806 lines
21 KiB
Text
806 lines
21 KiB
Text
dnl configure.in for libevent
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dnl Copyright 2000-2007 Niels Provos
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dnl Copyright 2007-2012 Niels Provos and Nick Mathewson
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dnl
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dnl See LICENSE for copying information.
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dnl
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dnl Original version Dug Song <dugsong@monkey.org>
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AC_PREREQ(2.59c)
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AC_INIT(event.c)
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AC_CONFIG_MACRO_DIR([m4])
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AM_INIT_AUTOMAKE(libevent,2.0.21-stable)
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AM_CONFIG_HEADER(config.h)
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AC_DEFINE(NUMERIC_VERSION, 0x02001500, [Numeric representation of the version])
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dnl Initialize prefix.
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if test "$prefix" = "NONE"; then
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prefix="/usr/local"
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fi
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AC_CANONICAL_BUILD
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AC_CANONICAL_HOST
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dnl the 'build' machine is where we run configure and compile
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dnl the 'host' machine is where the resulting stuff runs.
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case "$host_os" in
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osf5*)
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CFLAGS="$CFLAGS -D_OSF_SOURCE"
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;;
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esac
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dnl Checks for programs.
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AC_PROG_CC
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AM_PROG_CC_C_O
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AC_PROG_SED
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AC_PROG_INSTALL
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AC_PROG_LN_S
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AC_PROG_MKDIR_P
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AC_PROG_GCC_TRADITIONAL
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# We need to test for at least gcc 2.95 here, because older versions don't
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# have -fno-strict-aliasing
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
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#if !defined(__GNUC__) || (__GNUC__ < 2) || (__GNUC__ == 2 && __GNUC_MINOR__ < 95)
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#error
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#endif])], have_gcc295=yes, have_gcc295=no)
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if test "$GCC" = "yes" ; then
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# Enable many gcc warnings by default...
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CFLAGS="$CFLAGS -Wall"
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# And disable the strict-aliasing optimization, since it breaks
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# our sockaddr-handling code in strange ways.
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if test x$have_gcc295 = xyes; then
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CFLAGS="$CFLAGS -fno-strict-aliasing"
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fi
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fi
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# OS X Lion started deprecating the system openssl. Let's just disable
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# all deprecation warnings on OS X.
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case "$host_os" in
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darwin*)
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CFLAGS="$CFLAGS -Wno-deprecated-declarations"
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;;
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esac
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AC_ARG_ENABLE(gcc-warnings,
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AS_HELP_STRING(--enable-gcc-warnings, enable verbose warnings with GCC))
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AC_ARG_ENABLE(thread-support,
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AS_HELP_STRING(--disable-thread-support, disable support for threading),
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[], [enable_thread_support=yes])
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AC_ARG_ENABLE(malloc-replacement,
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AS_HELP_STRING(--disable-malloc-replacement, disable support for replacing the memory mgt functions),
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[], [enable_malloc_replacement=yes])
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AC_ARG_ENABLE(openssl,
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AS_HELP_STRING(--disable-openssl, disable support for openssl encryption),
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[], [enable_openssl=yes])
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AC_ARG_ENABLE(debug-mode,
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AS_HELP_STRING(--disable-debug-mode, disable support for running in debug mode),
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[], [enable_debug_mode=yes])
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AC_ARG_ENABLE([libevent-install],
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AS_HELP_STRING([--disable-libevent-install, disable installation of libevent]),
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[], [enable_libevent_install=yes])
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AC_ARG_ENABLE([libevent-regress],
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AS_HELP_STRING([--disable-libevent-regress, skip regress in make check]),
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[], [enable_libevent_regress=yes])
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AC_ARG_ENABLE([function-sections],
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AS_HELP_STRING([--enable-function-sections, make static library allow smaller binaries with --gc-sections]),
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[], [enable_function_sections=no])
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AC_PROG_LIBTOOL
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dnl Uncomment "AC_DISABLE_SHARED" to make shared librraries not get
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dnl built by default. You can also turn shared libs on and off from
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dnl the command line with --enable-shared and --disable-shared.
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dnl AC_DISABLE_SHARED
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AC_SUBST(LIBTOOL_DEPS)
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AM_CONDITIONAL([BUILD_REGRESS], [test "$enable_libevent_regress" = "yes"])
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dnl Checks for libraries.
