gcc/fixinc.sco

   1 #! /bin/sh
   2 #
   3 #   fixinc.sco  --  Install modified versions of SCO system include
   4 #   files.
   5 #
   6 #   Based on fixinc.svr4 script by Ron Guilmette (rfg@ncd.com) (SCO
   7 #   modifications by Ian Lance Taylor (ian@airs.com)).
   8 #
   9 # This file is part of GNU CC.
  10 #
  11 # GNU CC is free software; you can redistribute it and/or modify
  12 # it under the terms of the GNU General Public License as published by
  13 # the Free Software Foundation; either version 2, or (at your option)
  14 # any later version.
  15 #
  16 # GNU CC is distributed in the hope that it will be useful,
  17 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 # GNU General Public License for more details.
  20 #
  21 # You should have received a copy of the GNU General Public License
  22 # along with GNU CC; see the file COPYING.  If not, write to
  23 # the Free Software Foundation, 59 Temple Place - Suite 330,
  24 # Boston, MA 02111-1307, USA.
  25 #
  26 #       This script munges the native include files provided with SCO
  27 #       3.2v4 systems so as to provide a reasonable namespace when
  28 #       compiling with gcc.  The header files by default do not
  29 #       provide many essential definitions and declarations if
  30 #       __STDC__ is 1.  This script modifies the header files to check
  31 #       for __STRICT_ANSI__ being defined instead.  Once munged, the
  32 #       resulting new system include files are placed in a directory
  33 #       that GNU C will search *before* searching the /usr/include
  34 #       directory.  This script should work properly for most SCO
  35 #       3.2v4 systems.  For other types of systems, you should use the
  36 #       `fixincludes' or the `fixinc.svr4' script instead.
  37 #
  38 #       See README-fixinc for more information.
  39
  40 # Directory containing the original header files.
  41 INPUT=${2-${INPUT-/usr/include}}
  42
  43 # Fail if no arg to specify a directory for the output.
  44 if [ x$1 = x ]
  45 then echo fixincludes: no output directory specified
  46 exit 1
  47 fi
  48
  49 # Directory in which to store the results.
  50 LIB=${1?"fixincludes: output directory not specified"}
  51
  52 # Make sure it exists.
  53 if [ ! -d $LIB ]; then
  54   mkdir $LIB || exit 1
  55 fi
  56
  57 ORIG_DIR=`pwd`
  58
  59 # Make LIB absolute if it is relative.
  60 # Don't do this if not necessary, since may screw up automounters.
  61 case $LIB in
  62 /*)
  63         ;;
  64 *)
  65         cd $LIB; LIB=`${PWDCMD-pwd}`
  66         ;;
  67 esac
  68
  69 echo 'Building fixincludes in ' ${LIB}
  70
  71 # Determine whether this filesystem has symbolic links.
  72 if ln -s X $LIB/ShouldNotExist 2>/dev/null; then
  73   rm -f $LIB/ShouldNotExist
  74   LINKS=true
  75 else
  76   LINKS=false
  77 fi
  78
  79 echo 'Making directories:'
  80 cd ${INPUT}
  81 if $LINKS; then
  82   files=`ls -LR | sed -n s/:$//p`
  83 else
  84   files=`find . -type d -print | sed '/^.$/d'`
  85 fi
  86 for file in $files; do
  87   rm -rf $LIB/$file
  88   if [ ! -d $LIB/$file ]
  89   then mkdir $LIB/$file
  90   fi
  91 done
  92
  93 # treetops gets an alternating list
  94 # of old directories to copy
  95 # and the new directories to copy to.
  96 treetops="${INPUT} ${LIB}"
  97
  98 if $LINKS; then
  99   echo 'Making internal symbolic directory links'
 100   for file in $files; do
 101     dest=`ls -ld $file | sed -n 's/.*-> //p'`
 102     if [ "$dest" ]; then
 103       cwd=`pwd`
 104       # In case $dest is relative, get to $file's dir first.
 105       cd ${INPUT}
 106       cd `echo ./$file | sed -n 's&[^/]*$&&p'`
 107       # Check that the target directory exists.
 108       # Redirections changed to avoid bug in sh on Ultrix.
 109       (cd $dest) > /dev/null 2>&1
 110       if [ $? = 0 ]; then
 111         cd $dest
 112         # X gets the dir that the link actually leads to.
