libffi/ghc.mk

   1 # -----------------------------------------------------------------------------
   2 #
   3 # (c) 2009 The University of Glasgow
   4 #
   5 # This file is part of the GHC build system.
   6 #
   7 # To understand how the build system works and how to modify it, see
   8 #      http://hackage.haskell.org/trac/ghc/wiki/Building/Architecture
   9 #      http://hackage.haskell.org/trac/ghc/wiki/Building/Modifying
  10 #
  11 # -----------------------------------------------------------------------------
  12
  13
  14 # We package libffi as Haskell package for two reasons:
  15
  16 # 1) GHC uses different names for shared and static libs, so it can
  17 #    choose the lib variant to link with on its own. With regular
  18 #    libtool styled shared lib names, the linker would interfer and
  19 #    link against the shared lib variant even when GHC runs in -static
  20 #    mode.
  21 # 2) The first issue isn't a problem when a shared lib of libffi would
  22 #    be installed in system locations, but we do not assume that. So,
  23 #    when running in -dynamic mode, we must either install libffi to
  24 #    system locations ourselves, or we must add its location to
  25 #    respective environment variable, (DY)LD_LIBRARY_PATH etc...before
  26 #    we call dynamically linked binaries. Especially, the latter is
  27 #    necessary as GHC calls binary it produced before its installation
  28 #    phase. However, both mechanism, installing to system locations or
  29 #    modifying (DY)LD_LIBRARY_PATH, are already in place for Haskell
  30 #    packages so with packaging libffi as Haskell package we reuse
  31 #    them naturally.
  32
  33 # -----------------------------------------------------------------------------
  34 #
  35 # We use libffi's own configuration stuff.
  36
  37 PLATFORM := $(shell echo $(HOSTPLATFORM) | sed 's/i[567]86/i486/g')
  38
  39 # 2007-07-05
  40 # Passing
  41 #     as_ln_s='cp -p'
  42 # isn't sufficient to stop cygwin using symlinks the mingw gcc can't
  43 # follow, as it isn't used consistently. Instead we put an ln.bat in
  44 # path that always fails.
  45
  46 ifeq "$(BuildSharedLibs)" "YES"
  47 libffi_STAMP_CONFIGURE = libffi/stamp.ffi.configure-shared
  48 libffi_STAMP_BUILD     = libffi/stamp.ffi.build-shared
  49 else
  50 libffi_STAMP_CONFIGURE = libffi/stamp.ffi.configure
  51 libffi_STAMP_BUILD     = libffi/stamp.ffi.build
  52 endif
  53
  54 BINDIST_STAMPS = libffi/stamp.ffi.build libfii/stamp.ffi.configure
  55
  56 INSTALL_HEADERS   += libffi/dist-install/build/ffi.h \
  57                      libffi/dist-install/build/ffitarget.h
  58 libffi_STATIC_LIB  = libffi/dist-install/build/libffi.a
  59 INSTALL_LIBS      += libffi/dist-install/build/libHSffi.a \
  60                      libffi/dist-install/build/libHSffi_p.a \
  61                      libffi/dist-install/build/HSffi.o
  62
  63 # We have to add the GHC version to the name of our dynamic libs, because
  64 # they will be residing in the system location along with dynamic libs from
  65 # other GHC installations.
