Makefile.gnuhost revision 1.45 
1#	$NetBSD: Makefile.gnuhost,v 1.45 2018/04/13 06:15:26 snj 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.
21# GCC build exceeds the macOS clang default bracket nesting level of 256.
22BUILD_OSTYPE!= uname -s
23.if ${BUILD_OSTYPE} == "Darwin"
24HOST_CFLAGS+=-O2 -no-cpp-precomp
25HOST_CFLAGS+=-O2 -no-cpp-precomp -fbracket-depth=512
26HOST_CXXFLAGS+= -fbracket-depth=512
27.endif
28MAKE_PROGRAM?=	${MAKE}
29
30.for i in 3 2
31.if exists(${.CURDIR}/../../external/gpl${i}/${MODULE}/dist)
32GNUHOSTDIST?=	${.CURDIR}/../../external/gpl${i}/${MODULE}/dist
33.endif
34.endfor
35
36FIND_ARGS+=	\! \( -type d \( \
37			-name 'CVS' -o \
38			-name 'config' -o \
39			-name 'doc' -o \
40			-name 'po' -o \
41			-name 'nbsd.mt' -o \
42			-name 'tests*' \
43		\) -prune \)
44
45# Do this "find" only if actually building something.
46.if (${USETOOLS} == "yes") && empty(.MAKEFLAGS:M-V*) && \
47    (make(all) || make(realall) || (!make(clean) && !make(cleandir) && !make(obj))) && \
48    !defined(_GNU_CFGSRC)
49
50_GNU_CFGSRC!=	find ${GNUHOSTDIST} ${FIND_ARGS} \
51		-type f \( -name 'config*' -o -name '*.in' \) -print
52.MAKEOVERRIDES+= _GNU_CFGSRC
53.endif
54
55CONFIGURE_ENV+= \
56		AR=${HOST_AR:Q} \
57		AWK=${TOOL_AWK:Q} \
58		CC=${HOST_CC:Q} \
59		CFLAGS=${HOST_CFLAGS:Q} \
60		CONFIG_SHELL=${HOST_SH:Q} \
61		CPPFLAGS=${HOST_CPPFLAGS:Q} \
62		CXX=${HOST_CXX:Q} \
63		CXXFLAGS=${HOST_CXXFLAGS:Q} \
64		INSTALL=${HOST_INSTALL_FILE:Q} \
65		LDFLAGS=${HOST_LDFLAGS:Q} \
66		LEX=${LEX:Q} \
67		M4=${TOOL_M4:Q} \
68		MAKE=${MAKE_PROGRAM:Q} \
69		PATH="${TOOLDIR}/bin:$$PATH" \
70		RANLIB=${HOST_RANLIB:Q} \
71		YACC=${YACC:Q}
72
73BUILD_ENV+=	${CONFIGURE_ENV}
74
75CONFIGURE_ARGS+=--prefix=${TOOLDIR}
76.if ${MKPIC} == "no"
77CONFIGURE_ARGS+=--disable-shared
78.endif
79
80.if ${MAKE_PROGRAM} == ${MAKE}
81.ifndef _NOWRAPPER
82# Some systems have a small ARG_MAX.  On such systems, prevent Make
83# variables set on the command line from being exported in the
84# environment (they will still be set in MAKEOVERRIDES).
85.if ${BUILD_OSTYPE} == "Darwin" || ${BUILD_OSTYPE} == "FreeBSD"
86__noenvexport=	-X
87.endif
88MAKE_ARGS:=	${__noenvexport} -f ${.PARSEDIR}/Makefile.gnuwrap ${MAKE_ARGS}
89.else
90MAKE_ARGS+=	_NOWRAPPER=1
91.endif
92BUILD_COMMAND=	${BUILD_ENV} ${MAKE} ${MAKE_ARGS}
93.else
94
95# gmake version of this puts MAKE_ARGS in the environment to be sure that
96# sub-gmake's get them, otherwise tools/gcc tries to build libgcc and
97# fails.  it also uses "env -i" to entirely clear out MAKEFLAGS.
98GMAKE_J_ARGS?=	${MAKEFLAGS:[*]:M*-j*:C/.*(-j ?[0-9]*).*/\1/W}
99BUILD_COMMAND=	/usr/bin/env -i ${BUILD_ENV} ${MAKE_ARGS} ${TOOL_GMAKE} ${GMAKE_J_ARGS} -e ${MAKE_ARGS}
100
101.endif
102
103MAKE_ARGS+=	BISON=true DESTDIR= INSTALL=${HOST_INSTALL_FILE:Q}
104
105ALL_TARGET?=	all
106INSTALL_TARGET?=install
107
108BUILD_PLATFORM!= uname -srm | tr ' ()' '-'
109CONFIGURE_PLATFORM!= if [ -s .configure_done ]; then cat .configure_done; else echo none; fi
110.if "${BUILD_PLATFORM}" != "${CONFIGURE_PLATFORM}"
111configure_cleanup:
112	@mkdir build 2>/dev/null || true
113	@(echo "Cleaning stale cache files ${BUILD_PLATFORM} != ${CONFIGURE_PLATFORM}")
114	@(cd build && find . -name config.cache | xargs rm -f)
115configure_cleanup=configure_cleanup
116.endif
117
118.configure_done: ${_GNU_CFGSRC} ${.CURDIR}/Makefile ${configure_cleanup}
119	@mkdir build 2>/dev/null || true
120	@(cd build && ${CONFIGURE_ENV} ${HOST_SH} ${GNUHOSTDIST}/configure ${CONFIGURE_ARGS})
121	@echo ${BUILD_PLATFORM} > $@
122
123# The .build_done timestamp is only updated if a file actually changes
124# in the build tree during "make all".  This way, if nothing has changed,
125# a "make install MKUPDATE=yes" will do nothing.
126
127.build_done: .configure_done
128	@(cd build && ${BUILD_COMMAND} ${ALL_TARGET})
129	@if [ ! -f $@ ] || [ -n "$$(find build -type f -newer .build_done -print)" ]; \
130		then touch $@; fi
131
132.install_done! ${BUILD:D.build_done}
133	@(cd ${.OBJDIR}/build && ${BUILD_COMMAND} ${INSTALL_TARGET})
134	@touch $@
135
136# Mapping to standard targets.
137
138.if ${USETOOLS} == "yes"
139realall: .build_done
140realinstall: .install_done
141.endif
142
143clean: clean.gnu
144clean.gnu:
145	-rm -r -f .*_done build
146
147.include <bsd.hostprog.mk>
148