Artifact c29aae2ddeef00f190c5a30e943635d40847572d45e9d1a2be3c6a68132d7c24:
- File
configure.ac
— part of check-in
[62e2de30b9]
at
2015-02-16 08:39:17
on branch trunk
— Explicitly pass errno to exceptions
The old behaviour where the exception would access errno directly on
creation of the exception was very fragile. The two main problems with
it were that sometimes it would pick up an errno even though none had
been set and in other cases that when the exception was created errno
had already been overridden.This also greatly increases errno handling on Win32, especially in
conjunction with sockets. It can still be improved further, though. (user: js, size: 28096) [annotate] [blame] [check-ins using]
AC_INIT(ObjFW, 0.8-dev, js@webkeks.org) BUILDSYS_INIT AS_IF([test configure.ac -nt configure], [ AC_MSG_ERROR([configure.ac is newer than configure! Run ./autogen.sh!]) ]) AC_CONFIG_SRCDIR(src) AC_CANONICAL_HOST case "$host" in *-msdosdjgpp*) enable_shared="no" enable_threads="no" enable_sockets="no" ;; *-psp-*) AS_IF([test x"$DEVKITPSP" = x""], [ AC_MSG_ERROR( [DEVKITPSP is not set! Please set DEVKITPSP.]) ]) OBJCFLAGS="$OBJCFLAGS -G0" CPPFLAGS="$CPPFLAGS -I$DEVKITPSP/psp/sdk/include" LDFLAGS="$LDFLAGS -G0" LIBS="$LIBS -L$DEVKITPSP/psp/sdk/lib -lpspdebug -lpspdisplay" LIBS="$LIBS -lpspge -lpspctrl -lpspsdk -lc -lpspnet" LIBS="$LIBS -lpspnet_inet -lpspnet_apctl -lpspnet_resolver" LIBS="$LIBS -lpsputility -lpspuser -lpspkernel" enable_shared="no" enable_threads="no" # TODO enable_sockets="no" # TODO AC_SUBST(MAP_LDFLAGS, ['-Wl,-Map,$@.map']) ;; esac AC_LANG([Objective C]) AC_PROG_OBJC([clang gcc]) AC_PROG_OBJCPP AC_PROG_LN_S AC_PROG_INSTALL AC_PROG_EGREP AC_ARG_WITH(wii, AS_HELP_STRING([--with-wii], [build for Wii])) AS_IF([test x"$with_wii" = x"yes"], [ AS_IF([test x"$DEVKITPRO" = x""], [ AC_MSG_ERROR([DEVKITPRO is not set! Please set DEVKITPRO.]) ]) OBJCFLAGS="$OBJCFLAGS -mrvl -mcpu=750 -meabi -mhard-float" CPPFLAGS="$CPPFLAGS -DGEKKO -I$DEVKITPRO/libogc/include" LDFLAGS="$LDFLAGS -mrvl -mcpu=750 -meabi -mhard-float" LIBS="$LIBS -L$DEVKITPRO/libogc/lib/wii -lfat -logc" TESTS_LIBS="$TESTS_LIBS -lwiiuse -lbte" enable_shared="no" enable_threads="no" # TODO AC_SUBST(MAP_LDFLAGS, ['-Wl,-Map,$@.map']) ]) AC_ARG_WITH(nds, AS_HELP_STRING([--with-nds], [build for Nintendo DS])) AS_IF([test x"$with_nds" = x"yes"], [ AS_IF([test x"$DEVKITPRO" = x""], [ AC_MSG_ERROR([DEVKITPRO is not set! Please set DEVKITPRO.]) ]) OBJCFLAGS="$OBJCFLAGS -march=armv5te -mtune=arm946e-s" OBJCFLAGS="$OBJCFLAGS -mthumb -mthumb-interwork" CPPFLAGS="$CPPFLAGS -DARM9 -I$DEVKITPRO/libnds/include" LDFLAGS="$LDFLAGS -specs=ds_arm9.specs" LIBS="$LIBS -L$DEVKITPRO/libnds/lib -lfilesystem -lfat -lnds9" enable_shared="no" enable_threads="no" # TODO enable_sockets="no" # TODO AC_DEFINE(OF_NINTENDO_DS, 1, [Whether we are compiling for the Nintendo DS]) AC_SUBST(MAP_LDFLAGS, ['-Wl,-Map,$@.map']) ]) CPP="$OBJCPP" CPPFLAGS="$CPPFLAGS $OBJCPPFLAGS" OBJCFLAGS="$OBJCFLAGS -Wall -fexceptions -fobjc-exceptions -funwind-tables" OBJCFLAGS="$OBJCFLAGS -fconstant-string-class=OFConstantString" AX_CHECK_COMPILER_FLAGS(-std=c11, [ OBJCFLAGS="$OBJCFLAGS -std=c11" ], [ AX_CHECK_COMPILER_FLAGS(-std=c1x, [ OBJCFLAGS="$OBJCFLAGS -std=c1x" ], [ AX_CHECK_COMPILER_FLAGS(-std=c99, [OBJCFLAGS="$OBJCFLAGS -std=c99"]) ]) ]) 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, [ OBJCFLAGS="$OBJCFLAGS -fno-constant-cfstrings" AC_SUBST(NO_CONST_CFSTRINGS, "-fno-constant-cfstrings") ]) AX_CHECK_COMPILER_FLAGS(-Wshorten-64-to-32 -Werror, [OBJCFLAGS="$OBJCFLAGS -Wshorten-64-to-32"]) AX_CHECK_COMPILER_FLAGS(-Wsemicolon-before-method-body -Werror, [OBJCFLAGS="$OBJCFLAGS -Wsemicolon-before-method-body"]) AX_CHECK_COMPILER_FLAGS(-Wobjc-property-synthesis -Werror, [OBJCFLAGS="$OBJCFLAGS -Wobjc-property-synthesis"]) case "$OBJC" in *clang*) ASFLAGS="$ASFLAGS -no-integrated-as" ;; esac AC_MSG_CHECKING(whether Objective C compiler supports properties) AC_TRY_COMPILE([ @interface Foo { id bar; } @property (retain, nonatomic) id bar; @end ], [ Foo *foo = (id)0; [foo setBar: (id)0]; [foo bar]; ], [ AC_SUBST(PROPERTIESTESTS_M, "PropertiesTests.m") AC_MSG_RESULT(yes) ], [ AC_MSG_RESULT(no) ]) AC_MSG_CHECKING(whether Objective C compiler supports blocks) old_OBJCFLAGS="$OBJCFLAGS" OBJCFLAGS="$OBJCFLAGS -fblocks" AC_TRY_COMPILE([], [ int (^foo)(int bar); foo = ^ (int bar) { return 0; } ], [ AC_SUBST(BLOCKS_FLAGS, "-fblocks") AC_SUBST(OFBLOCKTESTS_M, "OFBlockTests.m") AC_MSG_RESULT(yes) ], [ AC_MSG_RESULT(no) OBJCFLAGS="$old_OBJCFLAGS" ]) AC_CHECK_TOOL(AR, ar) AC_PROG_RANLIB AC_ARG_ENABLE(shared, AS_HELP_STRING([--disable-shared], [do not build shared library])) AS_IF([test x"$enable_shared" != x"no"], [ BUILDSYS_SHARED_LIB AC_SUBST(OBJFW_SHARED_LIB, "${LIB_PREFIX}objfw${LIB_SUFFIX}") AC_SUBST(EXCEPTIONS_LIB_A, "exceptions.lib.a") AC_SUBST(EXCEPTIONS_EXCEPTIONS_LIB_A, "exceptions/exceptions.lib.a") AC_SUBST(FORWARDING_LIB_A, "forwarding.lib.a") AC_SUBST(FORWARDING_FORWARDING_LIB_A, "forwarding/forwarding.lib.a") AC_SUBST(LOOKUP_ASM_LIB_A, "lookup-asm.lib.a") AC_SUBST(LOOKUP_ASM_LOOKUP_ASM_LIB_A, "lookup-asm/lookup-asm.lib.a") ], [ AC_SUBST(LIBOBJFW_DEP, "../src/libobjfw.a") AC_SUBST(LIBOBJFW_DEP_LVL2, "../../src/libobjfw.a") ]) AC_ARG_ENABLE(static, AS_HELP_STRING([--enable-static], [build static library])) AS_IF([test x"$enable_static" = x"yes" -o x"$enable_shared" = x"no"], [ AC_SUBST(OBJFW_STATIC_LIB, "libobjfw.a") AC_SUBST(EXCEPTIONS_A, "exceptions.a") AC_SUBST(EXCEPTIONS_EXCEPTIONS_A, "exceptions/exceptions.a") AC_SUBST(FORWARDING_A, "forwarding.a") AC_SUBST(FORWARDING_FORWARDING_A, "forwarding/forwarding.a") AC_SUBST(LOOKUP_ASM_A, "lookup-asm.a") AC_SUBST(LOOKUP_ASM_LOOKUP_ASM_A, "lookup-asm/lookup-asm.a") ]) AC_DEFINE_UNQUOTED(PLUGIN_SUFFIX, "$PLUGIN_SUFFIX", [Suffix for plugins]) AS_IF([test x"$PLUGIN_SUFFIX" != x""], [ AC_SUBST(USE_SRCS_PLUGINS, '${SRCS_PLUGINS}') AC_SUBST(TESTPLUGIN, "plugin") AC_DEFINE(OF_HAVE_PLUGINS, 1, [Whether we have plugin support]) ]) AC_MSG_CHECKING(whether we need -D_GNU_SOURCE) AC_EGREP_CPP(yes, [ #include <stdlib.h> #if defined(__GLIBC__) || defined(__MINGW32__) yes #endif ], [ CPPFLAGS="-D_GNU_SOURCE $CPPFLAGS" AC_MSG_RESULT(yes) ], [ AC_MSG_RESULT(no) ]) objc_runtime="ObjFW runtime" AC_CHECK_HEADER(objc/objc.h) AC_MSG_CHECKING(which Objective C runtime to use) AC_ARG_ENABLE(runtime, AS_HELP_STRING([--enable-runtime], [use