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      1 #! /bin/sh
      2 
      3 # Convert templates into Makefile and config.c, based on the module
      4 # definitions found in the file Setup.
      5 #
      6 # Usage: makesetup [-s dir] [-c file] [-m file] [Setup] ... [-n [Setup] ...]
      7 #
      8 # Options:
      9 # -s directory: alternative source directory (default .)
     10 # -l directory: library source directory (default derived from $0)
     11 # -c file:      alternative config.c template (default $libdir/config.c.in)
     12 # -c -:         don't write config.c
     13 # -m file:      alternative Makefile template (default ./Makefile.pre)
     14 # -m -:         don't write Makefile
     15 #
     16 # Remaining arguments are one or more Setup files (default ./Setup).
     17 # Setup files after a -n option are used for their variables, modules
     18 # and libraries but not for their .o files.
     19 #
     20 # See Setup.dist for a description of the format of the Setup file.
     21 #
     22 # The following edits are made:
     23 #
     24 # Copying config.c.in to config.c:
     25 # - insert an identifying comment at the start
     26 # - for each <module> mentioned in Setup before *noconfig*:
     27 #   + insert 'extern void init<module>(void);' before MARKER 1
     28 #   + insert '{"<module>", initmodule},' before MARKER 2
     29 #
     30 # Copying Makefile.pre to Makefile:
     31 # - insert an identifying comment at the start
     32 # - replace _MODOBJS_ by the list of objects from Setup (except for
     33 #   Setup files after a -n option)
     34 # - replace _MODLIBS_ by the list of libraries from Setup
     35 # - for each object file mentioned in Setup, append a rule
     36 #   '<file>.o: <file>.c; <build commands>' to the end of the Makefile
     37 # - for each module mentioned in Setup, append a rule
     38 #   which creates a shared library version to the end of the Makefile
     39 # - for each variable definition found in Setup, insert the definition
     40 #   before the comment 'Definitions added by makesetup'
     41 
     42 # Loop over command line options
     43 usage='
     44 usage: makesetup [-s srcdir] [-l libdir] [-c config.c.in] [-m Makefile.pre]
     45                  [Setup] ... [-n [Setup] ...]'
     46 srcdir='.'
     47 libdir=''
     48 config=''
     49 makepre=''
     50 noobjects=''
     51 doconfig=yes
     52 while :
     53 do
     54 	case $1 in
     55 	-s)	shift; srcdir=$1; shift;;
     56 	-l)	shift; libdir=$1; shift;;
     57 	-c)	shift; config=$1; shift;;
     58 	-m)	shift; makepre=$1; shift;;
     59 	--)	shift; break;;
     60 	-n)	noobjects=yes;;
     61 	-*)	echo "$usage" 1>&2; exit 2;;
     62 	*)	break;;
     63 	esac
     64 done
     65 
     66 # Set default libdir and config if not set by command line
     67 # (Not all systems have dirname)
     68 case $libdir in
     69 '')	case $0 in
     70 	*/*)	libdir=`echo $0 | sed 's,/[^/]*$,,'`;;
     71 	*)	libdir=.;;
     72 	esac;;
     73 esac
     74 case $config in
     75 '')	config=$libdir/config.c.in;;
     76 esac
     77 case $makepre in
     78 '')	makepre=Makefile.pre;;
     79 esac
     80 
     81 # Newline for sed i and a commands
     82 NL='\
     83 '
     84 
     85 # Setup to link with extra libraries when makeing shared extensions.
     86 # Currently, only Cygwin needs this baggage.
