buildroot/package/luasyslog/0002-build-ax_lua.m4-fix-cross-compilation.patch

From aed16d13d881492e8558f9da21be2dffc4ab2c33 Mon Sep 17 00:00:00 2001
From: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Date: Sat, 4 Sep 2021 17:23:58 +0200
Subject: [PATCH] build/ax_lua.m4: fix cross-compilation

Don't try to "find" and "fix" the script and module directories when
cross-compiling as this will give unexpected results such as using
${prefix}/lfs/hdd_v1/rc-buildroot-test/scripts/instance-0/output-1/host/usr/share/lua/5.3
instead of
${prefix}/share/lua/5.3
if the host machine root directory is /usr

Fixes:
 - http://autobuild.buildroot.org/results/09fa6dd9844d6d4694801ec59434dad7a56bf290

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
---
 build/ax_lua.m4 | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/build/ax_lua.m4 b/build/ax_lua.m4
index 23ca774..7c25cfd 100644
--- a/build/ax_lua.m4
+++ b/build/ax_lua.m4
@@ -291,7 +291,7 @@ AC_DEFUN([AX_PROG_LUA],
 
         dnl Try to find a path with the prefix.
         _AX_LUA_FND_PRFX_PTH([$LUA], [$ax_lua_prefix], [package.path])
-        AS_IF([test "x$ax_lua_prefixed_path" != 'x'],
+        AS_IF([test "x$ax_lua_prefixed_path" != 'x' && test "x$cross_compiling" != 'xyes'],
         [ dnl Fix the prefix.
           _ax_strip_prefix=`echo "$ax_lua_prefix" | sed 's|.|.|g'`
           ax_cv_lua_luadir=`echo "$ax_lua_prefixed_path" | \
@@ -318,7 +318,7 @@ AC_DEFUN([AX_PROG_LUA],
         dnl Try to find a path with the prefix.
         _AX_LUA_FND_PRFX_PTH([$LUA],
           [$ax_lua_exec_prefix], [package.cpathd])
-        AS_IF([test "x$ax_lua_prefixed_path" != 'x'],
+        AS_IF([test "x$ax_lua_prefixed_path" != 'x' && test "x$cross_compiling" != 'xyes'],
         [ dnl Fix the prefix.
           _ax_strip_prefix=`echo "$ax_lua_exec_prefix" | sed 's|.|.|g'`
           ax_cv_lua_luaexecdir=`echo "$ax_lua_prefixed_path" | \
-- 
2.32.0