Some compilation options configurable from makefile

Compilation options LUA_COMPAT_GLOBAL, LUA_COMPAT_LOOPVAR, and
LUA_READLINELIB do not affect the API, so they can be changed
through the make file.

1 files changed, 10 insertions, 2 deletions

diff --git a/luaconf.h b/luaconf.h
index f076c984..1b72e338 100644
--- a/luaconf.h
+++ b/luaconf.h
@@ -70,15 +70,19 @@
 #if defined(LUA_USE_LINUX)
 #define LUA_USE_POSIX
 #define LUA_USE_DLOPEN          /* needs an extra library: -ldl */
+#if !defined(LUA_READLINELIB)
 #define LUA_READLINELIB         "libreadline.so"
 #endif
+#endif
 
 
 #if defined(LUA_USE_MACOSX)
 #define LUA_USE_POSIX
 #define LUA_USE_DLOPEN          /* macOS does not need -ldl */
+#if !defined(LUA_READLINELIB)
 #define LUA_READLINELIB         "libedit.dylib"
 #endif
+#endif
 
 
 #if defined(LUA_USE_IOS)
@@ -339,14 +343,18 @@
 /*
 @@ LUA_COMPAT_GLOBAL avoids 'global' being a reserved word
 */
-#define LUA_COMPAT_GLOBAL
+#if !defined(LUA_COMPAT_GLOBAL)
+#define LUA_COMPAT_GLOBAL       1
+#endif
 
 
 /*
 @@ LUA_COMPAT_LOOPVAR makes for-loop control variables not read-only,
 ** as they were in previous versions.
 */
-/* #define LUA_COMPAT_LOOPVAR */
+#if !defined(LUA_COMPAT_LOOPVAR)
+#define LUA_COMPAT_LOOPVAR      0
+#endif
 
 
 /*