Allow building lpeg into vis

If lpeg is built statically, this allows for a completely static vis
binary that still supports syntax highlighting.

1 files changed, 9 insertions, 0 deletions

diff --git a/vis-lua.c b/vis-lua.c
index 29e94ef..95cfe6e 100644
--- a/vis-lua.c
+++ b/vis-lua.c
@@ -1889,6 +1889,15 @@ void vis_lua_init(Vis *vis) {
 	vis->lua = L;
 	luaL_openlibs(L);
 
+#if CONFIG_BUILTIN_LPEG
+	extern int luaopen_lpeg(lua_State *L);
+	lua_getglobal(L, "package");
+	lua_getfield(L, -1, "preload");
+	lua_pushcfunction(L, luaopen_lpeg);
+	lua_setfield(L, -2, "lpeg");
+	lua_pop(L, 2);
+#endif
+
 	/* remove any relative paths from lua's default package.path */
 	vis_lua_path_strip(vis);