fixincludes

gcc库的原代码,对编程有很大帮助.

  sed -e '/\(.*template\)/s/template//' \
      -e '/extern.*volatile.*void.*abort/s/volatile//' ${LIB}/$file > ${LIB}/${file}.sed
  rm -f ${LIB}/$file; mv ${LIB}/${file}.sed ${LIB}/$file
  if cmp $file ${LIB}/$file >/dev/null 2>&1; then
    rm -f ${LIB}/$file
  else
    # Find any include directives that use "file".
    for include in `egrep '^[       ]*#[    ]*include[      ]*"[^/]' ${LIB}/$file | sed -e 's/^[    ]*#[    ]*include[      ]*"\([^"]*\)".*$/\1/'`; do
      dir=`echo $file | sed -e s'|/[^/]*$||'`
      required="$required ${INPUT} $dir/$include ${LIB}/$dir/$include"
    done
  fi
fi

# NeXT 3.2 includes the keyword volatile in the abort() and 
# exit() function prototypes. That conflicts with the 
# built-in functions.
file=ansi/stdlib.h
if [ -r $file ] && [ ! -r ${LIB}/$file ]; then
  cp $file ${LIB}/$file >/dev/null 2>&1 || echo "Can't copy $file"
  chmod +w ${LIB}/$file 2>/dev/null
fi
if [ -r ${LIB}/$file ]; then
  echo Fixing $file
  sed -e '/extern.*volatile.*void.*exit/s/volatile//' \
      -e '/extern.*volatile.*void.*abort/s/volatile//' ${LIB}/$file > ${LIB}/${file}.sed
  rm -f ${LIB}/$file; mv ${LIB}/${file}.sed ${LIB}/$file
  if cmp $file ${LIB}/$file >/dev/null 2>&1; then
    rm -f ${LIB}/$file
  else
    # Find any include directives that use "file".
    for include in `egrep '^[       ]*#[    ]*include[      ]*"[^/]' ${LIB}/$file | sed -e 's/^[    ]*#[    ]*include[      ]*"\([^"]*\)".*$/\1/'`; do
      dir=`echo $file | sed -e s'|/[^/]*$||'`
      required="$required ${INPUT} $dir/$include ${LIB}/$dir/$include"
    done
  fi
fi

# NeXT 2.0 defines 'int wait(union wait*)', which conflicts with Posix.1.
# Note that version 3 of the NeXT system has wait.h in a different directory,
# so that this code won't do anything.  But wait.h in version 3 has a
# conditional, so it doesn't need this fix.  So everything is okay.
file=sys/wait.h
if [ -r $file ] && [ ! -r ${LIB}/$file ]; then
  cp $file ${LIB}/$file >/dev/null 2>&1 || echo "Can't copy $file"
  chmod +w ${LIB}/$file 2>/dev/null
fi

if [ -r ${LIB}/$file ] \
  && grep 'wait[(]union wait' ${LIB}/$file >/dev/null; then
  echo Fixing $file, bad wait formal
  sed -e 's@wait(union wait@wait(void@' ${LIB}/$file > ${LIB}/${file}.sed
  rm -f ${LIB}/$file; mv ${LIB}/${file}.sed ${LIB}/$file
  if cmp $file ${LIB}/$file >/dev/null 2>&1; then
    rm -f ${LIB}/$file
  else
    # Find any include directives that use "file".
    for include in `egrep '^[       ]*#[    ]*include[      ]*"[^/]' ${LIB}/$file | sed -e 's/^[    ]*#[    ]*include[      ]*"\([^"]*\)".*$/\1/'`; do
      dir=`echo $file | sed -e s'|/[^/]*$||'`
      required="$required ${INPUT} $dir/$include ${LIB}/$dir/$include"
    done
  fi
fi

