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CC ?= clang
ifeq "$(ARCH)" ""
ARCH = x86_64
endif
ifeq "$(OS)" ""
OS = $(shell uname -s)
endif
CFLAGS ?= -g -O0
CWD := $(shell pwd)
LIB_PREFIX := lib
ifeq "$(OS)" "Darwin"
CFLAGS += -arch $(ARCH)
DS := dsymutil
LD_FLAGS := -dynamiclib
LIB_INDIRECT := $(LIB_PREFIX)indirect.dylib
LIB_REEXPORT := $(LIB_PREFIX)reexport.dylib
EXEC_PATH := "@executable_path"
EXEC_PATH_INDIRECT := -install_name $(EXEC_PATH)/$(LIB_INDIRECT)
EXEC_PATH_REEXPORT := -install_name $(EXEC_PATH)/$(LIB_REEXPORT)
endif
all: a.out $(LIB_INDIRECT) $(LIB_REEXPORT)
a.out: main.o $(LIB_INDIRECT) $(LIB_REEXPORT)
$(CC) $(CFLAGS) -o a.out main.o -L. $(LIB_INDIRECT) $(LIB_REEXPORT)
main.o: main.c
$(CC) $(CFLAGS) -c main.c
$(LIB_INDIRECT): indirect.o
$(CC) $(CFLAGS) $(LD_FLAGS) $(EXEC_PATH_INDIRECT) -o $(LIB_INDIRECT) indirect.o
if [ "$(OS)" = "Darwin" ]; then dsymutil $(LIB_INDIRECT); fi
indirect.o: indirect.c
$(CC) $(CFLAGS) -c indirect.c
$(LIB_REEXPORT): reexport.o $(LIB_INDIRECT)
$(CC) $(CFLAGS) $(LD_FLAGS) $(EXEC_PATH_REEXPORT) -o $(LIB_REEXPORT) reexport.o -L. -lindirect -Wl,-alias_list,$(CWD)/alias.list
if [ "$(OS)" = "Darwin" ]; then dsymutil $(LIB_REEXPORT); fi
reexport.o: reexport.c
$(CC) $(CFLAGS) -c reexport.c
clean:
rm -rf $(wildcard *.o *~ *.dylib *.so a.out *.dSYM)
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