* configure.in: Add AC_FUNC_ALLOCA.

	* configure, config.in: Rebuild.
	* bucomm.h: Add alloca handling, copied from gas/as.h.
	* dlltool.c: Add #pragma alloca for AIX to start of file.
	* nlmconv.c: Likewise.

3 files changed, 1129 insertions, 134 deletions

diff --git a/binutils/ChangeLog b/binutils/ChangeLog
index 2693b19..174a730 100644
--- a/binutils/ChangeLog
+++ b/binutils/ChangeLog
@@ -1,5 +1,11 @@
 Fri Apr  4 13:28:02 1997  Ian Lance Taylor  <ian@cygnus.com>
 
+	* configure.in: Add AC_FUNC_ALLOCA.
+	* configure, config.in: Rebuild.
+	* bucomm.h: Add alloca handling, copied from gas/as.h.
+	* dlltool.c: Add #pragma alloca for AIX to start of file.
+	* nlmconv.c: Likewise.
+
 	* Makefile.in (distclean): Remove site.exp and site.bak.  Remove
 	everything that clean removes.
 
diff --git a/binutils/configure b/binutils/configure
index 3541547..066b290 100755
--- a/binutils/configure
+++ b/binutils/configure
@@ -1,8 +1,8 @@
 #! /bin/sh
 
 # Guess values for system-dependent variables and create Makefiles.
-# Generated automatically using autoconf version 2.8 
-# Copyright (C) 1992, 1993, 1994 Free Software Foundation, Inc.
+# Generated automatically using autoconf version 2.12 
+# Copyright (C) 1992, 93, 94, 95, 96 Free Software Foundation, Inc.
 #
 # This configure script is free software; the Free Software Foundation
 # gives unlimited permission to copy, distribute and modify it.
@@ -15,6 +15,8 @@ ac_help="$ac_help
   --enable-targets        alternative target configurations"
 ac_help="$ac_help
   --enable-shared         build shared BFD library"
+ac_help="$ac_help
+  --enable-commonbfdlib   build shared BFD/opcodes/libiberty library"
 
 # Initialize some variables set by options.
 # The variables have the same names as the options, with
@@ -53,6 +55,8 @@ mandir='${prefix}/man'
 # Initialize some other variables.
 subdirs=
 MFLAGS= MAKEFLAGS=
+# Maximum number of lines to put in a shell here document.
+ac_max_here_lines=12
 
 ac_prev=
 for ac_option
@@ -334,7 +338,7 @@ EOF
     verbose=yes ;;
 
   -version | --version | --versio | --versi | --vers)
-    echo "configure generated by autoconf version 2.8"
+    echo "configure generated by autoconf version 2.12"
     exit 0 ;;
 
   -with-* | --with-*)
@@ -436,11 +440,14 @@ do
 done
 
 # NLS nuisances.
-# Only set LANG and LC_ALL to C if already set.
-# These must not be set unconditionally because not all systems understand
-# e.g. LANG=C (notably SCO).
-if test "${LC_ALL+set}" = set; then LC_ALL=C; export LC_ALL; fi
+# Only set these to C if already set.  These must not be set unconditionally
+# because not all systems understand e.g. LANG=C (notably SCO).
+# Fixing LC_MESSAGES prevents Solaris sh from translating var values in `set'!
+# Non-C LC_CTYPE values break the ctype check.
 if test "${LANG+set}"   = set; then LANG=C;   export LANG;   fi
+if test "${LC_ALL+set}" = set; then LC_ALL=C; export LC_ALL; fi
+if test "${LC_MESSAGES+set}" = set; then LC_MESSAGES=C; export LC_MESSAGES; fi
+if test "${LC_CTYPE+set}"    = set; then LC_CTYPE=C;    export LC_CTYPE;    fi
 
