New file.

5 files changed, 435 insertions, 0 deletions

diff --git a/depcomp b/depcomp
new file mode 100755
index 0000000..e5aa860
--- /dev/null
+++ b/depcomp
@@ -0,0 +1,283 @@
+#! /bin/sh
+
+# depcomp - compile a program generating dependencies as side-effects
+# Copyright (C) 1999 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+# 02111-1307, USA.
+
+# Originally written by Alexandre Oliva <oliva@dcc.unicamp.br>.
+
+if test -z "$depmode" || test -z "$source" || test -z "$object"; then
+  echo "depcomp: Variables source, object and depmode must be set" 1>&2
+  exit 1
+fi
+
+depfile=${depfile-`echo "$object" | sed 's,\([^/]*\)$,.deps/\1,;s/\.\([^.]*\)$/.P\1/'`}
+tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
+
+rm -f "$tmpdepfile"
+
+if test "$depmode" = hp; then
+  # HP compiler uses -M and no extra arg.
+  gccflag=-M
+  depmode=gcc
+fi
+
+case "$depmode" in
+hp)
+  # This case exists only to let depend.m4 do its work.  It works by
+  # looking at the text of this script.  This case will never be run,
+  # since it is checked for above.
+  exit 1
+  ;;
+
+gcc)
+## There are various ways to get dependency output from gcc.  Here's
+## why we pick this rather obscure method:
+## - Don't want to use -MD because we'd like the dependencies to end
+##   up in a subdir.  Having to rename by hand is ugly.
+##   (We might end up doing this anyway to support other compilers.)
+## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
+##   -MM, not -M (despite what the docs say).
+## - Using -M directly means running the compiler twice (even worse
+##   than renaming).
+  if test -z "$gccflag"; then
+    gccflag=-MD,
+  fi
+  if "$@" -Wp,"$gccflag$tmpdepfile"; then :
+  else
+    stat=$?
+    rm -f "$tmpdepfile"
+    exit $stat
+  fi
+  rm -f "$depfile" 
+  echo "$object : \\" > "$depfile"
+  sed 's/^[^:]*: / /' < "$tmpdepfile" >> "$depfile"
+## This next piece of magic avoids the `deleted header file' problem.
+## The problem is that when a header file which appears in a .P file
+## is deleted, the dependency causes make to die (because there is
+## typically no way to rebuild the header).  We avoid this by adding
+## dummy dependencies for each header file.  Too bad gcc doesn't do
+## this for us directly.
+  tr ' ' '
+' < "$tmpdepfile" |
+## Some versions of gcc put a space before the `:'.  On the theory
+## that the space means something, we add a space to the output as
+## well.
+## Some versions of the HPUX 10.20 sed can't process this invocation
+## correctly.  Breaking it into two sed invocations is a workaround.
+    sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+dashmd)
+  # The Java front end to gcc doesn't run cpp, so we can't use the -Wp
+  # trick.  Instead we must use -M and then rename the resulting .d
+  # file.  Yuck.
+  if "$@" -MD; then :
+  else
+    stat=$?
+    rm -f FIXME
+    exit $stat
+  fi
+  FIXME: rewrite the file
+  ;;
+
+sgi)
+  if "$@" -MDupdate "$tmpdepfile"; then :
+  else
+    stat=$?
+    rm -f "$tmpdepfile"
+    exit $stat
+  fi
+  rm -f "$depfile" 
+  echo "$object : \\" > "$depfile"
+  sed 's/^[^:]*: / /' < "$tmpdepfile" >> "$depfile"
+  tr ' ' '
+' < "$tmpdepfile" | \
+## Some versions of the HPUX 10.20 sed can't process this invocation
+## correctly.  Breaking it into two sed invocations is a workaround.
+    sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+#nosideeffect)
+  # This comment above is used by automake to tell side-effect
+  # dependency tracking mechanisms from slower ones.
+
+dashmstdout)
+  # Important note: in order to support this mode, a compiler *must*
+  # always write the proprocessed file to stdout, regardless of -o,
+  # because we must use -o when running libtool.
+  ( IFS=" "
+    case " $* " in
+    *" --mode=compile "*) # this is libtool, let us make it quiet
+      for arg
+      do # cycle over the arguments
+        case "$arg" in
+	"--mode=compile")
+	  # insert --quiet before "--mode=compile"
+	  set fnord "$@" --quiet
+	  shift # fnord
+	  ;;
+	esac
+	set fnord "$@" "$arg"
+	shift # fnord
+	shift # "$arg"
+      done
+      ;;
+    esac
+    "$@" -M | sed 's:^[^:]*\:[ 	]*:'"$object"'\: :' > "$tmpdepfile"
+  ) &
+  proc=$!
