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ember/acinclude.m4
Erik Ogenvik d0ec705be7 Initial work on porting to SDL2.
2014-05-01 17:14:19 +02:00

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# 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. Make sure it
is in your PATH or set the PKG_CONFIG environment variable to the full
path to pkg-config.
_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
AC_MSG_RESULT([yes])
$3
fi[]dnl
])# PKG_CHECK_MODULES
dnl
dnl AM_PATH_CPPUNIT(MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]])
dnl
AC_DEFUN([AM_PATH_CPPUNIT],
[
AC_ARG_WITH(cppunit-prefix,[ --with-cppunit-prefix=PFX Prefix where CppUnit is installed (optional)],
cppunit_config_prefix="$withval", cppunit_config_prefix="")
AC_ARG_WITH(cppunit-exec-prefix,[ --with-cppunit-exec-prefix=PFX Exec prefix where CppUnit is installed (optional)],
cppunit_config_exec_prefix="$withval", cppunit_config_exec_prefix="")
if test x$cppunit_config_exec_prefix != x ; then
cppunit_config_args="$cppunit_config_args --exec-prefix=$cppunit_config_exec_prefix"
if test x${CPPUNIT_CONFIG+set} != xset ; then
CPPUNIT_CONFIG=$cppunit_config_exec_prefix/bin/cppunit-config
fi
fi
if test x$cppunit_config_prefix != x ; then
cppunit_config_args="$cppunit_config_args --prefix=$cppunit_config_prefix"
if test x${CPPUNIT_CONFIG+set} != xset ; then
CPPUNIT_CONFIG=$cppunit_config_prefix/bin/cppunit-config
fi
fi
AC_PATH_PROG(CPPUNIT_CONFIG, cppunit-config, no)
cppunit_version_min=$1
AC_MSG_CHECKING(for Cppunit - version >= $cppunit_version_min)
no_cppunit=""
if test "$CPPUNIT_CONFIG" = "no" ; then
AC_MSG_RESULT(no)
no_cppunit=yes
else
CPPUNIT_CFLAGS=`$CPPUNIT_CONFIG --cflags`
CPPUNIT_LIBS=`$CPPUNIT_CONFIG --libs`
cppunit_version=`$CPPUNIT_CONFIG --version`
cppunit_major_version=`echo $cppunit_version | \
sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
cppunit_minor_version=`echo $cppunit_version | \
sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
cppunit_micro_version=`echo $cppunit_version | \
sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
cppunit_major_min=`echo $cppunit_version_min | \
sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
if test "x${cppunit_major_min}" = "x" ; then
cppunit_major_min=0
fi
cppunit_minor_min=`echo $cppunit_version_min | \
sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
if test "x${cppunit_minor_min}" = "x" ; then
cppunit_minor_min=0
fi
cppunit_micro_min=`echo $cppunit_version_min | \
sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
if test "x${cppunit_micro_min}" = "x" ; then
cppunit_micro_min=0
fi
cppunit_version_proper=`expr \
$cppunit_major_version \> $cppunit_major_min \| \
$cppunit_major_version \= $cppunit_major_min \& \
$cppunit_minor_version \> $cppunit_minor_min \| \
$cppunit_major_version \= $cppunit_major_min \& \
$cppunit_minor_version \= $cppunit_minor_min \& \
$cppunit_micro_version \>= $cppunit_micro_min `
if test "$cppunit_version_proper" = "1" ; then
AC_MSG_RESULT([$cppunit_major_version.$cppunit_minor_version.$cppunit_micro_version])
else
AC_MSG_RESULT(no)
no_cppunit=yes
fi
fi
if test "x$no_cppunit" = x ; then
ifelse([$2], , :, [$2])
else
CPPUNIT_CFLAGS=""
CPPUNIT_LIBS=""
ifelse([$3], , :, [$3])
fi
AC_SUBST(CPPUNIT_CFLAGS)
AC_SUBST(CPPUNIT_LIBS)
])
AC_DEFUN([AM_CHECK_TOLUAXX],
[
AC_ARG_WITH(toluaxx,AS_HELP_STRING([--with-toluaxx=CMD],[Tolua++ command (default=tolua++)]),
toluaxx_command="$withval", toluaxx_command="tolua++")
AC_CHECK_TOOL(TOLUAXX, $toluaxx_command)
if test "x$TOLUAXX" = "x"; then
dnl Ubuntu uses "tolua++5.1" by default, let's check for that too.
toluaxx_command="tolua++5.1"
AC_CHECK_TOOL(TOLUAXX, $toluaxx_command)
if test "x$TOLUAXX" = "x"; then
AC_MSG_ERROR([Could not find a working tolua++ command (tried '$toluaxx_command'). Use the --with-toluaxx switch to set the proper command to use.])
fi
fi
])
dnl worldforge check for the GL library,
dnl the -l flag is added directly to LIBS
AC_DEFUN([WF_CHECK_GL_SINGLE_LIB],[dnl
AC_LANG_PUSH(C)
dnl AC_MSG_CHECKING(for glViewport in libGL)
AC_CHECK_LIB([GL], [glViewport],[
LIBS="$LIBS -lGL"
CXXFLAGS="$CXXFLAGS -I/usr/X11R6/include -I/usr/include"
AC_DEFINE(HAVE_OPENGL, 1, [Define to 1 if you have the `OpenGL' library.])