 # confdefs.h avoids OS command line length limits that DEFS can exceed.
 rm -rf conftest* confdefs.h
@@ -502,6 +509,7 @@ ac_ext=c
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
 ac_link='${CC-cc} -o conftest $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
+cross_compiling=$ac_cv_prog_cc_cross
 
 if (echo "testing\c"; echo 1,2,3) | grep c >/dev/null; then
   # Stardent Vistra SVR4 grep lacks -e, says ghazi@caip.rutgers.edu.
@@ -531,9 +539,22 @@ fi
 if test "${enable_shared+set}" = set; then
   enableval="$enable_shared"
   case "${enableval}" in
-  yes) shared=true ;;
+  yes) shared=true shared_bfd=true shared_opcodes=true ;;
   no)  shared=false ;;
-  *)   { echo "configure: error: bad value ${enableval} for BFD shared option" 1>&2; exit 1; } ;;
+  *bfd*opcodes*) shared=true shared_bfd=true shared_opcodes=true ;;
+  *opcodes*bfd*) shared=true shared_bfd=true shared_opcodes=true ;;
+  *bfd*) shared=true shared_bfd=true ;;
+  *opcodes*) shared=true shared_opcodes=true ;;
+  *) shared=false ;;
+esac
+fi
+# Check whether --enable-commonbfdlib or --disable-commonbfdlib was given.
+if test "${enable_commonbfdlib+set}" = set; then
+  enableval="$enable_commonbfdlib"
+  case "${enableval}" in
+  yes) commonbfdlib=true ;;
+  no)  commonbfdlib=false ;;
+  *)   { echo "configure: error: bad value ${enableval} for BFD commonbfdlib option" 1>&2; exit 1; } ;;
 esac
 fi
 
@@ -586,6 +607,7 @@ else { echo "configure: error: can not run $ac_config_sub" 1>&2; exit 1; }
 fi
 
 echo $ac_n "checking host system type""... $ac_c" 1>&6
+echo "configure:611: checking host system type" >&5
 
 host_alias=$host
 case "$host_alias" in
@@ -600,12 +622,13 @@ NONE)
 esac
 
 host=`$ac_config_sub $host_alias`
-host_cpu=`echo $host | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\1/'`
-host_vendor=`echo $host | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\2/'`
-host_os=`echo $host | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\3/'`
+host_cpu=`echo $host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
+host_vendor=`echo $host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'`
+host_os=`echo $host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
 echo "$ac_t""$host" 1>&6
 
 echo $ac_n "checking target system type""... $ac_c" 1>&6
+echo "configure:632: checking target system type" >&5
 
 target_alias=$target
 case "$target_alias" in
@@ -617,12 +640,13 @@ NONE)
 esac
 
 target=`$ac_config_sub $target_alias`
-target_cpu=`echo $target | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\1/'`
-target_vendor=`echo $target | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\2/'`
-target_os=`echo $target | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\3/'`
+target_cpu=`echo $target | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
+target_vendor=`echo $target | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'`
+target_os=`echo $target | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
 echo "$ac_t""$target" 1>&6
 
 echo $ac_n "checking build system type""... $ac_c" 1>&6
+echo "configure:650: checking build system type" >&5
 
 build_alias=$build
 case "$build_alias" in
@@ -634,9 +658,9 @@ NONE)
 esac
 
 build=`$ac_config_sub $build_alias`
-build_cpu=`echo $build | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\1/'`
-build_vendor=`echo $build | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\2/'`
-build_os=`echo $build | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\3/'`
+build_cpu=`echo $build | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
+build_vendor=`echo $build | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'`
+build_os=`echo $build | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
 echo "$ac_t""$build" 1>&6
 
 test "$host_alias" != "$target_alias" &&
@@ -674,11 +698,13 @@ test "$program_transform_name" = "" && program_transform_name="s,x,x,"
 
 HDEFINES=
 HLDFLAGS=
+HLDENV=
 RPATH_ENVVAR=LD_LIBRARY_PATH
 
 # Extract the first word of "gcc", so it can be a program name with args.
 set dummy gcc; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
+echo "configure:708: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -707,6 +733,7 @@ if test -z "$CC"; then
   # Extract the first word of "cc", so it can be a program name with args.
 set dummy cc; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
+echo "configure:737: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -753,7 +780,47 @@ fi
   test -z "$CC" && { echo "configure: error: no acceptable cc found in \$PATH" 1>&2; exit 1; }
 fi
 
+echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works""... $ac_c" 1>&6
+echo "configure:785: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works" >&5
+
+ac_ext=c
+# CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
+ac_link='${CC-cc} -o conftest $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
+cross_compiling=$ac_cv_prog_cc_cross
+
+cat > conftest.$ac_ext <<EOF
+#line 795 "configure"
+#include "confdefs.h"
+main(){return(0);}
+EOF
+if { (eval echo configure:799: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+  ac_cv_prog_cc_works=yes
+  # If we can't run a trivial program, we are probably using a cross compiler.
+  if (./conftest; exit) 2>/dev/null; then
+    ac_cv_prog_cc_cross=no
+  else
+    ac_cv_prog_cc_cross=yes
+  fi
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  ac_cv_prog_cc_works=no
+fi
+rm -fr conftest*
+
+echo "$ac_t""$ac_cv_prog_cc_works" 1>&6
+if test $ac_cv_prog_cc_works = no; then
+  { echo "configure: error: installation or configuration problem: C compiler cannot create executables." 1>&2; exit 1; }
+fi
+echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler""... $ac_c" 1>&6
+echo "configure:819: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler" >&5
+echo "$ac_t""$ac_cv_prog_cc_cross" 1>&6
+cross_compiling=$ac_cv_prog_cc_cross
+
 echo $ac_n "checking whether we are using GNU C""... $ac_c" 1>&6
+echo "configure:824: checking whether we are using GNU C" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_gcc'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -762,7 +829,7 @@ else
   yes;
 #endif
 EOF
-if { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:766: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
+if { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:833: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
   ac_cv_prog_gcc=yes
 else
   ac_cv_prog_gcc=no
@@ -770,29 +837,34 @@ fi
 fi
 
 echo "$ac_t""$ac_cv_prog_gcc" 1>&6
+
 if test $ac_cv_prog_gcc = yes; then
   GCC=yes
-  if test "${CFLAGS+set}" != set; then
-    echo $ac_n "checking whether ${CC-cc} accepts -g""... $ac_c" 1>&6
-if eval "test \"`echo '$''{'ac_cv_prog_gcc_g'+set}'`\" = set"; then
+  ac_test_CFLAGS="${CFLAGS+set}"
+  ac_save_CFLAGS="$CFLAGS"
+  CFLAGS=
+  echo $ac_n "checking whether ${CC-cc} accepts -g""... $ac_c" 1>&6
+echo "configure:848: checking whether ${CC-cc} accepts -g" >&5
+if eval "test \"`echo '$''{'ac_cv_prog_cc_g'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   echo 'void f(){}' > conftest.c
 if test -z "`${CC-cc} -g -c conftest.c 2>&1`"; then
-  ac_cv_prog_gcc_g=yes
+  ac_cv_prog_cc_g=yes
 else
-  ac_cv_prog_gcc_g=no
+  ac_cv_prog_cc_g=no
 fi
 rm -f conftest*
 
 fi
 
-echo "$ac_t""$ac_cv_prog_gcc_g" 1>&6
-    if test $ac_cv_prog_gcc_g = yes; then
-      CFLAGS="-g -O"
-    else
-      CFLAGS="-O"
-    fi
+echo "$ac_t""$ac_cv_prog_cc_g" 1>&6
+  if test "$ac_test_CFLAGS" = set; then
+    CFLAGS="$ac_save_CFLAGS"
+  elif test $ac_cv_prog_cc_g = yes; then
+    CFLAGS="-g -O2"
+  else
+    CFLAGS="-O2"
   fi
 else
   GCC=
@@ -805,11 +877,13 @@ fi
 
 
 