  66
  67 libffi_HS_DYN_LIB_NAME = libHSffi$(dyn_libsuf)
  68 libffi_HS_DYN_LIB      = libffi/dist-install/build/$(libffi_HS_DYN_LIB_NAME)
  69
  70 ifeq "$(Windows)" "YES"
  71 libffi_DYNAMIC_PROG = $(libffi_HS_DYN_LIB).a
  72 libffi_DYNAMIC_LIBS = $(libffi_HS_DYN_LIB)
  73 else
  74 libffi_DYNAMIC_PROG =
  75 ifeq "$(darwin_TARGET_OS)" "1"
  76 libffi_DYNAMIC_LIBS = libffi/dist-install/build/libffi$(soext) \
  77                       libffi/dist-install/build/libffi.5$(soext)
  78 else
  79 libffi_DYNAMIC_LIBS = libffi/dist-install/build/libffi.so \
  80                       libffi/dist-install/build/libffi.so.5
  81 endif
  82 endif
  83
  84 ifeq "$(BuildSharedLibs)" "YES"
  85 libffi_EnableShared=yes
  86 else
  87 libffi_EnableShared=no
  88 endif
  89
  90 ifeq "$(BuildSharedLibs)" "YES"
  91 INSTALL_LIBS  += $(libffi_HS_DYN_LIB)
  92 ifeq "$(Windows)" "YES"
  93 INSTALL_PROGS += $(libffi_HS_DYN_LIB).a
  94 endif
  95 endif
  96
  97 # We have to fake a non-working ln for configure, so that the fallback
  98 # option (cp -p) gets used instead.  Otherwise the libffi build system
  99 # will use cygwin symbolic linkks which cannot be read by mingw gcc.
 100 # The same trick is played by the GMP build in ../gmp.
 101
 102 ifneq "$(BINDIST)" "YES"
 103 $(libffi_STAMP_CONFIGURE):
 104         "$(RM)" $(RM_OPTS_REC) $(LIBFFI_DIR) libffi/build
 105         cat ghc-tarballs/libffi/libffi*.tar.gz | $(GZIP) -d | { cd libffi && $(TAR) -xf - ; }
 106         mv libffi/libffi-* libffi/build
 107         chmod +x libffi/ln
 108
 109 # Because -Werror may be in SRC_CC_OPTS/SRC_LD_OPTS, we need to turn
 110 # warnings off or the compilation of libffi might fail due to warnings
 111         cd libffi && \
 112             PATH=`pwd`:$$PATH; \
 113             export PATH; \
 114             cd build && \
 115             CC=$(WhatGccIsCalled) \
 116             LD=$(LD) \
 117             AR=$(AR) \
 118             NM=$(NM) \
 119         CFLAGS="$(SRC_CC_OPTS) $(CONF_CC_OPTS) -w" \
 120         LDFLAGS="$(SRC_LD_OPTS) $(CONF_LD_OPTS) -w" \
 121         "$(SHELL)" configure \
 122                   --enable-static=yes \
 123                   --enable-shared=$(libffi_EnableShared) \
 124                   --host=$(PLATFORM) --build=$(PLATFORM)
 125
 126         # libffi.so needs to be built with the correct soname.
 127         # NOTE: this builds libffi_convience.so with the incorrect
 128         # soname, but we don't need that anyway!
 129         cd libffi && \
 130           "$(CP)" build/libtool build/libtool.orig; \
 131           sed -e s/soname_spec=.*/soname_spec="$(libffi_HS_DYN_LIB_NAME)"/ build/libtool.orig > build/libtool
 132
 133         # We don't want libtool's cygwin hacks
 134         cd libffi && \
 135           "$(CP)" build/libtool build/libtool.orig; \
 136           sed -e s/dlname=\'\$$tdlname\'/dlname=\'\$$dlname\'/ build/libtool.orig > build/libtool
 137
 138         touch $@
 139
 140 libffi/dist-install/build/ffi.h: $(libffi_STAMP_CONFIGURE) | $$(dir $$@)/.
 141         "$(CP)" libffi/build/include/ffi.h $@
 142
 143 libffi/dist-install/build/ffitarget.h: $(libffi_STAMP_CONFIGURE) | $$(dir $$@)/.
 144         "$(CP)" libffi/build/include/ffitarget.h $@
 145
 146 $(libffi_STAMP_BUILD): $(libffi_STAMP_CONFIGURE) | libffi/dist-install/build/.