],[
AC_MSG_NOTICE([Could not find OpenGL library. This only means that we can't check for indirect rendering.])
]
)
AC_LANG_POP(C)
])dnl end of WF_CHECK_GL_LIBS
# Check for binary relocation support.
# Written by Hongli Lai
# http://autopackage.org/
AC_DEFUN([AM_BINRELOC],
[
AC_ARG_ENABLE(binreloc,
[ --enable-binreloc compile with binary relocation support
(default=enable when available)],
enable_binreloc=$enableval,enable_binreloc=auto)
AC_ARG_ENABLE(binreloc-threads,
[ --enable-binreloc-threads compile binary relocation with threads support
(default=yes)],
enable_binreloc_threads=$enableval,enable_binreloc_threads=yes)
BINRELOC_CFLAGS=
BINRELOC_LIBS=
if test "x$enable_binreloc" = "xauto"; then
AC_CHECK_FILE([/proc/self/maps])
AC_CACHE_CHECK([whether everything is installed to the same prefix],
[br_cv_valid_prefixes], [
if test "$bindir" = '${exec_prefix}/bin' -a "$sbindir" = '${exec_prefix}/sbin' -a \
"$datadir" = '${prefix}/share' -a "$libdir" = '${exec_prefix}/lib' -a \
"$libexecdir" = '${exec_prefix}/libexec' -a "$sysconfdir" = '${prefix}/etc'
then
br_cv_valid_prefixes=yes
else
br_cv_valid_prefixes=no
fi
])
fi
AC_CACHE_CHECK([whether binary relocation support should be enabled],
[br_cv_binreloc],
[if test "x$enable_binreloc" = "xyes"; then
br_cv_binreloc=yes
elif test "x$enable_binreloc" = "xauto"; then
if test "x$br_cv_valid_prefixes" = "xyes" -a \
"x$ac_cv_file__proc_self_maps" = "xyes"; then
br_cv_binreloc=yes
else
br_cv_binreloc=no
fi
else
br_cv_binreloc=no
fi])
if test "x$br_cv_binreloc" = "xyes"; then
BINRELOC_CFLAGS="-DENABLE_BINRELOC"
AC_DEFINE(ENABLE_BINRELOC,,[Use binary relocation?])
if test "x$enable_binreloc_threads" = "xyes"; then
AC_CHECK_LIB([pthread], [pthread_getspecific])
fi
AC_CACHE_CHECK([whether binary relocation should use threads],
[br_cv_binreloc_threads],
[if test "x$enable_binreloc_threads" = "xyes"; then
if test "x$ac_cv_lib_pthread_pthread_getspecific" = "xyes"; then
br_cv_binreloc_threads=yes
else
br_cv_binreloc_threads=no
fi
else
br_cv_binreloc_threads=no
fi])
if test "x$br_cv_binreloc_threads" = "xyes"; then
BINRELOC_LIBS="-lpthread"
AC_DEFINE(BR_PTHREAD,1,[Include pthread support for binary relocation?])
else
BINRELOC_CFLAGS="$BINRELOC_CFLAGS -DBR_PTHREADS=0"
AC_DEFINE(BR_PTHREAD,0,[Include pthread support for binary relocation?])
