From: Quentin Young Date: Thu, 9 May 2019 20:08:40 +0000 (+0000) Subject: build: fix Lua build X-Git-Tag: base_7.2~365^2 X-Git-Url: https://git.puffer.fish/?a=commitdiff_plain;h=5dbb0a7b2a4fd212fc4fee181fc86e778243dac9;p=matthieu%2Ffrr.git build: fix Lua build Each of Lua's major versions are incompatible with each other. Ubuntu, at least, does not provide a single liblua.so or /usr/include/lua; all SOs and headers are versioned, e.g. liblua5.3.so and /usr/include/lua5.3. There's already an m4 macro in the GNU collection to handle this situation, so let's use that. This allows building with Lua enabled to work on platforms other than Fedora. * Move lib/lua.[ch] -> lib/frrlua.[ch] to prevent path conflicts * Fix configure.ac search for proper CPP and linker flags * Add Lua include path to AM_CPPFLAGS * Update vtysh/extract.pl.in Signed-off-by: Quentin Young --- diff --git a/Makefile.am b/Makefile.am index 546aa85fe7..11188ea157 100644 --- a/Makefile.am +++ b/Makefile.am @@ -12,7 +12,9 @@ AM_CFLAGS = \ # end AM_CPPFLAGS = \ -I$(top_srcdir) -I$(top_srcdir)/include -I$(top_srcdir)/lib \ - -I$(top_builddir) -I$(top_builddir)/include -I$(top_builddir)/lib + -I$(top_builddir) -I$(top_builddir)/include -I$(top_builddir)/lib \ + $(LUA_INCLUDE) \ + # end AM_LDFLAGS = \ -export-dynamic \ $(AC_LDFLAGS) \ diff --git a/bgpd/bgp_routemap.c b/bgpd/bgp_routemap.c index c276f5ef7b..0da9a84b56 100644 --- a/bgpd/bgp_routemap.c +++ b/bgpd/bgp_routemap.c @@ -28,7 +28,7 @@ #include "plist.h" #include "memory.h" #include "log.h" -#include "lua.h" +#include "frrlua.h" #ifdef HAVE_LIBPCREPOSIX #include #else diff --git a/configure.ac b/configure.ac index 86168a8487..b7ddf87b43 100755 --- a/configure.ac +++ b/configure.ac @@ -222,9 +222,12 @@ elif test "x${enable_dev_build}" = "xyes"; then AC_C_FLAG([-O0]) fi if test "x${enable_lua}" = "xyes"; then - AC_CHECK_LIB([lua], [lua_newstate], - [LIBS="$LIBS -llua"]) - AC_DEFINE([HAVE_LUA], [1], [Lua enabled for development]) + AX_PROG_LUA([5.3]) + AX_LUA_HEADERS + AX_LUA_LIBS([ + AC_DEFINE([HAVE_LUA], [1], [Have support for Lua interpreter]) + LIBS="$LIBS $LUA_LIB" + ]) fi else if test "x${enable_lua}" = "xyes"; then diff --git a/lib/frrlua.c b/lib/frrlua.c new file mode 100644 index 0000000000..b7d8eea6e8 --- /dev/null +++ b/lib/frrlua.c @@ -0,0 +1,130 @@ +/* + * This file defines the lua interface into + * FRRouting. + * + * Copyright (C) 2016 Cumulus Networks, Inc. + * Donald Sharp + * + * This file is part of FreeRangeRouting (FRR). + * + * FRR is free software; you can redistribute it and/or modify it under the + * terms of the GNU General Public License as published by the Free Software + * Foundation; either version 2, or (at your option) any later version. + * + * FRR is distributed in the hope that it will be useful, but WITHOUT ANY + * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS + * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License along + * with FRR; see the file COPYING. If not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ +#include + +#include + +#if defined(HAVE_LUA) +#include "prefix.h" +#include "frrlua.h" +#include "log.h" + +static int lua_zlog_debug(lua_State *L) +{ + int debug_lua = 1; + const char *string = lua_tostring(L, 1); + + if (debug_lua) + zlog_debug("%s", string); + + return 0; +} + +const char *get_string(lua_State *L, const char *key) +{ + const char *str; + + lua_pushstring(L, key); + lua_gettable(L, -2); + + str = (const char *)lua_tostring(L, -1); + lua_pop(L, 1); + + return str; +} + +int get_integer(lua_State *L, const char *key) +{ + int result; + + lua_pushstring(L, key); + lua_gettable(L, -2); + + result = lua_tointeger(L, -1); + lua_pop(L, 1); + + return result; +} + +static void *lua_alloc(void *ud, void *ptr, size_t osize, + size_t nsize) +{ + (void)ud; (void)osize; /* not used */ + if (nsize == 0) { + free(ptr); + return NULL; + } else + return realloc(ptr, nsize); +} + +lua_State *lua_initialize(const char *file) +{ + int status; + lua_State *L = lua_newstate(lua_alloc, NULL); + + zlog_debug("Newstate: %p", L); + luaL_openlibs(L); + zlog_debug("Opened lib"); + status = luaL_loadfile(L, file); + if (status) { + zlog_debug("Failure to open %s %d", file, status); + lua_close(L); + return NULL; + } + + lua_pcall(L, 0, LUA_MULTRET, 0); + zlog_debug("Setting global function"); + lua_pushcfunction(L, lua_zlog_debug); + lua_setglobal(L, "zlog_debug"); + + return L; +} + +void lua_setup_prefix_table(lua_State *L, const struct prefix *prefix) +{ + char buffer[100]; + + lua_newtable(L); + lua_pushstring(L, prefix2str(prefix, buffer, 100)); + lua_setfield(L, -2, "route"); + lua_pushinteger(L, prefix->family); + lua_setfield(L, -2, "family"); + lua_setglobal(L, "prefix"); +} + +enum lua_rm_status lua_run_rm_rule(lua_State *L, const char *rule) +{ + int status; + + lua_getglobal(L, rule); + status = lua_pcall(L, 0, 1, 0); + if (status) { + zlog_debug("Executing