scripts/individual

   1 #!/bin/sh
   2
   3 # Clear out the build directory.  (Make clean should do this instead of here.)
   4
   5 rm -rf build
   6 mkdir build
   7
   8 # Make our prerequisites.
   9
  10 make busybox.links include/bb_config.h
  11
  12 # Adding "libbb/libbb.a" to the previous line doesn't work, nor does going
  13 # "make libbb.a" in the libb directory.  The busybox makefile has layers and
  14 # layers of overcomplicated brokenness...
  15
  16 cd libbb
  17 make
  18 cd ..
  19
  20 # Same problem.
  21
  22 cd archival/libunarchive
  23 make
  24 cd ../..
  25
  26 # About 3/5 of the applets build from one .c file (with the same name as the
  27 # corresponding applet), and all it needs to link against.  However, to build
  28 # them all we need more than that.
  29
  30 # Figure out which applets need extra libraries added to their command line.
  31
  32 function extra_libraries()
  33 {
  34   archival="ar bunzip2 unlzma cpio dpkg gunzip rpm2cpio rpm tar uncompress unzip dpkg_deb gzip "
  35   if [ "${archival/$1 //}" != "${archival}" ]
  36   then
  37     echo "archival/libunarchive/libunarchive.a"
  38   fi
  39
  40   # What needs -libm?
  41
  42   libm="awk dc "
  43   if [ "${libm/$1 //}" != "${libm}" ]
  44   then
  45     echo "-lm"
  46   fi
  47 }
  48
  49 # Query applets.h to figure out which need something funky
  50
  51 strange_names=`sed -rn -e 's/\#.*//' -e 's/.*APPLET_NOUSAGE\(([^,]*),([^,]*),.*/\1 \2/p' -e 's/.*APPLET_ODDNAME\(([^,]*),([^,]*),.*, *([^)]*).*/\1 \2@\3/p' include/applets.h`
  52
  53 function bonkname()
  54 {
  55   while [ $# -gt 0 ]
  56   do
  57     if [ "$APPLET" == "$1" ]
  58     then
  59       APPFILT="${2/@*/}"
  60       if [ "${APPFILT}" == "$2" ]
  61       then
  62         HELPNAME='"nousage\n"'
  63       else
  64         HELPNAME="${2/*@/}"_full_usage
  65       fi
  66       break
  67     fi
  68     shift 2
  69   done
  70 #echo APPLET=${APPLET} APPFILT=${APPFILT} HELPNAME=${HELPNAME} 2=${2}
  71 }
  72
  73 for APPLET in `sed 's .*/  ' busybox.links`
  74 do
  75   export APPLET
  76   export APPFILT=${APPLET}
  77   export HELPNAME=${APPLET}_full_usage
  78   bonkname $strange_names
  79
  80   j=`find . -name "${APPFILT}.c"`
  81   if [ -z "$j" ]
  82   then
  83     echo no file for $APPLET
  84   else
  85     echo "Building $APPLET"
  86     gcc -Os -o build/$APPLET applets/individual.c $j \
  87         `extra_libraries $APPFILT` libbb/libbb.a -Iinclude \
  88         -DBUILD_INDIVIDUAL \
  89         "-Drun_applet_by_name(...)" "-Dfind_applet_by_name(...) 0" \
  90         -DAPPLET_main=${APPFILT}_main -DAPPLET_full_usage=${HELPNAME}
  91     if [ $? -ne 0 ];
  92     then
  93       echo "Failed $APPLET"
  94     fi
  95   fi
  96 done
  97
  98 strip build/*