-LUAJIT_CFLAGS := $(shell pkg-config --cflags luajit 2>/dev/null)
-LUAJIT_LIBS := $(shell pkg-config --libs luajit 2>/dev/null)
-LUA_LIBS := $(shell pkg-config --libs lua 2>/dev/null)
-LUA_CFLAGS := $(shell pkg-config --cflags lua 2>/dev/null)
-ifeq (JIT,$(LUA_IMPLEMENTATION))
- ifeq ($(strip $(LUAJIT_LIBS)),)
- $(error LuaJIT specified via LUA_IMPLEMENTATION=JIT, but library could not be found.)
- endif
- LUA_MESSAGE := linking with selected LuaJIT
- CGIT_LIBS += $(LUAJIT_LIBS)
- CGIT_CFLAGS += $(LUAJIT_CFLAGS)
-else ifeq (VANILLA,$(LUA_IMPLEMENTATION))
- ifeq ($(strip $(LUA_LIBS)),)
- $(error Lua specified via LUA_IMPLEMENTATION=VANILLA, but library could not be found.)
- endif
- LUA_MESSAGE := linking with selected Lua
- CGIT_LIBS += $(LUA_LIBS)
- CGIT_LIBS += $(LUA_CFLAGS)
-else ifneq ($(strip $(LUAJIT_LIBS)),)
- LUA_MESSAGE := linking with autodetected LuaJIT
- CGIT_LIBS += $(LUAJIT_LIBS)
- CGIT_CFLAGS += $(LUAJIT_CFLAGS)
-else ifneq ($(strip $(LUA_LIBS)),)
- LUA_MESSAGE := linking with autodetected Lua
+ifeq ($(LUA_PKGCONFIG),)
+ LUA_PKGCONFIG := $(shell for pc in luajit lua lua5.2 lua5.1; do \
+ $(PKG_CONFIG) --exists $$pc 2>/dev/null && echo $$pc && break; \
+ done)
+ LUA_MODE := autodetected
+else
+ LUA_MODE := specified
+endif
+ifneq ($(LUA_PKGCONFIG),)
+ LUA_MESSAGE := linking with $(LUA_MODE) $(LUA_PKGCONFIG)
+ LUA_LIBS := $(shell $(PKG_CONFIG) --libs $(LUA_PKGCONFIG) 2>/dev/null)
+ LUA_CFLAGS := $(shell $(PKG_CONFIG) --cflags $(LUA_PKGCONFIG) 2>/dev/null)