+  "$@"
+  stat=$?
+  wait "$proc"
+  if test "$stat" != 0; then exit $stat; fi
+  rm -f "$depfile" 
+  cat < "$tmpdepfile" > "$depfile"
+  tr ' ' '
+' < "$tmpdepfile" | \
+## Some versions of the HPUX 10.20 sed can't process this invocation
+## correctly.  Breaking it into two sed invocations is a workaround.
+    sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+dashXmstdout)
+  # Important note: in order to support this mode, a compiler *must*
+  # always write the proprocessed file to stdout, regardless of -o,
+  # because we must use -o when running libtool.
+  ( IFS=" "
+    case " $* " in
+    *" --mode=compile "*) # this is libtool, let us make it quiet
+      for arg
+      do # cycle over the arguments
+        case "$arg" in
+	"--mode=compile")
+	  # insert --quiet before "--mode=compile"
+	  set fnord "$@" --quiet
+	  shift # fnord
+	  ;;
+	esac
+	set fnord "$@" "$arg"
+	shift # fnord
+	shift # "$arg"
+      done
+      ;;
+    esac
+    "$@" -xM | sed 's:^[^:]*\:[ 	]*:'"$object"'\: :' > "$tmpdepfile"
+  ) &
+  proc=$!
+  "$@"
+  stat=$?
+  wait "$proc"
+  if test "$stat" != 0; then exit $stat; fi
+  rm -f "$depfile" 
+  cat < "$tmpdepfile" > "$depfile"
+  tr ' ' '
+' < "$tmpdepfile" | \
+## Some versions of the HPUX 10.20 sed can't process this invocation
+## correctly.  Breaking it into two sed invocations is a workaround.
+    sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+makedepend)
+  # X makedepend
+  (
+    shift
+    cleared=no
+    for arg in "$@"; do
+      case $cleared in no)
+        set ""; shift
+	cleared=yes
+      esac
+      case "$arg" in
+        -D*|-I*)
+	  set fnord "$@" "$arg"; shift;;
+	-*)
+	  ;;
+	*)
+	  set fnord "$@" "$arg"; shift;;
+      esac
+    done
+    obj_suffix="`echo $object | sed 's/^.*\././'`"
+    touch "$tmpdepfile"
+    ${MAKEDEPEND-makedepend} 2>/dev/null -o"$obj_suffix" -f"$tmpdepfile" "$@"
+  ) &
+  proc=$!
+  "$@"
+  stat=$?
+  wait "$proc"
+  if test "$stat" != 0; then exit $stat; fi
+  rm -f "$depfile" 
+  cat < "$tmpdepfile" > "$depfile"
+  tail +3 "$tmpdepfile" | tr ' ' '
+' | \
+## Some versions of the HPUX 10.20 sed can't process this invocation
+## correctly.  Breaking it into two sed invocations is a workaround.
+    sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
+  rm -f "$tmpdepfile" "$tmpdepfile".bak
+  ;;
+
+cpp)
+  # Important note: in order to support this mode, a compiler *must*
+  # always write the proprocessed file to stdout, regardless of -o,
+  # because we must use -o when running libtool.
+  ( IFS=" "
+    case " $* " in
+    *" --mode=compile "*)
+      for arg
+      do # cycle over the arguments
+        case "$arg" in
+	"--mode=compile")
+	  # insert --quiet before "--mode=compile"
+	  set fnord "$@" --quiet
+	  shift # fnord
+	  ;;
+	esac
+	set fnord "$@" "$arg"
+	shift # fnord
+	shift # "$arg"
+      done
+      ;;
+    esac
+    "$@" -E |
+    sed -n '/^# [0-9][0-9]* "\([^"]*\)"/ s::'"$object"'\: \1:p' > "$tmpdepfile"
+  ) &
+  proc=$!
+  "$@"
+  stat=$?
+  wait "$proc"
+  if test "$stat" != 0; then exit $stat; fi
+  rm -f "$depfile"
+  cat < "$tmpdepfile" > "$depfile"
+  sed < "$tmpdepfile" -e 's/^[^:]*: //' -e 's/$/ :/' >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+none)
+  exec "$@"
+  ;;
+
+*)
+  echo "Unknown depmode $depmode" 1>&2
+  exit 1
+  ;;
+esac
+
+exit 0
diff --git a/lib/malloc.c b/lib/malloc.c
new file mode 100644
index 0000000..5e7674b
--- /dev/null
+++ b/lib/malloc.c
@@ -0,0 +1,38 @@
+/* Work around bug on some systems where malloc (0) fails.