the included runtime])) AC_ARG_ENABLE(seluid24, AS_HELP_STRING([--enable-seluid24], [use 24 bit instead of 16 bit for selectors UIDs])) AS_IF([test x"$enable_runtime" != x"yes"], [ AS_IF([test x"$ac_cv_header_objc_objc_h" = x"yes"], [ dnl TODO: This is ugly. Let's think of a better check. AC_EGREP_CPP(yes, [ #import <objc/objc.h> #ifdef __objc_INCLUDE_GNU yes #endif ], [ dnl We don't want the GNU runtime true ], [ objc_runtime="Apple runtime" ]) ]) ]) AC_MSG_RESULT($objc_runtime) case $objc_runtime in "ObjFW runtime") AC_DEFINE(OF_OBJFW_RUNTIME, 1, [Whether we use the ObjFW runtime]) AC_MSG_CHECKING([whether -fobjc-runtime=objfw is supported]) old_OBJCFLAGS="$OBJCFLAGS" OBJCFLAGS="$OBJCFLAGS -fobjc-runtime=objfw" AC_TRY_LINK([ @interface Test + (void)test; @end @implementation Test + (void)test { } @end void* objc_msg_lookup(void *obj, void *sel) { return (void*)0; } void __objc_exec_class(void *module) { } ], [ [Test test]; ], [ RUNTIME_FLAGS="-fobjc-runtime=objfw" AC_MSG_RESULT(yes) ], [ RUNTIME_FLAGS="-fgnu-runtime" OBJCFLAGS="$old_OBJCFLAGS -fgnu-runtime" AC_MSG_RESULT(no) old_compiler="yes" ]) AC_SUBST(RUNTIME, "runtime") AC_SUBST(RUNTIME_FLAGS) if test x"$enable_shared" != x"no"; then AC_SUBST(RUNTIME_LIB_A, "runtime.lib.a") AC_SUBST(RUNTIME_RUNTIME_LIB_A, "runtime/runtime.lib.a") fi if test x"$enable_static" = x"yes" \ -o x"$enable_shared" = x"no"; then AC_SUBST(RUNTIME_A, "runtime.a") AC_SUBST(RUNTIME_RUNTIME_A, "runtime/runtime.a") fi AS_IF([test x"$enable_seluid24" = x"yes"], [ AC_DEFINE(OF_SELUID24, 1, [Whether to use 24 bit selector UIDs]) ]) AC_MSG_CHECKING(for exception type) AC_TRY_COMPILE([ extern void foo(); ], [ @try { foo(); } @finally { foo(); } ], [ AS_IF([$EGREP __gnu_objc_personality_v0 \ conftest.$ac_objext >/dev/null], [ exception_type="DWARF" ]) AS_IF([$EGREP __gnu_objc_personality_sj0 \ conftest.$ac_objext >/dev/null], [ exception_type="SjLj" ]) AS_IF([$EGREP __gnu_objc_personality_seh0 \ conftest.$ac_objext >/dev/null], [ exception_type="SEH" ]) case $exception_type in DWARF) AC_DEFINE(HAVE_DWARF_EXCEPTIONS, 1, [Whether DWARF exceptions are used]) ;; SjLj) AC_DEFINE(HAVE_SJLJ_EXCEPTIONS, 1, [Whether SjLj exceptions are used]) ;; SEH) AC_DEFINE(HAVE_SEH_EXCEPTIONS, 1, [Whether SEH exceptions are used]) ;; *) AC_MSG_RESULT(unknown) AC_MSG_ERROR([Exception type not detected!]) ;; esac AC_MSG_RESULT($exception_type) ], [ AC_MSG_RESULT(exceptions unavailable!) AC_MSG_ERROR([Exceptions not accepted by compiler!]) ]) ;; "Apple runtime") AC_DEFINE(OF_APPLE_RUNTIME, 1, [Whether we use the Apple ObjC runtime]) AC_CHECK_LIB(objc, objc_msgSend, [ LIBS="-lobjc $LIBS" ], [ AC_MSG_ERROR([libobjc not found!]) ]) ;; esac AC_CHECK_FUNC(objc_constructInstance, [], [ AC_SUBST(INSTANCE_M, "instance.m") ]) AC_CHECK_FUNC(objc_autoreleasePoolPush, [], [ AC_SUBST(AUTORELEASE_M, "autorelease.m") ]) AC_CHECK_FUNC(objc_enumerationMutation, [ AC_DEFINE(HAVE_OBJC_ENUMERATIONMUTATION, 1, [Whether we have objc_enumerationMutation()]) ]) case "$host_os" in darwin*) AC_SUBST(LDFLAGS_REEXPORT, ["-Wl,-reexport-lobjfw"]) AS_IF([test x"$objc_runtime" = x"Apple runtime"], [ AC_SUBST(REEXPORT_LIBOBJC, ["-Wl,-reexport-lobjc"]) ]) ;; esac AC_C_BIGENDIAN([ AC_DEFINE(OF_BIG_ENDIAN, 1, [Whether we are big endian]) ]) AS_IF([test x"$ac_cv_c_bigendian" = x"universal"], [ AC_DEFINE(OF_UNIVERSAL, 1, [Whether we are building a universal binary]) ]) 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)0)" ]) AC_DEFINE_UNQUOTED(SIZE_MAX, $size_max, [Maximum value for size_t]) ]) AC_CHECK_TYPE(max_align_t, [AC_DEFINE(OF_HAVE_MAX_ALIGN_T, 1, [Whether we have max_align_t])]) AC_CHECK_HEADER(stdnoreturn.h, [AC_DEFINE(OF_HAVE_STDNORETURN_H, 1, [Whether we have stdnoreturn.h])]) AC_CHECK_SIZEOF(float) AC_CHECK_SIZEOF(double) AS_IF([test x"$ac_cv_sizeof_float" != x"4" -o x"$ac_cv_sizeof_double" != x"8"], [AC_MSG_ERROR( [Floating point implementation does not conform to IEEE 754!])]) AC_MSG_CHECKING(for floating point endianess) fp_endianess="unknown" AS_IF([test x"$ac_cv_c_bigendian" != x"universal"], [ AC_TRY_COMPILE([ double endianess = 2.993700760838795055656993580068609688772747263874402942272934826871811872228512759832626847251963763755836687759498519784550143745834860002945223766052808125982053455555265216112722718870586961456110693379343178124592311441022662940307099598578775368547768968914916965731708568179631324904813506101190853720749196062963892799499230635163056742330563321122389331703618066046034494287335316842529021563862331183541255013987734473643350285400060357711238514186776429325214739886098119655678483017894951556639821088508565036657794343031121375178126860889964700274558728491825977274341798997758923017217660272136611938897932105874133412726223468780517578125e-259; ], [ ], [ AS_IF([$EGREP BigEnd conftest.$ac_objext >/dev/null], [ AC_DEFINE(OF_FLOAT_BIG_ENDIAN, 1, [Whether floats are big endian]) fp_endianess="big endian" ], [ AS_IF([$EGREP dnEgiB conftest.$ac_objext >/dev/null], [ fp_endianess="little endian" ]) ]) ]) ], [ fp_endianess="universal" ]) AC_MSG_RESULT($fp_endianess) AS_IF([test x"$fp_endianess" = x"unknown"], [ AC_MSG_ERROR( [Floating point implementation does not conform to IEEE 754!])]) case "$host" in arm*) AC_MSG_CHECKING(if VFP2 or above is available) AC_TRY_COMPILE([], [ __asm__("fstmfdd sp!, {d0-d7}"); ], [ AC_DEFINE(HAVE_VFP2, 1, [Whether we have VFP2 or above]) AC_MSG_RESULT(yes) ], [ AC_MSG_RESULT(no) ]) ;; esac AC_CHECK_FUNCS(strerror_r) AC_CHECK_LIB(m, fmod, LIBS="$LIBS -lm") AC_CHECK_FUNC(asprintf, [ case "$host" in *-psp-*) dnl asprintf is broken on the PSP, but snprintf works. have_asprintf="no" ac_cv_snprintf_useful_ret="yes" ;; *) have_asprintf="yes" AC_DEFINE(HAVE_ASPRINTF, 1, [Whether we have asprintf()]) ;; esac ], [ have_asprintf="no" AC_MSG_CHECKING(whether snprintf returns something useful) AC_CACHE_VAL(ac_cv_snprintf_useful_ret, [ AC_TRY_RUN([ #include <stdio.h> int main() { return (snprintf(NULL, 0, "asd") == 3 ? 