AC_INIT(ObjFW, 0.4-dev, js@webkeks.org)
AC_CONFIG_SRCDIR(src)
AC_CANONICAL_HOST
AC_LANG([Objective C])
AC_PROG_OBJC
AC_PROG_OBJCPP
AC_PROG_LN_S
AC_PROG_INSTALL
AC_PROG_EGREP
CPP="$OBJCPP"
CPPFLAGS="$CPPFLAGS $OBJCPPFLAGS"
OBJCFLAGS="$OBJCFLAGS -Wall -fexceptions -fobjc-exceptions"
OBJCFLAGS="$OBJCFLAGS -fconstant-string-class=OFConstString"
AX_CHECK_COMPILER_FLAGS(-pipe, [OBJCFLAGS="$OBJCFLAGS -pipe"])
AX_CHECK_COMPILER_FLAGS(-fno-common, [OBJCFLAGS="$OBJCFLAGS -fno-common"])
AX_CHECK_COMPILER_FLAGS(-fno-constant-cfstrings, [
NO_CONST_CFSTRINGS="-fno-constant-cfstrings"
OBJCFLAGS="$OBJCFLAGS -fno-constant-cfstrings"])
AC_SUBST(NO_CONST_CFSTRINGS)
AC_MSG_CHECKING(whether Objective C compiler supports fast enumeration)
AC_TRY_COMPILE([
#import <objc/objc.h>
@protocol OFFastEnumeration
- (int)countByEnumeratingWithState: (void*)state
objects: (id*)objects
count: (int)count;
@end
], [
id n = nil;
for (id i in n);
], [
AC_DEFINE(OF_HAVE_FAST_ENUMERATION, 1,
[Compiler support for Fast Enumeration])
AC_MSG_RESULT(yes)
], [
AC_MSG_RESULT(no)])
AC_MSG_CHECKING(whether Objective C compiler supports properties)
AC_TRY_COMPILE([
#import <objc/objc.h>
@interface Foo
{
id bar;
}
@property (retain, nonatomic) id bar;
@end
], [
Foo *foo = nil;
[foo setBar: nil];
[foo bar];
], [
AC_DEFINE(OF_HAVE_PROPERTIES, 1, [Compiler support for properties])
AC_SUBST(PROPERTIESTESTS_M, "PropertiesTests.m")
AC_MSG_RESULT(yes)
], [
AC_MSG_RESULT(no)])
AC_CHECK_HEADERS([objfw-rt.h objc/objc.h])
test x"$ac_cv_header_objfw_rt_h" = x"yes" && objc_runtime="ObjFW-RT"
if test x"$ac_cv_header_objc_objc_h" = x"yes"; then
dnl TODO: This is ugly. Let's think of a better check.
AC_EGREP_CPP(gnu, [
#import <objc/objc.h>
#ifdef __objc_INCLUDE_GNU
gnu
#endif
],
[test x"$objc_runtime" = "x" && objc_runtime="GNU"],
[objc_runtime="Apple"])
fi
AC_MSG_CHECKING(which Objective C runtime we use)
case $objc_runtime in
ObjFW-RT)
AC_DEFINE(OF_OBJFW_RUNTIME, 1,
[Whether we use the ObjFW runtime])
AC_SUBST(GNU_RUNTIME, "-fgnu-runtime")
OBJCFLAGS="$OBJCFLAGS -fgnu-runtime"
LIBS="$LIBS -lobjfw-rt"
;;
Apple)
AC_DEFINE(OF_APPLE_RUNTIME, 1,
[Whether we use the Apple ObjC runtime])
LIBS="$LIBS -lobjc"
;;
GNU)
AC_DEFINE(OF_GNU_RUNTIME, 1,
[Whether we use the GNU ObjC runtime])
LIBS="$LIBS -lobjc"
;;
*)
AC_MSG_RESULT(none)
AC_MSG_ERROR(No ObjC runtime found! Please install ObjFW-RT!)
