2 # Makefile for musl (requires GNU make)
4 # This is how simple every makefile should be...
5 # No, I take that back - actually most should be less than half this size.
7 # Use config.mak to override any of the following variables.
8 # Do not make changes here.
11 exec_prefix = /usr/local
12 bindir = $(exec_prefix)/bin
14 prefix = /usr/local/musl
15 includedir = $(prefix)/include
16 libdir = $(prefix)/lib
18 SRCS = $(sort $(wildcard src/*/*.c))
20 LOBJS = $(OBJS:.o=.lo)
21 GENH = include/bits/alltypes.h
23 CFLAGS = -Os -nostdinc -ffreestanding -std=c99 -D_XOPEN_SOURCE=700 -pipe
24 LDFLAGS = -nostdlib -shared -Wl,-Bsymbolic
25 INC = -I./include -I./src/internal -I./arch/$(ARCH)
27 AR = $(CROSS_COMPILE)ar
28 RANLIB = $(CROSS_COMPILE)ranlib
29 OBJCOPY = $(CROSS_COMPILE)objcopy
31 ALL_INCLUDES = $(sort $(wildcard include/*.h include/*/*.h) $(GENH))
33 EMPTY_LIB_NAMES = m rt pthread crypt util xnet resolv
34 EMPTY_LIBS = $(EMPTY_LIB_NAMES:%=lib/lib%.a)
35 CRT_LIBS = lib/crt1.o lib/crti.o lib/crtn.o
36 LIBC_LIBS = lib/libc.a
37 ALL_LIBS = $(LIBC_LIBS) $(CRT_LIBS) $(EMPTY_LIBS)
39 ALL_TOOLS = tools/musl-gcc
43 all: $(ALL_LIBS) $(ALL_TOOLS)
45 install: $(ALL_LIBS:lib/%=$(DESTDIR)$(libdir)/%) $(ALL_INCLUDES:include/%=$(DESTDIR)$(includedir)/%) $(ALL_TOOLS:tools/%=$(DESTDIR)$(bindir)/%)
51 rm -f $(ALL_LIBS) lib/*
57 @test "$(ARCH)" || { echo "Please set ARCH in config.mak before running make." ; exit 1 ; }
58 ln -sf ../arch/$(ARCH)/bits $@
60 include/bits/alltypes.h.sh: include/bits
62 include/bits/alltypes.h: include/bits/alltypes.h.sh
66 $(CC) $(CFLAGS) $(INC) -c -o $@ $<
69 $(CC) $(CFLAGS) $(INC) -c -o $@ $<
72 $(CC) $(CFLAGS) $(INC) $(PIC) -c -o $@ $<
75 $(CC) $(CFLAGS) $(INC) $(PIC) -c -o $@ $<
80 lib/libc.so: $(LOBJS) lib
81 $(CC) $(LDFLAGS) -o $@ $(LOBJS) -lgcc
82 $(OBJCOPY) --weaken $@
84 lib/libc.a: $(OBJS) lib
95 tools/musl-gcc: tools/gen-musl-gcc.sh config.mak
96 sh $< "$(prefix)" > $@ || { rm -f $@ ; exit 1 ; }
99 $(DESTDIR)$(bindir)/%: tools/%
102 $(DESTDIR)$(prefix)/%: %
103 install -D -m 644 $< $@
105 .PRECIOUS: $(CRT_LIBS:lib/%=crt/%)
107 .PHONY: all clean install