; }], - [pthread_t th; pthread_attr_t attr; - pthread_create(&th, 0, start_routine, 0); - pthread_join(th, 0); - pthread_attr_init(&attr); - pthread_cleanup_push(routine, 0); - pthread_cleanup_pop(0) /* ; */])], - [ax_pthread_ok=yes], - []) - - CFLAGS="$ax_pthread_save_CFLAGS" - LIBS="$ax_pthread_save_LIBS" - - AC_MSG_RESULT([$ax_pthread_ok]) - AS_IF([test "x$ax_pthread_ok" = "xyes"], [break]) - - PTHREAD_LIBS="" - PTHREAD_CFLAGS="" -done -fi - -# Various other checks: -if test "x$ax_pthread_ok" = "xyes"; then - ax_pthread_save_CFLAGS="$CFLAGS" - ax_pthread_save_LIBS="$LIBS" - CFLAGS="$CFLAGS $PTHREAD_CFLAGS" - LIBS="$PTHREAD_LIBS $LIBS" - - # Detect AIX lossage: JOINABLE attribute is called UNDETACHED. - AC_CACHE_CHECK([for joinable pthread attribute], - [ax_cv_PTHREAD_JOINABLE_ATTR], - [ax_cv_PTHREAD_JOINABLE_ATTR=unknown - for ax_pthread_attr in PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED; do - AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <pthread.h>], - [int attr = $ax_pthread_attr; return attr /* ; */])], - [ax_cv_PTHREAD_JOINABLE_ATTR=$ax_pthread_attr; break], - []) - done - ]) - AS_IF([test "x$ax_cv_PTHREAD_JOINABLE_ATTR" != "xunknown" && \ - test "x$ax_cv_PTHREAD_JOINABLE_ATTR" != "xPTHREAD_CREATE_JOINABLE" && \ - test "x$ax_pthread_joinable_attr_defined" != "xyes"], - [AC_DEFINE_UNQUOTED([PTHREAD_CREATE_JOINABLE], - [$ax_cv_PTHREAD_JOINABLE_ATTR], - [Define to necessary symbol if this constant - uses a non-standard name on your system.]) - ax_pthread_joinable_attr_defined=yes - ]) - - AC_CACHE_CHECK([whether more special flags are required for pthreads], - [ax_cv_PTHREAD_SPECIAL_FLAGS], - [ax_cv_PTHREAD_SPECIAL_FLAGS=no - case $host_os in - solaris*) - ax_cv_PTHREAD_SPECIAL_FLAGS="-D_POSIX_PTHREAD_SEMANTICS" - ;; - esac - ]) - AS_IF([test "x$ax_cv_PTHREAD_SPECIAL_FLAGS" != "xno" && \ - test "x$ax_pthread_special_flags_added" != "xyes"], - [PTHREAD_CFLAGS="$ax_cv_PTHREAD_SPECIAL_FLAGS $PTHREAD_CFLAGS" - ax_pthread_special_flags_added=yes]) - - AC_CACHE_CHECK([for PTHREAD_PRIO_INHERIT], - [ax_cv_PTHREAD_PRIO_INHERIT], - [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <pthread.h>]], - [[int i = PTHREAD_PRIO_INHERIT;]])], - [ax_cv_PTHREAD_PRIO_INHERIT=yes], - [ax_cv_PTHREAD_PRIO_INHERIT=no]) - ]) - AS_IF([test "x$ax_cv_PTHREAD_PRIO_INHERIT" = "xyes" && \ - test "x$ax_pthread_prio_inherit_defined" != "xyes"], - [AC_DEFINE([HAVE_PTHREAD_PRIO_INHERIT], [1], [Have PTHREAD_PRIO_INHERIT.]) - ax_pthread_prio_inherit_defined=yes - ]) - - CFLAGS="$ax_pthread_save_CFLAGS" - LIBS="$ax_pthread_save_LIBS" - - # More AIX lossage: compile with *_r variant - if test "x$GCC" != "xyes"; then - case $host_os in - aix*) - AS_CASE(["x/$CC"], - [x*/c89|x*/c89_128|x*/c99|x*/c99_128|x*/cc|x*/cc128|x*/xlc|x*/xlc_v6|x*/xlc128|x*/xlc128_v6], - [#handle absolute path differently from PATH based program lookup - AS_CASE(["x$CC"], - [x/*], - [AS_IF([AS_EXECUTABLE_P([${CC}_r])],[PTHREAD_CC="${CC}_r"])], - [AC_CHECK_PROGS([PTHREAD_CC],[${CC}_r],[$CC])])]) - ;; - esac - fi -fi - -test -n "$PTHREAD_CC" || PTHREAD_CC="$CC" - -AC_SUBST([PTHREAD_LIBS]) -AC_SUBST([PTHREAD_CFLAGS]) -AC_SUBST([PTHREAD_CC]) - -# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND: -if test "x$ax_pthread_ok" = "xyes"; then - ifelse([$1],,[AC_DEFINE([HAVE_PTHREAD],[1],[Define if you have POSIX threads libraries and header files.])],[$1]) - : -else - ax_pthread_ok=no - $2 -fi -AC_LANG_POP -])dnl AX_PTHREAD diff --git a/m4/pkg.m4 b/m4/pkg.m4 deleted file mode 100644 index 9a71878..0000000 --- a/m4/pkg.m4 +++ /dev/null @@ -1,159 +0,0 @@ -# pkg.m4 - Macros to locate and utilise pkg-config. -*- Autoconf -*- -# serial 1 (pkg-config-0.24) -# -# Copyright © 2004 Scott James Remnant <scott@netsplit.com>. -# -# This program is free software; you can redistribute it and/or modify -# it under the terms of the GNU General Public License as published by -# the Free Software Foundation; either version 2 of the License, or -# (at your option) any later version. -# -# This program is distributed in the hope that it will be useful, but -# WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -# General Public License for more details. -# -# You should have received a copy of the GNU General Public License -# along with this program; if not, write to the Free Software -# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. -# -# As a special exception to the GNU General Public License, if you -# distribute this file as part of a program that contains a -# configuration script generated by Autoconf, you may include it under -# the same distribution terms that you use for the rest of that program. - -# PKG_PROG_PKG_CONFIG([MIN-VERSION]) -# ---------------------------------- -AC_DEFUN([PKG_PROG_PKG_CONFIG], -[m4_pattern_forbid([^_?PKG_[A-Z_]+$]) -m4_pattern_allow([^PKG_CONFIG(_(PATH|LIBDIR|SYSROOT_DIR|ALLOW_SYSTEM_(CFLAGS|LIBS)))?