0 : 1); } ], [ ac_cv_snprintf_useful_ret="yes" ], [ ac_cv_snprintf_useful_ret="no" ], [ ac_cv_snprintf_useful_ret="no" ]) ]) AC_MSG_RESULT($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_FUNCS([arc4random random], break) AC_CHECK_LIB(dl, dlopen, LIBS="$LIBS -ldl") AC_CHECK_HEADERS(dlfcn.h) case "$host_os" in netbsd*) dnl dladdr exists on NetBSD, but it is completely broken. dnl When using it with code that uses __thread, it freezes the dnl process so that it has to be killed using SIGKILL. dnl When disabling __thread, it doesn't freeze, but all symbols dnl are wrong. ;; *) AC_CHECK_FUNCS(dladdr) ;; esac AC_ARG_ENABLE(threads, AS_HELP_STRING([--disable-threads], [disable thread support])) AS_IF([test x"$enable_threads" != x"no"], [ case "$host_os" in mingw*) AC_MSG_CHECKING(for threads) AC_MSG_RESULT(WinAPI) ;; *) ACX_PTHREAD([ CPPLAGS="$CPPFLAGS $PTHREAD_CFLAGS" LIBS="$LIBS $PTHREAD_LIBS" AC_DEFINE(OF_HAVE_PTHREADS, 1, [Whether we have pthreads]) AC_TRY_COMPILE([ #include <pthread.h> ], [ pthread_mutexattr_t attr; pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE); ], [ AC_DEFINE(OF_HAVE_RECURSIVE_PTHREAD_MUTEXES, 1, [If pthread mutexes can be recursive]) ]) AC_CHECK_FUNC(pthread_spin_lock, [ have_spinlocks="yes" AC_DEFINE(OF_HAVE_PTHREAD_SPINLOCKS, 1, [Whether we have pthread spinlocks]) ]) AC_CHECK_FUNC(sched_yield, [ AC_DEFINE(OF_HAVE_SCHED_YIELD, 1, [Whether we have sched_yield()]) ]) AC_CHECK_HEADERS(pthread_np.h) AC_CHECK_FUNCS(pthread_set_name_np pthread_setname_np, break) ], [ AC_MSG_ERROR(No supported threads found!) ]) ;; esac AC_DEFINE(OF_HAVE_THREADS, 1, [Whether we have threads]) AC_SUBST(USE_SRCS_THREADS, '${SRCS_THREADS}') AC_ARG_ENABLE(compiler-tls, AS_HELP_STRING([--disable-compiler-tls], [disable compiler thread local storage])) AS_IF([test x"$enable_compiler_tls" != x"no"], [ AC_CHECK_HEADERS(threads.h, [ AC_DEFINE(OF_HAVE_THREADS_H, 1, [Whether we have threads.h]) ]) AC_MSG_CHECKING(whether _Thread_local works) AC_TRY_LINK([ static _Thread_local int x = 0; ], [ x++; ], [ AS_IF([test x"$enable_shared" != x"no"], [ old_OBJCFLAGS="$OBJCFLAGS" OBJCFLAGS="$OBJCFLAGS -fPIC" AC_TRY_COMPILE([ static _Thread_local int x = 0; ], [ x++; ], [ AC_MSG_RESULT(yes) AC_DEFINE(OF_HAVE__THREAD_LOCAL, 1, [Whether _Thread_local works]) ], [ AC_MSG_RESULT(no) ]) OBJCFLAGS="$old_OBJCFLAGS" ], [ AC_MSG_RESULT(yes) AC_DEFINE(OF_HAVE__THREAD_LOCAL, 1, [Whether _Thread_local works]) ]) ], [ AC_MSG_RESULT(no) ]) AC_MSG_CHECKING(whether __thread works) AC_TRY_LINK([ /* It seems __thread is buggy with GCC 4.1 */ #if __GNUC__ == 4 && __GNUC_MINOR__ < 2 # error buggy #endif __thread int x = 0; ], [ x++; ], [ AS_IF([test x"$enable_shared" != x"no"], [ old_OBJCFLAGS="$OBJCFLAGS" OBJCFLAGS="$OBJCFLAGS -fPIC" AC_TRY_COMPILE([ __thread int x = 0; ], [ x++; ], [ AC_MSG_RESULT(yes) AC_DEFINE(OF_HAVE___THREAD, 1, [Whether __thread works]) ], [ AC_MSG_RESULT(no) ]) OBJCFLAGS="$old_OBJCFLAGS" ], [ AC_MSG_RESULT(yes) AC_DEFINE(OF_HAVE___THREAD, 1, [Whether __thread works]) ]) ], [ AC_MSG_RESULT(no) ]) ]) atomic_ops="none" AC_MSG_CHECKING(whether __sync_* works) AC_TRY_LINK([#include <stdint.h>], [ int32_t i, j; if (__sync_add_and_fetch(&i, 1)) j = __sync_sub_and_fetch(&i, 1); while (!