 113         x=`pwd`
 114         # If link leads back into ${INPUT},
 115         # make a similar link here.
 116         if expr $x : "${INPUT}/.*" > /dev/null; then
 117           # Y gets the actual target dir name, relative to ${INPUT}.
 118           y=`echo $x | sed -n "s&${INPUT}/&&p"`
 119           echo $file '->' $y ': Making link'
 120           rm -fr ${LIB}/$file > /dev/null 2>&1
 121           ln -s ${LIB}/$y ${LIB}/$file > /dev/null 2>&1
 122         else
 123           # If the link is to outside ${INPUT},
 124           # treat this directory as if it actually contained the files.
 125 # This line used to have $dest instead of $x.
 126 # $dest seemed to be wrong for links found in subdirectories
 127 # of ${INPUT}.  Does this change break anything?
 128           treetops="$treetops $x ${LIB}/$file"
 129         fi
 130       fi
 131       cd $cwd
 132     fi
 133   done
 134 fi
 135
 136 set - $treetops
 137 while [ $# != 0 ]; do
 138   # $1 is an old directory to copy, and $2 is the new directory to copy to.
 139   echo "Finding header files in $1:"
 140   cd ${INPUT}
 141   cd $1
 142   files=`find . -name '*.h' -type f -print`
 143   echo 'Checking header files:'
 144   for file in $files; do
 145     if egrep '!__STDC__' $file >/dev/null; then
 146       if [ -r $file ]; then
 147         cp $file $2/$file >/dev/null 2>&1 || echo "Can't copy $file"
 148         chmod +w $2/$file
 149         chmod a+r $2/$file
 150
 151 # The following have been removed from the sed command below
 152 # because it is more useful to leave these things in.
 153 # The only reason to remove them was for -pedantic,
 154 # which isn't much of a reason. -- rms.
 155 #         /^[   ]*#[    ]*ident/d
 156
 157         sed -e '
 158           s/!__STDC__/!defined (__STRICT_ANSI__)/g
 159         ' $2/$file > $2/$file.sed
 160         mv $2/$file.sed $2/$file
 161         if cmp $file $2/$file >/dev/null 2>&1; then
 162            rm $2/$file
 163         else
 164            echo Fixed $file
 165         fi
 166       fi
 167     fi
 168   done
 169   shift; shift
 170 done
 171
 172 # Fix first broken decl of getcwd present on some svr4 systems.
 173
 174 file=stdlib.h
 175 base=`basename $file`
 176 if [ -r ${LIB}/$file ]; then
 177   file_to_fix=${LIB}/$file
 178 else
 179   if [ -r ${INPUT}/$file ]; then
 180     file_to_fix=${INPUT}/$file
 181   else
 182     file_to_fix=""
 183   fi
 184 fi
 185 if [ \! -z "$file_to_fix" ]; then
 186   echo Checking $file_to_fix
 187   sed -e 's/getcwd(char \{0,\}\*, int)/getcwd(char *, size_t)/' $file_to_fix > /tmp/$base
 188   if cmp $file_to_fix /tmp/$base >/dev/null 2>&1; then \
 189     true
 190   else
 191     echo Fixed $file_to_fix
 192     rm -f ${LIB}/$file
 193     cp /tmp/$base ${LIB}/$file
 194     chmod a+r ${LIB}/$file
 195   fi
 196   rm -f /tmp/$base
 197 fi
 198
 199 # Fix second broken decl of getcwd present on some svr4 systems.  Also
 200 # fix the incorrect decl of profil present on some svr4 systems.
 201
 202 file=unistd.h
 203 base=`basename $file`
 204 if [ -r ${LIB}/$file ]; then
 205   file_to_fix=${LIB}/$file
 206 else
 207   if [ -r ${INPUT}/$file ]; then
 208     file_to_fix=${INPUT}/$file
 209   else
 210     file_to_fix=""
 211   fi
 212 fi
 213 if [ \! -z "$file_to_fix" ]; then
 214   echo Checking $file_to_fix
 215   sed -e 's/getcwd(char \*, int)/getcwd(char *, size_t)/' $file_to_fix \
 216     | sed -e 's/profil(unsigned short \*, unsigned int, unsigned int, unsigned int)/profil(unsigned short *, size_t, int, unsigned)/' > /tmp/$base
 217   if cmp $file_to_fix /tmp/$base >/dev/null 2>&1; then \
 218     true
 219   else
 220     echo Fixed $file_to_fix
 221     rm -f ${LIB}/$file
 222     cp /tmp/$base ${LIB}/$file
 223     chmod a+r ${LIB}/$file
 224   fi
 225   rm -f /tmp/$base
 226 fi
 227
 228 # Fix third broken decl of getcwd on SCO.  Also fix incorrect decl of
 229 # link.