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AC_SEARCH_LIBS([inet_ntoa], [nsl])
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AC_SEARCH_LIBS([socket], [socket])
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AC_SEARCH_LIBS([inet_aton], [resolv])
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AC_SEARCH_LIBS([clock_gettime], [rt])
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AC_SEARCH_LIBS([sendfile], [sendfile])
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dnl - check if the macro WIN32 is defined on this compiler.
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dnl - (this is how we check for a windows version of GCC)
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AC_MSG_CHECKING(for WIN32)
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AC_TRY_COMPILE(,
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[
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#ifndef WIN32
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die horribly
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#endif
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],
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bwin32=true; AC_MSG_RESULT(yes),
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bwin32=false; AC_MSG_RESULT(no),
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)
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dnl - check if the macro __CYGWIN__ is defined on this compiler.
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dnl - (this is how we check for a cygwin version of GCC)
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AC_MSG_CHECKING(for CYGWIN)
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AC_TRY_COMPILE(,
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[
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#ifndef __CYGWIN__
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die horribly
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#endif
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],
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cygwin=true; AC_MSG_RESULT(yes),
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cygwin=false; AC_MSG_RESULT(no),
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)
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AC_CHECK_HEADERS([zlib.h])
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if test "x$ac_cv_header_zlib_h" = "xyes"; then
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dnl Determine if we have zlib for regression tests
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dnl Don't put this one in LIBS
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save_LIBS="$LIBS"
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LIBS=""
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ZLIB_LIBS=""
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have_zlib=no
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AC_SEARCH_LIBS([inflateEnd], [z],
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[have_zlib=yes
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ZLIB_LIBS="$LIBS"
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AC_DEFINE(HAVE_LIBZ, 1, [Define if the system has zlib])])
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LIBS="$save_LIBS"
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AC_SUBST(ZLIB_LIBS)
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fi
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AM_CONDITIONAL(ZLIB_REGRESS, [test "$have_zlib" = "yes"])
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dnl See if we have openssl. This doesn't go in LIBS either.
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if test "$bwin32" = true; then
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EV_LIB_WS32=-lws2_32
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EV_LIB_GDI=-lgdi32
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else
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EV_LIB_WS32=
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EV_LIB_GDI=
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fi
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AC_SUBST(EV_LIB_WS32)
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AC_SUBST(EV_LIB_GDI)
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AC_SUBST(OPENSSL_LIBADD)
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AC_CHECK_HEADERS([openssl/bio.h])
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if test "$enable_openssl" = "yes"; then
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save_LIBS="$LIBS"
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LIBS=""
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OPENSSL_LIBS=""
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have_openssl=no
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AC_SEARCH_LIBS([SSL_new], [ssl],
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[have_openssl=yes
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OPENSSL_LIBS="$LIBS -lcrypto $EV_LIB_GDI $EV_LIB_WS32 $OPENSSL_LIBADD"
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AC_DEFINE(HAVE_OPENSSL, 1, [Define if the system has openssl])],
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[have_openssl=no],
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[-lcrypto $EV_LIB_GDI $EV_LIB_WS32 $OPENSSL_LIBADD])
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LIBS="$save_LIBS"
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AC_SUBST(OPENSSL_LIBS)
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fi
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dnl Checks for header files.