fi
fi
AC_SUBST(BINRELOC_CFLAGS)
AC_SUBST(BINRELOC_LIBS)
])
# AC_COMPILE_STDCXX_11
#Copyright FSF, licensed inder the FDL as specified in http://gcc.gnu.org/onlinedocs/libstdc++/manual/appendix_gfdl.html
#Copied from http://gcc.gnu.org/onlinedocs/libstdc++/manual/backwards.html
AC_DEFUN([AC_COMPILE_STDCXX_11], [
AC_CACHE_CHECK(if g++ supports C++11 features without additional flags,
ac_cv_cxx_compile_cxx11_native,
[AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_TRY_COMPILE([
template <typename T>
struct check final
{
static constexpr T value{ __cplusplus };
};
typedef check<check<bool>> right_angle_brackets;
int a;
decltype(a) b;
typedef check<int> check_type;
check_type c{};
check_type&& cr = static_cast<check_type&&>(c);
static_assert(check_type::value == 201103L, "C++11 compiler");],,
ac_cv_cxx_compile_cxx11_native=yes, ac_cv_cxx_compile_cxx11_native=no)
AC_LANG_RESTORE
])
AC_CACHE_CHECK(if g++ supports C++11 features with -std=c++11,
ac_cv_cxx_compile_cxx11_cxx,
[AC_LANG_SAVE
AC_LANG_CPLUSPLUS
ac_save_CXXFLAGS="$CXXFLAGS"
CXXFLAGS="$CXXFLAGS -std=c++11"
AC_TRY_COMPILE([
template <typename T>
struct check final
{
static constexpr T value{ __cplusplus };
};
typedef check<check<bool>> right_angle_brackets;
int a;
decltype(a) b;
typedef check<int> check_type;
check_type c{};
check_type&& cr = static_cast<check_type&&>(c);
static_assert(check_type::value == 201103L, "C++11 compiler");],,
ac_cv_cxx_compile_cxx11_cxx=yes, ac_cv_cxx_compile_cxx11_cxx=no)
CXXFLAGS="$ac_save_CXXFLAGS"
AC_LANG_RESTORE
])
AC_CACHE_CHECK(if g++ supports C++11 features with -std=gnu++11,
ac_cv_cxx_compile_cxx11_gxx,
[AC_LANG_SAVE
AC_LANG_CPLUSPLUS
ac_save_CXXFLAGS="$CXXFLAGS"
CXXFLAGS="$CXXFLAGS -std=gnu++11"
AC_TRY_COMPILE([
template <typename T>
struct check final
{
static constexpr T value{ __cplusplus };
};
typedef check<check<bool>> right_angle_brackets;
int a;
decltype(a) b;
typedef check<int> check_type;
check_type c{};
check_type&& cr = static_cast<check_type&&>(c);
static_assert(check_type::value == 201103L, "C++11 compiler");],,
ac_cv_cxx_compile_cxx11_gxx=yes, ac_cv_cxx_compile_cxx11_gxx=no)
CXXFLAGS="$ac_save_CXXFLAGS"
AC_LANG_RESTORE
])
if test "$ac_cv_cxx_compile_cxx11_native" = yes ||
test "$ac_cv_cxx_compile_cxx11_cxx" = yes ||
test "$ac_cv_cxx_compile_cxx11_gxx" = yes; then
AC_DEFINE(HAVE_STDCXX_11,,[Define if g++ supports C++11 features. ])
fi
])
# AC_HEADER_STDCXX_11
#Copyright FSF, licensed inder the FDL as specified in http://gcc.gnu.org/onlinedocs/libstdc++/manual/appendix_gfdl.html
#Copied from http://gcc.gnu.org/onlinedocs/libstdc++/manual/backwards.html
AC_DEFUN([AC_HEADER_STDCXX_11], [
AC_CACHE_CHECK(for ISO C++11 include files,
ac_cv_cxx_stdcxx_11,
[AC_REQUIRE([AC_COMPILE_STDCXX_11])
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
ac_save_CXXFLAGS="$CXXFLAGS"
CXXFLAGS="$CXXFLAGS -std=gnu++11"
AC_TRY_COMPILE([
#include <cassert>
#include <ccomplex>
#include <cctype>
#include <cerrno>
#include <cfenv>
#include <cfloat>
#include <cinttypes>
#include <ciso646>
#include <climits>
#include <clocale>
#include <cmath>
#include <csetjmp>
#include <csignal>
#include <cstdalign>
#include <cstdarg>
#include <cstdbool>
#include <cstddef>
#include <cstdint>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <ctgmath>
#include <ctime>
// #include <cuchar>
#include <cwchar>
#include <cwctype>
#include <algorithm>
#include <array>
#include <atomic>
#include <bitset>
#include <chrono>
// #include <codecvt>
#include <complex>
#include <condition_variable>
#include <deque>
#include <exception>
#include <forward_list>
#include <fstream>
#include <functional>
#include <future>
#include <initializer_list>
#include <iomanip>
#include <ios>
#include <iosfwd>
#include <iostream>
#include <istream>
#include <iterator>
#include <limits>
#include <list>
#include <locale>
#include <map>
#include <memory>
#include <mutex>
#include <new>
#include <numeric>
#include <ostream>
#include <queue>
#include <random>
#include <ratio>
#include <regex>
#include <scoped_allocator>
#include <set>
#include <sstream>
#include <stack>
#include <stdexcept>
#include <streambuf>
#include <string>
#include <system_error>
#include <thread>
#include <tuple>
#include <typeindex>
#include <typeinfo>
#include <type_traits>
#include <unordered_map>
#include <unordered_set>
#include <utility>
#include <valarray>
#include <vector>
],,
ac_cv_cxx_stdcxx_11=yes, ac_cv_cxx_stdcxx_11=no)
AC_LANG_RESTORE
CXXFLAGS="$ac_save_CXXFLAGS"
])
if test "$ac_cv_cxx_stdcxx_11" = yes; then
AC_DEFINE(STDCXX_11_HEADERS,,[Define if ISO C++11 header files are present. ])
fi
])
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