     87 case `uname -s` in
     88 CYGWIN*) if test $libdir = .
     89 	 then
     90 	 	ExtraLibDir=.
     91 	 else
     92 	 	ExtraLibDir='$(LIBPL)'
     93 	 fi
     94 	 ExtraLibs="-L$ExtraLibDir -lpython\$(VERSION)";;
     95 esac
     96 
     97 # Main loop
     98 for i in ${*-Setup}
     99 do
    100 	case $i in
    101 	-n)	echo '*noobjects*';;
    102 	*)	echo '*doconfig*'; cat "$i";;
    103 	esac
    104 done |
    105 sed -e 's/[ 	]*#.*//' -e '/^[ 	]*$/d' |
    106 (
    107 	rulesf="@rules.$$"
    108 	trap 'rm -f $rulesf' 0 1 2 3
    109 	echo "
    110 # Rules appended by makedepend
    111 " >$rulesf
    112 	DEFS=
    113 	MODS=
    114 	SHAREDMODS=
    115 	OBJS=
    116 	LIBS=
    117 	LOCALLIBS=
    118 	BASELIBS=
    119 	while read line
    120 	do
    121 		# to handle backslashes for sh's that don't automatically
    122 		# continue a read when the last char is a backslash
    123 		while echo $line | grep '\\$' > /dev/null
    124 		do
    125 			read extraline
    126 			line=`echo $line| sed s/.$//`$extraline
    127 		done
    128 
    129 		# Output DEFS in reverse order so first definition overrides
    130 		case $line in
    131 		*=*)	DEFS="$line$NL$DEFS"; continue;;
    132 		'include '*)	DEFS="$line$NL$DEFS"; continue;;
    133 		'*noobjects*')
    134 			case $noobjects in
    135 			yes)	;;
    136 			*)	LOCALLIBS=$LIBS; LIBS=;;
    137 			esac
    138 			noobjects=yes;
    139 			continue;;
    140 		'*doconfig*')	doconfig=yes; continue;;
    141 		'*static*')	doconfig=yes; continue;;
    142 		'*noconfig*')	doconfig=no; continue;;
    143 		'*shared*')	doconfig=no; continue;;
    144 		esac
    145 		srcs=
    146 		cpps=
    147 		libs=
    148 		mods=
    149 		skip=
    150 		for arg in $line
    151 		do
    152 			case $skip in
    153 			libs)	libs="$libs $arg"; skip=; continue;;
    154 			cpps)	cpps="$cpps $arg"; skip=; continue;;
    155 			srcs)	srcs="$srcs $arg"; skip=; continue;;
    156 			esac
    157 			case $arg in
    158 			-framework)	libs="$libs $arg"; skip=libs;
    159 				        # OSX/OSXS/Darwin framework link cmd
    160 					;;
    161 			-[IDUCfF]*)	cpps="$cpps $arg";;
    162 			-Xcompiler)	skip=cpps;;
    163 			-Xlinker)	libs="$libs $arg"; skip=libs;;
    164 			-rpath)		libs="$libs $arg"; skip=libs;;
    165 			--rpath)	libs="$libs $arg"; skip=libs;;
    166 			-[A-Zl]*)	libs="$libs $arg";;
    167 			*.a)		libs="$libs $arg";;
    168 			*.so)		libs="$libs $arg";;
    169 			*.sl)		libs="$libs $arg";;
    170 			/*.o)		libs="$libs $arg";;
    171 			*.def)		libs="$libs $arg";;
    172 			*.o)		srcs="$srcs `basename $arg .o`.c";;
    173 			*.[cC])		srcs="$srcs $arg";;
    174 			*.m)		srcs="$srcs $arg";; # Objective-C src
    175 			*.cc)		srcs="$srcs $arg";;
    176 			*.c++)		srcs="$srcs $arg";;
    177 			*.cxx)		srcs="$srcs $arg";;
    178 			*.cpp)		srcs="$srcs $arg";;
    179 			\$*)		libs="$libs $arg"
    180 					cpps="$cpps $arg";;
    181 			*.*)		echo 1>&2 "bad word $arg in $line"
    182 					exit 1;;
    183 			-u)		skip=libs; libs="$libs -u";;
    184 			[a-zA-Z_]*)	mods="$mods $arg";;
    185 			*)		echo 1>&2 "bad word $arg in $line"
    186 					exit 1;;
    187 			esac
