OS ?= $(shell uname)
-LUA_SHLIBS ?= $(shell pkg-config --silence-errors --libs lua5.1)
-LUA_LIBS ?= $(if $(LUA_SHLIBS),$(LUA_SHLIBS),$(firstword $(wildcard /usr/lib/liblua.a /usr/local/lib/liblua.a /opt/local/lib/liblua.a)))
-LUA_CFLAGS ?= $(shell pkg-config --silence-errors --cflags lua5.1)
+LUA_SHLIBS = $(shell pkg-config --silence-errors --libs lua5.1)
+LUA_LIBS = $(if $(LUA_SHLIBS),$(LUA_SHLIBS),$(firstword $(wildcard /usr/lib/liblua.a /usr/local/lib/liblua.a /opt/local/lib/liblua.a)))
+LUA_CFLAGS = $(shell pkg-config --silence-errors --cflags lua5.1)
-CC ?= gcc
-AR ?= ar
-RANLIB ?= ranlib
-CFLAGS ?= -O2
-FPIC ?= -fPIC
-EXTRA_CFLAGS ?= --std=gnu99
-WFLAGS ?= -Wall -Werror -pedantic
-CPPFLAGS ?=
-COMPILE ?= $(CC) $(CPPFLAGS) $(CFLAGS) $(EXTRA_CFLAGS) $(WFLAGS)
+CC = gcc
+AR = ar
+RANLIB = ranlib
+CFLAGS = -O2
+FPIC = -fPIC
+EXTRA_CFLAGS = --std=gnu99
+WFLAGS = -Wall -Werror -pedantic
+CPPFLAGS =
+COMPILE = $(CC) $(CPPFLAGS) $(CFLAGS) $(EXTRA_CFLAGS) $(WFLAGS)
ifeq ($(OS),Darwin)
- SHLIB_FLAGS ?= -bundle -undefined dynamic_lookup
+ SHLIB_FLAGS = -bundle -undefined dynamic_lookup
else
- SHLIB_FLAGS ?= -shared
+ SHLIB_FLAGS = -shared
endif
-LINK ?= $(CC)
+LINK = $(CC)