# Don't use or define the name va_list in stdio.h.
# This is for ANSI and also to interoperate properly with gcc's varargs.h.
file=stdio.h
if [ -r $file ] && [ ! -r ${LIB}/$file ]; then
  cp $file ${LIB}/$file >/dev/null 2>&1 || echo "Can't copy $file"
  chmod +w ${LIB}/$file 2>/dev/null
  chmod a+r ${LIB}/$file 2>/dev/null
fi

if [ -r ${LIB}/$file ]; then
  echo Fixing $file, use of va_list
  # Arrange for stdio.h to use stdarg.h to define __gnuc_va_list
  if egrep "__need___va_list" ${LIB}/$file >/dev/null 2>&1; then
    touch ${LIB}/${file}.sed
  else
    (echo "#define __need___va_list"
     echo "#include <stdarg.h>") > ${LIB}/${file}.sed
  fi
  # Use __gnuc_va_list in arg types in place of va_list.
  # On 386BSD use __gnuc_va_list instead of _VA_LIST_. We're hoping the
  # trailing parentheses and semicolon save all other systems from this.
  # Define __va_list__ (something harmless and unused) instead of va_list.
  # Don't claim to have defined va_list.
  sed -e 's@ va_list @ __gnuc_va_list @' \
      -e 's@ va_list)@ __gnuc_va_list)@' \
      -e 's@ _BSD_VA_LIST_));@ __gnuc_va_list));@' \
      -e 's@ _VA_LIST_));@ __gnuc_va_list));@' \
      -e 's@ va_list@ __va_list__@' \
      -e 's@\*va_list@*__va_list__@' \
      -e 's@ __va_list)@ __gnuc_va_list)@' \
      -e 's@GNUC_VA_LIST@GNUC_Va_LIST@' \
      -e 's@_NEED___VA_LIST@_NEED___Va_LIST@' \
      -e 's@VA_LIST@DUMMY_VA_LIST@' \
      -e 's@_Va_LIST@_VA_LIST@' \
    ${LIB}/$file >> ${LIB}/${file}.sed
  
  rm -f ${LIB}/$file; mv ${LIB}/${file}.sed ${LIB}/$file
  if cmp $file ${LIB}/$file >/dev/null 2>&1; then
    rm -f ${LIB}/$file
  else
    # Find any include directives that use "file".
    for include in `egrep '^[       ]*#[    ]*include[      ]*"[^/]' ${LIB}/$file | sed -e 's/^[    ]*#[    ]*include[      ]*"\([^"]*\)".*$/\1/'`; do
      dir=`echo $file | sed -e s'|/[^/]*$||'`
      required="$required ${INPUT} $dir/$include ${LIB}/$dir/$include"
    done
  fi
fi

# Cancel out ansi_compat.h on Ultrix.  Replace it with empty file.
file=ansi_compat.h
if [ -r $file ] && [ ! -r ${LIB}/$file ]; then
  if grep -s ULTRIX $file; then
    echo "/* This file intentionally left blank.  */" > $LIB/$file
  fi
fi

# parameter to atof not const on DECstation Ultrix V4.0 and NEWS-OS 4.2R.
# also get rid of bogus inline definitions in HP-UX 8.0
file=math.h
if [ -r $file ] && [ ! -r ${LIB}/$file ]; then
  cp $file ${LIB}/$file >/dev/null 2>&1 || echo "Can't copy $file"
  chmod +w ${LIB}/$file 2>/dev/null
  chmod a+r ${LIB}/$file 2>/dev/null
fi

