1#	$NetBSD: Makefile.gnuhost,v 1.56 2023/05/19 10:42:34 lukem 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
22HOST_COMPILER_CLANG!= if ${HOST_CC} --version | grep -q -s clang; then echo yes; else echo no; fi
23.if ${HOST_COMPILER_CLANG} == "yes"
24HOST_CFLAGS+=-O2 -no-cpp-precomp
25.endif
26
27MAKE_PROGRAM?=	${MAKE}
28
29.for i in 3 2
30.if exists(${.CURDIR}/../../external/gpl${i}/${MODULE}/dist)
31GNUHOSTDIST?=	${.CURDIR}/../../external/gpl${i}/${MODULE}/dist
32.endif
33.endfor
34
35FIND_ARGS+=	\! \( -type d \( \
36			-name 'CVS' -o \
37			-name 'config' -o \
38			-name 'doc' -o \
39			-name 'po' -o \
40			-name 'nbsd.mt' -o \
41			-name 'tests*' \
42		\) -prune \)
43
44# Do this "find" only if actually building something.
45.if (${USETOOLS} == "yes") && empty(.MAKEFLAGS:M-V*) && \
46    (make(all) || make(realall) || (!make(clean) && !make(cleandir) && !make(obj))) && \
47    !defined(_GNU_CFGSRC)
48
49_GNU_CFGSRC!=	find ${GNUHOSTDIST} ${FIND_ARGS} \
50		-type f \( -name 'config*' -o -name '*.in' \) -print
51.MAKEOVERRIDES+= _GNU_CFGSRC
52.endif
53
54CONFIGURE_ENV+= \
55		AR=${HOST_AR:Q} \
56		AWK=${TOOL_AWK:Q} \
57		CC=${HOST_CC:Q} \
58		CFLAGS=${HOST_CFLAGS:Q} \
59		CONFIG_SHELL=${HOST_SH:Q} \
60		CPPFLAGS=${HOST_CPPFLAGS:Q} \
61		CXX=${HOST_CXX:Q} \
62		CXXFLAGS=${HOST_CXXFLAGS:Q} \
63		INSTALL=${HOST_INSTALL_FILE:Q} \
64		LDFLAGS=${HOST_LDFLAGS:Q} \
65		LEX=${LEX:Q} \
66		FLEX=${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 ${MAKEVERBOSE} == 0
81CONFIGURE_ARGS+=--silent
82.endif
83
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][0-9]*).*/\2/W}
104BUILD_COMMAND=	/usr/bin/env -i ${BUILD_ENV} ${MAKE_ARGS:N-*} ${TOOL_GMAKE} ${GMAKE_J_ARGS} -e ${MAKE_ARGS}
105
106.endif
107
108MAKE_ARGS+=	BISON=true DESTDIR= INSTALL=${HOST_INSTALL_FILE:Q}
109
110.if ${MAKEVERBOSE} < 2
111MAKE_ARGS+=	-s V=0
112.else
113MAKE_ARGS+=	V=1
114.endif
115
116ALL_TARGET?=	all
117INSTALL_TARGET?=install
118
119BUILD_PLATFORM!= uname -srm | tr ' ()' '-'
120CONFIGURE_PLATFORM!= if [ -s .configure_done ]; then cat .configure_done; else echo none; fi
121.if "${BUILD_PLATFORM}" != "${CONFIGURE_PLATFORM}"
122configure_cleanup:
123	@mkdir build 2>/dev/null || true
124	@(echo "Cleaning stale cache files ${BUILD_PLATFORM} != ${CONFIGURE_PLATFORM}")
125	@(cd build && find . -name config.cache | xargs rm -f)
126configure_cleanup=configure_cleanup
127.endif
128
129.configure_done: ${_GNU_CFGSRC} ${.CURDIR}/Makefile ${configure_cleanup}
130	@mkdir build 2>/dev/null || true
131	@(cd build && ${CONFIGURE_ENV} ${HOST_SH} ${GNUHOSTDIST}/configure ${CONFIGURE_ARGS})
132	@echo ${BUILD_PLATFORM} > $@
133
134# The .build_done timestamp is only updated if a file actually changes
135# in the build tree during "make all".  This way, if nothing has changed,
136# a "make install MKUPDATE=yes" will do nothing.
137
138.build_done: .configure_done
139	@(cd build && ${BUILD_COMMAND} ${ALL_TARGET})
140	@if [ ! -f $@ ] || [ -n "$$(find build -type f -newer .build_done -print)" ]; \
141		then touch $@; fi
142
143.install_done! ${BUILD:D.build_done}
144	@(cd ${.OBJDIR}/build && ${BUILD_COMMAND} ${INSTALL_TARGET})
145	@touch $@
146
147# Mapping to standard targets.
148
149.if ${USETOOLS} == "yes"
150realall: .build_done
151realinstall: .install_done
152.endif
153
154clean: clean.gnu
155clean.gnu:
156	-rm -r -f .*_done build
157
158.include <bsd.hostprog.mk>
159