Makefile.libgmp

# Copyright 2012, Square, Inc.

GMP=gmp-6.1.1

# Converts the architecture name as returned from uname -m to a format that
# the JVM understands. ARCH is part of the platform string that the JVM
# will look at when searching directories for a native library.
ARCH=$(shell uname -m | sed -e 's/x86_64/x86-64/g' \
                            -e 's/amd64/x86-64/g' \
                            -e 's/i386/x86/g' \
                            -e 's/i686/x86/g' \
                            -e 's/powerpc/ppc/g' \
                            -e 's/powerpc64/ppc64/g' \
                            -e 's/^arm.*/arm/g')

# Like architecture the JVM has set of predefined OS names, so we need to convert
# the value output from uname to something that the JVM understands.
OS=$(shell uname | sed -e 's/CYGWIN.*/win32/g' \
                       -e 's/MINGW32.*/win32/g' \
                       -e 's/SunOS.*/sunos/g' \
                       -e 's/NetBSD/netbsd/g' \
                       -e 's/GNU\/kFreeBSD/kfreebsd/g' \
                       -e 's/FreeBSD/freebsd/g' \
                       -e 's/OpenBSD/openbsd/g' \
                       -e 's/Darwin.*/darwin/g' \
                       -e 's/AIX.*/aix/g' \
                       -e 's/Linux.*/linux/g')

# The filename for the shared library that was created differs based on the
# platform, so we conditionally set it below.
ifeq ($(OS), darwin)
	LIBGMP=$(GMP)/.libs/libgmp.dylib
	PLATFORM=$(OS)
else ifeq ($(OS)-$(ARCH), sunos-i86pc)
	# uname -m doesn't give us a coherent answer for Solaris platforms, so
	# we have to do an additional inspection
	ARCH=$(shell isainfo -b | sed -e 's/64/x86-64/g' -e 's/32/x86/g')
        LIBGMP=$(GMP)/.libs/libgmp.so
        PLATFORM=$(OS)-$(ARCH)
else
	LIBGMP=$(GMP)/.libs/libgmp.so
	PLATFORM=$(OS)-$(ARCH)
endif

all: $(LIBGMP)

$(GMP).tar.bz2:
	curl -O https://ftp.gnu.org/gnu/gmp/$(GMP).tar.bz2

$(GMP)/configure: $(GMP).tar.bz2
	-mkdir $(GMP)
	$(which sha1sum || which shasum) -c $(GMP).tar.bz2.sha512
	tar -xjf $< -C $(GMP) --strip-components 1
	touch -c $(GMP)/configure

$(GMP)/gmp.h $(GMP)/Makefile: $(GMP)/configure
	cd $(GMP); ./configure --enable-fat --disable-static

$(LIBGMP): $(GMP)/gmp.h $(GMP)/Makefile
	$(MAKE) -C $(GMP)/ all check

install: $(LIBGMP)
	mkdir -p src/main/resources
	cp -f $(GMP)/COPYING.LESSERv3 src/main/resources/COPYING.LIBGMP
	mkdir -p src/main/resources/$(PLATFORM)
	cp -f $< src/main/resources/$(PLATFORM)/

clean:
	rm -rf $(GMP)/ $(GMP).tar.bz2
	git checkout -- src/main/resources/$(PLATFORM)