Commit e1ec5594 authored by Jacob Champion's avatar Jacob Champion
Browse files

configure: check for luaL_register in liblua 

This is a temporary workaround for a missing compatibility API on
Debian-like systems (and anyone else who doesn't compile with
LUA_COMPAT_MODULE). Ignore any such libraries so we don't fail
confusingly later.

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1785753 13f79535-47bb-0310-9956-ffa450edef68
parent ef334da7

modules/lua/config.m4

+37 −6
Original line number Diff line number Diff line
@@ -12,20 +12,51 @@ AC_DEFUN([CHECK_LUA_PATH], [dnl 
    AC_MSG_CHECKING([for lua.h in $1/$2])

    if test -f $1/$2/lua.h; then

        AC_MSG_RESULT([yes])



        save_CFLAGS=$CFLAGS

        save_LDFLAGS=$LDFLAGS

        save_LIBS=$LIBS



        CFLAGS="$CFLAGS"

        LDFLAGS="-L$1/$3 $LDFLAGS $lib_m"



        AC_CHECK_LIB($4, luaL_newstate, [

            dnl mod_lua relies on some compatibility APIs to function.

            AC_MSG_CHECKING([for luaL_register in -l$4])

            CFLAGS="$CFLAGS -I$1/$2"

            LIBS="-l$4"

            AC_LINK_IFELSE([

                AC_LANG_PROGRAM([[

                    #define LUA_COMPAT_ALL

                    #define LUA_COMPAT_5_2

                    #define LUA_COMPAT_5_1

                    #define LUA_COMPAT_MODULE



                    #include <lua.h>

                    #include <lauxlib.h>

                ]], [[

                    /* This isn't a valid call, but we're testing linkability */

                    luaL_register(NULL, NULL, NULL);

                ]])

            ], [

                AC_MSG_RESULT([yes])

                LUA_LIBS="-L$1/$3 -l$4 $lib_m"

                if test "x$ap_platform_runtime_link_flag" != "x"; then

                   APR_ADDTO(LUA_LIBS, [$ap_platform_runtime_link_flag$1/$3])

                fi

                LUA_CFLAGS="-I$1/$2"

            ], [

                AC_MSG_RESULT([no])

            ])

        ])



        CFLAGS=$save_CFLAGS

        LDFLAGS=$save_LDFLAGS

        LIBS=$save_LIBS



        if test -n "${LUA_LIBS}"; then

            break

        fi

    else

        AC_MSG_RESULT([no])

    fi