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AC_HEADER_STDC
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AC_CHECK_HEADERS([fcntl.h stdarg.h inttypes.h stdint.h stddef.h poll.h unistd.h sys/epoll.h sys/time.h sys/queue.h sys/event.h sys/param.h sys/ioctl.h sys/select.h sys/devpoll.h port.h netinet/in.h netinet/in6.h sys/socket.h sys/uio.h arpa/inet.h sys/eventfd.h sys/mman.h sys/sendfile.h sys/wait.h netdb.h])
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AC_CHECK_HEADERS([sys/stat.h])
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AC_CHECK_HEADERS(sys/sysctl.h, [], [], [
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#ifdef HAVE_SYS_PARAM_H
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#include <sys/param.h>
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#endif
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])
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if test "x$ac_cv_header_sys_queue_h" = "xyes"; then
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AC_MSG_CHECKING(for TAILQ_FOREACH in sys/queue.h)
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AC_EGREP_CPP(yes,
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[
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#include <sys/queue.h>
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#ifdef TAILQ_FOREACH
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yes
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#endif
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], [AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_TAILQFOREACH, 1,
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[Define if TAILQ_FOREACH is defined in <sys/queue.h>])],
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AC_MSG_RESULT(no)
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)
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fi
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if test "x$ac_cv_header_sys_time_h" = "xyes"; then
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AC_MSG_CHECKING(for timeradd in sys/time.h)
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AC_EGREP_CPP(yes,
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[
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#include <sys/time.h>
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#ifdef timeradd
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yes
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#endif
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], [ AC_DEFINE(HAVE_TIMERADD, 1,
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[Define if timeradd is defined in <sys/time.h>])
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AC_MSG_RESULT(yes)] ,AC_MSG_RESULT(no)
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)
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fi
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if test "x$ac_cv_header_sys_time_h" = "xyes"; then
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AC_MSG_CHECKING(for timercmp in sys/time.h)
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AC_EGREP_CPP(yes,
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[
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#include <sys/time.h>
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#ifdef timercmp
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yes
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#endif
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], [ AC_DEFINE(HAVE_TIMERCMP, 1,
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[Define if timercmp is defined in <sys/time.h>])
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AC_MSG_RESULT(yes)] ,AC_MSG_RESULT(no)
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)
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fi
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if test "x$ac_cv_header_sys_time_h" = "xyes"; then
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AC_MSG_CHECKING(for timerclear in sys/time.h)
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AC_EGREP_CPP(yes,
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[
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#include <sys/time.h>
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#ifdef timerclear
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yes
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#endif
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], [ AC_DEFINE(HAVE_TIMERCLEAR, 1,
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[Define if timerclear is defined in <sys/time.h>])
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AC_MSG_RESULT(yes)] ,AC_MSG_RESULT(no)
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)
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fi
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if test "x$ac_cv_header_sys_time_h" = "xyes"; then
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AC_MSG_CHECKING(for timerisset in sys/time.h)
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AC_EGREP_CPP(yes,
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[
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#include <sys/time.h>
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#ifdef timerisset
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yes
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#endif
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], [ AC_DEFINE(HAVE_TIMERISSET, 1,
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[Define if timerisset is defined in <sys/time.h>])
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AC_MSG_RESULT(yes)] ,AC_MSG_RESULT(no)
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)
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fi
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if test "x$ac_cv_header_sys_sysctl_h" = "xyes"; then
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AC_CHECK_DECLS([CTL_KERN, KERN_RANDOM, RANDOM_UUID, KERN_ARND], [], [],
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[[#include <sys/types.h>
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#include <sys/sysctl.h>]]
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)
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fi
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AM_CONDITIONAL(BUILD_WIN32, test x$bwin32 = xtrue)
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AM_CONDITIONAL(BUILD_CYGWIN, test x$cygwin = xtrue)
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AM_CONDITIONAL(BUILD_WITH_NO_UNDEFINED, test x$bwin32 = xtrue || test x$cygwin = xtrue)
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if test x$bwin32 = xtrue; then
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AC_SEARCH_LIBS([getservbyname],[ws2_32])
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fi
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dnl Checks for typedefs, structures, and compiler characteristics.
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AC_C_CONST
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AC_C_INLINE
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AC_HEADER_TIME
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dnl Checks for library functions.
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AC_CHECK_FUNCS([gettimeofday vasprintf fcntl clock_gettime strtok_r strsep])
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AC_CHECK_FUNCS([getnameinfo strlcpy inet_ntop inet_pton signal sigaction strtoll inet_aton pipe eventfd sendfile mmap splice arc4random arc4random_buf issetugid geteuid getegid getprotobynumber setenv unsetenv putenv sysctl])
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AC_CHECK_FUNCS([umask])
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AC_CACHE_CHECK(
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[for getaddrinfo],
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[libevent_cv_getaddrinfo],
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[AC_LINK_IFELSE(
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[AC_LANG_PROGRAM(
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[[
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#ifdef HAVE_NETDB_H
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#include <netdb.h>
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#endif
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]],
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[[
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getaddrinfo;
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]]
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)],
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[libevent_cv_getaddrinfo=yes],
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[libevent_cv_getaddrinfo=no]
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)]
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)
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if test "$libevent_cv_getaddrinfo" = "yes" ; then
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AC_DEFINE([HAVE_GETADDRINFO], [1], [Do we have getaddrinfo()?])
