Modules/makesetup

   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; \$(LDSHARED) $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 )