Makefile.gnuhost revision 1.46 
1#	$NetBSD: Makefile.gnuhost,v 1.46 2018/04/15 21:50:38 christos 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
26# GCC build exceeds the clang default bracket nesting level of 256.
27HOST_COMPILER_CLANG != if ${HOST_CC} --version 2>&1 | grep -q -s clang; then echo yes; else echo no; fi
28.if ${HOST_COMPILER_CLANG} == "yes"
29HOST_CFLAGS+= -fbracket-depth=512
30HOST_CXXFLAGS+= -fbracket-depth=512
31.endif
32
33MAKE_PROGRAM?=	${MAKE}
34
35.for i in 3 2
36.if exists(${.CURDIR}/../../external/gpl${i}/${MODULE}/dist)
37GNUHOSTDIST?=	${.CURDIR}/../../external/gpl${i}/${MODULE}/dist
38.endif
39.endfor
40
41FIND_ARGS+=	\! \( -type d \( \
42			-name 'CVS' -o \
43			-name 'config' -o \
44			-name 'doc' -o \
45			-name 'po' -o \
46			-name 'nbsd.mt' -o \
47			-name 'tests*' \
48		\) -prune \)
49
50# Do this "find" only if actually building something.
51.if (${USETOOLS} == "yes") && empty(.MAKEFLAGS:M-V*) && \
52    (make(all) || make(realall) || (!make(clean) && !make(cleandir) && !make(obj))) && \
53    !defined(_GNU_CFGSRC)
54
55_GNU_CFGSRC!=	find ${GNUHOSTDIST} ${FIND_ARGS} \
56		-type f \( -name 'config*' -o -name '*.in' \) -print
57.MAKEOVERRIDES+= _GNU_CFGSRC
58.endif
59
60CONFIGURE_ENV+= \
61		AR=${HOST_AR:Q} \
62		AWK=${TOOL_AWK:Q} \
63		CC=${HOST_CC:Q} \
64		CFLAGS=${HOST_CFLAGS:Q} \
65		CONFIG_SHELL=${HOST_SH:Q} \
66		CPPFLAGS=${HOST_CPPFLAGS:Q} \
67		CXX=${HOST_CXX:Q} \
68		CXXFLAGS=${HOST_CXXFLAGS:Q} \
69		INSTALL=${HOST_INSTALL_FILE:Q} \
70		LDFLAGS=${HOST_LDFLAGS:Q} \
71		LEX=${LEX:Q} \
72		M4=${TOOL_M4:Q} \
73		MAKE=${MAKE_PROGRAM:Q} \
74		PATH="${TOOLDIR}/bin:$$PATH" \
75		RANLIB=${HOST_RANLIB:Q} \
76		YACC=${YACC:Q}
77
78BUILD_ENV+=	${CONFIGURE_ENV}
79
80CONFIGURE_ARGS+=--prefix=${TOOLDIR}
81.if ${MKPIC} == "no"
82CONFIGURE_ARGS+=--disable-shared
83.endif
84
85.if ${MAKE_PROGRAM} == ${MAKE}
86.ifndef _NOWRAPPER
87# Some systems have a small ARG_MAX.  On such systems, prevent Make
88# variables set on the command line from being exported in the
89# environment (they will still be set in MAKEOVERRIDES).
90.if ${BUILD_OSTYPE} == "Darwin" || ${BUILD_OSTYPE} == "FreeBSD"
91__noenvexport=	-X
92.endif
93MAKE_ARGS:=	${__noenvexport} -f ${.PARSEDIR}/Makefile.gnuwrap ${MAKE_ARGS}
94.else
95MAKE_ARGS+=	_NOWRAPPER=1
96.endif
97BUILD_COMMAND=	${BUILD_ENV} ${MAKE} ${MAKE_ARGS}
98.else
99
100# gmake version of this puts MAKE_ARGS in the environment to be sure that
101# sub-gmake's get them, otherwise tools/gcc tries to build libgcc and
102# fails.  it also uses "env -i" to entirely clear out MAKEFLAGS.
103GMAKE_J_ARGS?=	${MAKEFLAGS:[*]:M*-j*:C/.*(-j ?[0-9]*).*/\1/W}
104BUILD_COMMAND=	/usr/bin/env -i ${BUILD_ENV} ${MAKE_ARGS} ${TOOL_GMAKE} ${GMAKE_J_ARGS} -e ${MAKE_ARGS}
105
106.endif
107
108MAKE_ARGS+=	BISON=true DESTDIR= INSTALL=${HOST_INSTALL_FILE:Q}
109
110ALL_TARGET?=	all
111INSTALL_TARGET?=install
112
113BUILD_PLATFORM!= uname -srm | tr ' ()' '-'
114CONFIGURE_PLATFORM!= if [ -s .configure_done ]; then cat .configure_done; else echo none; fi
115.if "${BUILD_PLATFORM}" != "${CONFIGURE_PLATFORM}"
116configure_cleanup:
117	@mkdir build 2>/dev/null || true
118	@(echo "Cleaning stale cache files ${BUILD_PLATFORM} != ${CONFIGURE_PLATFORM}")
119	@(cd build && find . -name config.cache | xargs rm -f)
120configure_cleanup=configure_cleanup
121.endif
122
123.configure_done: ${_GNU_CFGSRC} ${.CURDIR}/Makefile ${configure_cleanup}
124	@mkdir build 2>/dev/null || true
125	@(cd build && ${CONFIGURE_ENV} ${HOST_SH} ${GNUHOSTDIST}/configure ${CONFIGURE_ARGS})
126	@echo ${BUILD_PLATFORM} > $@
127
128# The .build_done timestamp is only updated if a file actually changes
129# in the build tree during "make all".  This way, if nothing has changed,
130# a "make install MKUPDATE=yes" will do nothing.
131
132.build_done: .configure_done
133	@(cd build && ${BUILD_COMMAND} ${ALL_TARGET})
134	@if [ ! -f $@ ] || [ -n "$$(find build -type f -newer .build_done -print)" ]; \
135		then touch $@; fi
136
137.install_done! ${BUILD:D.build_done}
138	@(cd ${.OBJDIR}/build && ${BUILD_COMMAND} ${INSTALL_TARGET})
139	@touch $@
140
141# Mapping to standard targets.
142
143.if ${USETOOLS} == "yes"
144realall: .build_done
145realinstall: .install_done
146.endif
147
148clean: clean.gnu
149clean.gnu:
150	-rm -r -f .*_done build
151
152.include <bsd.hostprog.mk>
153