Failure with function: %s: %d", + rule, status); + return LUA_RM_FAILURE; + } + + status = lua_tonumber(L, -1); + return status; +} +#endif diff --git a/lib/frrlua.h b/lib/frrlua.h new file mode 100644 index 0000000000..374eb70311 --- /dev/null +++ b/lib/frrlua.h @@ -0,0 +1,88 @@ +/* + * This file defines the lua interface into + * FRRouting. + * + * Copyright (C) 2016 Cumulus Networks, Inc. + * Donald Sharp + * + * This file is part of FreeRangeRouting (FRR). + * + * FRR is free software; you can redistribute it and/or modify it under the + * terms of the GNU General Public License as published by the Free Software + * Foundation; either version 2, or (at your option) any later version. + * + * FRR is distributed in the hope that it will be useful, but WITHOUT ANY + * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS + * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License along + * with FRR; see the file COPYING. If not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ +#ifndef __LUA_H__ +#define __LUA_H__ + +#if defined(HAVE_LUA) + +#include "lua.h" +#include "lualib.h" +#include "lauxlib.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/* + * These functions are helper functions that + * try to glom some of the lua_XXX functionality + * into what we actually need, instead of having + * to make multiple calls to set up what + * we want + */ +enum lua_rm_status { + /* + * Script function run failure. This will translate into a + * deny + */ + LUA_RM_FAILURE = 0, + /* + * No Match was found for the route map function + */ + LUA_RM_NOMATCH, + /* + * Match was found but no changes were made to the + * incoming data. + */ + LUA_RM_MATCH, + /* + * Match was found and data was modified, so + * figure out what changed + */ + LUA_RM_MATCH_AND_CHANGE, +}; + +/* + * Open up the lua.scr file and parse + * initial global values, if any. + */ +lua_State *lua_initialize(const char *file); + +void lua_setup_prefix_table(lua_State *L, const struct prefix *prefix); + +enum lua_rm_status lua_run_rm_rule(lua_State *L, const char *rule); + +/* + * Get particular string/integer information + * from a table. It is *assumed* that + * the table has already been selected + */ +const char *get_string(lua_State *L, const char *key); +int get_integer(lua_State *L, const char *key); + +#ifdef __cplusplus +} +#endif + +#endif +#endif diff --git a/lib/lua.c b/lib/lua.c deleted file mode 100644 index 3d701a9364..0000000000 --- a/lib/lua.c +++ /dev/null @@ -1,130 +0,0 @@ -/* - * This file defines the lua interface into - * FRRouting. - * - * Copyright (C) 2016 Cumulus Networks, Inc. - * Donald Sharp - * - * This file is part of FreeRangeRouting (FRR). - * - * FRR is free software; you can redistribute it and/or modify it under the - * terms of the GNU General Public License as published by the Free Software - * Foundation; either version 2, or (at your option) any later version. - * - * FRR is distributed in the hope that it will be useful, but WITHOUT ANY - * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS - * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more - * details. - * - * You should have received a copy of the GNU General Public License along - * with FRR; see the file COPYING. If not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - */ -#include - -#include - -#if defined(HAVE_LUA) -#include "prefix.h" -#include "lua.h" -#include "log.h" - -static int lua_zlog_debug(lua_State *L) -{ - int debug_lua = 1; - const char *string = lua_tostring(L, 1); - - if (debug_lua) - zlog_debug("%s", string); - - return 0; -} - -const char *get_string(lua_State *L, const char *key) -{ - const char *str; - - lua_pushstring(L, key); - lua_gettable(L, -2); - - str = (const char *)lua_tostring(L, -1); - lua_pop(L, 1); - - return str; -} - -int get_integer(lua_State *L, const char *key) -{ - int result; - - lua_pushstring(L, key); - lua_gettable(L, -2); - - result = lua_tointeger(L, -1); - lua_pop(L, 1); - - return result; -} - -static void *lua_alloc(void *ud, void *ptr, size_t osize, - size_t nsize) -{ - (void)ud; (void)osize; /* not used */ - if (nsize == 0) { - free(ptr); - return NULL; - } else - return realloc(ptr, nsize); -} - -lua_State *lua_initialize(const char *file) -{ - int status; - lua_State *L = lua_newstate(lua_alloc, NULL); - - zlog_debug("Newstate: %p", L); - luaL_openlibs(L); - zlog_debug("Opened lib"); - status = luaL_loadfile(L, file); - if (status) { - zlog_debug("Failure to open %s %d", file, status); - lua_close(L); - return NULL; - } - - lua_pcall(L, 0, LUA_MULTRET, 0); - zlog_debug("Setting global function"); - lua_pushcfunction(L, lua_zlog_debug); - lua_setglobal(L, "zlog_debug"); - - return L; -} - -void lua_setup_prefix_table(lua_State *L, const struct prefix *prefix) -{ - char buffer[100]; - - lua_newtable(L); - lua_pushstring(L, prefix2str(prefix, buffer, 