+
 AR=${AR-ar}
 
 # Extract the first word of "ranlib", so it can be a program name with args.
 set dummy ranlib; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
+echo "configure:887: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_RANLIB'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -846,11 +920,12 @@ fi
 # SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
 # ./install, which can be erroneously created by make from ./install.sh.
 echo $ac_n "checking for a BSD compatible install""... $ac_c" 1>&6
+echo "configure:924: checking for a BSD compatible install" >&5
 if test -z "$INSTALL"; then
 if eval "test \"`echo '$''{'ac_cv_path_install'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
-    IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}:"
+    IFS="${IFS= 	}"; ac_save_IFS="$IFS"; IFS="${IFS}:"
   for ac_dir in $PATH; do
     # Account for people who put trailing slashes in PATH elements.
     case "$ac_dir/" in
@@ -873,7 +948,7 @@ else
       ;;
     esac
   done
-  IFS="$ac_save_ifs"
+  IFS="$ac_save_IFS"
 
 fi
   if test "${ac_cv_path_install+set}" = set; then
@@ -900,44 +975,43 @@ test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
 # need to handle some hosts specially.
 BFDLIB='-L../bfd -lbfd'
 OPCODES='-L../opcodes -lopcodes'
-if test "${shared}" = "true"; then
-  case "${host}" in
-  *-*-sunos*)
-    # On SunOS, we must link against the name we are going to install,
-    # not -lbfd, since SunOS does not support SONAME.
+
+case "${host}" in
+*-*-sunos*)
+  # On SunOS, we must link against the name we are going to install,
+  # not -lbfd, since SunOS does not support SONAME.
+  if test "${shared_bfd}" = "true"; then
     BFDLIB='-L../bfd -l`echo bfd | sed '"'"'$(program_transform_name)'"'"'`'
+  fi
+  if test "${shared_opcodes}" = "true"; then
     OPCODES='-L../opcodes -l`echo opcodes | sed '"'"'$(program_transform_name)'"'"'`'
-    ;;
-  esac
-fi
+  fi
+  ;;
+alpha*-*-osf*)
+  # On Alpha OSF/1, the native linker searches all the -L
+  # directories for any LIB.so files, and only then searches for any
+  # LIB.a files.  That means that if there is an installed
+  # libbfd.so, but this build is not done with --enable-shared, the
+  # link will wind up being against the install libbfd.so rather
+  # than the newly built libbfd.  To avoid this, we must explicitly
+  # link against libbfd.a when --enable-shared is not used.
+  if test "${shared_bfd}" != "true"; then
+    BFDLIB='../bfd/libbfd.a'
+  fi
+  if test "${shared_opcodes}" != "true"; then
+    OPCODES='../opcodes/libopcodes.a'
+  fi
+  ;;
+esac
 
+if test "${commonbfdlib}" = "true"; then
+  # when a shared libbfd is built with --enable-commonbfdlib,
+  # all of libopcodes is available in libbfd.so
+  OPCODES=
+fi
 
 
-# If we cannot run a trivial program, we must be cross compiling.
-echo $ac_n "checking whether cross-compiling""... $ac_c" 1>&6
-if eval "test \"`echo '$''{'ac_cv_c_cross'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
-else
-  if test "$cross_compiling" = yes; then
-  ac_cv_c_cross=yes
-else
-cat > conftest.$ac_ext <<EOF
-#line 926 "configure"
-#include "confdefs.h"
-main(){return(0);}
-EOF
-{ (eval echo configure:930: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }
-if test -s conftest && (./conftest; exit) 2>/dev/null; then
-  ac_cv_c_cross=no
-else
-  ac_cv_c_cross=yes
-fi
-fi
-rm -fr conftest*
-fi
 
