AC_PREREQ([2.69])
AC_INIT([[lem]], [[0.3]], [[esmil@mailme.dk]])
builtin_lua_version='5.3'
AC_LANG(C)
AC_SUBST([headers], ['lem.h lem-parsers.h'])
AC_SUBST([objects], ['bin/lem.o'])
AC_SUBST([CPPFLAGS_ADD], ['-Iinclude'])
AC_SUBST([SHARED], ['-shared'])
AS_IF([test "x$CFLAGS" = 'x'], CFLAGS='-O2 -g -Wall -Wextra')
AC_ARG_WITH([ev],
[AS_HELP_STRING([--with-ev],
[check or builtin @<:@default=check@:>@])],
[],
[with_ev=check])
AC_ARG_WITH([lua],
[AS_HELP_STRING([--with-lua],
[check, builtin or pkg-config name @<:@default=check@:>@])],
[],
[with_lua=check])
AC_SUBST([lmoddir])
AC_ARG_WITH([lmoddir],
[AS_HELP_STRING([--with-lmoddir],
[Lua module installation directory])],
[lmoddir="$with_lmoddir"])
AC_SUBST([cmoddir])
AC_ARG_WITH([cmoddir],
[AS_HELP_STRING([--with-cmoddir],
[Lua C module installation directory])],
[cmoddir="$with_cmoddir"])
PKG_INSTALLDIR
AC_CANONICAL_TARGET
# Checks for programs.
AC_PROG_CC_C99
AC_PROG_INSTALL
AC_PROG_SED
AC_PATH_TARGET_TOOL([STRIP],[strip])
PKG_PROG_PKG_CONFIG
# Target specific fixes
AS_CASE(["x$target_os"],
[xdarwin*],
[ac_cv_func_kqueue=no] # kqueue seems to be broken on OSX
[SHARED='-dynamiclib -Wl,-undefined,dynamic_lookup']
[STRIP="$STRIP -x"])
# Check for pthread library
AC_SEARCH_LIBS([pthread_create], [pthread])
# Checks for header files.
AC_CHECK_HEADERS([stddef.h stdlib.h string.h unistd.h sys/time.h time.h pthread.h])
AC_CHECK_HEADERS([sys/eventfd.h sys/epoll.h sys/event.h])
# Configure libev
AS_CASE(["x$with_ev"],
[xbuiltin],
[],
[xcheck],
[AC_SEARCH_LIBS([ev_run], [ev], [], [with_ev=builtin])],
[AC_MSG_ERROR([--with-ev must be check or builtin, not '$with_ev'])])
AS_IF([test "x$with_ev" = 'xbuiltin'],
[AC_CONFIG_HEADERS([libev/ev-config.h:ev-config.h.in])]
[objects="bin/libev.o $objects"]
[headers="ev-config.h ev.h $headers"]
[CPPFLAGS_ADD="$CPPFLAGS_ADD -Ilibev"]
[AS_IF([test "x$ac_cv_header_sys_eventfd_h" = 'xyes'],
[AC_CHECK_FUNC([eventfd],
[AC_DEFINE([EV_USE_EVENTFD], 1)],
[AC_DEFINE([EV_USE_EVENTFD], 0)])],
[AC_DEFINE([EV_USE_EVENTFD], 0)])]
[AC_CHECK_FUNC([nanosleep],
[AC_DEFINE([EV_USE_NANOSLEEP], 1)],
[AC_DEFINE([EV_USE_NANOSLEEP], 0)])]
[AC_CHECK_FUNCS([poll select epoll_ctl kqueue])]
[AS_IF([test "x$ac_cv_func_epoll_ctl" = 'xyes'],
[AC_DEFINE([EV_USE_SELECT], 0)]
[AC_DEFINE([EV_USE_POLL], 0)]
[AC_DEFINE([EV_USE_EPOLL], 1)]
[AC_DEFINE([EV_USE_KQUEUE], 0)],
[AS_IF([test "x$ac_cv_func_kqueue" = 'xyes'],
[AC_DEFINE([EV_USE_SELECT], 0)]
[AC_DEFINE([EV_USE_POLL], 0)]
[AC_DEFINE([EV_USE_EPOLL], 0)]
[AC_DEFINE([EV_USE_KQUEUE], 1)],
[AS_IF([test "x$ac_cv_func_select" = 'xyes'],
[AC_DEFINE([EV_USE_SELECT], 1)]
[AC_DEFINE([EV_USE_POLL], 0)]
[AC_DEFINE([EV_USE_EPOLL], 0)]
[AC_DEFINE([EV_USE_KQUEUE], 0)],
[AS_IF([test "x$ac_cv_func_poll" = 'xyes'],
[AC_DEFINE([EV_USE_SELECT], 0)]
[AC_DEFINE([EV_USE_POLL], 1)]
[AC_DEFINE([EV_USE_EPOLL], 0)]
[AC_DEFINE([EV_USE_KQUEUE], 0)],
[AC_MSG_ERROR([neither poll or select found])])])])])])
# Configure Lua
AS_CASE(["x$with_lua"],
[xbuiltin],
[],
[xcheck],
[PKG_CHECK_MODULES([Lua], [lua5.3], [with_lua=lua5.3],
[PKG_CHECK_MODULES([Lua], [lua53], [with_lua=lua53],
[PKG_CHECK_MODULES([Lua], [lua],
[AS_IF([test "x$($PKG_CONFIG --variable=V lua)" = 'x5.3'],
[with_lua=lua],
[with_lua=builtin])],
[with_lua=builtin])])])],
[PKG_CHECK_MODULES([Lua], ["$with_lua"], [],
[AC_MSG_ERROR([pkg-config package '$with_lua' not found])])])
AS_IF([test "x$with_lua" = 'xbuiltin'],
[AC_SEARCH_LIBS([sin], [m])]
[AC_SEARCH_LIBS([dlopen], [dl])]
[objects="bin/lua.o $objects"]
[headers="luaconf.h lua.h lauxlib.h $headers"]
[CPPFLAGS_ADD="$CPPFLAGS_ADD -Ilua"]
[Lua_CFLAGS='']
[Lua_LIBS='']
[ac_cv_func_luaL_traceback=yes]
[AS_IF([test "x$lmoddir" = 'x'], [lmoddir="\${datarootdir}/lua/$builtin_lua_version"])]
[AS_IF([test "x$cmoddir" = 'x'], [cmoddir="\${libdir}/lua/$builtin_lua_version"])])
CPPFLAGS_ADD="$CPPFLAGS_ADD $Lua_CFLAGS"
LIBS="$Lua_LIBS $LIBS"
AS_IF([test "x$lmoddir" = 'x'], [lmoddir="`$PKG_CONFIG --variable=INSTALL_LMOD $with_lua`"])
AS_IF([test "x$cmoddir" = 'x'], [cmoddir="`$PKG_CONFIG --variable=INSTALL_CMOD $with_lua`"])
AS_IF([test "x$lmoddir" = 'x'],
[AC_MSG_ERROR([unable to deduce Lua module directory, please use --with-lmoddir=path])])
AS_IF([test "x$cmoddir" = 'x'],
[AC_MSG_ERROR([unable to deduce Lua C module directory, please use --with-cmoddir=path])])
AC_CONFIG_FILES([Makefile])
AC_OUTPUT