100)); - lua_setfield(L, -2, "route"); - lua_pushinteger(L, prefix->family); - lua_setfield(L, -2, "family"); - lua_setglobal(L, "prefix"); -} - -enum lua_rm_status lua_run_rm_rule(lua_State *L, const char *rule) -{ - int status; - - lua_getglobal(L, rule); - status = lua_pcall(L, 0, 1, 0); - if (status) { - zlog_debug("Executing Failure with function: %s: %d", - rule, status); - return LUA_RM_FAILURE; - } - - status = lua_tonumber(L, -1); - return status; -} -#endif diff --git a/lib/lua.h b/lib/lua.h deleted file mode 100644 index a864ab30e0..0000000000 --- a/lib/lua.h +++ /dev/null @@ -1,88 +0,0 @@ -/* - * This file defines the lua interface into - * FRRouting. - * - * Copyright (C) 2016 Cumulus Networks, Inc. - * Donald Sharp - * - * This file is part of FreeRangeRouting (FRR). - * - * FRR is free software; you can redistribute it and/or modify it under the - * terms of the GNU General Public License as published by the Free Software - * Foundation; either version 2, or (at your option) any later version. - * - * FRR is distributed in the hope that it will be useful, but WITHOUT ANY - * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS - * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more - * details. - * - * You should have received a copy of the GNU General Public License along - * with FRR; see the file COPYING. If not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - */ -#ifndef __LUA_H__ -#define __LUA_H__ - -#if defined(HAVE_LUA) - -#include -#include -#include - -#ifdef __cplusplus -extern "C" { -#endif - -/* - * These functions are helper functions that - * try to glom some of the lua_XXX functionality - * into what we actually need, instead of having - * to make multiple calls to set up what - * we want - */ -enum lua_rm_status { - /* - * Script function run failure. This will translate into a - * deny - */ - LUA_RM_FAILURE = 0, - /* - * No Match was found for the route map function - */ - LUA_RM_NOMATCH, - /* - * Match was found but no changes were made to the - * incoming data. - */ - LUA_RM_MATCH, - /* - * Match was found and data was modified, so - * figure out what changed - */ - LUA_RM_MATCH_AND_CHANGE, -}; - -/* - * Open up the lua.scr file and parse - * initial global values, if any. - */ -lua_State *lua_initialize(const char *file); - -void lua_setup_prefix_table(lua_State *L, const struct prefix *prefix); - -enum lua_rm_status lua_run_rm_rule(lua_State *L, const char *rule); - -/* - * Get particular string/integer information - * from a table. It is *assumed* that - * the table has already been selected - */ -const char *get_string(lua_State *L, const char *key); -int get_integer(lua_State *L, const char *key); - -#ifdef __cplusplus -} -#endif - -#endif -#endif diff --git a/lib/subdir.am b/lib/subdir.am index 0b7af18fcf..4897f5e8e5 100644 --- a/lib/subdir.am +++ b/lib/subdir.am @@ -3,7 +3,7 @@ # lib_LTLIBRARIES += lib/libfrr.la lib_libfrr_la_LDFLAGS = -version-info 0:0:0 -Xlinker -e_libfrr_version -lib_libfrr_la_LIBADD = $(LIBCAP) $(UNWIND_LIBS) $(LIBYANG_LIBS) +lib_libfrr_la_LIBADD = $(LIBCAP) $(UNWIND_LIBS) $(LIBYANG_LIBS) $(LUA_LIB) lib_libfrr_la_SOURCES = \ lib/agg_table.c \ @@ -21,6 +21,7 @@ lib_libfrr_la_SOURCES = \ lib/distribute.c \ lib/ferr.c \ lib/filter.c \ + lib/frrlua.c \ lib/frr_pthread.c \ lib/frrstr.c \ lib/getopt.c \ @@ -93,7 +94,6 @@ lib_libfrr_la_SOURCES = \ lib/yang_wrappers.c \ lib/zclient.c \ lib/logicalrouter.c \ - lib/lua.c \ # end nodist_lib_libfrr_la_SOURCES = \ @@ -151,6 +151,7 @@ pkginclude_HEADERS += \ lib/ferr.h \ lib/filter.h \ lib/freebsd-queue.h \ + lib/frrlua.h \ lib/frr_pthread.h \ lib/frratomic.h \ lib/frrstr.h \ @@ -228,7 +229,6 @@ pkginclude_HEADERS += \ lib/zclient.h \ lib/zebra.h \ lib/logicalrouter.h \ - lib/lua.h \ lib/pbr.h \ # end diff --git a/m4/ax_lua.m4 b/m4/ax_lua.m4 new file mode 100644 index 0000000000..9feb352255 --- /dev/null +++ b/m4/ax_lua.m4 @@ -0,0 +1,664 @@ +# =========================================================================== +# http://www.gnu.org/software/autoconf-archive/ax_lua.html +# =========================================================================== +# +# SYNOPSIS +# +# AX_PROG_LUA[([MINIMUM-VERSION], [TOO-BIG-VERSION], [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])] +# AX_LUA_HEADERS[([ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])] +# AX_LUA_LIBS[([ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])] +# AX_LUA_READLINE[([ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])] +# +# DESCRIPTION +# +# Detect a Lua interpreter, optionally specifying a minimum and maximum +# version number. Set up important Lua paths, such as the directories in +# which to install scripts and modules (shared libraries). +# +# Also detect Lua headers and libraries. The Lua version contained in the +# header is checked to match the Lua interpreter version exactly. When +# searching for Lua libraries, the version number is used as a suffix. +# This is