Make stage-specific CC variables
[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 # 2007-07-05
38 # Passing
39 # as_ln_s='cp -p'
40 # isn't sufficient to stop cygwin using symlinks the mingw gcc can't
41 # follow, as it isn't used consistently. Instead we put an ln.bat in
42 # path that always fails.
43
44 ifeq "$(BuildSharedLibs)" "YES"
45 libffi_STAMP_CONFIGURE = libffi/stamp.ffi.configure-shared
46 libffi_STAMP_BUILD = libffi/stamp.ffi.build-shared
47 else
48 libffi_STAMP_CONFIGURE = libffi/stamp.ffi.configure
49 libffi_STAMP_BUILD = libffi/stamp.ffi.build
50 endif
51
52 BINDIST_STAMPS = libffi/stamp.ffi.build libfii/stamp.ffi.configure
53
54 INSTALL_HEADERS += libffi/dist-install/build/ffi.h \
55 libffi/dist-install/build/ffitarget.h
56 libffi_STATIC_LIB = libffi/dist-install/build/libffi.a
57 INSTALL_LIBS += libffi/dist-install/build/libHSffi.a \
58 libffi/dist-install/build/libHSffi_p.a \
59 libffi/dist-install/build/HSffi.o
60
61 # We have to add the GHC version to the name of our dynamic libs, because
62 # they will be residing in the system location along with dynamic libs from
63 # other GHC installations.
64
65 libffi_HS_DYN_LIB_NAME = libHSffi$(dyn_libsuf)
66 libffi_HS_DYN_LIB = libffi/dist-install/build/$(libffi_HS_DYN_LIB_NAME)
67
68 ifeq "$(Windows)" "YES"
69 libffi_DYNAMIC_PROG = $(libffi_HS_DYN_LIB).a
70 libffi_DYNAMIC_LIBS = $(libffi_HS_DYN_LIB)
71 else
72 libffi_DYNAMIC_PROG =
73 ifeq "$(darwin_TARGET_OS)" "1"
74 libffi_DYNAMIC_LIBS = libffi/dist-install/build/libffi$(soext) \
75 libffi/dist-install/build/libffi.5$(soext)
76 else ifeq "$(openbsd_TARGET_OS)" "1"
77 libffi_DYNAMIC_LIBS = libffi/dist-install/build/libffi.so.5.10
78 else
79 libffi_DYNAMIC_LIBS = libffi/dist-install/build/libffi.so \
80 libffi/dist-install/build/libffi.so.5
81 endif
82 endif
83
84 ifeq "$(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_CMD) -d | { cd libffi && $(TAR_CMD) -xf - ; }
106 mv libffi/libffi-* libffi/build
107 chmod +x libffi/ln
108 # don't report nonselinux systems as selinux
109 cd libffi/build && "$(PATCH_CMD)" -p0 < ../libffi.selinux-detection-3.0.8.patch
110
111 # Because -Werror may be in SRC_CC_OPTS/SRC_LD_OPTS, we need to turn
112 # warnings off or the compilation of libffi might fail due to warnings
113 cd libffi && \
114 PATH=`pwd`:$$PATH; \
115 export PATH; \
116 cd build && \
117 CC=$(CC_STAGE1) \
118 LD=$(LD) \
119 AR=$(AR) \
120 NM=$(NM) \
121 CFLAGS="$(SRC_CC_OPTS) $(CONF_CC_OPTS_STAGE1) -w" \
122 LDFLAGS="$(SRC_LD_OPTS) $(CONF_GCC_LINKER_OPTS_STAGE1) -w" \
123 "$(SHELL)" configure \
124 --enable-static=yes \
125 --enable-shared=$(libffi_EnableShared) \
126 --host=$(HOSTPLATFORM) --build=$(BUILDPLATFORM)
127
128 # libffi.so needs to be built with the correct soname.
129 # NOTE: this builds libffi_convience.so with the incorrect
130 # soname, but we don't need that anyway!
131 cd libffi && \
132 "$(CP)" build/libtool build/libtool.orig; \
133 sed -e s/soname_spec=.*/soname_spec="$(libffi_HS_DYN_LIB_NAME)"/ build/libtool.orig > build/libtool
134
135 # We don't want libtool's cygwin hacks
136 cd libffi && \
137 "$(CP)" build/libtool build/libtool.orig; \
138 sed -e s/dlname=\'\$$tdlname\'/dlname=\'\$$dlname\'/ build/libtool.orig > build/libtool
139
140 touch $@
141
142 libffi/dist-install/build/ffi.h: $(libffi_STAMP_CONFIGURE) libffi/dist-install/build/ffitarget.h | $$(dir $$@)/.