__sync_bool_compare_and_swap(&i, 0, 1)); ], [ AC_MSG_RESULT(yes) atomic_ops="GCC builtins" AC_DEFINE(OF_HAVE_GCC_ATOMIC_OPS, 1, [Whether GCC atomic operations are available]) ], [ AC_MSG_RESULT(no) ]) AC_MSG_CHECKING(whether we have an atomic ops assembly implementation) AC_EGREP_CPP(yes, [ #if defined(__GNUC__) && (defined(__i386__) || \ defined(__x86_64__) || defined(__amd64__)) || \ defined(__ppc__) yes #endif ], [ AC_MSG_RESULT(yes) test x"$atomic_ops" = x"none" && \ atomic_ops="assembly implementation" ], [ AC_MSG_RESULT(no) ]) AC_CHECK_HEADER(libkern/OSAtomic.h, [ test x"$atomic_ops" = x"none" && atomic_ops="libkern/OSAtomic.h" AC_DEFINE(OF_HAVE_OSATOMIC, 1, [Whether we have libkern/OSAtomic.h]) ]) ], [ dnl We can only have one thread - therefore everything is atomic atomic_ops="not needed" ]) AC_MSG_CHECKING(for atomic operations) AS_IF([test x"$atomic_ops" != x"none"], [ AC_DEFINE(OF_HAVE_ATOMIC_OPS, 1, [Whether we have atomic operations]) AC_SUBST(ATOMIC_H, "atomic.h") ]) AC_MSG_RESULT($atomic_ops) AC_ARG_ENABLE(files, AS_HELP_STRING([--disable-files], [disable file support])) AS_IF([test x"$enable_files" != x"no"], [ AC_DEFINE(OF_HAVE_FILES, 1, [Whether we have files]) AC_SUBST(USE_SRCS_FILES, '${SRCS_FILES}') AC_SUBST(OFHASH, "ofhash") AC_SUBST(OFZIP, "ofzip") AC_CHECK_TYPE(off64_t, [ AC_DEFINE(OF_HAVE_OFF64_T, 1, [Whether we have off64_t]) ]) AC_CHECK_FUNCS(readdir_r) ]) AC_CHECK_FUNCS([sysconf gmtime_r localtime_r nanosleep lstat]) AC_CHECK_HEADERS([pwd.h grp.h]) AC_CHECK_FUNC(chmod, [ AC_DEFINE(OF_HAVE_CHMOD, 1, [Whether we have chmod()]) ]) AC_CHECK_FUNC(chown, [ AC_DEFINE(OF_HAVE_CHOWN, 1, [Whether we have chown()]) ]) AC_CHECK_FUNC(link, [ AC_DEFINE(OF_HAVE_LINK, 1, [Whether we have link()]) ]) AC_CHECK_FUNC(symlink, [ AC_DEFINE(OF_HAVE_SYMLINK, 1, [Whether we have symlink()]) ]) AC_CHECK_FUNC(pipe, [ AC_DEFINE(OF_HAVE_PIPE, 1, [Whether we have pipe()]) ]) AC_ARG_ENABLE(sockets, AS_HELP_STRING([--disable-sockets], [disable socket support])) AS_IF([test x"$enable_sockets" != x"no"], [ AC_DEFINE(OF_HAVE_SOCKETS, 1, [Whether we have sockets]) AC_SUBST(USE_SRCS_SOCKETS, '${SRCS_SOCKETS}') AC_CHECK_LIB(socket, socket, LIBS="$LIBS -lsocket") AC_CHECK_LIB(network, socket, LIBS="$LIBS -lnetwork") AC_CHECK_LIB(ws2_32, main, LIBS="$LIBS -lws2_32") AC_CHECK_HEADER(sys/socket.h, [ AC_DEFINE(OF_HAVE_SYS_SOCKET_H, 1, [Whether we have sys/socket.h]) ]) AC_CHECK_HEADERS(netinet/in.h, [ AC_DEFINE(OF_HAVE_NETINET_IN_H, 1, [Whether we have netinet/in.h]) ]) AC_CHECK_HEADERS([arpa/inet.h netdb.h]) AC_CHECK_FUNCS([fcntl paccept accept4]) AC_CHECK_FUNC(kqueue, [ AC_DEFINE(HAVE_KQUEUE, 1, [Whether we have kqueue]) AC_SUBST(OFKERNELEVENTOBSERVER_KQUEUE_M, "OFKernelEventObserver_kqueue.m") AC_CHECK_FUNCS(kqueue1) ]) AC_CHECK_HEADER(poll.h, [ AC_DEFINE(HAVE_POLL_H, 1, [Whether we have poll.h]) AC_SUBST(OFKERNELEVENTOBSERVER_POLL_M, "OFKernelEventObserver_poll.m") ]) AC_CHECK_HEADER(sys/select.h, [ AC_DEFINE(HAVE_SYS_SELECT_H, 1, [Whether we have sys/select.h]) AC_SUBST(OFKERNELEVENTOBSERVER_SELECT_M, "OFKernelEventObserver_select.m") ]) case "$host_os" in mingw*) AC_SUBST(OFKERNELEVENTOBSERVER_SELECT_M, "OFKernelEventObserver_select.m") ;; esac AS_IF([test x"$with_wii" = x"yes"], [ AC_SUBST(OFKERNELEVENTOBSERVER_POLL_M, "OFKernelEventObserver_poll.m") ]) 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 typedef unsigned char BOOL; # 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()]) AS_IF([test x"$enable_threads" != x"no"], [ AC_MSG_CHECKING(whether getaddrinfo is thread-safe) case "$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 AS_IF([test x"$have_threadsafe_getaddrinfo" = \ x"unknown"], [ AC_EGREP_CPP(yes, [ #ifndef _WIN32 # include <sys/types.h> # include <sys/socket.h> # include <netdb.h> #else # define _WIN32_WINNT 0x0501 # include <windows.h> # include <ws2tcpip.h> #endif #ifdef h_errno yes #end ], [ have_threadsafe_getaddrinfo="yes" ], [ have_threadsafe_getaddrinfo="no" ]) ]) AS_IF([test x"$have_threadsafe_getaddrinfo" = x"yes"], [ AC_DEFINE(HAVE_THREADSAFE_GETADDRINFO, 1, [Whether getaddrinfo is thread-safe]) ]) AC_MSG_RESULT($have_threadsafe_getaddrinfo) ]) ], [ AC_MSG_RESULT(no) ]) ]) AS_IF([test x"$enable_sockets" != x"no" -a x"$enable_threads" != x"no"], [ AC_SUBST(OFHTTPCLIENTTESTS_M, "OFHTTPClientTests.m") ]) AC_DEFUN([CHECK_BUILTIN_BSWAP], [ AC_MSG_CHECKING(for __builtin_bswap$1) AC_TRY_LINK([ #include <stdint.h> #include <stdio.h> #include <inttypes.h> #include <errno.h> ], [ uint$1_t i = errno; printf("%" PRIu$1, __builtin_bswap$1(i)); ], [ AC_MSG_RESULT(yes) AC_DEFINE(OF_HAVE_BUILTIN_BSWAP$1, 1, [Whether we have __builtin_bswap$1]) ], [ AC_MSG_RESULT(no) ]) ]) CHECK_BUILTIN_BSWAP(16) CHECK_BUILTIN_BSWAP(32) CHECK_BUILTIN_BSWAP(64) case "$host" in arm*-apple-darwin*) have_processes="no" ;; *-*-mingw*) have_processes="yes" ;; *-*-msdosdjgpp*) have_processes="no" ;; *) AC_CHECK_FUNCS([fork dup2 execvp kill _exit], [ AS_IF([test x"$ac_cv_func_fork" = x"yes" \ -a x"$ac_cv_func_pipe" = x"yes" \ -a x"$ac_cv_func_dup2" = x"yes" \ -a x"$ac_cv_func_execvp" = x"yes" \ -a x"$ac_cv_func_kill" = x"yes" \ -a x"$ac_cv_func__exit" = x"yes"], [ have_processes="yes" ]) ], [ break ]) AC_CHECK_FUNCS(posix_spawnp) AS_IF([test x"$ac_cv_func_posix_spawnp" = x"yes" \ -a x"$ac_cv_func_kill" = x"yes"], [ have_processes="yes" AC_CHECK_HEADERS(spawn.h) ]) ;; esac AS_IF([test x"$have_processes" = x"yes"], [ AC_SUBST(OFPROCESS_M, "OFProcess.m") AC_DEFINE(OF_HAVE_PROCESSES, 1, [Whether we have processes]) ]) AS_IF([test x"$objc_runtime" = x"Apple runtime"], [ AC_CHECK_HEADER(Foundation/NSObject.h, [ AC_SUBST(FOUNDATION_COMPAT_M, "foundation-compat.m") AC_SUBST(BRIDGE, "bridge") AS_IF([test x"$enable_shared" != x"no"], [ AC_SUBST(OBJFW_BRIDGE_SHARED_LIB, "${LIB_PREFIX}objfw-bridge${LIB_SUFFIX}") ]) AS_IF([test x"$enable_static" = x"yes" \ -o x"$enable_shared" = x"no"], [ AC_SUBST(OBJFW_BRIDGE_STATIC_LIB, "libobjfw-bridge.a") ]) ]) ]) case "$host" in arm*-apple-darwin*) AC_DEFINE(OF_IOS, 1, [Whether we compile for iOS]) ;; esac AS_IF([test x"$GOBJC" = x"yes"], [ OBJCFLAGS="$OBJCFLAGS -Wwrite-strings -Wpointer-arith -Werror" AC_MSG_CHECKING(whether we have GCC bug objc/27438) AC_TRY_COMPILE([ @interface OFConstantString { struct objc_class *isa; const char *string; unsigned long size; } @end void *_OFConstantStringClassReference; ], [ OFConstantString *test = @""; (void)test; /* Get rid of unused variable warning */ ], [ AC_MSG_RESULT(no) ], [ AC_MSG_RESULT([yes, adding -Wno-unused-variable]) OBJCFLAGS="$OBJCFLAGS -Wno-unused-variable" AC_SUBST(NO_WARN_UNUSED, "-Wno-unused-variable") ]) AC_MSG_CHECKING(whether we need -Wno-strict-aliasing due to GCC