Makefile

####### Platform specifics

# cut is necessary for Cygwin
PLATFORM_OS := $(shell uname | cut -d_ -f1)

####### Compiler, tools and options

PREFIX = /usr
DEST = $(DESTDIR)/$(PREFIX)/lib
VERSION = 1.0
override CFLAGS += -W -Wall -Wextra -pedantic -std=c99 -c
ifneq ($(PLATFORM_OS), CYGWIN)
	override CFLAGS += -fPIC
endif
SRC = pe.c
RM = rm -f
CC ?= gcc
SYMLINK = ln -sf
ifeq ($(PLATFORM_OS), Darwin)
	STRIP = strip -x
else
	STRIP = strip --strip-unneeded
endif
LIBNAME = libpe
INSTALL = install -m 0644

####### Build rules

all: pe.c pe.h
	$(CC) -o $(LIBNAME).o $(CFLAGS) $(SRC)
ifeq ($(PLATFORM_OS), Linux)
	$(CC) -shared -Wl,-soname,$(LIBNAME).so.1 -o $(LIBNAME).so $(LIBNAME).o
else ifeq ($(PLATFORM_OS), Darwin)
	$(CC) -headerpad_max_install_names -dynamiclib \
		-flat_namespace -install_name $(LIBNAME).$(VERSION).dylib \
		-current_version $(VERSION) -compatibility_version $(VERSION) \
		-o $(LIBNAME).dylib $(LIBNAME).o
else ifeq ($(PLATFORM_OS), CYGWIN)
	$(CC) -shared -o $(LIBNAME).dll $(LIBNAME).o
endif

install:
	test -d $(DEST) || mkdir -p $(DEST)
ifeq ($(PLATFORM_OS), Linux)
	$(STRIP) $(LIBNAME).so
	$(INSTALL) $(LIBNAME).so $(DEST)/$(LIBNAME).so.$(VERSION)
	cd $(DEST); $(SYMLINK) $(LIBNAME).so.$(VERSION) $(LIBNAME).so
	cd $(DEST); $(SYMLINK) $(LIBNAME).so.$(VERSION) $(LIBNAME).so.1
else ifeq ($(PLATFORM_OS), Darwin)
	$(STRIP) $(LIBNAME).dylib
	$(INSTALL) $(LIBNAME).dylib $(DEST)/$(LIBNAME).$(VERSION).dylib
	cd $(DEST); $(SYMLINK) $(LIBNAME).$(VERSION).dylib $(LIBNAME).dylib
	cd $(DEST); $(SYMLINK) $(LIBNAME).$(VERSION).dylib $(LIBNAME).1.dylib
endif

uninstall:
	$(RM) $(DEST)/$(LIBNAME).so* \
		$(DEST)/$(LIBNAME)*.dylib

clean:
	$(RM) $(LIBNAME)*.o \
		$(LIBNAME)*.so \
		$(LIBNAME)*.dylib \
		$(LIBNAME)*.dll