143 "$(CP)" libffi/build/include/ffi.h $@
144
145 libffi/dist-install/build/ffitarget.h: $(libffi_STAMP_CONFIGURE) | $$(dir $$@)/.
146 "$(CP)" libffi/build/include/ffitarget.h $@
147
148 $(libffi_STAMP_BUILD): $(libffi_STAMP_CONFIGURE) | libffi/dist-install/build/.
149 $(MAKE) -C libffi/build MAKEFLAGS=
150 cd libffi/build && ./libtool --mode=install cp libffi.la $(TOP)/libffi/dist-install/build
151
152 # We actually want both static and dllized libraries, because we build
153 # the runtime system both ways. libffi_convenience.a is the static version.
154 ifeq "$(Windows)" "YES"
155 cp libffi/build/.libs/libffi_convenience.a $(libffi_STATIC_LIB)
156 endif
157
158 touch $@
159
160 $(libffi_STATIC_LIB): $(libffi_STAMP_BUILD)
161 @test -f $@ || { echo "$< exits, but $@ does not."; echo "Suggest removing $<."; exit 1; }
162
163 # Rename libffi.a to libHSffi.a
164 libffi/dist-install/build/libHSffi.a: $(libffi_STATIC_LIB)
165 "$(CP)" $(libffi_STATIC_LIB) libffi/dist-install/build/libHSffi.a
166
167 libffi/dist-install/build/libHSffi_p.a: $(libffi_STATIC_LIB)
168 "$(CP)" $(libffi_STATIC_LIB) libffi/dist-install/build/libHSffi_p.a
169
170 $(eval $(call all-target,libffi,$(INSTALL_HEADERS) $(INSTALL_LIBS)))
171
172 # The GHCi import lib isn't needed as compiler/ghci/Linker.lhs + rts/Linker.c
173 # link the interpreted references to FFI to the compiled FFI.
174 # Instead of adding libffi to the list preloaded packages (see
175 # compiler/ghci/Linker.lhs:emptyPLS) we generate an empty HSffi.o
176
177 libffi/dist-install/build/HSffi.o: libffi/dist-install/build/libHSffi.a
178 cd libffi/dist-install/build && \
179 touch empty.c && \
180 "$(CC_STAGE1)" $(SRC_CC_OPTS) $(CONF_CC_OPTS_STAGE1) -c empty.c -o HSffi.o
181
182 $(eval $(call all-target,libffi,libffi/dist-install/build/HSffi.o))
183
184 ifeq "$(BuildSharedLibs)" "YES"
185 ifeq "$(Windows)" "YES"
186 libffi/dist-install/build/libffi.dll.a $(libffi_HS_DYN_LIB): $(libffi_STAMP_BUILD)
187 @test -f $@ || { echo "$< exits, but $@ does not."; echo "Suggest removing $<."; exit 1; }
188
189 # Windows libtool creates <soname>.dll, and as we already patched that
190 # there is no need to copy from libffi.dll to libHSffi...dll.
191 # However, the renaming is still required for the import library
192 # libffi.dll.a.
193 $(libffi_HS_DYN_LIB).a: libffi/dist-install/build/libffi.dll.a | $$(dir $$@)/.
194 "$(CP)" $< $@
195
196 $(eval $(call all-target,libffi,$(libffi_HS_DYN_LIB).a))
197
198 else
199 $(libffi_DYNAMIC_LIBS): $(libffi_STAMP_BUILD)
200 @test -f $@ || { echo "$< exits, but $@ does not."; echo "Suggest removing $<."; exit 1; }
201
202 # Rename libffi.so to libHSffi...so
203 $(libffi_HS_DYN_LIB): $(libffi_DYNAMIC_LIBS) | $$(dir $$@)/.
204 "$(CP)" $(word 1,$(libffi_DYNAMIC_LIBS)) $(libffi_HS_DYN_LIB)
205 ifeq "$(darwin_TARGET_OS)" "1"
206 # Ensure library's install name is correct before anyone links with it.
207 install_name_tool -id $(ghclibdir)/$(libffi_HS_DYN_LIB_NAME) $(libffi_HS_DYN_LIB)
208 endif
209
210 $(eval $(call all-target,libffi,$(libffi_HS_DYN_LIB)))
211 endif
212 endif
213
214 $(eval $(call clean-target,libffi,, \
215 libffi/build libffi/stamp.ffi.* libffi/dist-install))
216 endif
217
218 #-----------------------------------------------------------------------------
219 # Do the package config
220
221 $(eval $(call manual-package-config,libffi))
222
223 #-----------------------------------------------------------------------------
224 #
225 # binary-dist
226
227 BINDIST_EXTRAS += libffi/package.conf.in