    188 		done
    189 		case $doconfig in
    190 		yes)
    191 			LIBS="$LIBS $libs"
    192 			MODS="$MODS $mods"
    193 			;;
    194 		esac
    195 		case $noobjects in
    196 		yes)	continue;;
    197 		esac
    198 		objs=''
    199 		for src in $srcs
    200 		do
    201 			case $src in
    202 			*.c)   obj=`basename $src .c`.o; cc='$(CC)';;
    203 			*.cc)  obj=`basename $src .cc`.o; cc='$(CXX)';;
    204 			*.c++) obj=`basename $src .c++`.o; cc='$(CXX)';;
    205 			*.C)   obj=`basename $src .C`.o; cc='$(CXX)';;
    206 			*.cxx) obj=`basename $src .cxx`.o; cc='$(CXX)';;
    207 			*.cpp) obj=`basename $src .cpp`.o; cc='$(CXX)';;
    208 			*.m)   obj=`basename $src .m`.o; cc='$(CC)';; # Obj-C
    209 			*)     continue;;
    210 			esac
    211 			obj="$srcdir/$obj"
    212 			objs="$objs $obj"
    213 			case $src in
    214 			glmodule.c) ;;
    215 			/*) ;;
    216 			\$*) ;;
    217 			*) src='$(srcdir)/'"$srcdir/$src";;
    218 			esac
    219 			case $doconfig in
    220 			no)	cc="$cc \$(CCSHARED) \$(CFLAGS) \$(CPPFLAGS)";;
    221 			*)
    222 				cc="$cc \$(PY_CFLAGS)";;
    223 			esac
    224 			rule="$obj: $src; $cc $cpps -c $src -o $obj"
    225 			echo "$rule" >>$rulesf
    226 		done
    227 		case $doconfig in
    228 		yes)	OBJS="$OBJS $objs";;
    229 		esac
    230 		for mod in $mods
    231 		do
    232 			case $objs in
    233 			*$mod.o*)	base=$mod;;
    234 			*)		base=${mod}module;;
    235 			esac
    236 			file="$srcdir/$base\$(SO)"
    237 			case $doconfig in
    238 			no)	SHAREDMODS="$SHAREDMODS $file";;
    239 			esac
    240 			rule="$file: $objs"
    241 			rule="$rule; \$(BLDSHARED) $objs $libs $ExtraLibs -o $file"
    242 			echo "$rule" >>$rulesf
    243 		done
    244 	done
    245 
    246 	case $SHAREDMODS in
    247 	'')	;;
    248 	*)	DEFS="SHAREDMODS=$SHAREDMODS$NL$DEFS";;
    249 	esac
    250 
    251 	case $noobjects in
    252 	yes)	BASELIBS=$LIBS;;
    253 	*)	LOCALLIBS=$LIBS;;
    254 	esac
    255 	LIBS='$(LOCALMODLIBS) $(BASEMODLIBS)'
    256 	DEFS="BASEMODLIBS=$BASELIBS$NL$DEFS"
    257 	DEFS="LOCALMODLIBS=$LOCALLIBS$NL$DEFS"
    258 
    259 	EXTDECLS=
    260 	INITBITS=
    261 	for mod in $MODS
    262 	do
    263 		EXTDECLS="${EXTDECLS}extern void init$mod(void);$NL"
    264 		INITBITS="${INITBITS}	{\"$mod\", init$mod},$NL"
    265 	done
    266 
    267 
    268 	case $config in
    269 	-)  ;;
    270 	*)  sed -e "
    271 		1i$NL/* Generated automatically from $config by makesetup. */
    272 		/MARKER 1/i$NL$EXTDECLS
    273  
    274 		/MARKER 2/i$NL$INITBITS
    275 
    276 		" $config >config.c
    277 	    ;;
    278 	esac
    279 
    280 	case $makepre in
    281 	-)	;;
    282 	*)	sedf="@sed.in.$$"
    283 		trap 'rm -f $sedf' 0 1 2 3
    284 		echo "1i\\" >$sedf
    285 		str="# Generated automatically from $makepre by makesetup."
    286 		echo "$str" >>$sedf
    287 		echo "s%_MODOBJS_%$OBJS%" >>$sedf
    288 		echo "s%_MODLIBS_%$LIBS%" >>$sedf
    289 		echo "/Definitions added by makesetup/a$NL$NL$DEFS" >>$sedf
    290 		sed -f $sedf $makepre >Makefile
    291 		cat $rulesf >>Makefile
    292 		rm -f $sedf
    293 	    ;;
    294 	esac
    295 
    296 	rm -f $rulesf
    297 )
    298