 230 file=prototypes.h
 231 base=`basename $file`
 232 if [ -r ${LIB}/$file ]; then
 233   file_to_fix=${LIB}/$file
 234 else
 235   if [ -r ${INPUT}/$file ]; then
 236     file_to_fix=${INPUT}/$file
 237   else
 238     file_to_fix=""
 239   fi
 240 fi
 241 if [ \! -z "$file_to_fix" ]; then
 242   echo Checking $file_to_fix
 243   sed -e 's/getcwd(char \*, int)/getcwd(char *, size_t)/' $file_to_fix \
 244     | sed -e 's/const  int      link(const char \*, char \*)/extern  int        link(const char *, const char *)/' > /tmp/$base
 245   if cmp $file_to_fix /tmp/$base >/dev/null 2>&1; then \
 246     true
 247   else
 248     echo Fixed $file_to_fix
 249     rm -f ${LIB}/$file
 250     cp /tmp/$base ${LIB}/$file
 251     chmod a+r ${LIB}/$file
 252   fi
 253   rm -f /tmp/$base
 254 fi
 255
 256 # Fix an error in this file: the #if says _cplusplus, not the double
 257 # underscore __cplusplus that it should be
 258 file=tinfo.h
 259 if [ -r $file ] && [ ! -r ${LIB}/$file ]; then
 260   mkdir ${LIB}/rpcsvc 2>/dev/null
 261   cp $file ${LIB}/$file >/dev/null 2>&1 || echo "Can't copy $file"
 262   chmod +w ${LIB}/$file 2>/dev/null
 263   chmod a+r ${LIB}/$file 2>/dev/null
 264 fi
 265
 266 if [ -r ${LIB}/$file ]; then
 267   echo Fixing $file, __cplusplus macro
 268   sed -e 's/[   ]_cplusplus/ __cplusplus/' ${LIB}/$file > ${LIB}/${file}.sed
 269   rm -f ${LIB}/$file; mv ${LIB}/${file}.sed ${LIB}/$file
 270   if cmp $file ${LIB}/$file >/dev/null 2>&1; then
 271     rm ${LIB}/$file
 272   fi
 273 fi
 274
 275 # Fix prototype declaration of utime in sys/times.h.  In 3.2v4.0 the
 276 # const is missing.
 277 file=sys/times.h
 278 if [ -r $file ] && [ ! -r ${LIB}/$file ]; then
 279   cp $file ${LIB}/$file >/dev/null 2>&1 || echo "Can't copy $file"
 280   chmod +w ${LIB}/$file 2>/dev/null
 281   chmod a+r ${LIB}/$file 2>/dev/null
 282 fi
 283
 284 if [ -r ${LIB}/$file ]; then
 285   echo Fixing $file, utime prototype
 286   sed -e 's/(const char \*, struct utimbuf \*);/(const char *, const struct utimbuf *);/' ${LIB}/$file > ${LIB}/${file}.sed
 287   rm -f ${LIB}/$file; mv ${LIB}/${file}.sed ${LIB}/$file
 288   if cmp $file ${LIB}/$file >/dev/null 2>&1; then
 289     rm ${LIB}/$file
 290   fi
 291 fi
 292
 293 echo 'Removing unneeded directories:'
 294 cd $LIB
 295 files=`find . -type d -print | sort -r`
 296 for file in $files; do
 297   rmdir $LIB/$file > /dev/null 2>&1
 298 done
 299
 300 if $LINKS; then
 301   echo 'Making internal symbolic non-directory links'
 302   cd ${INPUT}
 303   files=`find . -type l -print`
 304   for file in $files; do
 305     dest=`ls -ld $file | sed -n 's/.*-> //p'`
 306     if expr "$dest" : '[^/].*' > /dev/null; then
 307       target=${LIB}/`echo file | sed "s|[^/]*\$|$dest|"`
 308       if [ -f $target ]; then
 309         ln -s $dest ${LIB}/$file >/dev/null 2>&1
 310       fi
 311     fi
 312   done
 313 fi
 314
 315 exit 0