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Makefile.gnuhost revision 1.42 
      1 #	$NetBSD: Makefile.gnuhost,v 1.42 2013/08/13 20:41:25 drochner 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 BUILD_OSTYPE!= uname -s
     22 .if ${BUILD_OSTYPE} == "Darwin"
     23 HOST_CFLAGS+=-O2 -no-cpp-precomp
     24 .endif
     25 MAKE_PROGRAM?=	${MAKE}
     26 
     27 GNUHOSTDIST?=	${.CURDIR}/../../gnu/dist/${MODULE}
     28 
     29 FIND_ARGS+=	\! \( -type d \( \
     30 			-name 'CVS' -o \
     31 			-name 'config' -o \
     32 			-name 'doc' -o \
     33 			-name 'po' -o \
     34 			-name 'nbsd.mt' -o \
     35 			-name 'tests*' \
     36 		\) -prune \)
     37 
     38 # Do this "find" only if actually building something.
     39 .if (${USETOOLS} == "yes") && empty(.MAKEFLAGS:M-V*) && \
     40     (make(all) || make(realall) || (!make(clean) && !make(cleandir) && !make(obj))) && \
     41     !defined(_GNU_CFGSRC)
     42 
     43 _GNU_CFGSRC!=	find ${GNUHOSTDIST} ${FIND_ARGS} \
     44 		-type f \( -name 'config*' -o -name '*.in' \) -print
     45 .MAKEOVERRIDES+= _GNU_CFGSRC
     46 .endif
     47 
     48 CONFIGURE_ENV+= \
     49 		AR=${HOST_AR:Q} \
     50 		AWK=${TOOL_AWK:Q} \
     51 		CC=${HOST_CC:Q} \
     52 		CFLAGS=${HOST_CFLAGS:Q} \
     53 		CONFIG_SHELL=${HOST_SH:Q} \
     54 		CPPFLAGS=${HOST_CPPFLAGS:Q} \
     55 		CXX=${HOST_CXX:Q} \
     56 		CXXFLAGS=${HOST_CXXFLAGS:Q} \
     57 		INSTALL=${HOST_INSTALL_FILE:Q} \
     58 		LDFLAGS=${HOST_LDFLAGS:Q} \
     59 		LEX=${LEX:Q} \
     60 		M4=${TOOL_M4:Q} \
     61 		MAKE=${MAKE_PROGRAM:Q} \
     62 		PATH="${TOOLDIR}/bin:$$PATH" \
     63 		RANLIB=${HOST_RANLIB:Q} \
     64 		YACC=${YACC:Q}
     65 
     66 BUILD_ENV+=	${CONFIGURE_ENV}
     67 
     68 CONFIGURE_ARGS+=--prefix=${TOOLDIR}
     69 .if ${MKPIC} == "no"
     70 CONFIGURE_ARGS+=--disable-shared
     71 .endif
     72 
     73 .if ${MAKE_PROGRAM} == ${MAKE}
     74 .ifndef _NOWRAPPER
     75 # Some systems have a small ARG_MAX.  On such systems, prevent Make
     76 # variables set on the command line from being exported in the
     77 # environment (they will still be set in MAKEOVERRIDES).
     78 .if ${BUILD_OSTYPE} == "Darwin" || ${BUILD_OSTYPE} == "FreeBSD"
     79 __noenvexport=	-X
     80 .endif
     81 MAKE_ARGS:=	${__noenvexport} -f ${.PARSEDIR}/Makefile.gnuwrap ${MAKE_ARGS}
     82 .else
     83 MAKE_ARGS+=	_NOWRAPPER=1
     84 .endif
     85 BUILD_COMMAND=	${BUILD_ENV} ${MAKE} ${MAKE_ARGS}
     86 .else
     87 
     88 # gmake version of this puts MAKE_ARGS in the environment to be sure that
     89 # sub-gmake's get them, otherwise tools/gcc tries to build libgcc and
     90 # fails.  it also uses "env -i" to entirely clear out MAKEFLAGS.
     91 GMAKE_J_ARGS?=	${MAKEFLAGS:[*]:M*-j*:C/.*(-j ?[0-9]*).*/\1/W}
     92 BUILD_COMMAND=	/usr/bin/env -i ${BUILD_ENV} ${MAKE_ARGS} ${TOOL_GMAKE} ${GMAKE_J_ARGS} -e ${MAKE_ARGS}
     93 
     94 .endif
     95 
     96 MAKE_ARGS+=	BISON=true DESTDIR= INSTALL=${HOST_INSTALL_FILE:Q}
     97 
     98 ALL_TARGET?=	all
     99 INSTALL_TARGET?=install
    100 
    101 BUILD_PLATFORM!= uname -srm | tr ' ()' '-'
    102 CONFIGURE_PLATFORM!= if [ -s .configure_done ]; then cat .configure_done; else echo none; fi
    103 .if "${BUILD_PLATFORM}" != "${CONFIGURE_PLATFORM}"
    104 configure_cleanup:
    105 	@mkdir build 2>/dev/null || true
    106 	@(echo "Cleaning stale cache files ${BUILD_PLATFORM} != ${CONFIGURE_PLATFORM}")
    107 	@(cd build && find . -name config.cache | xargs rm -f)
    108 configure_cleanup=configure_cleanup
    109 .endif
    110 
    111 .configure_done: ${_GNU_CFGSRC} ${.CURDIR}/Makefile ${configure_cleanup}
    112 	@mkdir build 2>/dev/null || true
    113 	@(cd build && ${CONFIGURE_ENV} ${HOST_SH} ${GNUHOSTDIST}/configure ${CONFIGURE_ARGS})
    114 	@echo ${BUILD_PLATFORM} > $@
    115 
    116 # The .build_done timestamp is only updated if a file actually changes
    117 # in the build tree during "make all".  This way, if nothing has changed,
    118 # a "make install MKUPDATE=yes" will do nothing.
    119 
    120 .build_done: .configure_done
    121 	@(cd build && ${BUILD_COMMAND} ${ALL_TARGET})
    122 	@if [ ! -f $@ ] || [ -n "$$(find build -type f -newer .build_done -print)" ]; \
    123 		then touch $@; fi
    124 
    125 .install_done! ${BUILD:D.build_done}
    126 	@(cd ${.OBJDIR}/build && ${BUILD_COMMAND} ${INSTALL_TARGET})
    127 	@touch $@
    128 
    129 # Mapping to standard targets.
    130 
    131 .if ${USETOOLS} == "yes"
    132 realall: .build_done
    133 realinstall: .install_done
    134 .endif
    135 
    136 clean: clean.gnu
    137 clean.gnu:
    138 	-rm -r -f .*_done build
    139 
    140 .include <bsd.hostprog.mk>
    141