done with the goal of supporting multiple Lua installs (5.1, +# 5.2, and 5.3 side-by-side). +# +# A note on compatibility with previous versions: This file has been +# mostly rewritten for serial 18. Most developers should be able to use +# these macros without needing to modify configure.ac. Care has been taken +# to preserve each macro's behavior, but there are some differences: +# +# 1) AX_WITH_LUA is deprecated; it now expands to the exact same thing as +# AX_PROG_LUA with no arguments. +# +# 2) AX_LUA_HEADERS now checks that the version number defined in lua.h +# matches the interpreter version. AX_LUA_HEADERS_VERSION is therefore +# unnecessary, so it is deprecated and does not expand to anything. +# +# 3) The configure flag --with-lua-suffix no longer exists; the user +# should instead specify the LUA precious variable on the command line. +# See the AX_PROG_LUA description for details. +# +# Please read the macro descriptions below for more information. +# +# This file was inspired by Andrew Dalke's and James Henstridge's +# python.m4 and Tom Payne's, Matthieu Moy's, and Reuben Thomas's ax_lua.m4 +# (serial 17). Basically, this file is a mash-up of those two files. I +# like to think it combines the best of the two! +# +# AX_PROG_LUA: Search for the Lua interpreter, and set up important Lua +# paths. Adds precious variable LUA, which may contain the path of the Lua +# interpreter. If LUA is blank, the user's path is searched for an +# suitable interpreter. +# +# If MINIMUM-VERSION is supplied, then only Lua interpreters with a +# version number greater or equal to MINIMUM-VERSION will be accepted. If +# TOO-BIG-VERSION is also supplied, then only Lua interpreters with a +# version number greater or equal to MINIMUM-VERSION and less than +# TOO-BIG-VERSION will be accepted. +# +# The Lua version number, LUA_VERSION, is found from the interpreter, and +# substituted. LUA_PLATFORM is also found, but not currently supported (no +# standard representation). +# +# Finally, the macro finds four paths: +# +# luadir Directory to install Lua scripts. +# pkgluadir $luadir/$PACKAGE +# luaexecdir Directory to install Lua modules. +# pkgluaexecdir $luaexecdir/$PACKAGE +# +# These paths are found based on $prefix, $exec_prefix, Lua's +# package.path, and package.cpath. The first path of package.path +# beginning with $prefix is selected as luadir. The first path of +# package.cpath beginning with $exec_prefix is used as luaexecdir. This +# should work on all reasonable Lua installations. If a path cannot be +# determined, a default path is used. Of course, the user can override +# these later when invoking make. +# +# luadir Default: $prefix/share/lua/$LUA_VERSION +# luaexecdir Default: $exec_prefix/lib/lua/$LUA_VERSION +# +# These directories can be used by Automake as install destinations. The +# variable name minus 'dir' needs to be used as a prefix to the +# appropriate Automake primary, e.g. lua_SCRIPS or luaexec_LIBRARIES. +# +# If an acceptable Lua interpreter is found, then ACTION-IF-FOUND is +# performed, otherwise ACTION-IF-NOT-FOUND is preformed. If ACTION-IF-NOT- +# FOUND is blank, then it will default to printing an error. To prevent +# the default behavior, give ':' as an action. +# +# AX_LUA_HEADERS: Search for Lua headers. Requires that AX_PROG_LUA be +# expanded before this macro. Adds precious variable LUA_INCLUDE, which +# may contain Lua specific include flags, e.g. -I/usr/include/lua5.1. If +# LUA_INCLUDE is blank, then this macro will attempt to find suitable +# flags. +# +# LUA_INCLUDE can be used by Automake to compile Lua modules or +# executables with embedded interpreters. The *_CPPFLAGS variables should +# be used for this purpose, e.g. myprog_CPPFLAGS = $(LUA_INCLUDE). +# +# This macro searches for the header lua.h (and others). The search is +# performed with a combination of CPPFLAGS, CPATH, etc, and LUA_INCLUDE. +# If the search is unsuccessful, then some common directories are tried. +# If the headers are then found, then LUA_INCLUDE is set accordingly. +# +# The paths automatically searched are: +# +# * /usr/include/luaX.Y +# * /usr/include/lua/X.Y +# * /usr/include/luaXY +# * /usr/local/include/luaX.Y +# * /usr/local/include/lua-X.Y +# * /usr/local/include/lua/X.Y +# * /usr/local/include/luaXY +# +# (Where X.Y is the Lua version number, e.g. 5.1.) +# +# The Lua version number found in the headers is always checked to match +# the Lua interpreter's version number. Lua headers with mismatched +# version numbers are not accepted. +# +# If headers are found, then ACTION-IF-FOUND is performed, otherwise +# ACTION-IF-NOT-FOUND is performed. If ACTION-IF-NOT-FOUND is blank, then +# it will default to printing an error. To prevent the default behavior, +# set the action to ':'. +# +# AX_LUA_LIBS: Search for Lua libraries. Requires that AX_PROG_LUA be +# expanded before this macro. Adds precious variable