+   Copyright (C) 1997, 1998 Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+/* written by Jim Meyering */
+
+#if HAVE_CONFIG_H
+# include <config.h>
+#endif
+#undef malloc
+
+#include <sys/types.h>
+
+char *malloc ();
+
+/* Allocate an N-byte block of memory from the heap.
+   If N is zero, allocate a 1-byte block.  */
+
+char *
+rpl_malloc (size_t n)
+{
+  if (n == 0)
+    n = 1;
+  return malloc (n);
+}
diff --git a/lib/realloc.c b/lib/realloc.c
new file mode 100644
index 0000000..d0d3e4a
--- /dev/null
+++ b/lib/realloc.c
@@ -0,0 +1,44 @@
+/* Work around bug on some systems where realloc (NULL, 0) fails.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+/* written by Jim Meyering */
+
+#if HAVE_CONFIG_H
+# include <config.h>
+#endif
+#undef realloc
+
+#include <sys/types.h>
+
+char *malloc ();
+char *realloc ();
+
+/* Change the size of an allocated block of memory P to N bytes,
+   with error checking.  If N is zero, change it to 1.  If P is NULL,
+   use malloc.  */
+
+char *
+rpl_realloc (p, n)
+     char *p;
+     size_t n;
+{
+  if (n == 0)
+    n = 1;
+  if (p == 0)
+    return malloc (n);
+  return realloc (p, n);
+}
diff --git a/m4/malloc.m4 b/m4/malloc.m4
new file mode 100644
index 0000000..4978eaf
--- /dev/null
+++ b/m4/malloc.m4
@@ -0,0 +1,35 @@
+#serial 3
+
+dnl From Jim Meyering.
+dnl Determine whether malloc accepts 0 as its argument.
+dnl If it doesn't, arrange to use the replacement function.
+dnl
+
+AC_DEFUN(jm_FUNC_MALLOC,
+[
+ dnl xmalloc.c requires that this symbol be defined so it doesn't
+ dnl mistakenly use a broken malloc -- as it might if this test were omitted.
+ AC_DEFINE_UNQUOTED(HAVE_DONE_WORKING_MALLOC_CHECK, 1,
+                    [Define if the malloc check has been performed. ])
+
+ AC_CACHE_CHECK([for working malloc], jm_cv_func_working_malloc,
+  [AC_TRY_RUN([
+    char *malloc ();
+    int
+    main ()
+    {
+      exit (malloc (0) ? 0 : 1);
+    }
+	  ],
+	 jm_cv_func_working_malloc=yes,
+	 jm_cv_func_working_malloc=no,
+	 dnl When crosscompiling, assume malloc is broken.
+	 jm_cv_func_working_malloc=no)
+  ])
+  if test $jm_cv_func_working_malloc = no; then
+    AC_SUBST(LIBOBJS)
+    LIBOBJS="$LIBOBJS malloc.$ac_objext"
+    AC_DEFINE_UNQUOTED(malloc, rpl_malloc,
+      [Define to rpl_malloc if the replacement function should be used.])
+  fi
+])
diff --git a/m4/realloc.m4 b/m4/realloc.m4
new file mode 100644
index 0000000..bfbef0c
--- /dev/null
+++ b/m4/realloc.m4
@@ -0,0 +1,35 @@
+#serial 3
+
+dnl From Jim Meyering.
+dnl Determine whether realloc works when both arguments are 0.
+dnl If it doesn't, arrange to use the replacement function.
+dnl
+
+AC_DEFUN(jm_FUNC_REALLOC,
+[
+ dnl xmalloc.c requires that this symbol be defined so it doesn't
+ dnl mistakenly use a broken realloc -- as it might if this test were omitted.
+ AC_DEFINE_UNQUOTED(HAVE_DONE_WORKING_REALLOC_CHECK, 1,
+                    [Define if the realloc check has been performed. ])
+
+ AC_CACHE_CHECK([for working realloc], jm_cv_func_working_realloc,
+  [AC_TRY_RUN([
+    char *realloc ();
+    int
+    main ()
+    {
+      exit (realloc (0, 0) ? 0 : 1);
+    }
+	  ],
+	 jm_cv_func_working_realloc=yes,
+	 jm_cv_func_working_realloc=no,
+	 dnl When crosscompiling, assume realloc is broken.
+	 jm_cv_func_working_realloc=no)
+  ])
+  if test $jm_cv_func_working_realloc = no; then
+    AC_SUBST(LIBOBJS)
+    LIBOBJS="$LIBOBJS realloc.$ac_objext"
+    AC_DEFINE_UNQUOTED(realloc, rpl_realloc,
+      [Define to rpl_realloc if the replacement function should be used.])
+  fi
+])