Patch for shared libraries support on FreeBSD
[ghc.git] / 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 $(HOSTPLATFORM) | sed 's/i[567]86/i486/g')
38
39 # 2007-09-26
40 # set -o igncr
41 # is not a valid command on non-Cygwin-systems.
42 # Let it fail silently instead of aborting the build.
43 #
44 # 2007-07-05
45 # We do
46 # set -o igncr; export SHELLOPTS
47 # here as otherwise checking the size of limbs
48 # makes the build fall over on Cygwin. See the thread
49 # http://www.cygwin.com/ml/cygwin/2006-12/msg00011.html
50 # for more details.
51
52 # 2007-07-05
53 # Passing
54 # as_ln_s='cp -p'
55 # isn't sufficient to stop cygwin using symlinks the mingw gcc can't
56 # follow, as it isn't used consistently. Instead we put an ln.bat in
57 # path that always fails.
58
59 ifeq "$(BuildSharedLibs)" "YES"
60 libffi_STAMP_CONFIGURE = libffi/stamp.ffi.configure-shared
61 libffi_STAMP_BUILD = libffi/stamp.ffi.build-shared
62 else
63 libffi_STAMP_CONFIGURE = libffi/stamp.ffi.configure
64 libffi_STAMP_BUILD = libffi/stamp.ffi.build
65 endif
66
67 BINDIST_STAMPS = libffi/stamp.ffi.build libfii/stamp.ffi.configure
68
69 INSTALL_HEADERS += libffi/dist-install/build/ffi.h
70 libffi_STATIC_LIB = libffi/dist-install/build/libffi.a
71 INSTALL_LIBS += libffi/dist-install/build/libHSffi.a \
72 libffi/dist-install/build/libHSffi_p.a \
73 libffi/dist-install/build/HSffi.o
74
75 # We have to add the GHC version to the name of our dynamic libs, because
76 # they will be residing in the system location along with dynamic libs from
77 # other GHC installations.
78
79 libffi_HS_DYN_LIB_NAME = libHSffi$(dyn_libsuf)
80 libffi_HS_DYN_LIB = libffi/dist-install/build/$(libffi_HS_DYN_LIB_NAME)
81
82 ifeq "$(Windows)" "YES"
83 libffi_DYNAMIC_PROG = $(libffi_HS_DYN_LIB).a
84 libffi_DYNAMIC_LIBS = $(libffi_HS_DYN_LIB)
85 else
86 libffi_DYNAMIC_PROG =
87 ifeq "$(darwin_TARGET_OS)" "1"
88 libffi_DYNAMIC_LIBS = libffi/libffi$(soext) libffi/libffi.5$(soext) libffi/libffi.5.0.9$(soext)
89 else
90 libffi_DYNAMIC_LIBS = libffi/dist-install/build/libffi.so \
91 libffi/dist-install/build/libffi.so.5
92 endif
93 endif
94
95 ifeq "$(BuildSharedLibs)" "YES"
96 libffi_EnableShared=yes
97 else
98 libffi_EnableShared=no
99 endif
100
101 ifeq "$(BuildSharedLibs)" "YES"
102 INSTALL_LIBS += $(libffi_HS_DYN_LIB)
103 ifeq "$(Windows)" "YES"
104 INSTALL_PROGS += $(libffi_HS_DYN_LIB).a
105 endif
106 endif
107
108 # We have to fake a non-working ln for configure, so that the fallback
109 # option (cp -p) gets used instead. Otherwise the libffi build system
110 # will use cygwin symbolic linkks which cannot be read by mingw gcc.
111 # The same trick is played by the GMP build in ../gmp.
112
113 ifneq "$(BINDIST)" "YES"
114 $(libffi_STAMP_CONFIGURE):
115 "$(RM)" $(RM_OPTS) -r $(LIBFFI_DIR) libffi/build
116 cd libffi && $(TAR) -zxf ../ghc-tarballs/libffi/libffi*.tar.gz
117 mv libffi/libffi-* libffi/build
118 chmod +x libffi/ln
119 cd libffi/build && "$(PATCH)" -p1 < ../libffi.dllize-3.0.8.patch
120 # This patch is just the resulting delta from running
121 # automake && autoreconf && libtoolize --force --copy
122 cd libffi/build && "$(PATCH)" -p1 < ../libffi.autotools-update-3.0.8.patch
123
124 # Because -Werror may be in SRC_CC_OPTS/SRC_LD_OPTS, we need to turn
125 # warnings off or the compilation of libffi might fail due to warnings
126 cd libffi && \
127 (set -o igncr 2>/dev/null) && set -o igncr; export SHELLOPTS; \
128 PATH=`pwd`:$$PATH; \
129 export PATH; \
130 cd build && \
131 CC=$(WhatGccIsCalled) \
132 CFLAGS="$(SRC_CC_OPTS) $(CONF_CC_OPTS) -w" \
133 LDFLAGS="$(SRC_LD_OPTS) $(CONF_LD_OPTS) -w" \
134 "$(SHELL)" configure \
135 --enable-static=yes \
136 --enable-shared=$(libffi_EnableShared) \
137 --host=$(PLATFORM) --build=$(PLATFORM)
138
139 # libffi.so needs to be built with the correct soname.