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else
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AC_CHECK_FUNCS([getservbyname])
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# Check for gethostbyname_r in all its glorious incompatible versions.
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# (This is cut-and-pasted from Tor, which based its logic on
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# Python's configure.in.)
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AH_TEMPLATE(HAVE_GETHOSTBYNAME_R,
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[Define this if you have any gethostbyname_r()])
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AC_CHECK_FUNC(gethostbyname_r, [
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AC_MSG_CHECKING([how many arguments gethostbyname_r() wants])
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OLD_CFLAGS=$CFLAGS
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CFLAGS="$CFLAGS $MY_CPPFLAGS $MY_THREAD_CPPFLAGS $MY_CFLAGS"
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
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#include <netdb.h>
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], [[
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char *cp1, *cp2;
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struct hostent *h1, *h2;
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int i1, i2;
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(void)gethostbyname_r(cp1,h1,cp2,i1,&h2,&i2);
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]])],[
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AC_DEFINE(HAVE_GETHOSTBYNAME_R)
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AC_DEFINE(HAVE_GETHOSTBYNAME_R_6_ARG, 1,
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[Define this if gethostbyname_r takes 6 arguments])
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AC_MSG_RESULT(6)
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], [
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AC_TRY_COMPILE([
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#include <netdb.h>
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], [
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char *cp1, *cp2;
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struct hostent *h1;
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int i1, i2;
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(void)gethostbyname_r(cp1,h1,cp2,i1,&i2);
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], [
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AC_DEFINE(HAVE_GETHOSTBYNAME_R)
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AC_DEFINE(HAVE_GETHOSTBYNAME_R_5_ARG, 1,
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[Define this if gethostbyname_r takes 5 arguments])
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AC_MSG_RESULT(5)
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], [
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AC_TRY_COMPILE([
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#include <netdb.h>
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], [
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char *cp1;
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struct hostent *h1;
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struct hostent_data hd;
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(void) gethostbyname_r(cp1,h1,&hd);
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], [
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AC_DEFINE(HAVE_GETHOSTBYNAME_R)
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AC_DEFINE(HAVE_GETHOSTBYNAME_R_3_ARG, 1,
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[Define this if gethostbyname_r takes 3 arguments])
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AC_MSG_RESULT(3)
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], [
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AC_MSG_RESULT(0)
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])
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])
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])
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CFLAGS=$OLD_CFLAGS
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])
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fi
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AC_CHECK_SIZEOF(long)
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AC_MSG_CHECKING(for F_SETFD in fcntl.h)
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AC_EGREP_CPP(yes,
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[
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#define _GNU_SOURCE