-echo "$ac_t""$ac_cv_c_cross" 1>&6
-cross_compiling=$ac_cv_c_cross
 
 # Put a plausible default for CC_FOR_BUILD in Makefile.
 if test -z "$CC_FOR_BUILD"; then
@@ -950,6 +1024,7 @@ fi
 
 
 echo $ac_n "checking how to run the C preprocessor""... $ac_c" 1>&6
+echo "configure:1028: checking how to run the C preprocessor" >&5
 # On Suns, sometimes $CPP names a directory.
 if test -n "$CPP" && test -d "$CPP"; then
   CPP=
@@ -964,33 +1039,37 @@ else
   # On the NeXT, cc -E runs the code through the compiler's parser,
   # not just through cpp.
   cat > conftest.$ac_ext <<EOF
-#line 968 "configure"
+#line 1043 "configure"
 #include "confdefs.h"
 #include <assert.h>
 Syntax Error
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:974: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:1049: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out`
 if test -z "$ac_err"; then
   :
 else
   echo "$ac_err" >&5
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
   rm -rf conftest*
   CPP="${CC-cc} -E -traditional-cpp"
   cat > conftest.$ac_ext <<EOF
-#line 983 "configure"
+#line 1060 "configure"
 #include "confdefs.h"
 #include <assert.h>
 Syntax Error
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:989: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:1066: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out`
 if test -z "$ac_err"; then
   :
 else
   echo "$ac_err" >&5
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
   rm -rf conftest*
   CPP=/lib/cpp
 fi
@@ -1007,24 +1086,27 @@ echo "$ac_t""$CPP" 1>&6
 
 for ac_hdr in string.h strings.h stdlib.h unistd.h fcntl.h sys/file.h
 do
-ac_safe=`echo "$ac_hdr" | tr './\055' '___'`
+ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
+echo "configure:1092: checking for $ac_hdr" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1017 "configure"
+#line 1097 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1022: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:1102: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out`
 if test -z "$ac_err"; then
   rm -rf conftest*
   eval "ac_cv_header_$ac_safe=yes"
 else
   echo "$ac_err" >&5
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
   rm -rf conftest*
   eval "ac_cv_header_$ac_safe=no"
 fi
@@ -1032,7 +1114,7 @@ rm -f conftest*
 fi
 if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
   echo "$ac_t""yes" 1>&6
-    ac_tr_hdr=HAVE_`echo $ac_hdr | tr 'abcdefghijklmnopqrstuvwxyz./\055' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ___'`
+    ac_tr_hdr=HAVE_`echo $ac_hdr | sed 'y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%'`
   cat >> confdefs.h <<EOF
 #define $ac_tr_hdr 1
 EOF
@@ -1043,11 +1125,12 @@ fi
 done
 
 echo $ac_n "checking for sys/wait.h that is POSIX.1 compatible""... $ac_c" 1>&6
+echo "configure:1129: checking for sys/wait.h that is POSIX.1 compatible" >&5
 if eval "test \"`echo '$''{'ac_cv_header_sys_wait_h'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1051 "configure"
+#line 1134 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/wait.h>
@@ -1057,22 +1140,22 @@ else
 #ifndef WIFEXITED
 #define WIFEXITED(stat_val) (((stat_val) & 255) == 0)
 #endif
-int main() { return 0; }
-int t() {
+int main() {
 int s;
 wait (&s);
 s = WIFEXITED (s) ? WEXITSTATUS (s) : 1;
 ; return 0; }
 EOF
-if { (eval echo configure:1068: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1150: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_header_sys_wait_h=yes
 else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
   rm -rf conftest*
   ac_cv_header_sys_wait_h=no
 fi
 rm -f conftest*
-
 fi
 
