TOP=..
+DONT_WANT_STD_GHCI_LIB_RULE=YES
+DONT_WANT_STD_LIBRARY=YES
include $(TOP)/mk/boilerplate.mk
+# We package libffi as Haskell package for two reasons:
+
+# 1) GHC uses different names for shared and static libs, so it can
+# choose the lib variant to link with on its own. With regular
+# libtool styled shared lib names, the linker would interfer and
+# link against the shared lib variant even when GHC runs in -static
+# mode.
+# 2) The first issue isn't a problem when a shared lib of libffi would
+# be installed in system locations, but we do not assume that. So,
+# when running in -dynamic mode, we must either install libffi to
+# system locations ourselves, or we must add its location to
+# respective environment variable, (DY)LD_LIBRARY_PATH etc...before
+# we call dynamically linked binaries. Especially, the latter is
+# necessary as GHC calls binary it produced before its installation
+# phase. However, both mechanism, installing to system locations or
+# modifying (DY)LD_LIBRARY_PATH, are already in place for Haskell
+# packages so with packaging libffi as Haskell package we reuse
+# them naturally.
+
+PACKAGE=ffi
# -----------------------------------------------------------------------------
-# This Makefile is copied from the one we use for GMP in ../gmp.
#
# We use libffi's own configuration stuff.
LIBFFI_TARBALL := $(firstword $(wildcard libffi*.tar.gz))
LIBFFI_DIR := $(subst .tar.gz,,$(LIBFFI_TARBALL))
-ifeq "$(findstring dyn, $(GhcRTSWays))" "dyn"
-BUILD_SHARED=yes
+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
-BUILD_SHARED=no
+DYNAMIC_PROG =
+DYNAMIC_LIBS = libffi.so libffi.so.5 libffi.so.5.0.5
endif
-BINDIST_STAMPS = stamp.ffi.static
-INSTALL_HEADERS += ffi.h
-INSTALL_LIBS += libffi.a
+HS_DYN_LIB_NAME=libHSffi-ghc$(ProjectVersion)$(soext)
+
+ifeq "$(BuildSharedLibs)" "YES"
+EnableShared=yes
+else
+EnableShared=no
+endif
-ifeq "$(BUILD_SHARED)" "yes"
-BINDIST_STAMPS += stamp.ffi.shared
-INSTALL_LIBS += libffi.dll.a
-INSTALL_PROGS += libffi-3.dll
+ifeq "$(BuildSharedLibs)" "YES"
+INSTALL_LIBS += $(DYNAMIC_LIBS)
+INSTALL_PROGS += $(DYNAMIC_PROGS)
endif
install all :: $(INSTALL_HEADERS) $(INSTALL_LIBS) $(INSTALL_PROGS)
# 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.static:
+stamp.ffi.configure:
$(RM) -rf $(LIBFFI_DIR) build
$(TAR) -zxf $(LIBFFI_TARBALL)
mv $(LIBFFI_DIR) build
export PATH; \
cd build && \
CC=$(WhatGccIsCalled) $(SHELL) configure \
- --enable-shared=no --host=$(PLATFORM) --build=$(PLATFORM)
- touch $@
-
-stamp.ffi.shared:
- $(RM) -rf $(LIBFFI_DIR) build-shared
- $(TAR) -zxf $(LIBFFI_TARBALL)
- mv $(LIBFFI_DIR) build-shared
- chmod +x ln
- (set -o igncr 2>/dev/null) && set -o igncr; export SHELLOPTS; \
- PATH=`pwd`:$$PATH; \
- export PATH; \
- cd build-shared && \
- CC=$(WhatGccIsCalled) $(SHELL) configure \
- --enable-shared=yes --disable-static --host=$(PLATFORM) --build=$(PLATFORM)
+ --enable-static=yes \
+ --enable-shared=$(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!
+ sed -i -e s/soname_spec=.*/soname_spec="$(HS_DYN_LIB_NAME)"/ build/libtool
touch $@
-ffi.h: stamp.ffi.static
+ffi.h: stamp.ffi.configure
$(CP) build/include/ffi.h .
-libffi.a: stamp.ffi.static
+stamp.ffi.build: stamp.ffi.configure
$(MAKE) -C build MAKEFLAGS=
- $(CP) build/.libs/libffi.a .
- $(RANLIB) libffi.a
+ (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
-libffi-3.dll: stamp.ffi.shared
- $(MAKE) -C build-shared MAKEFLAGS=
- $(CP) build-shared/.libs/libffi-3.dll .
+# 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
-libffi.dll.a: libffi-3.dll
- $(CP) build-shared/.libs/libffi.dll.a .
+HSffi.o: libHSffi.a
+ ld -r -o HSffi.o /dev/null # this is intentional
+# $(RM) -fr unpack
+# (mkdir unpack; cd unpack; ar x ../libHSffi.a; ld -r -o ../HSffi.o *.o)
+# $(RM) -fr unpack
+
+all :: HSffi.o
+
+ifeq "$(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.static stamp.ffi.shared ffi.h
- $(RM) -f libffi.a libffi-3.dll libffi.dll.a
+ $(RM) -f stamp.ffi.configure stamp.ffi.build ffi.h
+ $(RM) -f libffi.a libffi.la $(DYNAMIC_PROG) $(DYNAMIC_LIBS) $(ORIG_DYNAMIC_LIBS)
$(RM) -rf build
- $(RM) -rf build-shared
#-----------------------------------------------------------------------------
#
include $(TOP)/mk/target.mk
-binary-dist:
- $(INSTALL_DIR) $(BIN_DIST_DIR)/libffi
- $(INSTALL_DATA) Makefile $(BIN_DIST_DIR)/libffi/
-ifneq "$(HaveLibFFI)" "YES"
- $(INSTALL_DATA) $(BINDIST_STAMPS) $(BIN_DIST_DIR)/libffi/
- ifneq "$(INSTALL_PROGS)" ""
- $(INSTALL_DATA) $(INSTALL_PROGS) $(BIN_DIST_DIR)/libffi/
- endif
- ifneq "$(INSTALL_LIBS)" ""
- $(INSTALL_DATA) $(INSTALL_LIBS) $(BIN_DIST_DIR)/libffi/
- endif
- ifneq "$(INSTALL_HEADERS)" ""
- $(INSTALL_HEADER) $(INSTALL_HEADERS) $(BIN_DIST_DIR)/libffi/
- endif
-endif
+BINDIST_EXTRAS += $(BINDIST_STAMPS)
+BINDIST_EXTRAS += $(INSTALL_PROGS)
+BINDIST_EXTRAS += $(INSTALL_LIBS)
+BINDIST_EXTRAS += $(INSTALL_HEADERS)
+include $(TOP)/mk/bindist.mk
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