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#include <fcntl.h>
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#ifdef F_SETFD
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yes
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#endif
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], [ AC_DEFINE(HAVE_SETFD, 1,
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[Define if F_SETFD is defined in <fcntl.h>])
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AC_MSG_RESULT(yes) ], AC_MSG_RESULT(no))
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needsignal=no
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haveselect=no
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if test x$bwin32 != xtrue; then
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AC_CHECK_FUNCS(select, [haveselect=yes], )
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if test "x$haveselect" = "xyes" ; then
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needsignal=yes
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fi
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fi
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AM_CONDITIONAL(SELECT_BACKEND, [test "x$haveselect" = "xyes"])
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havepoll=no
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AC_CHECK_FUNCS(poll, [havepoll=yes], )
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if test "x$havepoll" = "xyes" ; then
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needsignal=yes
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fi
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AM_CONDITIONAL(POLL_BACKEND, [test "x$havepoll" = "xyes"])
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havedevpoll=no
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if test "x$ac_cv_header_sys_devpoll_h" = "xyes"; then
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AC_DEFINE(HAVE_DEVPOLL, 1,
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[Define if /dev/poll is available])
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fi
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AM_CONDITIONAL(DEVPOLL_BACKEND, [test "x$ac_cv_header_sys_devpoll_h" = "xyes"])
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havekqueue=no
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if test "x$ac_cv_header_sys_event_h" = "xyes"; then
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AC_CHECK_FUNCS(kqueue, [havekqueue=yes], )
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if test "x$havekqueue" = "xyes" ; then
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AC_MSG_CHECKING(for working kqueue)
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AC_TRY_RUN(
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#include <sys/types.h>
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#include <sys/time.h>
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#include <sys/event.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <fcntl.h>
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int
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main(int argc, char **argv)
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{
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int kq;
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int n;
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int fd[[2]];
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struct kevent ev;
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struct timespec ts;
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char buf[[8000]];
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if (pipe(fd) == -1)
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exit(1);
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if (fcntl(fd[[1]], F_SETFL, O_NONBLOCK) == -1)
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exit(1);
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while ((n = write(fd[[1]], buf, sizeof(buf))) == sizeof(buf))
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;
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if ((kq = kqueue()) == -1)
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exit(1);
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memset(&ev, 0, sizeof(ev));
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ev.ident = fd[[1]];
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ev.filter = EVFILT_WRITE;
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ev.flags = EV_ADD | EV_ENABLE;
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n = kevent(kq, &ev, 1, NULL, 0, NULL);
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if (n == -1)