 echo "$ac_t""$ac_cv_header_sys_wait_h" 1>&6
@@ -1083,23 +1166,254 @@ EOF
 
 fi
 
+# The Ultrix 4.2 mips builtin alloca declared by alloca.h only works
+# for constant arguments.  Useless!
+echo $ac_n "checking for working alloca.h""... $ac_c" 1>&6
+echo "configure:1173: checking for working alloca.h" >&5
+if eval "test \"`echo '$''{'ac_cv_header_alloca_h'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  cat > conftest.$ac_ext <<EOF
+#line 1178 "configure"
+#include "confdefs.h"
+#include <alloca.h>
+int main() {
+char *p = alloca(2 * sizeof(int));
+; return 0; }
+EOF
+if { (eval echo configure:1185: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+  rm -rf conftest*
+  ac_cv_header_alloca_h=yes
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  ac_cv_header_alloca_h=no
+fi
+rm -f conftest*
+fi
+
+echo "$ac_t""$ac_cv_header_alloca_h" 1>&6
+if test $ac_cv_header_alloca_h = yes; then
+  cat >> confdefs.h <<\EOF
+#define HAVE_ALLOCA_H 1
+EOF
+
+fi
+
+echo $ac_n "checking for alloca""... $ac_c" 1>&6
+echo "configure:1206: checking for alloca" >&5
+if eval "test \"`echo '$''{'ac_cv_func_alloca_works'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  cat > conftest.$ac_ext <<EOF
+#line 1211 "configure"
+#include "confdefs.h"
+
+#ifdef __GNUC__
+# define alloca __builtin_alloca
+#else
+# if HAVE_ALLOCA_H
+#  include <alloca.h>
+# else
+#  ifdef _AIX
+ #pragma alloca
+#  else
+#   ifndef alloca /* predefined by HP cc +Olibcalls */
+char *alloca ();
+#   endif
+#  endif
+# endif
+#endif
+
+int main() {
+char *p = (char *) alloca(1);
+; return 0; }
+EOF
+if { (eval echo configure:1234: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+  rm -rf conftest*
+  ac_cv_func_alloca_works=yes
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  ac_cv_func_alloca_works=no
+fi
+rm -f conftest*
+fi
+
+echo "$ac_t""$ac_cv_func_alloca_works" 1>&6
+if test $ac_cv_func_alloca_works = yes; then
+  cat >> confdefs.h <<\EOF
+#define HAVE_ALLOCA 1
+EOF
+
+fi
+
+if test $ac_cv_func_alloca_works = no; then
+  # The SVR3 libPW and SVR4 libucb both contain incompatible functions
+  # that cause trouble.  Some versions do not even contain alloca or
+  # contain a buggy version.  If you still want to use their alloca,
+  # use ar to extract alloca.o from them instead of compiling alloca.c.
+  ALLOCA=alloca.o
+  cat >> confdefs.h <<\EOF
+#define C_ALLOCA 1
+EOF
+
+
+echo $ac_n "checking whether alloca needs Cray hooks""... $ac_c" 1>&6
+echo "configure:1266: checking whether alloca needs Cray hooks" >&5
+if eval "test \"`echo '$''{'ac_cv_os_cray'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  cat > conftest.$ac_ext <<EOF
+#line 1271 "configure"
+#include "confdefs.h"
+#if defined(CRAY) && ! defined(CRAY2)
+webecray
+#else
+wenotbecray
+#endif
+
+EOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  egrep "webecray" >/dev/null 2>&1; then
+  rm -rf conftest*
+  ac_cv_os_cray=yes
+else
+  rm -rf conftest*
+  ac_cv_os_cray=no
+fi
+rm -f conftest*
+
+fi
+
+echo "$ac_t""$ac_cv_os_cray" 1>&6