;;
esac
AC_MSG_RESULT($objc_runtime)
AC_CHECK_FUNC(objc_getProperty,, [
AC_DEFINE(NEED_OBJC_PROPERTIES_INIT, 1,
[Whether objc_properties_init needs to be called])
AC_SUBST(OBJC_PROPERTIES_M, "objc_properties.m")])
AC_CHECK_FUNC(objc_enumerationMutation, [
AC_DEFINE(HAVE_OBJC_ENUMERATIONMUTATION, 1,
[Whether we have objc_enumerationMutation])])
BUILDSYS_LIB
AC_DEFINE_UNQUOTED(PLUGIN_SUFFIX, "$PLUGIN_SUFFIX", [Suffix for plugins])
if test x"$PLUGIN_SUFFIX" != "x"; then
AC_SUBST(OFPLUGIN_M, "OFPlugin.m")
AC_SUBST(OFPLUGINTESTS_M, "OFPluginTests.m")
AC_SUBST(TESTPLUGIN, "plugin")
AC_DEFINE(OF_PLUGINS, 1, [Whether we have plugin support])
AC_SUBST(OFPLUGINS_DEF, "-DOF_PLUGINS")
fi
case "$host_os" in
darwin*)
AC_SUBST(REEXPORT_LIBOBJC, [-Wl,-reexport-lobjc])
AC_SUBST(LDFLAGS_REEXPORT, [-Wl,-reexport-lobjfw])
;;
esac
AC_C_BIGENDIAN([
AC_DEFINE(OF_BIG_ENDIAN, 1, [Whether we are big endian])
AC_SUBST(ENDIANESS_DEF, "-DOF_BIG_ENDIAN")])
AC_MSG_CHECKING(for SIZE_MAX)
AC_EGREP_CPP(yes, [
#include <stdint.h>
#include <limits.h>
#ifdef SIZE_MAX
yes
#endif
], AC_MSG_RESULT(yes), [
AC_MSG_RESULT(no)
AC_MSG_CHECKING(for SIZE_T_MAX)
AC_EGREP_CPP(yes, [
#include <stdint.h>
#include <limits.h>
#ifdef SIZE_T_MAX
yes
#endif
], [
AC_MSG_RESULT(yes)
size_max="SIZE_T_MAX"], [
AC_MSG_RESULT(no)
size_max="((size_t)-1)"])
AC_DEFINE_UNQUOTED(SIZE_MAX, $size_max, [Maximum value for size_t])])
AC_CHECK_FUNC(asprintf, [
have_asprintf="yes"
AC_DEFINE(OF_HAVE_ASPRINTF, 1, [Whether we have asprintf])
AC_SUBST(ASPRINTF_DEF, "-DOF_HAVE_ASPRINTF")
], [
have_asprintf="no"
AC_SUBST(ASPRINTF_M, "asprintf.m")
AC_MSG_CHECKING(whether snprintf returns something useful)
AC_CACHE_VAL(ac_cv_snprintf_useful_ret, [
AC_TRY_RUN([
#include <stdio.h>
int
main()
{
return (snprintf(NULL, 0, "asd") == 3 ? 0 : 1);
}],
ac_cv_snprintf_useful_ret="yes",
ac_cv_snprintf_useful_ret="no",
ac_cv_snprintf_useful_ret="no")])
AC_MSG_RESULT($ac_cv_snprintf_useful_ret)])
test x"$have_asprintf" != x"yes" -a x"$ac_cv_snprintf_useful_ret" != x"yes" && \
AC_MSG_ERROR(No asprintf and no snprintf returning required space!)
AC_CHECK_LIB(m, fmod, LIBS="$LIBS -lm")
AC_CHECK_LIB(dl, dlopen, LIBS="$LIBS -ldl")
AC_ARG_ENABLE(threads,
AS_HELP_STRING([--disable-threads], [disable thread support]))
if test x"$enable_threads" != x"no"; then
case "$host_os" in
mingw*)
AC_MSG_CHECKING(for threads)
AC_MSG_RESULT(win32)
;;
*)
ACX_PTHREAD([
CPPLAGS="$CPPFLAGS $PTHREAD_CFLAGS"
LIBS="$LIBS $PTHREAD_LIBS"
AC_DEFINE(OF_HAVE_PTHREADS, 1,
[Whether we have pthreads])
AC_CHECK_FUNC(pthread_spin_lock, [
AC_DEFINE(OF_HAVE_PTHREAD_SPINLOCKS, 1,
[Whether we have pthread spinlocks])])
AC_CHECK_FUNC(sched_yield, [
AC_DEFINE(OF_HAVE_SCHED_YIELD, 1,
[Whether we have sched_yield])])
], [
AC_MSG_ERROR(No supported threads found!)])