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exit(1);
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read(fd[[0]], buf, sizeof(buf));
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ts.tv_sec = 0;
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ts.tv_nsec = 0;
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n = kevent(kq, NULL, 0, &ev, 1, &ts);
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if (n == -1 || n == 0)
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exit(1);
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exit(0);
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}, [AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_WORKING_KQUEUE, 1,
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[Define if kqueue works correctly with pipes])
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havekqueue=yes
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], AC_MSG_RESULT(no), AC_MSG_RESULT(no))
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fi
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fi
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AM_CONDITIONAL(KQUEUE_BACKEND, [test "x$havekqueue" = "xyes"])
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haveepollsyscall=no
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haveepoll=no
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AC_CHECK_FUNCS(epoll_ctl, [haveepoll=yes], )
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if test "x$haveepoll" = "xyes" ; then
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AC_DEFINE(HAVE_EPOLL, 1,
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[Define if your system supports the epoll system calls])
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needsignal=yes
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|
fi
|
|
if test "x$ac_cv_header_sys_epoll_h" = "xyes"; then
|
|
if test "x$haveepoll" = "xno" ; then
|
|
AC_MSG_CHECKING(for epoll system call)
|
|
AC_TRY_RUN(
|
|
#include <stdint.h>
|
|
#include <sys/param.h>
|
|
#include <sys/types.h>
|
|
#include <sys/syscall.h>
|
|
#include <sys/epoll.h>
|
|
#include <unistd.h>
|
|
|
|
int
|
|
epoll_create(int size)
|
|
{
|
|
return (syscall(__NR_epoll_create, size));
|
|
}
|
|
|
|
int
|
|
main(int argc, char **argv)
|
|
{
|
|
int epfd;
|
|
|
|
epfd = epoll_create(256);
|
|
exit (epfd == -1 ? 1 : 0);
|
|
}, [AC_MSG_RESULT(yes)
|
|
AC_DEFINE(HAVE_EPOLL, 1,
|
|
[Define if your system supports the epoll system calls])
|
|
needsignal=yes
|
|
have_epoll=yes
|
|
AC_LIBOBJ(epoll_sub)
|
|
], AC_MSG_RESULT(no), AC_MSG_RESULT(no))
|
|
fi
|
|
fi
|
|
AM_CONDITIONAL(EPOLL_BACKEND, [test "x$haveepoll" = "xyes"])
|
|
|
|
haveeventports=no
|
|
AC_CHECK_FUNCS(port_create, [haveeventports=yes], )
|
|
if test "x$haveeventports" = "xyes" ; then
|
|
AC_DEFINE(HAVE_EVENT_PORTS, 1,
|
|
[Define if your system supports event ports])
|
|
needsignal=yes
|
|
fi
|
|
AM_CONDITIONAL(EVPORT_BACKEND, [test "x$haveeventports" = "xyes"])
|
|
|
|
if test "x$bwin32" = "xtrue"; then
|
|
needsignal=yes
|
|
fi
|
|
|
|
AM_CONDITIONAL(SIGNAL_SUPPORT, [test "x$needsignal" = "xyes"])
|
|
|
|
AC_TYPE_PID_T
|
|
AC_TYPE_SIZE_T
|
|
AC_TYPE_SSIZE_T
|
|
|
|
AC_CHECK_TYPES([uint64_t, uint32_t, uint16_t, uint8_t, uintptr_t], , ,
|
|
[#ifdef HAVE_STDINT_H
|
|
#include <stdint.h>
|
|
#elif defined(HAVE_INTTYPES_H)
|
|
#include <inttypes.h>
|
|
#endif
|
|
#ifdef HAVE_SYS_TYPES_H
|
|
#include <sys/types.h>
|
|
#endif])
|
|
|
|
AC_CHECK_TYPES([fd_mask], , ,
|
|
[#ifdef HAVE_SYS_TYPES_H
|
|
#include <sys/types.h>
|
|
#endif
|
|
#ifdef HAVE_SYS_SELECT_H
|
|
#include <sys/select.h>
|
|
#endif])
|
|
|
|
AC_CHECK_SIZEOF(long long)
|
|
AC_CHECK_SIZEOF(long)
|
|
AC_CHECK_SIZEOF(int)
|
|
AC_CHECK_SIZEOF(short)
|
|
AC_CHECK_SIZEOF(size_t)
|
|
AC_CHECK_SIZEOF(void *)
|
|
|
|
AC_CHECK_TYPES([struct in6_addr, struct sockaddr_in6, sa_family_t, struct addrinfo, struct sockaddr_storage], , ,
|
|
[#define _GNU_SOURCE
|
|
#include <sys/types.h>
|
|
#ifdef HAVE_NETINET_IN_H
|
|
#include <netinet/in.h>
|
|
#endif
|
|
#ifdef HAVE_NETINET_IN6_H
|
|
#include <netinet/in6.h>
|
|
#endif
|
|
#ifdef HAVE_SYS_SOCKET_H
|
|
#include <sys/socket.h>
|
|
#endif
|
|
#ifdef HAVE_NETDB_H
|
|
#include <netdb.h>
|
|
#endif
|
|
#ifdef WIN32
|
|
#define WIN32_WINNT 0x400
|
|
#define _WIN32_WINNT 0x400
|
|
#define WIN32_LEAN_AND_MEAN
|
|
#if defined(_MSC_VER) && (_MSC_VER < 1300)
|
|
#include <winsock.h>
|
|
#else
|
|
#include <winsock2.h>
|
|
#include <ws2tcpip.h>
|
|
#endif
|
|
#endif
|
|
])
|
|
AC_CHECK_MEMBERS([struct in6_addr.s6_addr32, struct in6_addr.s6_addr16, struct sockaddr_in.sin_len, struct sockaddr_in6.sin6_len, struct sockaddr_storage.ss_family, struct sockaddr_storage.__ss_family], , ,
