Makefile.gnuhost revision 1.49 
1#	$NetBSD: Makefile.gnuhost,v 1.49 2018/10/14 10:23:32 martin 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
26MAKE_PROGRAM?=	${MAKE}
27
28.for i in 3 2
29.if exists(${.CURDIR}/../../external/gpl${i}/${MODULE}/dist)
30GNUHOSTDIST?=	${.CURDIR}/../../external/gpl${i}/${MODULE}/dist
31.endif
32.endfor
33
34FIND_ARGS+=	\! \( -type d \( \
35			-name 'CVS' -o \
36			-name 'config' -o \
37			-name 'doc' -o \
38			-name 'po' -o \
39			-name 'nbsd.mt' -o \
40			-name 'tests*' \
41		\) -prune \)
42
43# Do this "find" only if actually building something.
44.if (${USETOOLS} == "yes") && empty(.MAKEFLAGS:M-V*) && \
45    (make(all) || make(realall) || (!make(clean) && !make(cleandir) && !make(obj))) && \
46    !defined(_GNU_CFGSRC)
47
48_GNU_CFGSRC!=	find ${GNUHOSTDIST} ${FIND_ARGS} \
49		-type f \( -name 'config*' -o -name '*.in' \) -print
50.MAKEOVERRIDES+= _GNU_CFGSRC
51.endif
52
53CONFIGURE_ENV+= \
54		AR=${HOST_AR:Q} \
55		AWK=${TOOL_AWK:Q} \
56		CC=${HOST_CC:Q} \
57		CFLAGS=${HOST_CFLAGS:Q} \
58		CONFIG_SHELL=${HOST_SH:Q} \
59		CPPFLAGS=${HOST_CPPFLAGS:Q} \
60		CXX=${HOST_CXX:Q} \
61		CXXFLAGS=${HOST_CXXFLAGS:Q} \
62		INSTALL=${HOST_INSTALL_FILE:Q} \
63		LDFLAGS=${HOST_LDFLAGS:Q} \
64		LEX=${LEX:Q} \
65		FLEX=${LEX:Q} \
66		M4=${TOOL_M4:Q} \
67		MAKE=${MAKE_PROGRAM:Q} \
68		PATH="${TOOLDIR}/bin:$$PATH" \
69		RANLIB=${HOST_RANLIB:Q} \
70		YACC=${YACC:Q}
71
72BUILD_ENV+=	${CONFIGURE_ENV}
73
74CONFIGURE_ARGS+=--prefix=${TOOLDIR}
75.if ${MKPIC} == "no"
76CONFIGURE_ARGS+=--disable-shared
77.endif
78
79.if ${MAKE_PROGRAM} == ${MAKE}
80.ifndef _NOWRAPPER
81# Some systems have a small ARG_MAX.  On such systems, prevent Make
82# variables set on the command line from being exported in the
83# environment (they will still be set in MAKEOVERRIDES).
84.if ${BUILD_OSTYPE} == "Darwin" || ${BUILD_OSTYPE} == "FreeBSD"
85__noenvexport=	-X
86.endif
87MAKE_ARGS:=	${__noenvexport} -f ${.PARSEDIR}/Makefile.gnuwrap ${MAKE_ARGS}
88.else
89MAKE_ARGS+=	_NOWRAPPER=1
90.endif
91BUILD_COMMAND=	${BUILD_ENV} ${MAKE} ${MAKE_ARGS}
92.else
93
94# gmake version of this puts MAKE_ARGS in the environment to be sure that
95# sub-gmake's get them, otherwise tools/gcc tries to build libgcc and
96# fails.  it also uses "env -i" to entirely clear out MAKEFLAGS.
97GMAKE_J_ARGS?=	${MAKEFLAGS:[*]:M*-j*:C/.*(-j ?[0-9]*).*/\1/W}
98BUILD_COMMAND=	/usr/bin/env -i ${BUILD_ENV} ${MAKE_ARGS} ${TOOL_GMAKE} ${GMAKE_J_ARGS} -e ${MAKE_ARGS}
99
100.endif
101
102MAKE_ARGS+=	BISON=true DESTDIR= INSTALL=${HOST_INSTALL_FILE:Q}
103
104ALL_TARGET?=	all
105INSTALL_TARGET?=install
106
107BUILD_PLATFORM!= uname -srm | tr ' ()' '-'
108CONFIGURE_PLATFORM!= if [ -s .configure_done ]; then cat .configure_done; else echo none; fi
109.if "${BUILD_PLATFORM}" != "${CONFIGURE_PLATFORM}"
110configure_cleanup:
111	@mkdir build 2>/dev/null || true
112	@(echo "Cleaning stale cache files ${BUILD_PLATFORM} != ${CONFIGURE_PLATFORM}")
113	@(cd build && find . -name config.cache | xargs rm -f)
114configure_cleanup=configure_cleanup
115.endif
116
117.configure_done: ${_GNU_CFGSRC} ${.CURDIR}/Makefile ${configure_cleanup}
118	@mkdir build 2>/dev/null || true
119	@(cd build && ${CONFIGURE_ENV} ${HOST_SH} ${GNUHOSTDIST}/configure ${CONFIGURE_ARGS})
120	@echo ${BUILD_PLATFORM} > $@
121
122# The .build_done timestamp is only updated if a file actually changes
123# in the build tree during "make all".  This way, if nothing has changed,
124# a "make install MKUPDATE=yes" will do nothing.
125
126.build_done: .configure_done
127	@(cd build && ${BUILD_COMMAND} ${ALL_TARGET})
128	@if [ ! -f $@ ] || [ -n "$$(find build -type f -newer .build_done -print)" ]; \
129		then touch $@; fi
130
131.install_done! ${BUILD:D.build_done}
132	@(cd ${.OBJDIR}/build && ${BUILD_COMMAND} ${INSTALL_TARGET})
133	@touch $@
134
135# Mapping to standard targets.
136
137.if ${USETOOLS} == "yes"
138realall: .build_done
139realinstall: .install_done
140.endif
141
142clean: clean.gnu
143clean.gnu:
144	-rm -r -f .*_done build
145
146.include <bsd.hostprog.mk>
147