Auto Config
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Auto Config |
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$ ./configure --with-lua=''lua_dir''
You'll get the follwing automake macros @LUA_INCLUDES@ and @LUA_LIBS@
and the following #defines in config.h
/* Define to 1 if you have the <lualib.h> header file. */ #define HAVE_LUALIB_H 1 /* Define to use Lua 5.1 */ #define HAVE_LUA_5_1 1 /* Define to 1 if you have the <lua.h> header file. */ #define HAVE_LUA_H 1
These are the two parts to add
This one for acinclude.m4
If --with-lua is not specified, the script should attempt to get the C flags and link flags from pkg-config. --JohnBelmonte
#
# AC_ETHEREAL_LIBLUA_CHECK
#
AC_DEFUN([AC_ETHEREAL_LIBLUA_CHECK],[
if test "x$lua_dir" != "x"
then
#
# The user specified a directory in which liblua resides,
# so add the "include" subdirectory of that directory to
# the include file search path and the "lib" subdirectory
# of that directory to the library search path.
#
# XXX - if there's also a liblua in a directory that's
# already in CFLAGS, CPPFLAGS, or LDFLAGS, this won't
# make us find the version in the specified directory,
# as the compiler and/or linker will search that other
# directory before it searches the specified directory.
#
ethereal_save_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -I$lua_dir/include"
ethereal_save_CPPFLAGS="$CPPFLAGS"
CPPFLAGS="$CPPFLAGS -I$lua_dir/include"
ethereal_save_LIBS="$LIBS"
LIBS="$LIBS -L$lua_dir/lib -llua"
ethereal_save_LDFLAGS="$LDFLAGS"
LDFLAGS="$LDFLAGS -L$lua_dir/lib"
else
#
# The user specified no directory in which liblua resides,
# so just add "-llua -lliblua" to the used libs.
#
ethereal_save_CFLAGS="$CFLAGS"
ethereal_save_CPPFLAGS="$CPPFLAGS"
ethereal_save_LDFLAGS="$LDFLAGS"
ethereal_save_LIBS="$LIBS"
LIBS="$LIBS -llua"
fi
#
# Make sure we have "lua.h", "lualib.h" and "lauxlib.h". If we don't, it means we probably
# don't have liblua, so don't use it.
#
AC_CHECK_HEADERS(lua.h lualib.h lauxlib.h,,
[
if test "x$lua_dir" != "x"
then
#
# The user used "--with-lua=" to specify a directory
# containing liblua, but we didn't find the header file
# there; that either means they didn't specify the
# right directory or are confused about whether liblua
# is, in fact, installed. Report the error and give up.
#
AC_MSG_ERROR([liblua header not found in directory specified in --with-lua])
else
if test "x$want_lua" = "xyes"
then
#
# The user tried to force us to use the library, but we
# couldn't find the header file; report an error.
#
AC_MSG_ERROR(Header file lua.h not found.)
else
#
# We couldn't find the header file; don't use the
# library, as it's probably not present.
#
want_lua=no
fi
fi
])
if test "x$want_lua" != "xno"
then
#
# Well, we at least have the lua header file.
#
# let's check if the libs are there
#
# At least on Suse 9.3 systems, liblualib needs linking
# against libm.
LIBS="$LIBS $LUA_LIBS -lm"
AC_CHECK_LIB(lua, lua_call,
[
if test "x$lua_dir" != "x"
then
#
# Put the "-I" and "-L" flags for lua at
# the beginning of CFLAGS, CPPFLAGS,
# LDFLAGS, and LIBS.
#
LUA_LIBS="-L$lua_dir/lib -llua"
LUA_INCLUDES="-I$lua_dir/include"
else
LUA_LIBS="-llua"
LUA_INCLUDES=""
fi
#
# we got lua, now look for lualib
#
AC_CHECK_LIB(lualib, luaL_openlib,
[
#
# we have 5.0
#
LUA_LIBS="$LUA_LIBS -llualib"
],[
#
# no lualib, in 5.1 there's only liblua
# do we have 5.1?
#
LIBS="$ethereal_save_LIBS $LUA_LIBS"
AC_CHECK_LIB(lua, luaL_register,
[
#
# Lua 5.1 found
#
AC_DEFINE(HAVE_LUA_5_1, 1, [Define to use Lua 5.1])
],[
#
# No, it is not 5.1
#
if test "x$lua_dir" != "x"
then
#
# Restore the versions of CFLAGS, CPPFLAGS,
# LDFLAGS, and LIBS before we added the
# "--with-lua=" directory, as we didn't
# actually find lua there.
#
CFLAGS="$ethereal_save_CFLAGS"
CPPFLAGS="$ethereal_save_CPPFLAGS"
LDFLAGS="$ethereal_save_LDFLAGS"
LIBS="$ethereal_save_LIBS"
LUA_LIBS=""
fi
# User requested --with-lua but it isn't available
if test "x$want_lua" = "xyes"
then
AC_MSG_ERROR(Linking with liblualib failed.)
fi
want_lua=no
])
])
],[
#
# Restore the versions of CFLAGS, CPPFLAGS,
# LDFLAGS, and LIBS before we added the
# "--with-lua=" directory, as we didn't
# actually find lua there.
#
CFLAGS="$ethereal_save_CFLAGS"
CPPFLAGS="$ethereal_save_CPPFLAGS"
LDFLAGS="$ethereal_save_LDFLAGS"
LIBS="$ethereal_save_LIBS"
LUA_LIBS=""
# User requested --with-lua but it isn't available
if test "x$want_lua" = "xyes"
then
AC_MSG_ERROR(Linking with liblua failed.)
fi
want_lua=no
])
CFLAGS="$ethereal_save_CFLAGS"
CPPFLAGS="$ethereal_save_CPPFLAGS"
LDFLAGS="$ethereal_save_LDFLAGS"
LIBS="$ethereal_save_LIBS"
AC_SUBST(LUA_LIBS)
AC_SUBST(LUA_INCLUDES)
fi
])
dnl lua check AC_MSG_CHECKING(whether to use liblua) AC_ARG_WITH(lua, [ --with-lua[[=DIR]] use liblua (located in directory DIR, if supplied) for the lua scripting plugin. [[default=no]]], [ if test $withval = no then want_lua=no elif test $withval = yes then want_lua=yes else want_lua=yes lua_dir=$withval fi ],[ # # Use liblua if it's present, otherwise don't. # want_lua=no lua_dir= ]) if test "x$want_lua" = "xno" ; then AC_MSG_RESULT(no) else AC_MSG_RESULT(yes) AC_ETHEREAL_LIBLUA_CHECK if test "x$want_lua" = "xno" ; then AC_MSG_RESULT(liblua not found - disabling support for the lua scripting plugin) fi fi AM_CONDITIONAL(HAVE_LIBLUA, test x$want_lua = xyes)