140 # NOTE: this builds libffi_convience.so with the incorrect
141 # soname, but we don't need that anyway!
142 cd libffi && \
143 "$(CP)" build/libtool build/libtool.orig; \
144 sed -e s/soname_spec=.*/soname_spec="$(libffi_HS_DYN_LIB_NAME)"/ build/libtool.orig > build/libtool
145
146 # We don't want libtool's cygwin hacks
147 cd libffi && \
148 "$(CP)" build/libtool build/libtool.orig; \
149 sed -e s/dlname=\'\$$tdlname\'/dlname=\'\$$dlname\'/ build/libtool.orig > build/libtool
150
151 touch $@
152
153 libffi/dist-install/build/ffi.h: $(libffi_STAMP_CONFIGURE) | $$(dir $$@)/.
154 "$(CP)" libffi/build/include/ffi.h $@
155
156
157 $(libffi_STAMP_BUILD): $(libffi_STAMP_CONFIGURE) | libffi/dist-install/build/.
158 $(MAKE) -C libffi/build MAKEFLAGS=
159 cd libffi/build && ./libtool --mode=install cp libffi.la $(TOP)/libffi/dist-install/build
160
161 # We actually want both static and dllized libraries, because we build
162 # the runtime system both ways. libffi_convenience.a is the static version.
163 ifeq "$(Windows)" "YES"
164 cp libffi/build/.libs/libffi_convenience.a $(libffi_STATIC_LIB)
165 endif
166
167 touch $@
168
169 $(libffi_STATIC_LIB): $(libffi_STAMP_BUILD)
170 # Rename libffi.a to libHSffi.a
171 libffi/dist-install/build/libHSffi.a libffi/dist-install/build/libHSffi_p.a: $(libffi_STATIC_LIB)
172 "$(CP)" $(libffi_STATIC_LIB) libffi/dist-install/build/libHSffi.a
173 "$(CP)" $(libffi_STATIC_LIB) libffi/dist-install/build/libHSffi_p.a
174
175 $(eval $(call all-target,libffi,$(INSTALL_HEADERS) $(INSTALL_LIBS)))
176
177 # The GHCi import lib isn't needed as compiler/ghci/Linker.lhs + rts/Linker.c
178 # link the interpreted references to FFI to the compiled FFI.
179 # Instead of adding libffi to the list preloaded packages (see
180 # compiler/ghci/Linker.lhs:emptyPLS) we generate an empty HSffi.o
181
182 libffi/dist-install/build/HSffi.o: libffi/dist-install/build/libHSffi.a
183 cd libffi/dist-install/build && \
184 touch empty.c && \
185 "$(CC)" $(SRC_CC_OPTS) $(CONF_CC_OPTS) -c empty.c -o HSffi.o
186
187 $(eval $(call all-target,libffi,libffi/dist-install/build/HSffi.o))
188
189 ifeq "$(BuildSharedLibs)" "YES"
190 ifeq "$(Windows)" "YES"
191 libffi/libffi.dll.a $(libffi_HS_DYN_LIB): $(libffi_STAMP_BUILD)
192 # Windows libtool creates <soname>.dll, and as we already patched that
193 # there is no need to copy from libffi.dll to libHSffi...dll.
194 # However, the renaming is still required for the import library
195 # libffi.dll.a.
196 $(libffi_HS_DYN_LIB).a: libffi/dist-install/build/libffi.dll.a | $$(dir $$@)/.
197 "$(CP)" $< $@
198
199 $(eval $(call all-target,libffi,$(libffi_HS_DYN_LIB).a))
200
201 else
202 $(libffi_DYNAMIC_LIBS): $(libffi_STAMP_BUILD)
203 # Rename libffi.so to libHSffi...so
204 $(libffi_HS_DYN_LIB): $(libffi_DYNAMIC_LIBS) | $$(dir $$@)/.
205 "$(CP)" $(word 1,$(libffi_DYNAMIC_LIBS)) $(libffi_HS_DYN_LIB)
206 ifeq "$(darwin_TARGET_OS)" "1"
207 # Ensure library's install name is correct before anyone links with it.
208 install_name_tool -id $(ghclibdir)/$(libffi_HS_DYN_LIB_NAME) $(libffi_HS_DYN_LIB)
209 endif
210
211 $(eval $(call all-target,libffi,$(libffi_HS_DYN_LIB)))
212 endif
213 endif
214
215 $(eval $(call clean-target,libffi,, \
216 libffi/build libffi/stamp.ffi.* libffi/dist-install))
217 endif
218
219 #-----------------------------------------------------------------------------
220 # Do the package config
221
222 $(eval $(call manual-package-config,libffi))
223
224 #-----------------------------------------------------------------------------
225 #
226 # binary-dist
227
228 BINDIST_EXTRAS += libffi/package.conf.in
229