if [ -r ${LIB}/$file ]; then
  echo Fixing $file, non-const arg
  sed -e 's@atof(\([ 	]*char[ 	]*\*[^)]*\))@atof(const \1)@' \
      -e 's@inline int abs(int [a-z][a-z]*) {.*}@extern "C" int abs(int);@' \
      -e 's@inline double abs(double [a-z][a-z]*) {.*}@@' \
      -e 's@inline int sqr(int [a-z][a-z]*) {.*}@@' \
      -e 's@inline double sqr(double [a-z][a-z]*) {.*}@@' \
    ${LIB}/$file > ${LIB}/${file}.sed
  rm -f ${LIB}/$file; mv ${LIB}/${file}.sed ${LIB}/$file
  if cmp $file ${LIB}/$file >/dev/null 2>&1; then
    rm -f ${LIB}/$file
  else
    # Find any include directives that use "file".
    for include in `egrep '^[       ]*#[    ]*include[      ]*"[^/]' ${LIB}/$file | sed -e 's/^[    ]*#[    ]*include[      ]*"\([^"]*\)".*$/\1/'`; do
      dir=`echo $file | sed -e s'|/[^/]*$||'`
      required="$required ${INPUT} $dir/$include ${LIB}/$dir/$include"
    done
  fi
fi

# fix bogus recursive stdlib.h in NEWS-OS 4.0C
file=stdlib.h
if [ -r $file ] && [ ! -r ${LIB}/$file ]; then
  cp $file ${LIB}/$file >/dev/null 2>&1 || echo "Can't copy $file"
  chmod +w ${LIB}/$file 2>/dev/null
  chmod a+r ${LIB}/$file 2>/dev/null
fi

if [ -r ${LIB}/$file ]; then
  echo Fixing $file, recursive inclusion
  sed -e '/^#include <stdlib.h>/i\
#if 0
' \
      -e '/^#include <stdlib.h>/a\
#endif
' \
    ${LIB}/$file > ${LIB}/${file}.sed
  rm -f ${LIB}/$file; mv ${LIB}/${file}.sed ${LIB}/$file
  if cmp $file ${LIB}/$file >/dev/null 2>&1; then
    rm -f ${LIB}/$file
  else
    # Find any include directives that use "file".
    for include in `egrep '^[       ]*#[    ]*include[      ]*"[^/]' ${LIB}/$file | sed -e 's/^[    ]*#[    ]*include[      ]*"\([^"]*\)".*$/\1/'`; do
      dir=`echo $file | sed -e s'|/[^/]*$||'`
      required="$required ${INPUT} $dir/$include ${LIB}/$dir/$include"
    done
  fi
fi

# Avoid nested comments on Ultrix 4.3.
file=rpc/svc.h
if [ -r $file ] && [ ! -r ${LIB}/$file ]; then
  mkdir ${LIB}/rpc 2>/dev/null
  cp $file ${LIB}/$file >/dev/null 2>&1 || echo "Can't copy $file"
  chmod +w ${LIB}/$file 2>/dev/null
  chmod a+r ${LIB}/$file 2>/dev/null
fi

if [ -r ${LIB}/$file ]; then
  echo Fixing $file, nested comment
  sed -e 's@^\( \*	int protocol;  \)/\*@\1*/ /*@' \
    ${LIB}/$file > ${LIB}/$file.sed
  rm -f ${LIB}/$file; mv ${LIB}/${file}.sed ${LIB}/$file
  if cmp $file ${LIB}/$file >/dev/null 2>&1; then
    rm -f ${LIB}/$file
  else
    # Find any include directives that use "file".
    for include in `egrep '^[       ]*#[    ]*include[      ]*"[^/]' ${LIB}/$file | sed -e 's/^[    ]*#[    ]*include[      ]*"\([^"]*\)".*$/\1/'`; do
      dir=`echo $file | sed -e s'|/[^/]*$||'`
      required="$required ${INPUT} $dir/$include ${LIB}/$dir/$include"
    done
  fi
fi