LUA_LIB, which may +# contain Lua specific linker flags, e.g. -llua5.1. If LUA_LIB is blank, +# then this macro will attempt to find suitable flags. +# +# LUA_LIB can be used by Automake to link Lua modules or executables with +# embedded interpreters. The *_LIBADD and *_LDADD variables should be used +# for this purpose, e.g. mymod_LIBADD = $(LUA_LIB). +# +# This macro searches for the Lua library. More technically, it searches +# for a library containing the function lua_load. The search is performed +# with a combination of LIBS, LIBRARY_PATH, and LUA_LIB. +# +# If the search determines that some linker flags are missing, then those +# flags will be added to LUA_LIB. +# +# If libraries are found, then ACTION-IF-FOUND is performed, otherwise +# ACTION-IF-NOT-FOUND is performed. If ACTION-IF-NOT-FOUND is blank, then +# it will default to printing an error. To prevent the default behavior, +# set the action to ':'. +# +# AX_LUA_READLINE: Search for readline headers and libraries. Requires the +# AX_LIB_READLINE macro, which is provided by ax_lib_readline.m4 from the +# Autoconf Archive. +# +# If a readline compatible library is found, then ACTION-IF-FOUND is +# performed, otherwise ACTION-IF-NOT-FOUND is performed. +# +# LICENSE +# +# Copyright (c) 2015 Reuben Thomas +# Copyright (c) 2014 Tim Perkins +# +# This program is free software: you can redistribute it and/or modify it +# under the terms of the GNU General Public License as published by the +# Free Software Foundation, either version 3 of the License, or (at your +# option) any later version. +# +# This program is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General +# Public License for more details. +# +# You should have received a copy of the GNU General Public License along +# with this program. If not, see . +# +# As a special exception, the respective Autoconf Macro's copyright owner +# gives unlimited permission to copy, distribute and modify the configure +# scripts that are the output of Autoconf when processing the Macro. You +# need not follow the terms of the GNU General Public License when using +# or distributing such scripts, even though portions of the text of the +# Macro appear in them. The GNU General Public License (GPL) does govern +# all other use of the material that constitutes the Autoconf Macro. +# +# This special exception to the GPL applies to versions of the Autoconf +# Macro released by the Autoconf Archive. When you make and distribute a +# modified version of the Autoconf Macro, you may extend this special +# exception to the GPL to apply to your modified version as well. + +#serial 39 + +dnl ========================================================================= +dnl AX_PROG_LUA([MINIMUM-VERSION], [TOO-BIG-VERSION], +dnl [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) +dnl ========================================================================= +AC_DEFUN([AX_PROG_LUA], +[ + dnl Check for required tools. + AC_REQUIRE([AC_PROG_GREP]) + AC_REQUIRE([AC_PROG_SED]) + + dnl Make LUA a precious variable. + AC_ARG_VAR([LUA], [The Lua interpreter, e.g. /usr/bin/lua5.1]) + + dnl Find a Lua interpreter. + m4_define_default([_AX_LUA_INTERPRETER_LIST], + [lua lua5.3 lua53 lua5.2 lua52 lua5.1 lua51 lua50]) + + m4_if([$1], [], + [ dnl No version check is needed. Find any Lua interpreter. + AS_IF([test "x$LUA" = 'x'], + [AC_PATH_PROGS([LUA], [_AX_LUA_INTERPRETER_LIST], [:])]) + ax_display_LUA='lua' + + AS_IF([test "x$LUA" != 'x:'], + [ dnl At least check if this is a Lua interpreter. + AC_MSG_CHECKING([if $LUA is a Lua interpreter]) + _AX_LUA_CHK_IS_INTRP([$LUA], + [AC_MSG_RESULT([yes])], + [ AC_MSG_RESULT([no]) + AC_MSG_ERROR([not a Lua interpreter]) + ]) + ]) + ], + [ dnl A version check is needed. + AS_IF([test "x$LUA" != 'x'], + [ dnl Check if this is a Lua interpreter. + AC_MSG_CHECKING([if $LUA is a Lua interpreter]) + _AX_LUA_CHK_IS_INTRP([$LUA], + [AC_MSG_RESULT([yes])], + [ AC_MSG_RESULT([no]) + AC_MSG_ERROR([not a Lua interpreter]) + ]) + dnl Check the version. + m4_if([$2], [], + [_ax_check_text="whether $LUA version >= $1"], + [_ax_check_text="whether $LUA version >= $1, < $2"]) + AC_MSG_CHECKING([$_ax_check_text]) + _AX_LUA_CHK_VER([$LUA], [$1], [$2], + [AC_MSG_RESULT([yes])], + [ AC_MSG_RESULT([no]) + AC_MSG_ERROR([version is out of range for specified LUA])]) + ax_display_LUA=$LUA + ], + [ dnl Try each interpreter until we find one that satisfies VERSION. + m4_if([$2], [], + [_ax_check_text="for a Lua interpreter with version >= $1"], + [_ax_check_text="for a Lua interpreter with version >= $1, < $2"]) + AC_CACHE_CHECK([$_ax_check_text], + [ax_cv_pathless_LUA], + [ for ax_cv_pathless_LUA in _AX_LUA_INTERPRETER_LIST none; do + test "x$ax_cv_pathless_LUA" = 'xnone' && break + _AX_LUA_CHK_IS_INTRP([$ax_cv_pathless_LUA], [], [continue]) + _AX_LUA_CHK_VER([$ax_cv_pathless_LUA], [$1], [$2], [break]) + done + ]) + dnl Set $LUA to the absolute path of $ax_cv_pathless_LUA. + AS_IF([test "x$ax_cv_pathless_LUA" = 'xnone'], + [LUA=':'], + [AC_PATH_PROG([LUA], [$ax_cv_pathless_LUA])]) + ax_display_LUA=$ax_cv_pathless_LUA + ]) + ]) + + AS_IF([test "x$LUA" = 'x:'], + [ dnl Run any user-specified action, or abort. + m4_default([$4], [AC_MSG_ERROR([cannot find suitable Lua interpreter])]) + ], + [ dnl Query Lua for its version number. + AC_CACHE_CHECK([for $ax_display_LUA version], + [ax_cv_lua_version], + [ dnl Get the interpreter version in X.Y format. This should work for + dnl interpreters version 5.0 and beyond. + ax_cv_lua_version=[`$LUA -e ' + -- return a version number in X.Y format + local _, _, ver = string.find(_VERSION, "^Lua (%d+%.