+if test $ac_cv_os_cray = yes; then
+for ac_func in _getb67 GETB67 getb67; do
+  echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
+echo "configure:1296: checking for $ac_func" >&5
+if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  cat > conftest.$ac_ext <<EOF
+#line 1301 "configure"
+#include "confdefs.h"
+/* System header to define __stub macros and hopefully few prototypes,
+    which can conflict with char $ac_func(); below.  */
+#include <assert.h>
+/* Override any gcc2 internal prototype to avoid an error.  */
+/* We use char because int might match the return type of a gcc2
+    builtin and then its argument prototype would still apply.  */
+char $ac_func();
+
+int main() {
+
+/* The GNU C library defines this for functions which it implements
+    to always fail with ENOSYS.  Some functions are actually named
+    something starting with __ and the normal name is an alias.  */
+#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
+choke me
+#else
+$ac_func();
+#endif
+
+; return 0; }
+EOF
+if { (eval echo configure:1324: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+  rm -rf conftest*
+  eval "ac_cv_func_$ac_func=yes"
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  eval "ac_cv_func_$ac_func=no"
+fi
+rm -f conftest*
+fi
+
+if eval "test \"`echo '$ac_cv_func_'$ac_func`\" = yes"; then
+  echo "$ac_t""yes" 1>&6
+  cat >> confdefs.h <<EOF
+#define CRAY_STACKSEG_END $ac_func
+EOF
+
+  break
+else
+  echo "$ac_t""no" 1>&6
+fi
+
+done
+fi
+
+echo $ac_n "checking stack direction for C alloca""... $ac_c" 1>&6
+echo "configure:1351: checking stack direction for C alloca" >&5
+if eval "test \"`echo '$''{'ac_cv_c_stack_direction'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  if test "$cross_compiling" = yes; then
+  ac_cv_c_stack_direction=0
+else
+  cat > conftest.$ac_ext <<EOF
+#line 1359 "configure"
+#include "confdefs.h"
+find_stack_direction ()
+{
+  static char *addr = 0;
+  auto char dummy;
+  if (addr == 0)
+    {
+      addr = &dummy;
+      return find_stack_direction ();
+    }
+  else
+    return (&dummy > addr) ? 1 : -1;
+}
+main ()
+{
+  exit (find_stack_direction() < 0);
+}
+EOF
+if { (eval echo configure:1378: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest && (./conftest; exit) 2>/dev/null
+then
+  ac_cv_c_stack_direction=1
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -fr conftest*
+  ac_cv_c_stack_direction=-1
+fi
+rm -fr conftest*
+fi
+
+fi
+
+echo "$ac_t""$ac_cv_c_stack_direction" 1>&6
+cat >> confdefs.h <<EOF
+#define STACK_DIRECTION $ac_cv_c_stack_direction
+EOF
+
+fi
+
 for ac_func in sbrk utimes
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
+echo "configure:1402: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1094 "configure"
+#line 1407 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
 #include <assert.h>
 /* Override any gcc2 internal prototype to avoid an error.  */
+/* We use char because int might match the return type of a gcc2
+    builtin and then its argument prototype would still apply.  */
 char $ac_func();
 