# This file in RISC/os uses /**/ to concatenate two tokens.
file=bsd43/bsd43_.h
if [ -r $file ] && [ ! -r ${LIB}/$file ]; then
  cp $file ${LIB}/$file >/dev/null 2>&1 || echo "Can't copy $file"
  chmod +w ${LIB}/$file 2>/dev/null
  chmod a+r ${LIB}/$file 2>/dev/null
fi
if [ -r ${LIB}/$file ]; then
  sed -e 's|/\*\*/|##|' ${LIB}/$file > ${LIB}/${file}.sed
  rm -f ${LIB}/$file; mv ${LIB}/${file}.sed ${LIB}/$file
  if cmp $file ${LIB}/$file >/dev/null 2>&1; then
    rm -f ${LIB}/$file
  else
    # Find any include directives that use "file".
    for include in `egrep '^[       ]*#[    ]*include[      ]*"[^/]' ${LIB}/$file | sed -e 's/^[    ]*#[    ]*include[      ]*"\([^"]*\)".*$/\1/'`; do
      dir=`echo $file | sed -e s'|/[^/]*$||'`
      required="$required ${INPUT} $dir/$include ${LIB}/$dir/$include"
    done
  fi
fi

file=rpc/rpc.h
if [ -r $file ] && [ ! -r ${LIB}/$file ]; then
  mkdir ${LIB}/rpc 2>/dev/null
  cp $file ${LIB}/$file >/dev/null 2>&1 || echo "Can't copy $file"
  chmod +w ${LIB}/$file 2>/dev/null
  chmod a+r ${LIB}/$file 2>/dev/null
fi

if [ -r ${LIB}/$file ]; then
  echo Fixing $file, nested comment
  sed -e 's@^\(/\*.*rpc/auth_des.h>.*\)/\*@\1*/ /*@' \
    ${LIB}/$file > ${LIB}/$file.sed
  rm -f ${LIB}/$file; mv ${LIB}/${file}.sed ${LIB}/$file
  if cmp $file ${LIB}/$file >/dev/null 2>&1; then
    rm -f ${LIB}/$file
  else
    # Find any include directives that use "file".
    for include in `egrep '^[       ]*#[    ]*include[      ]*"[^/]' ${LIB}/$file | sed -e 's/^[    ]*#[    ]*include[      ]*"\([^"]*\)".*$/\1/'`; do
      dir=`echo $file | sed -e s'|/[^/]*$||'`
      required="$required ${INPUT} $dir/$include ${LIB}/$dir/$include"
    done
  fi
fi

# In limits.h, put #ifndefs around things that are supposed to be defined
# in float.h to avoid redefinition errors if float.h is included first.
# On HP/UX this patch does not work, because on HP/UX limits.h uses
# multi line comments and the inserted #endif winds up inside the
# comment.  Fortunately, HP/UX already uses #ifndefs in limits.h; if
# we find a #ifndef FLT_MIN we assume that all the required #ifndefs
# are there, and we do not add them ourselves.
for file in limits.h sys/limits.h; do
  if [ -r $file ] && [ ! -r ${LIB}/$file ]; then
    mkdir ${LIB}/sys 2>/dev/null
    cp $file ${LIB}/$file >/dev/null 2>&1 || echo "Can't copy $file"
    chmod +w ${LIB}/$file 2>/dev/null
    chmod a+r ${LIB}/$file 2>/dev/null
  fi