%d+)") + print(ver)'`] + ]) + AS_IF([test "x$ax_cv_lua_version" = 'x'], + [AC_MSG_ERROR([invalid Lua version number])]) + AC_SUBST([LUA_VERSION], [$ax_cv_lua_version]) + AC_SUBST([LUA_SHORT_VERSION], [`echo "$LUA_VERSION" | $SED 's|\.||'`]) + + dnl The following check is not supported: + dnl At times (like when building shared libraries) you may want to know + dnl which OS platform Lua thinks this is. + AC_CACHE_CHECK([for $ax_display_LUA platform], + [ax_cv_lua_platform], + [ax_cv_lua_platform=[`$LUA -e 'print("unknown")'`]]) + AC_SUBST([LUA_PLATFORM], [$ax_cv_lua_platform]) + + dnl Use the values of $prefix and $exec_prefix for the corresponding + dnl values of LUA_PREFIX and LUA_EXEC_PREFIX. These are made distinct + dnl variables so they can be overridden if need be. However, the general + dnl consensus is that you shouldn't need this ability. + AC_SUBST([LUA_PREFIX], ['${prefix}']) + AC_SUBST([LUA_EXEC_PREFIX], ['${exec_prefix}']) + + dnl Lua provides no way to query the script directory, and instead + dnl provides LUA_PATH. However, we should be able to make a safe educated + dnl guess. If the built-in search path contains a directory which is + dnl prefixed by $prefix, then we can store scripts there. The first + dnl matching path will be used. + AC_CACHE_CHECK([for $ax_display_LUA script directory], + [ax_cv_lua_luadir], + [ AS_IF([test "x$prefix" = 'xNONE'], + [ax_lua_prefix=$ac_default_prefix], + [ax_lua_prefix=$prefix]) + + dnl Initialize to the default path. + ax_cv_lua_luadir="$LUA_PREFIX/share/lua/$LUA_VERSION" + + dnl Try to find a path with the prefix. + _AX_LUA_FND_PRFX_PTH([$LUA], [$ax_lua_prefix], [script]) + AS_IF([test "x$ax_lua_prefixed_path" != 'x'], + [ dnl Fix the prefix. + _ax_strip_prefix=`echo "$ax_lua_prefix" | $SED 's|.|.|g'` + ax_cv_lua_luadir=`echo "$ax_lua_prefixed_path" | \ + $SED "s|^$_ax_strip_prefix|$LUA_PREFIX|"` + ]) + ]) + AC_SUBST([luadir], [$ax_cv_lua_luadir]) + AC_SUBST([pkgluadir], [\${luadir}/$PACKAGE]) + + dnl Lua provides no way to query the module directory, and instead + dnl provides LUA_PATH. However, we should be able to make a safe educated + dnl guess. If the built-in search path contains a directory which is + dnl prefixed by $exec_prefix, then we can store modules there. The first + dnl matching path will be used. + AC_CACHE_CHECK([for $ax_display_LUA module directory], + [ax_cv_lua_luaexecdir], + [ AS_IF([test "x$exec_prefix" = 'xNONE'], + [ax_lua_exec_prefix=$ax_lua_prefix], + [ax_lua_exec_prefix=$exec_prefix]) + + dnl Initialize to the default path. + ax_cv_lua_luaexecdir="$LUA_EXEC_PREFIX/lib/lua/$LUA_VERSION" + + dnl Try to find a path with the prefix. + _AX_LUA_FND_PRFX_PTH([$LUA], + [$ax_lua_exec_prefix], [module]) + AS_IF([test "x$ax_lua_prefixed_path" != 'x'], + [ dnl Fix the prefix. + _ax_strip_prefix=`echo "$ax_lua_exec_prefix" | $SED 's|.|.|g'` + ax_cv_lua_luaexecdir=`echo "$ax_lua_prefixed_path" | \ + $SED "s|^$_ax_strip_prefix|$LUA_EXEC_PREFIX|"` + ]) + ]) + AC_SUBST([luaexecdir], [$ax_cv_lua_luaexecdir]) + AC_SUBST([pkgluaexecdir], [\${luaexecdir}/$PACKAGE]) + + dnl Run any user specified action. + $3 + ]) +]) + +dnl AX_WITH_LUA is now the same thing as AX_PROG_LUA. +AC_DEFUN([AX_WITH_LUA], +[ + AC_MSG_WARN([[$0 is deprecated, please use AX_PROG_LUA instead]]) + AX_PROG_LUA +]) + + +dnl ========================================================================= +dnl _AX_LUA_CHK_IS_INTRP(PROG, [ACTION-IF-TRUE], [ACTION-IF-FALSE]) +dnl ========================================================================= +AC_DEFUN([_AX_LUA_CHK_IS_INTRP], +[ + dnl A minimal Lua factorial to prove this is an interpreter. This should work + dnl for Lua interpreters version 5.0 and beyond. + _ax_lua_factorial=[`$1 2>/dev/null -e ' + -- a simple factorial + function fact (n) + if n == 0 then + return 1 + else + return n * fact(n-1) + end + end + print("fact(5) is " .. fact(5))'`] + AS_IF([test "$_ax_lua_factorial" = 'fact(5) is 120'], + [$2], [$3]) +]) + + +dnl ========================================================================= +dnl _AX_LUA_CHK_VER(PROG, MINIMUM-VERSION, [TOO-BIG-VERSION], +dnl [ACTION-IF-TRUE], [ACTION-IF-FALSE]) +dnl ========================================================================= +AC_DEFUN([_AX_LUA_CHK_VER], +[ + dnl Check that the Lua version is within the bounds. Only the major and minor + dnl version numbers are considered. This should work for Lua interpreters + dnl version 5.0 and beyond. + _ax_lua_good_version=[`$1 -e ' + -- a script to compare versions + function verstr2num(verstr) + local _, _, majorver, minorver = string.find(verstr, "^(%d+)%.