$]) -m4_pattern_allow([^PKG_CONFIG_(DISABLE_UNINSTALLED|TOP_BUILD_DIR|DEBUG_SPEW)$]) -AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility]) -AC_ARG_VAR([PKG_CONFIG_PATH], [directories to add to pkg-config's search path]) -AC_ARG_VAR([PKG_CONFIG_LIBDIR], [path overriding pkg-config's built-in search path]) - -if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then - AC_PATH_TOOL([PKG_CONFIG], [pkg-config]) -fi -if test -n "$PKG_CONFIG"; then - _pkg_min_version=m4_default([$1], [0.9.0]) - AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version]) - if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then - AC_MSG_RESULT([yes]) - else - AC_MSG_RESULT([no]) - PKG_CONFIG="" - fi -fi[]dnl -])# PKG_PROG_PKG_CONFIG - -# PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) -# -# Check to see whether a particular set of modules exists. Similar -# to PKG_CHECK_MODULES(), but does not set variables or print errors. -# -# Please remember that m4 expands AC_REQUIRE([PKG_PROG_PKG_CONFIG]) -# only at the first occurence in configure.ac, so if the first place -# it's called might be skipped (such as if it is within an "if", you -# have to call PKG_CHECK_EXISTS manually -# -------------------------------------------------------------- -AC_DEFUN([PKG_CHECK_EXISTS], -[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl -if test -n "$PKG_CONFIG" && \ - AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then - m4_default([$2], [:]) -m4_ifvaln([$3], [else - $3])dnl -fi]) - -# _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES]) -# --------------------------------------------- -m4_define([_PKG_CONFIG], -[if test -n "$$1"; then - pkg_cv_[]$1="$$1" - elif test -n "$PKG_CONFIG"; then - PKG_CHECK_EXISTS([$3], - [pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null` - test "x$?" != "x0" && pkg_failed=yes ], - [pkg_failed=yes]) - else - pkg_failed=untried -fi[]dnl -])# _PKG_CONFIG - -# _PKG_SHORT_ERRORS_SUPPORTED -# ----------------------------- -AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED], -[AC_REQUIRE([PKG_PROG_PKG_CONFIG]) -if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then - _pkg_short_errors_supported=yes -else - _pkg_short_errors_supported=no -fi[]dnl -])# _PKG_SHORT_ERRORS_SUPPORTED - - -# PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND], -# [ACTION-IF-NOT-FOUND]) -# -# -# Note that if there is a possibility the first call to -# PKG_CHECK_MODULES might not happen, you should be sure to include an -# explicit call to PKG_PROG_PKG_CONFIG in your configure.ac -# -# -# -------------------------------------------------------------- -AC_DEFUN([PKG_CHECK_MODULES], -[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl -AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl -AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl - -pkg_failed=no -AC_MSG_CHECKING([for $1]) - -_PKG_CONFIG([$1][_CFLAGS], [cflags], [$2]) -_PKG_CONFIG([$1][_LIBS], [libs], [$2]) - -m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS -and $1[]_LIBS to avoid the need to call pkg-config. -See the pkg-config man page for more details.]) - -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` - else - $1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "$2" 2>&1` - fi - # Put the nasty error message in config.log where it belongs - echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD - - m4_default([$4], [AC_MSG_ERROR( -[Package requirements ($2) were not met: - -$$1_PKG_ERRORS - -Consider adjusting the PKG_CONFIG_PATH environment variable if you -installed software in a non-standard prefix. - -_PKG_TEXT])[]dnl - ]) -elif test $pkg_failed = untried; then - AC_MSG_RESULT([no]) - m4_default([$4], [AC_MSG_FAILURE( -[The pkg-config script could not be found or is too old. 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