|
|
[#include <sys/types.h>
|
|
#ifdef HAVE_NETINET_IN_H
|
|
#include <netinet/in.h>
|
|
#endif
|
|
#ifdef HAVE_NETINET_IN6_H
|
|
#include <netinet/in6.h>
|
|
#endif
|
|
#ifdef HAVE_SYS_SOCKET_H
|
|
#include <sys/socket.h>
|
|
#endif
|
|
#ifdef WIN32
|
|
#define WIN32_WINNT 0x400
|
|
#define _WIN32_WINNT 0x400
|
|
#define WIN32_LEAN_AND_MEAN
|
|
#if defined(_MSC_VER) && (_MSC_VER < 1300)
|
|
#include <winsock.h>
|
|
#else
|
|
#include <winsock2.h>
|
|
#include <ws2tcpip.h>
|
|
#endif
|
|
#endif
|
|
])
|
|
|
|
AC_MSG_CHECKING([for socklen_t])
|
|
AC_TRY_COMPILE([
|
|
#include <sys/types.h>
|
|
#include <sys/socket.h>],
|
|
[socklen_t x;],
|
|
AC_MSG_RESULT([yes]),
|
|
[AC_MSG_RESULT([no])
|
|
AC_DEFINE(socklen_t, unsigned int,
|
|
[Define to unsigned int if you dont have it])]
|
|
)
|
|
|
|
AC_MSG_CHECKING([whether our compiler supports __func__])
|
|
AC_TRY_COMPILE([],
|
|
[ const char *cp = __func__; ],
|
|
AC_MSG_RESULT([yes]),
|
|
AC_MSG_RESULT([no])
|
|
AC_MSG_CHECKING([whether our compiler supports __FUNCTION__])
|
|
AC_TRY_COMPILE([],
|
|
[ const char *cp = __FUNCTION__; ],
|
|
AC_MSG_RESULT([yes])
|
|
AC_DEFINE(__func__, __FUNCTION__,
|
|
[Define to appropriate substitue if compiler doesnt have __func__]),
|
|
AC_MSG_RESULT([no])
|
|
AC_DEFINE(__func__, __FILE__,
|
|
[Define to appropriate substitue if compiler doesnt have __func__])))
|
|
|
|
|
|
# check if we can compile with pthreads
|
|
have_pthreads=no
|
|
if test x$bwin32 != xtrue && test "$enable_thread_support" != "no"; then
|
|
ACX_PTHREAD([
|
|
AC_DEFINE(HAVE_PTHREADS, 1,
|
|
[Define if we have pthreads on this system])
|
|
have_pthreads=yes])
|
|
CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
|
|
AC_CHECK_SIZEOF(pthread_t, ,
|
|
[AC_INCLUDES_DEFAULT()
|
|
#include <pthread.h> ]
|
|
)
|
|
fi
|
|
AM_CONDITIONAL(PTHREADS, [test "$have_pthreads" != "no" && test "$enable_thread_support" != "no"])
|
|
|
|
# check if we should compile locking into the library
|
|
if test x$enable_thread_support = xno; then
|
|
AC_DEFINE(DISABLE_THREAD_SUPPORT, 1,
|
|
[Define if libevent should not be compiled with thread support])
|
|
fi
|
|
|
|
# check if we should hard-code the mm functions.
|
|
if test x$enable_malloc_replacement = xno; then
|
|
AC_DEFINE(DISABLE_MM_REPLACEMENT, 1,
|
|
[Define if libevent should not allow replacing the mm functions])
|
|
fi
|
|
|
|
# check if we should hard-code debugging out
|
|
if test x$enable_debug_mode = xno; then
|
|
AC_DEFINE(DISABLE_DEBUG_MODE, 1,
|
|
[Define if libevent should build without support for a debug mode])
|
|
fi
|
|
|
|
# check if we have and should use openssl
|
|
AM_CONDITIONAL(OPENSSL, [test "$enable_openssl" != "no" && test "$have_openssl" = "yes"])
|
|
|
|
# Add some more warnings which we use in development but not in the
|
|
# released versions. (Some relevant gcc versions can't handle these.)
|
|
if test x$enable_gcc_warnings = xyes && test "$GCC" = "yes"; then
|
|
|
|
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
|
|
#if !defined(__GNUC__) || (__GNUC__ < 4)
|
|
#error
|
|
#endif])], have_gcc4=yes, have_gcc4=no)
|
|
|
|
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
|
|
#if !defined(__GNUC__) || (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 2)
|
|
#error
|
|
#endif])], have_gcc42=yes, have_gcc42=no)
|
|
|
|
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
|
|
#if !defined(__GNUC__) || (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 5)
|
|
#error
|
|
#endif])], have_gcc45=yes, have_gcc45=no)
|
|
|
|
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [
|
|
#if !defined(__clang__)
|
|
#error
|
|
#endif])], have_clang=yes, have_clang=no)
|
|
|
|
CFLAGS="$CFLAGS -W -Wfloat-equal -Wundef -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes -Wwrite-strings -Wredundant-decls -Wchar-subscripts -Wcomment -Wformat -Wwrite-strings -Wmissing-declarations -Wredundant-decls -Wnested-externs -Wbad-function-cast -Wswitch-enum -Werror"
|
|
CFLAGS="$CFLAGS -Wno-unused-parameter -Wstrict-aliasing"
|
|
|
|
if test x$have_gcc4 = xyes ; then
|
|
# These warnings break gcc 3.3.5 and work on gcc 4.0.2
|
|
CFLAGS="$CFLAGS -Winit-self -Wmissing-field-initializers -Wdeclaration-after-statement"
|
|
#CFLAGS="$CFLAGS -Wold-style-definition"
|
|
fi
|
|
|
|
if test x$have_gcc42 = xyes ; then
|
|
# These warnings break gcc 4.0.2 and work on gcc 4.2
|
|
CFLAGS="$CFLAGS -Waddress"
|
|
fi
|
|
|
|
if test x$have_gcc42 = xyes && test x$have_clang = xno; then
|
|
# These warnings break gcc 4.0.2 and clang, but work on gcc 4.2
|
|
CFLAGS="$CFLAGS -Wnormalized=id -Woverride-init"
|
|
fi
|
|
|
|
if test x$have_gcc45 = xyes ; then
|
|
# These warnings work on gcc 4.5
|
|
CFLAGS="$CFLAGS -Wlogical-op"
