Makefile.gnuhost revision 1.25 
1#	$NetBSD: Makefile.gnuhost,v 1.25 2004/02/15 19:52:27 skrll Exp $
2#
3# Rules used when building a GNU host package.  Expects MODULE to be set.
4#
5# There's not a lot we can do to build reliably in the face of many
6# available configuration options.  To be as low-overhead as possible,
7# we follow the following scheme:
8#
9# * Configuration is only re-run when an autoconf source file (such as
10#   "configure" or "config.sub") is changed.
11#
12# * "config.status" is run to rebuild Makefiles and .h files if an
13#   autoconf-parsed file (such as Makefile.in) is changed.
14#
15# * If MKUPDATE != "no", "make install" is only run if a build has happened
16#   since the last install in the current directory.
17
18.include <bsd.own.mk>
19
20# Disable use of pre-compiled headers on Darwin.
21BUILD_OSTYPE!=  uname -s
22.if ${BUILD_OSTYPE} == "Darwin"
23HOST_CFLAGS+=-O2 -no-cpp-precomp
24.endif
25
26GNUHOSTDIST?=	${.CURDIR}/../../gnu/dist/${MODULE}
27
28FIND_ARGS+=	\! \( -type d \( \
29			-name 'CVS' -o \
30			-name 'config' -o \
31			-name 'doc' -o \
32			-name 'po' -o \
33			-name 'nbsd.mt' -o \
34			-name 'tests*' \
35		\) -prune \)
36
37# Do this "find" only if actually building something.
38.if (${USETOOLS} == "yes") && empty(.MAKEFLAGS:M-V*) && \
39    (make(all) || make(realall) || (!make(clean) && !make(cleandir) && !make(obj))) && \
40    !defined(_GNU_CFGSRC)
41
42_GNU_CFGSRC!=	find ${GNUHOSTDIST} ${FIND_ARGS} \
43		-type f \( -name 'config*' -o -name '*.in' \) -print
44.MAKEOVERRIDES+= _GNU_CFGSRC
45.endif
46
47CONFIGURE_ENV+=	CC=${HOST_CC:Q} \
48		CFLAGS=${HOST_CFLAGS:Q} \
49		CPPFLAGS=${HOST_CPPFLAGS:Q} \
50		CXX=${HOST_CXX:Q} \
51		CXXFLAGS=${HOST_CXXFLAGS:Q} \
52		INSTALL=${HOST_INSTALL_FILE:Q} \
53		LDFLAGS=${HOST_LDFLAGS:Q} \
54		LEX=${LEX:Q} \
55		PATH="${TOOLDIR}/bin:$$PATH" \
56		YACC=${YACC:Q}
57
58CONFIGURE_ARGS+=--prefix=${TOOLDIR}
59
60.ifndef _NOWRAPPER
61# Some systems have a small ARG_MAX.  On such systems, prevent Make
62# variables set on the command line from being exported in the
63# environment (they will still be set in MAKEOVERRIDES).
64BUILD_OSTYPE!=	uname -s
65.if ${BUILD_OSTYPE} == "Darwin" || ${BUILD_OSTYPE} == "FreeBSD"
66__noenvexport=	-X
67.endif
68MAKE_ARGS:=	${__noenvexport} -f ${.PARSEDIR}/Makefile.gnuwrap ${MAKE_ARGS}
69.else
70MAKE_ARGS+=	_NOWRAPPER=1
71.endif
72
73MAKE_ARGS+=	BISON=true DESTDIR= INSTALL=${HOST_INSTALL_FILE:Q}
74
75ALL_TARGET?=	all
76INSTALL_TARGET?=install
77
78.configure_done: ${_GNU_CFGSRC} ${.CURDIR}/Makefile
79	@mkdir build 2>/dev/null || true
80	@(cd build && ${CONFIGURE_ENV} ${HOST_SH} ${GNUHOSTDIST}/configure ${CONFIGURE_ARGS})
81	@touch $@
82
83# The .build_done timestamp is only updated if a file actually changes
84# in the build tree during "make all".  This way, if nothing has changed,
85# a "make install MKUPDATE=yes" will do nothing.
86
87.build_done: .configure_done
88	@(cd build && ${MAKE} ${MAKE_ARGS} ${ALL_TARGET})
89	@if [ ! -f $@ ] || [ -n "$$(find build -type f -newer .build_done -print)" ]; \
90		then touch $@; fi
91
92.install_done: ${BUILD:D.build_done}
93.if ${MKUPDATE} != "no"
94	@cd ${.OBJDIR}; \
95	if [ ! -f .install_done ] || [ ! -f .build_done ] || \
96	[ -n "$$(find .build_done -prune -newer .install_done -print)" ]; then \
97		(cd build && ${MAKE} ${MAKE_ARGS} ${INSTALL_TARGET}); \
98	fi
99.else
100	@(cd ${.OBJDIR}/build && ${MAKE} ${MAKE_ARGS} ${INSTALL_TARGET})
101.endif
102	@touch $@
103
104.PHONY: .build_done .install_done
105
106# Mapping to standard targets.
107
108.if ${USETOOLS} == "yes"
109realall: .build_done
110realinstall: .install_done
111.endif
112
113clean: clean.gnu
114clean.gnu:
115	rm -r -f .*_done build
116
117.include <bsd.hostprog.mk>
118