;;
esac
AC_DEFINE(OF_THREADS, 1, [Whether we have threads])
AC_SUBST(OFTHREAD_M, "OFThread.m")
AC_SUBST(OFTHREADTESTS_M, "OFThreadTests.m")
AC_SUBST(THREADING_H, "threading.h")
AC_CHECK_FUNC(objc_sync_enter,, [
AC_SUBST(OBJC_SYNC_M, "objc_sync.m")
AC_DEFINE(NEED_OBJC_SYNC_INIT, 1,
[Whether objc_sync_init needs to be called])])
atomic_ops="none"
AC_MSG_CHECKING(whether __sync_* works)
AC_TRY_LINK([#include <stdint.h>], [
int32_t i, j;
if (__sync_add_and_fetch(&i, 1))
j = __sync_sub_and_fetch(&i, 1);
while (!__sync_bool_compare_and_swap(&i, 0, 1));
], [
AC_MSG_RESULT(yes)
atomic_ops="gcc builtins"
AC_DEFINE(OF_HAVE_GCC_ATOMIC_OPS, 1,
[Whether gcc atomic operations are available])
], [
old_OBJCFLAGS="$OBJCFLAGS"
OBJCFLAGS="$OBJCFLAGS -march=i486"
AC_TRY_LINK([#include <stdint.h>], [
int32_t i, j;
if (__sync_add_and_fetch(&i, 1))
j = __sync_sub_and_fetch(&i, 1);
while (!__sync_bool_compare_and_swap(&i, 0, 1));
], [
AC_MSG_RESULT([yes, with -march=i486])
atomic_ops="gcc builtins (with -march=i486)"
AC_DEFINE(OF_HAVE_GCC_ATOMIC_OPS, 1,
[Whether gcc atomic operations are available])
AC_SUBST(ATOMIC_OBJCFLAGS, "-march=i486")
], [
AC_MSG_RESULT(no)
OBJCFLAGS="$old_OBJCFLAGS"])])
if test x"$atomic_ops" = x"none"; then
AC_CHECK_HEADER(libkern/OSAtomic.h, [
atomic_ops="libkern/OSAtomic.h"
AC_DEFINE(OF_HAVE_LIBKERN_OSATOMIC_H, 1,
[Whether we have libkern/OSAtomic.h])])
fi
else
dnl We can only have one thread - therefore everything is atomic
atomic_ops="not needed"
fi
AC_MSG_CHECKING(for atomic operations)
if test x"$atomic_ops" != x"none"; then
AC_DEFINE(OF_ATOMIC_OPS, 1, [Whether we have atomic operations])
AC_SUBST(ATOMIC_H, "atomic.h")
fi
AC_MSG_RESULT($atomic_ops)
AC_CHECK_LIB(socket, socket, LIBS="$LIBS -lsocket")
AC_CHECK_LIB(ws2_32, main, LIBS="$LIBS -lws2_32")
AC_MSG_CHECKING(for getaddrinfo)
AC_TRY_COMPILE([
#include <stddef.h>
#ifndef _WIN32
#include <sys/types.h>
#include <sys/socket.h>
#include <netdb.h>
#else
#define _WIN32_WINNT 0x0501
#include <ws2tcpip.h>
#endif
], [
struct addrinfo ai;
getaddrinfo(NULL, NULL, NULL, NULL);
], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_GETADDRINFO, 1, [Whether we have getaddrinfo])
if test x"$enable_threads" != x"no"; then
AC_MSG_CHECKING(whether getaddrinfo is thread-safe)
case "$host_os" in
darwin[[12345]].*)
have_threadsafe_getaddrinfo="no"
;;
darwin*)
have_threadsafe_getaddrinfo="yes"
;;
freebsd[[1234]].* | freebsd5.[[1234]]*)
have_threadsafe_getaddrinfo="no"
