GHC new build system megapatch

[ghc-hetmet.git] / gmp / ghc.mk

diff --git a/gmp/ghc.mk b/gmp/ghc.mk
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+
+# Compile GMP only if we don't have it already
+#
+# We use GMP's own configuration stuff, because it's all rather hairy
+# and not worth re-implementing in our Makefile framework.
+
+ifeq "$(findstring dyn, $(GhcRTSWays))" "dyn"
+BUILD_SHARED=yes
+else
+BUILD_SHARED=no
+endif
+
+# In a bindist, we don't want to know whether /this/ machine has gmp,
+# but whether the machine the bindist was built on had gmp.
+ifeq "$(BINDIST)" "YES"
+ifeq "$(wildcard gmp/libgmp.a)" ""
+HaveLibGmp = YES
+HaveFrameworkGMP = YES
+else
+HaveLibGmp = NO
+HaveFrameworkGMP = NO
+endif
+endif
+
+ifneq "$(HaveLibGmp)" "YES"
+ifneq "$(HaveFrameworkGMP)" "YES"
+
+INSTALL_LIBS += gmp/libgmp.a
+
+$(eval $(call all-target,gmp_dynamic,gmp/libgmp.a))
+
+ifeq "$(BUILD_SHARED)" "yes"
+$(eval $(call all-target,gmp_dynamic,gmp/libgmp.dll.a gmp/libgmp-3.dll))
+endif
+
+endif
+endif
+
+PLATFORM := $(shell echo $(HOSTPLATFORM) | sed 's/i[567]86/i486/g')
+
+# 2007-09-26
+#     set -o igncr 
+# is not a valid command on non-Cygwin-systems.
+# Let it fail silently instead of aborting the build.
+#
+# 2007-07-05
+# We do
+#     set -o igncr; export SHELLOPTS
+# here as otherwise checking the size of limbs
+# makes the build fall over on Cygwin. See the thread
+# http://www.cygwin.com/ml/cygwin/2006-12/msg00011.html
+# for more details.
+
+# 2007-07-05
+# Passing
+#     as_ln_s='cp -p'
+# isn't sufficient to stop cygwin using symlinks the mingw gcc can't
+# follow, as it isn't used consistently. Instead we put an ln.bat in
+# path that always fails.
+
+# We use a tarball like gmp-4.2.4-nodoc.tar.bz2, which is
+# gmp-4.2.4.tar.bz2 repacked without the doc/ directory contents.
+# That's because the doc/ directory contents are under the GFDL,
+# which causes problems for Debian.
+
+GMP_TARBALL := $(wildcard gmp/tarball/gmp*.tar.bz2)
+GMP_DIR := $(patsubst gmp/tarball/%-nodoc.tar.bz2,%,$(GMP_TARBALL))
+
+# XXX INSTALL_HEADERS += gmp.h
+
+gmp/libgmp.a:
+       $(RM) -rf $(GMP_DIR) gmp/gmpbuild
+       cd gmp && $(TAR) -jxf ../$(GMP_TARBALL)
+       mv gmp/$(GMP_DIR) gmp/gmpbuild
+       chmod +x gmp/ln
+       cd gmp; (set -o igncr 2>/dev/null) && set -o igncr; export SHELLOPTS; \
+           PATH=`pwd`:$$PATH; \
+           export PATH; \
+           cd gmpbuild && \
+           CC=$(WhatGccIsCalled) $(SHELL) configure \
+                 --enable-shared=no --host=$(PLATFORM) --build=$(PLATFORM)
+       $(MAKE) -C gmp/gmpbuild MAKEFLAGS=
+       $(CP) gmp/gmpbuild/.libs/libgmp.a gmp/
+       $(RANLIB) gmp/libgmp.a
+
+$(eval $(call clean-target,gmp,,\
+  gmp/libgmp.a gmp/gmpbuild gmp/$(GMP_DIR)))
+
+# XXX TODO:
+#stamp.gmp.shared:
+#      $(RM) -rf $(GMP_DIR) gmpbuild-shared
+#      $(TAR) -zxf $(GMP_TARBALL)
+#      mv $(GMP_DIR) gmpbuild-shared
+#      chmod +x ln
+#      (set -o igncr 2>/dev/null) && set -o igncr; export SHELLOPTS; \
+#          PATH=`pwd`:$$PATH; \
+#          export PATH; \
+#          cd gmpbuild-shared && \
+#          CC=$(WhatGccIsCalled) $(SHELL) configure \
+#                --enable-shared=yes --disable-static --host=$(PLATFORM) --build=$(PLATFORM)
+#      touch $@
+#
+#gmp.h: stamp.gmp.static
+#      $(CP) gmpbuild/gmp.h .
+#
+#libgmp.a: stamp.gmp.static
+#
+#libgmp-3.dll: stamp.gmp.shared
+#      $(MAKE) -C gmpbuild-shared MAKEFLAGS=
+#      $(CP) gmpbuild-shared/.libs/libgmp-3.dll .
+#
+#libgmp.dll.a: libgmp-3.dll
+#      $(CP) gmpbuild-shared/.libs/libgmp.dll.a .
+
+## GMP takes a long time to build, but changes rarely.  Hence we don't
+## bother cleaning it before validating, because that adds a
+## significant overhead to validation.
+#ifeq "$(Validating)" "NO"
+#clean distclean maintainer-clean ::
+#      $(RM) -f stamp.gmp.static stamp.gmp.shared
+#      $(RM) -rf gmpbuild
+#      $(RM) -rf gmpbuild-shared
+#endif
+