(%d+)") + if majorver and minorver then + return tonumber(majorver) * 100 + tonumber(minorver) + end + end + local minver = verstr2num("$2") + local _, _, trimver = string.find(_VERSION, "^Lua (.*)") + local ver = verstr2num(trimver) + local maxver = verstr2num("$3") or 1e9 + if minver <= ver and ver < maxver then + print("yes") + else + print("no") + end'`] + AS_IF([test "x$_ax_lua_good_version" = "xyes"], + [$4], [$5]) +]) + + +dnl ========================================================================= +dnl _AX_LUA_FND_PRFX_PTH(PROG, PREFIX, SCRIPT-OR-MODULE-DIR) +dnl ========================================================================= +AC_DEFUN([_AX_LUA_FND_PRFX_PTH], +[ + dnl Get the script or module directory by querying the Lua interpreter, + dnl filtering on the given prefix, and selecting the shallowest path. If no + dnl path is found matching the prefix, the result will be an empty string. + dnl The third argument determines the type of search, it can be 'script' or + dnl 'module'. Supplying 'script' will perform the search with package.path + dnl and LUA_PATH, and supplying 'module' will search with package.cpath and + dnl LUA_CPATH. This is done for compatibility with Lua 5.0. + + ax_lua_prefixed_path=[`$1 -e ' + -- get the path based on search type + local searchtype = "$3" + local paths = "" + if searchtype == "script" then + paths = (package and package.path) or LUA_PATH + elseif searchtype == "module" then + paths = (package and package.cpath) or LUA_CPATH + end + -- search for the prefix + local prefix = "'$2'" + local minpath = "" + local mindepth = 1e9 + string.gsub(paths, "(@<:@^;@:>@+)", + function (path) + path = string.gsub(path, "%?.*$", "") + path = string.gsub(path, "/@<:@^/@:>@*$", "") + if string.find(path, prefix) then + local depth = string.len(string.gsub(path, "@<:@^/@:>@", "")) + if depth < mindepth then + minpath = path + mindepth = depth + end + end + end) + print(minpath)'`] +]) + + +dnl ========================================================================= +dnl AX_LUA_HEADERS([ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) +dnl ========================================================================= +AC_DEFUN([AX_LUA_HEADERS], +[ + dnl Check for LUA_VERSION. + AC_MSG_CHECKING([if LUA_VERSION is defined]) + AS_IF([test "x$LUA_VERSION" != 'x'], + [AC_MSG_RESULT([yes])], + [ AC_MSG_RESULT([no]) + AC_MSG_ERROR([cannot check Lua headers without knowing LUA_VERSION]) + ]) + + dnl Make LUA_INCLUDE a precious variable. + AC_ARG_VAR([LUA_INCLUDE], [The Lua includes, e.g. -I/usr/include/lua5.1]) + + dnl Some default directories to search. + LUA_SHORT_VERSION=`echo "$LUA_VERSION" | $SED 's|\.||'` + m4_define_default([_AX_LUA_INCLUDE_LIST], + [ /usr/include/lua$LUA_VERSION \ + /usr/include/lua-$LUA_VERSION \ + /usr/include/lua/$LUA_VERSION \ + /usr/include/lua$LUA_SHORT_VERSION \ + /usr/local/include/lua$LUA_VERSION \ + /usr/local/include/lua-$LUA_VERSION \ + /usr/local/include/lua/$LUA_VERSION \ + /usr/local/include/lua$LUA_SHORT_VERSION \ + ]) + + dnl Try to find the headers. + _ax_lua_saved_cppflags=$CPPFLAGS + CPPFLAGS="$CPPFLAGS $LUA_INCLUDE" + AC_CHECK_HEADERS([lua.h lualib.h lauxlib.h luaconf.h]) + CPPFLAGS=$_ax_lua_saved_cppflags + + dnl Try some other directories if LUA_INCLUDE was not set. + AS_IF([test "x$LUA_INCLUDE" = 'x' && + test "x$ac_cv_header_lua_h" != 'xyes'], + [ dnl Try some common include paths. + for _ax_include_path in _AX_LUA_INCLUDE_LIST; do + test ! -d "$_ax_include_path" && continue + + AC_MSG_CHECKING([for Lua headers in]) + AC_MSG_RESULT([$_ax_include_path]) + + AS_UNSET([ac_cv_header_lua_h]) + AS_UNSET([ac_cv_header_lualib_h]) + AS_UNSET([ac_cv_header_lauxlib_h]) + AS_UNSET([ac_cv_header_luaconf_h]) + + _ax_lua_saved_cppflags=$CPPFLAGS + CPPFLAGS="$CPPFLAGS -I$_ax_include_path" + AC_CHECK_HEADERS([lua.h lualib.h lauxlib.h luaconf.h]) + CPPFLAGS=$_ax_lua_saved_cppflags + + AS_IF([test "x$ac_cv_header_lua_h" = 'xyes'], + [ LUA_INCLUDE="-I$_ax_include_path" + break + ]) + done + ]) + + AS_IF([test "x$ac_cv_header_lua_h" = 'xyes'], + [ dnl Make a program to print LUA_VERSION defined in the header. + dnl TODO It would be really nice if we could do this without compiling a + dnl program, then it would work when cross compiling. But I'm not sure how + dnl to do this reliably. For now, assume versions match when cross compiling. + + AS_IF([test "x$cross_compiling" != 'xyes'], + [ AC_CACHE_CHECK([for Lua header version], + [ax_cv_lua_header_version], + [ _ax_lua_saved_cppflags=$CPPFLAGS + CPPFLAGS="$CPPFLAGS $LUA_INCLUDE" + AC_RUN_IFELSE( + [ AC_LANG_SOURCE([[ +#include +#include +#include +int main(int argc, char ** argv) +{ + if(argc > 1) printf("%s", LUA_VERSION); + exit(EXIT_SUCCESS); +} +]]) + ], + [ ax_cv_lua_header_version=`./conftest$EXEEXT p | \ + $SED -n "s|^Lua \(@<:@0-9@:>@\{1,\}\.