;;
freebsd*)
have_threadsafe_getaddrinfo="yes"
;;
netbsd[[123]].*)
have_threadsafe_getaddrinfo="no"
;;
netbsd*)
have_threadsafe_getaddrinfo="yes"
;;
solaris*)
have_threadsafe_getaddrinfo="yes"
;;
*)
have_threadsafe_getaddrinfo="unknown"
;;
esac
if test x"$have_threadsafe_getaddrinfo" = x"unknown"; then
AC_EGREP_CPP(yes, [
#include <netdb.h>
#ifdef h_errno
yes
#end
],
[have_threadsafe_getaddrinfo="yes"],
[have_threadsafe_getaddrinfo="no"])
fi
test x"$have_threadsafe_getaddrinfo" = x"yes" && \
AC_DEFINE(HAVE_THREADSAFE_GETADDRINFO, 1,
[Whether getaddrinfo is thread-safe])
AC_MSG_RESULT($have_threadsafe_getaddrinfo)
fi
], [
AC_MSG_RESULT(no)])
AC_CHECK_FUNC(madvise, [AC_DEFINE(HAVE_MADVISE, 1, [Whether we have madvise])])
if test x"$GOBJC" = x"yes"; then
OBJCFLAGS="$OBJCFLAGS -Werror"
AC_MSG_CHECKING(whether gcc has bug objc/27438)
AC_TRY_COMPILE([
#import <objc/objc.h>
@interface OFConstString
{
Class isa;
const char *string;
unsigned long size;
}
@end
void *_OFConstStringClassReference;
], [
OFConstString *test = @"";
test++; /* Get rid of unused variable warning */
], [AC_MSG_RESULT(no)], [
AC_MSG_RESULT([yes, adding -Wno-unused-variable])
OBJCFLAGS="$OBJCFLAGS -Wno-unused-variable"
AC_SUBST(NO_WARN_UNUSED, "-Wno-unused-variable")])
AC_MSG_CHECKING(whether we need -Wno-strict-aliasing due to gcc bugs)
AC_TRY_COMPILE([
#import <objc/objc.h>
@interface OFObject
{
Class isa;
}
@end
static struct {
Class isa;
} object;
], [
OFObject *test = (OFObject*)&object;
test++; /* Get rid of unused variable warning */
], [AC_MSG_RESULT(no)], [
AC_MSG_RESULT(yes)
OBJCFLAGS="$OBJCFLAGS -Wno-strict-aliasing"])
fi
if test x"$cross_compiling" = x"yes"; then
case "$host" in
*-*-mingw*)
AC_PATH_PROG(WINE, wine)
if test x"$WINE" != "x"; then
AC_SUBST(TESTS, "tests")
AC_SUBST(TEST_LAUNCHER, "$WINE")
fi
;;
esac
else
AC_SUBST(TESTS, "tests")
fi
BUILDSYS_TOUCH_DEPS
dnl We don't call AC_PROG_CPP, but only AC_PROG_OBJCPP and set CPP to OBJCPP
dnl and add OBJCPPFLAGS to CPPFLAGS, thus we need to AC_SUBST these ourself
AC_SUBST(CPP)
AC_SUBST(CPPFLAGS)
AC_SUBST(PACKAGE, ObjFW)
AC_CONFIG_FILES([buildsys.mk extra.mk utils/objfw-config])
AC_CONFIG_HEADERS([config.h src/objfw-defs.h])
AC_OUTPUT
if test x"$objc_runtime" = x"GNU"; then
echo
echo "Warning: You are using GNU libobjc! Support for GNU libobjc will "
echo "be dropped in the next version! You should upgrade to ObjFW-RT"
echo "(the ObjFW runtime) instead!"
fi