bugs) AC_TRY_COMPILE([ @interface Foo { struct objc_class *isa; } @end static struct { struct objc_class *isa; } object; ], [ Foo *test = (Foo*)&object; (void)test; /* Get rid of unused variable warning */ ], [ AC_MSG_RESULT(no) ], [ AC_MSG_RESULT(yes) OBJCFLAGS="$OBJCFLAGS -Wno-strict-aliasing" ]) old_OBJCFLAGS="$OBJCFLAGS" OBJCFLAGS="$OBJCFLAGS -Wcast-align" AC_MSG_CHECKING(whether -Wcast-align is buggy) AC_TRY_COMPILE([ #ifdef __has_attribute # if __has_attribute(objc_root_class) __attribute__((__objc_root_class__)) # endif #endif @interface Foo { struct objc_class *_isa; } @end @implementation Foo - (void)foo { struct objc_class *c = _isa; (void)c; } @end ], [ ], [ AC_MSG_RESULT(no) ], [ AC_MSG_RESULT(yes) OBJCFLAGS="$old_OBJCFLAGS" ]) old_OBJCFLAGS="$OBJCFLAGS" OBJCFLAGS="$OBJCFLAGS -Wdocumentation" AC_MSG_CHECKING(whether -Wdocumentation works correctly) AC_TRY_COMPILE([ /*! * @class Test conftest.m conftest.m */ @interface Test @end ], [ ], [ AC_MSG_RESULT(yes) ], [ AC_MSG_RESULT(no) OBJCFLAGS="$old_OBJCFLAGS" ]) old_OBJCFLAGS="$OBJCFLAGS" OBJCFLAGS="$OBJCFLAGS -pedantic" AC_MSG_CHECKING(whether -pedantic is buggy) AC_TRY_COMPILE([ #import <stdlib.h> #ifdef __has_attribute # if __has_attribute(objc_root_class) __attribute__((__objc_root_class__)) # endif #endif @interface Foo { void *foo; } @end @interface Bar: Foo @end ], [], [ AC_MSG_RESULT(no) ], [ AC_MSG_RESULT(yes) OBJCFLAGS="$old_OBJCFLAGS" ]) ]) AS_IF([test x"$cross_compiling" = x"yes"], [ AC_SUBST(BIN_PREFIX, "${host_alias}-") case "$host" in *-*-mingw*) AC_CHECK_PROG(WINE, wine, wine) AS_IF([test x"$WINE" != x""], [ AC_SUBST(RUN_TESTS, "run") AC_SUBST(TEST_LAUNCHER, "$WINE") ]) ;; esac AS_IF([test x"$with_wii" = x"yes"], [ dnl Keep this lowercase, as WIILOAD is a variable used by dnl wiiload and thus likely already set by the user to something dnl that is not the path of the wiiload binary. AC_CHECK_PROG(wiiload, wiiload, wiiload) AS_IF([test x"$wiiload" != x""], [ AC_SUBST(RUN_TESTS, "run") AC_SUBST(TEST_LAUNCHER, "$wiiload") ]) ]) ], [ AC_SUBST(RUN_TESTS, "run") ]) 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) dnl We use the ObjC compiler as our assembler AC_SUBST(AS, $OBJC) AC_SUBST(ASFLAGS) AC_SUBST(AS_DEPENDS, '${OBJC_DEPENDS}') AC_SUBST(TESTS_LIBS) AC_CONFIG_FILES([ buildsys.mk extra.mk utils/objfw-config support/Info.plist support/Bridge-Info.plist ]) AC_CONFIG_HEADERS([config.h src/objfw-defs.h]) AC_OUTPUT AS_IF([test x"$old_compiler" = x"yes"], [ echo printf " ** Note: Your compiler does not seem to " echo "accept -fobjc-runtime=objfw." printf " ** To get optimal performance, you should install " echo "Clang >= 3.2" printf " ** (or the latest Clang release to be able to use all " echo "features)." echo ]) AS_IF([test x"$enable_threads" != x"no" -a x"$atomic_ops" = x"none" \ -a x"$have_spinlocks" != x"yes"], [ echo printf " ** Warning: You have enabled threads, but neither atomic " echo "operations nor" printf " ** spinlocks are available. Expect *very* poor performance, " echo "as a mutex will" printf " ** be locked for every retain and release! If you don't " echo "need threads, try" echo " ** --disable-threads to work around this problem." echo ])