 147         $(MAKE) -C libffi/build MAKEFLAGS=
 148         cd libffi/build && ./libtool --mode=install cp libffi.la $(TOP)/libffi/dist-install/build
 149
 150         # We actually want both static and dllized libraries, because we build
 151         #   the runtime system both ways. libffi_convenience.a is the static version.
 152 ifeq "$(Windows)" "YES"
 153         cp libffi/build/.libs/libffi_convenience.a $(libffi_STATIC_LIB)
 154 endif
 155
 156         touch $@
 157
 158 $(libffi_STATIC_LIB): $(libffi_STAMP_BUILD)
 159 # Rename libffi.a to libHSffi.a
 160 libffi/dist-install/build/libHSffi.a libffi/dist-install/build/libHSffi_p.a: $(libffi_STATIC_LIB)
 161         "$(CP)" $(libffi_STATIC_LIB) libffi/dist-install/build/libHSffi.a
 162         "$(CP)" $(libffi_STATIC_LIB) libffi/dist-install/build/libHSffi_p.a
 163
 164 $(eval $(call all-target,libffi,$(INSTALL_HEADERS) $(INSTALL_LIBS)))
 165
 166 # The GHCi import lib isn't needed as compiler/ghci/Linker.lhs + rts/Linker.c
 167 # link the interpreted references to FFI to the compiled FFI.
 168 # Instead of adding libffi to the list preloaded packages (see
 169 # compiler/ghci/Linker.lhs:emptyPLS) we generate an empty HSffi.o
 170
 171 libffi/dist-install/build/HSffi.o: libffi/dist-install/build/libHSffi.a
 172         cd libffi/dist-install/build && \
 173           touch empty.c && \
 174           "$(CC)" $(SRC_CC_OPTS) $(CONF_CC_OPTS) -c empty.c -o HSffi.o
 175
 176 $(eval $(call all-target,libffi,libffi/dist-install/build/HSffi.o))
 177
 178 ifeq "$(BuildSharedLibs)" "YES"
 179 ifeq "$(Windows)" "YES"
 180 libffi/libffi.dll.a $(libffi_HS_DYN_LIB): $(libffi_STAMP_BUILD)
 181 # Windows libtool creates <soname>.dll, and as we already patched that
 182 # there is no need to copy from libffi.dll to libHSffi...dll.
 183 # However, the renaming is still required for the import library
 184 # libffi.dll.a.
 185 $(libffi_HS_DYN_LIB).a: libffi/dist-install/build/libffi.dll.a | $$(dir $$@)/.
 186         "$(CP)" $< $@
 187
 188 $(eval $(call all-target,libffi,$(libffi_HS_DYN_LIB).a))
 189
 190 else
 191 $(libffi_DYNAMIC_LIBS): $(libffi_STAMP_BUILD)
 192 # Rename libffi.so to libHSffi...so
 193 $(libffi_HS_DYN_LIB): $(libffi_DYNAMIC_LIBS) | $$(dir $$@)/.
 194         "$(CP)" $(word 1,$(libffi_DYNAMIC_LIBS)) $(libffi_HS_DYN_LIB)
 195 ifeq "$(darwin_TARGET_OS)" "1"
 196         # Ensure library's install name is correct before anyone links with it.
 197         install_name_tool -id $(ghclibdir)/$(libffi_HS_DYN_LIB_NAME) $(libffi_HS_DYN_LIB)
 198 endif
 199
 200 $(eval $(call all-target,libffi,$(libffi_HS_DYN_LIB)))
 201 endif
 202 endif
 203
 204 $(eval $(call clean-target,libffi,, \
 205    libffi/build libffi/stamp.ffi.* libffi/dist-install))
 206 endif
 207
 208 #-----------------------------------------------------------------------------
 209 # Do the package config
 210
 211 $(eval $(call manual-package-config,libffi))
 212
 213 #-----------------------------------------------------------------------------
 214 #
 215 # binary-dist
 216
 217 BINDIST_EXTRAS += libffi/package.conf.in
 218