  if [ -r ${LIB}/$file ]; then
    if egrep 'ifndef[ 	]+FLT_MIN' ${LIB}/$file >/dev/null; then
      true
    else
      echo Fixing $file
      sed -e '/[ 	]FLT_MIN[ 	]/i\
#ifndef FLT_MIN
'\
	  -e '/[ 	]FLT_MIN[ 	]/a\
#endif
'\
	  -e '/[ 	]FLT_MAX[ 	]/i\
#ifndef FLT_MAX
'\
	  -e '/[ 	]FLT_MAX[ 	]/a\
#endif
'\
	  -e '/[ 	]FLT_DIG[ 	]/i\
#ifndef FLT_DIG
'\
	  -e '/[ 	]FLT_DIG[ 	]/a\
#endif
'\
	  -e '/[ 	]DBL_MIN[ 	]/i\
#ifndef DBL_MIN
'\
	  -e '/[ 	]DBL_MIN[ 	]/a\
#endif
'\
	  -e '/[ 	]DBL_MAX[ 	]/i\
#ifndef DBL_MAX
'\
	  -e '/[ 	]DBL_MAX[ 	]/a\
#endif
'\
	  -e '/[ 	]DBL_DIG[ 	]/i\
#ifndef DBL_DIG
'\
	  -e '/[ 	]DBL_DIG[ 	]/a\
#endif
'\
	${LIB}/$file > ${LIB}/${file}.sed
      rm -f ${LIB}/$file; mv ${LIB}/${file}.sed ${LIB}/$file
    fi
    if cmp $file ${LIB}/$file >/dev/null 2>&1; then
      echo Deleting ${LIB}/$file\; no fixes were needed.
      rm -f ${LIB}/$file
    else
      # Find any include directives that use "file".
      for include in `egrep '^[       ]*#[    ]*include[      ]*"[^/]' ${LIB}/$file | sed -e 's/^[    ]*#[    ]*include[      ]*"\([^"]*\)".*$/\1/'`; do
        dir=`echo $file | sed -e s'|/[^/]*$||'`
        required="$required ${INPUT} $dir/$include ${LIB}/$dir/$include"
      done
    fi
  fi
done

# In math.h, put #ifndefs around things that might be defined in a gcc
# specific math-*.h file.
file=math.h
if [ -r $file ] && [ ! -r ${LIB}/$file ]; then
  cp $file ${LIB}/$file >/dev/null 2>&1 || echo "Can't copy $file"
  chmod +w ${LIB}/$file 2>/dev/null
  chmod a+r ${LIB}/$file 2>/dev/null
fi

if [ -r ${LIB}/$file ]; then
  echo Fixing $file
  sed -e '/define[ 	]HUGE_VAL[ 	]/i\
#ifndef HUGE_VAL
'\
      -e '/define[ 	]HUGE_VAL[ 	]/a\
#endif
'\
    ${LIB}/$file > ${LIB}/${file}.sed
  rm -f ${LIB}/$file; mv ${LIB}/${file}.sed ${LIB}/$file

  # In addition, copy the definition of DBL_MAX from float.h
  # if math.h requires one.  The Lynx math.h requires it.
  if egrep '#define[ 	]*HUGE_VAL[ 	]+DBL_MAX' $file >/dev/null 2>&1; then
    if egrep '#define[ 	]+DBL_MAX[ 	]+' $file >/dev/null 2>&1; then
      true;
    else
      dbl_max_def=`egrep 'define[ 	]+DBL_MAX[ 	]+.*' float.h 2>/dev/null`
      if [ "$dbl_max_def" != "" ]; then
        dbl_max_def=`echo $dbl_max_def | sed 's/.*define[ 	]*DBL_MAX[ 	]*//'`
        sed -e "/define[ 	]HUGE_VAL[ 	]DBL_MAX/s/DBL_MAX/$dbl_max_def/" \
          ${LIB}/$file > ${LIB}/${file}.sed
	rm -f ${LIB}/$file; mv ${LIB}/${file}.sed ${LIB}/$file
      fi
    fi
  fi

  if cmp $file ${LIB}/$file >/dev/null 2>&1; then
    echo Deleting ${LIB}/$file\; no fixes were needed.
    rm -f ${LIB}/$file
  else
    # Find any include directives that use "file".
    for include in `egrep '^[       ]*#[    ]*include[      ]*"[^/]' ${LIB}/$file | sed -e 's/^[    ]*#[    ]*include[      ]*"\([^"]*\)".*$/\1/'`; do
      dir=`echo $file | sed -e s'|/[^/]*$||'`
      required="$required ${INPUT} $dir/$include ${LIB}/$dir/$include"
    done
  fi
fi

# Remove erroneous parentheses in sym.h on Alpha OSF/1.
file=sym.h
if [ -r $file