|
|
fi
|
|
|
|
if test x$have_clang = xyes; then
|
|
# Disable the unused-function warnings, because these trigger
|
|
# for minheap-internal.h related code.
|
|
CFLAGS="$CFLAGS -Wno-unused-function"
|
|
fi
|
|
|
|
##This will break the world on some 64-bit architectures
|
|
# CFLAGS="$CFLAGS -Winline"
|
|
|
|
fi
|
|
|
|
LIBEVENT_GC_SECTIONS=
|
|
if test "$GCC" = yes && test "$enable_function_sections" = yes ; then
|
|
AC_CACHE_CHECK(
|
|
[if linker supports omitting unused code and data],
|
|
[libevent_cv_gc_sections_runs],
|
|
[
|
|
dnl NetBSD will link but likely not run with --gc-sections
|
|
dnl http://bugs.ntp.org/1844
|
|
dnl http://gnats.netbsd.org/40401
|
|
dnl --gc-sections causes attempt to load as linux elf, with
|
|
dnl wrong syscalls in place. Test a little gauntlet of
|
|
dnl simple stdio read code checking for errors, expecting
|
|
dnl enough syscall differences that the NetBSD code will
|
|
dnl fail even with Linux emulation working as designed.
|
|
dnl A shorter test could be refined by someone with access
|
|
dnl to a NetBSD host with Linux emulation working.
|
|
origCFLAGS="$CFLAGS"
|
|
CFLAGS="$CFLAGS -Wl,--gc-sections"
|
|
AC_LINK_IFELSE(
|
|
[AC_LANG_PROGRAM(
|
|
[[
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
]],
|
|
[[
|
|
FILE * fpC;
|
|
char buf[32];
|
|
size_t cch;
|
|
int read_success_once;
|
|
|
|
fpC = fopen("conftest.c", "r");
|
|
if (NULL == fpC)
|
|
exit(1);
|
|
do {
|
|
cch = fread(buf, sizeof(buf), 1, fpC);
|
|
read_success_once |= (0 != cch);
|
|
} while (0 != cch);
|
|
if (!read_success_once)
|
|
exit(2);
|
|
if (!feof(fpC))
|
|
exit(3);
|
|
if (0 != fclose(fpC))
|
|
exit(4);
|
|
|
|
exit(EXIT_SUCCESS);
|
|
]]
|
|
)],
|
|
[
|
|
dnl We have to do this invocation manually so that we can
|
|
dnl get the output of conftest.err to make sure it doesn't
|
|
dnl mention gc-sections.
|
|
if test "X$cross_compiling" = "Xyes" || grep gc-sections conftest.err ; then
|
|
libevent_cv_gc_sections_runs=no
|
|
else
|
|
libevent_cv_gc_sections_runs=no
|
|
./conftest >/dev/null 2>&1 && libevent_cv_gc_sections_runs=yes
|
|
fi
|
|
],
|
|
[libevent_cv_gc_sections_runs=no]
|
|
)
|
|
CFLAGS="$origCFLAGS"
|
|
AS_UNSET([origCFLAGS])
|
|
]
|
|
)
|
|
case "$libevent_cv_gc_sections_runs" in
|
|
yes)
|
|
CFLAGS="-ffunction-sections -fdata-sections $CFLAGS"
|
|
LIBEVENT_GC_SECTIONS="-Wl,--gc-sections"
|
|
;;
|
|
esac
|
|
fi
|
|
AC_SUBST([LIBEVENT_GC_SECTIONS])
|
|
|
|
AM_CONDITIONAL([INSTALL_LIBEVENT], [test "$enable_libevent_install" = "yes"])
|
|
|
|
AC_CONFIG_FILES( [libevent.pc libevent_openssl.pc libevent_pthreads.pc] )
|
|
AC_OUTPUT(Makefile include/Makefile test/Makefile sample/Makefile)
|