-# 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.
-
-LIBFFI_TARBALL := $(firstword $(wildcard libffi*.tar.gz))
-LIBFFI_DIR := $(subst .tar.gz,,$(LIBFFI_TARBALL))
-
-BINDIST_STAMPS = stamp.ffi
-INSTALL_HEADERS += ffi.h
-STATIC_LIB = libffi.a
-INSTALL_LIBS += $(STATIC_LIB)
-
-# We have to add the GHC version to the name of our dynamic libs, because
-# they will be residing in the system location along with dynamic libs from
-# other GHC installations.
-ifeq "$(Windows)" "YES"
-DYNAMIC_PROG = libffi.dll.a
-DYNAMIC_LIBS = libffi-3.dll
-RENAME_LIBS =
-else
-DYNAMIC_PROG =
-DYNAMIC_LIBS = libffi.so libffi.so.5 libffi.so.5.0.5
-endif
-
-HS_DYN_LIB_NAME=libHSffi-ghc$(ProjectVersion)$(soext)
-
-ifeq "$(BuildSharedLibs)" "YES"
-EnableShared=yes
-else
-EnableShared=no
-endif
-
-ifeq "$(BuildSharedLibs)" "YES"
-INSTALL_LIBS += $(DYNAMIC_LIBS)
-INSTALL_PROGS += $(DYNAMIC_PROGS)
-endif
-
-install all :: $(INSTALL_HEADERS) $(INSTALL_LIBS) $(INSTALL_PROGS)
-
-# We have to fake a non-working ln for configure, so that the fallback
-# option (cp -p) gets used instead. Otherwise the libffi build system
-# will use cygwin symbolic linkks which cannot be read by mingw gcc.
-# The same trick is played by the GMP build in ../gmp.
-
-stamp.ffi.configure:
- $(RM) -rf $(LIBFFI_DIR) build
- $(TAR) -zxf $(LIBFFI_TARBALL)
- mv $(LIBFFI_DIR) build
- chmod +x ln
- (set -o igncr 2>/dev/null) && set -o igncr; export SHELLOPTS; \
- PATH=`pwd`:$$PATH; \
- export PATH; \
- cd build && \
- CC=$(WhatGccIsCalled) $(SHELL) configure \
- --enable-static=yes \
- --enable-shared=$(EnableShared) \
- --host=$(PLATFORM) --build=$(PLATFORM)
-
- # libffi.so needs to be built with the correct soname.
- # NOTE: this builds libffi_convience.so with the incorrect
- # soname, but we don't need that anyway!
- $(CP) build/libtool build/libtool.orig
- sed -e s/soname_spec=.*/soname_spec="$(HS_DYN_LIB_NAME)"/ build/libtool.orig > build/libtool
- touch $@
-
-ffi.h: stamp.ffi.configure
- $(CP) build/include/ffi.h .
-
-stamp.ffi.build: stamp.ffi.configure
- $(MAKE) -C build MAKEFLAGS=
- (cd build; ./libtool --mode=install cp libffi.la $(FPTOOLS_TOP_ABS)/libffi)
- touch $@
-
-$(STATIC_LIB) $(DYNAMIC_LIBS) $(DYNAMIC_PROG): stamp.ffi.build
-
-libHSffi.a libHSffi_p.a: $(STATIC_LIB)
- $(CP) $(STATIC_LIB) $@
-
-all :: libHSffi.a libHSffi_p.a
-
-# The GHCi import lib isn't needed as compiler/ghci/Linker.lhs + rts/Linker.c
-# link the interpreted references to FFI to the compiled FFI.
-# Instead of adding libffi to the list preloaded packages (see
-# compiler/ghci/Linker.lhs:emptyPLS) we generate an empty HSffi.o
-
-HSffi.o: libHSffi.a
- touch empty.c
- $(CC) -c empty.c -o HSffi.o
-
-all :: HSffi.o
-
-ifeq "$(BuildSharedLibs)" "YES"
-$(HS_DYN_LIB_NAME): $(DYNAMIC_LIBS)
- $(CP) $(word 1,$(DYNAMIC_LIBS)) $(HS_DYN_LIB_NAME)
-
-all :: $(HS_DYN_LIB_NAME)
-endif
-
-clean distclean maintainer-clean ::
- $(RM) -f stamp.ffi.configure stamp.ffi.build ffi.h empty.c
- $(RM) -f libffi.a libffi.la $(DYNAMIC_PROG) $(DYNAMIC_LIBS) $(ORIG_DYNAMIC_LIBS)
- $(RM) -rf build
-
-#-----------------------------------------------------------------------------