diff options
Diffstat (limited to 'loadlib.c')
-rw-r--r-- | loadlib.c | 17 |
1 files changed, 15 insertions, 2 deletions
@@ -1,5 +1,5 @@ | |||
1 | /* | 1 | /* |
2 | ** $Id: loadlib.c,v 1.106 2011/11/28 17:27:51 roberto Exp roberto $ | 2 | ** $Id: loadlib.c,v 1.107 2011/11/30 12:58:57 roberto Exp roberto $ |
3 | ** Dynamic library loader for Lua | 3 | ** Dynamic library loader for Lua |
4 | ** See Copyright Notice in lua.h | 4 | ** See Copyright Notice in lua.h |
5 | ** | 5 | ** |
@@ -615,12 +615,25 @@ static int ll_seeall (lua_State *L) { | |||
615 | /* auxiliary mark (for internal use) */ | 615 | /* auxiliary mark (for internal use) */ |
616 | #define AUXMARK "\1" | 616 | #define AUXMARK "\1" |
617 | 617 | ||
618 | |||
619 | /* | ||
620 | ** return registry.LUA_NOENV as a boolean | ||
621 | */ | ||
622 | static int noenv (lua_State *L) { | ||
623 | int b; | ||
624 | lua_getfield(L, LUA_REGISTRYINDEX, "LUA_NOENV"); | ||
625 | b = lua_toboolean(L, -1); | ||
626 | lua_pop(L, 1); /* remove value */ | ||
627 | return b; | ||
628 | } | ||
629 | |||
630 | |||
618 | static void setpath (lua_State *L, const char *fieldname, const char *envname1, | 631 | static void setpath (lua_State *L, const char *fieldname, const char *envname1, |
619 | const char *envname2, const char *def) { | 632 | const char *envname2, const char *def) { |
620 | const char *path = getenv(envname1); | 633 | const char *path = getenv(envname1); |
621 | if (path == NULL) /* no environment variable? */ | 634 | if (path == NULL) /* no environment variable? */ |
622 | path = getenv(envname2); /* try alternative name */ | 635 | path = getenv(envname2); /* try alternative name */ |
623 | if (path == NULL) /* no environment variable? */ | 636 | if (path == NULL || noenv(L)) /* no environment variable? */ |
624 | lua_pushstring(L, def); /* use default */ | 637 | lua_pushstring(L, def); /* use default */ |
625 | else { | 638 | else { |
626 | /* replace ";;" by ";AUXMARK;" and then AUXMARK by default path */ | 639 | /* replace ";;" by ";AUXMARK;" and then AUXMARK by default path */ |