@<:@0-9@:>@\{1,\}\).\{0,\}|\1|p"` + ], + [ax_cv_lua_header_version='unknown']) + CPPFLAGS=$_ax_lua_saved_cppflags + ]) + + dnl Compare this to the previously found LUA_VERSION. + AC_MSG_CHECKING([if Lua header version matches $LUA_VERSION]) + AS_IF([test "x$ax_cv_lua_header_version" = "x$LUA_VERSION"], + [ AC_MSG_RESULT([yes]) + ax_header_version_match='yes' + ], + [ AC_MSG_RESULT([no]) + ax_header_version_match='no' + ]) + ], + [ AC_MSG_WARN([cross compiling so assuming header version number matches]) + ax_header_version_match='yes' + ]) + ]) + + dnl Was LUA_INCLUDE specified? + AS_IF([test "x$ax_header_version_match" != 'xyes' && + test "x$LUA_INCLUDE" != 'x'], + [AC_MSG_ERROR([cannot find headers for specified LUA_INCLUDE])]) + + dnl Test the final result and run user code. + AS_IF([test "x$ax_header_version_match" = 'xyes'], [$1], + [m4_default([$2], [AC_MSG_ERROR([cannot find Lua includes])])]) +]) + +dnl AX_LUA_HEADERS_VERSION no longer exists, use AX_LUA_HEADERS. +AC_DEFUN([AX_LUA_HEADERS_VERSION], +[ + AC_MSG_WARN([[$0 is deprecated, please use AX_LUA_HEADERS instead]]) +]) + + +dnl ========================================================================= +dnl AX_LUA_LIBS([ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) +dnl ========================================================================= +AC_DEFUN([AX_LUA_LIBS], +[ + dnl TODO Should this macro also check various -L flags? + + dnl Check for LUA_VERSION. + AC_MSG_CHECKING([if LUA_VERSION is defined]) + AS_IF([test "x$LUA_VERSION" != 'x'], + [AC_MSG_RESULT([yes])], + [ AC_MSG_RESULT([no]) + AC_MSG_ERROR([cannot check Lua libs without knowing LUA_VERSION]) + ]) + + dnl Make LUA_LIB a precious variable. + AC_ARG_VAR([LUA_LIB], [The Lua library, e.g. -llua5.1]) + + AS_IF([test "x$LUA_LIB" != 'x'], + [ dnl Check that LUA_LIBS works. + _ax_lua_saved_libs=$LIBS + LIBS="$LIBS $LUA_LIB" + AC_SEARCH_LIBS([lua_load], [], + [_ax_found_lua_libs='yes'], + [_ax_found_lua_libs='no']) + LIBS=$_ax_lua_saved_libs + + dnl Check the result. + AS_IF([test "x$_ax_found_lua_libs" != 'xyes'], + [AC_MSG_ERROR([cannot find libs for specified LUA_LIB])]) + ], + [ dnl First search for extra libs. + _ax_lua_extra_libs='' + + _ax_lua_saved_libs=$LIBS + LIBS="$LIBS $LUA_LIB" + AC_SEARCH_LIBS([exp], [m]) + AC_SEARCH_LIBS([dlopen], [dl]) + LIBS=$_ax_lua_saved_libs + + AS_IF([test "x$ac_cv_search_exp" != 'xno' && + test "x$ac_cv_search_exp" != 'xnone required'], + [_ax_lua_extra_libs="$_ax_lua_extra_libs $ac_cv_search_exp"]) + + AS_IF([test "x$ac_cv_search_dlopen" != 'xno' && + test "x$ac_cv_search_dlopen" != 'xnone required'], + [_ax_lua_extra_libs="$_ax_lua_extra_libs $ac_cv_search_dlopen"]) + + dnl Try to find the Lua libs. + _ax_lua_saved_libs=$LIBS + LIBS="$LIBS $LUA_LIB" + AC_SEARCH_LIBS([lua_load], + [ lua$LUA_VERSION \ + lua$LUA_SHORT_VERSION \ + lua-$LUA_VERSION \ + lua-$LUA_SHORT_VERSION \ + lua \ + ], + [_ax_found_lua_libs='yes'], + [_ax_found_lua_libs='no'], + [$_ax_lua_extra_libs]) + LIBS=$_ax_lua_saved_libs + + AS_IF([test "x$ac_cv_search_lua_load" != 'xno' && + test "x$ac_cv_search_lua_load" != 'xnone required'], + [LUA_LIB="$ac_cv_search_lua_load $_ax_lua_extra_libs"]) + ]) + + dnl Test the result and run user code. + AS_IF([test "x$_ax_found_lua_libs" = 'xyes'], [$1], + [m4_default([$2], [AC_MSG_ERROR([cannot find Lua libs])])]) +]) + + +dnl ========================================================================= +dnl AX_LUA_READLINE([ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) +dnl ========================================================================= +AC_DEFUN([AX_LUA_READLINE], +[ + AX_LIB_READLINE + AS_IF([test "x$ac_cv_header_readline_readline_h" != 'x' && + test "x$ac_cv_header_readline_history_h" != 'x'], + [ LUA_LIBS_CFLAGS="-DLUA_USE_READLINE $LUA_LIBS_CFLAGS" + $1 + ], + [$2]) +]) diff --git a/vtysh/extract.pl.in b/vtysh/extract.pl.in index 332fd248ca..4dc34d10ef 100755 --- a/vtysh/extract.pl.in +++ b/vtysh/extract.pl.in @@ -40,7 +40,7 @@ sub scan_file { $cppadd = $fabricd ? "-DFABRICD=1" : ""; - open (FH, "@CPP@ -DHAVE_CONFIG_H -DVTYSH_EXTRACT_PL -Ivtysh/@top_builddir@ -Ivtysh/@top_srcdir@ -Ivtysh/@top_srcdir@/lib -Ivtysh/@top_builddir@/lib -Ivtysh/@top_srcdir@/bgpd -Ivtysh/@top_srcdir@/bgpd/rfapi @CPPFLAGS@ $cppadd $file |"); + open (FH, "@CPP@ -DHAVE_CONFIG_H -DVTYSH_EXTRACT_PL -Ivtysh/@top_builddir@ -Ivtysh/@top_srcdir@ -Ivtysh/@top_srcdir@/lib -Ivtysh/@top_builddir@/lib -Ivtysh/@top_srcdir@/bgpd -Ivtysh/@top_srcdir@/bgpd/rfapi @LUA_INCLUDE@ @CPPFLAGS@ $cppadd $file |"); local $/; undef $/; $line = ; close (FH);