-int main() { return 0; }
-int t() {
+int main() {
 
 /* The GNU C library defines this for functions which it implements
     to always fail with ENOSYS.  Some functions are actually named
@@ -1112,16 +1426,18 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:1116: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
+if { (eval echo configure:1430: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=no"
 fi
 rm -f conftest*
-
 fi
+
 if eval "test \"`echo '$ac_cv_func_'$ac_func`\" = yes"; then
   echo "$ac_t""yes" 1>&6
     ac_tr_func=HAVE_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
@@ -1134,29 +1450,431 @@ else
 fi
 done
 
+if test "x$cross_compiling" = "xno"; then
+  echo $ac_n "checking for ANSI C header files""... $ac_c" 1>&6
+echo "configure:1456: checking for ANSI C header files" >&5
+if eval "test \"`echo '$''{'ac_cv_header_stdc'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  cat > conftest.$ac_ext <<EOF
+#line 1461 "configure"
+#include "confdefs.h"
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+#include <float.h>
+EOF
+ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
+{ (eval echo configure:1469: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+ac_err=`grep -v '^ *+' conftest.out`
+if test -z "$ac_err"; then
+  rm -rf conftest*
+  ac_cv_header_stdc=yes
+else
+  echo "$ac_err" >&5
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  ac_cv_header_stdc=no
+fi
+rm -f conftest*
+
+if test $ac_cv_header_stdc = yes; then
+  # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
+cat > conftest.$ac_ext <<EOF
+#line 1486 "configure"
+#include "confdefs.h"
+#include <string.h>
+EOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  egrep "memchr" >/dev/null 2>&1; then
+  :
+else
+  rm -rf conftest*
+  ac_cv_header_stdc=no
+fi
+rm -f conftest*
+
+fi
+
+if test $ac_cv_header_stdc = yes; then
+  # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.
+cat > conftest.$ac_ext <<EOF
+#line 1504 "configure"
+#include "confdefs.h"
+#include <stdlib.h>
+EOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  egrep "free" >/dev/null 2>&1; then
+  :
+else
+  rm -rf conftest*
+  ac_cv_header_stdc=no
+fi
+rm -f conftest*
+
+fi
+
+if test $ac_cv_header_stdc = yes; then
+  # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi.
+if test "$cross_compiling" = yes; then
+  :
+else
+  cat > conftest.$ac_ext <<EOF
+#line 1525 "configure"
+#include "confdefs.h"
+#include <ctype.h>
+#define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
+#define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
+#define XOR(e, f) (((e) && !(f)) || (!(e) && (f)))
+int main () { int i; for (i = 0; i < 256; i++)
+if (XOR (islower (i), ISLOWER (i)) || toupper (i) != TOUPPER (i)) exit(2);
+exit (0); }
+
+EOF
+if { (eval echo configure:1536: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest && (./conftest; exit) 2>/dev/null
+then
+  :
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -fr conftest*
+  ac_cv_header_stdc=no
+fi
+rm -fr conftest*
+fi
+
+fi
+fi
+
+echo "$ac_t""$ac_cv_header_stdc" 1>&6
+if test $ac_cv_header_stdc = yes; then
+  cat >> confdefs.h <<\EOF
+#define STDC_HEADERS 1
+EOF
+
+fi
+
+echo $ac_n "checking for pid_t""... $ac_c" 1>&6
+echo "configure:1560: checking for pid_t" >&5
+if eval "test \"`echo '$''{'ac_cv_type_pid_t'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  cat > conftest.$ac_ext <<EOF
+#line 1565 "configure"
+#include "confdefs.h"
+#include <sys/types.h>
+#if STDC_HEADERS
+#include <stdlib.h>
+#include <stddef.h>
+#endif
+EOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  egrep "pid_t[^a-zA-Z_0-9]" >/dev/null 2>&1; then
+  rm -rf conftest*
+  ac_cv_type_pid_t=yes
+else
+  rm -rf conftest*
+  ac_cv_type_pid_t=no
+fi
+rm -f conftest*
+
+fi
+echo "$ac_t""$ac_cv_type_pid_t" 1>&6
+if test $ac_cv_type_pid_t = no; then
+  cat >> confdefs.h <<\EOF
+#define pid_t int
+EOF
+
+fi
+
+ac_safe=`echo "vfork.h" | sed 'y%./+-%__p_%'`
+echo $ac_n "checking for vfork.h""... $ac_c" 1>&6
+echo "configure:1594: checking for vfork.h" >&5
+if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  cat > conftest.$ac_ext <<EOF
+#line 1599 "configure"
+#include "confdefs.h"
+#include <vfork.h>
+EOF
+ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
+{ (eval echo configure:1604: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+ac_err=`grep -v '^ *+' conftest.out`
+if test -z "$ac_err"; then
+  rm -rf conftest*
+  eval "ac_cv_header_$ac_safe=yes"
+else
+  echo "$ac_err" >&5
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  eval "ac_cv_header_$ac_safe=no"
+fi
+rm -f conftest*
+fi
+if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
+  echo "$ac_t""yes" 1>&6
+  cat >> confdefs.h <<\EOF
+#define HAVE_VFORK_H 1
+EOF
+
+else
+  echo "$ac_t""no" 1>&6
+fi
+
+echo $ac_n "checking for working vfork""... $ac_c" 1>&6
+echo "configure:1629: checking for working vfork" >&5
+if eval "test \"`echo '$''{'ac_cv_func_vfork_works'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  if test "$cross_compiling" = yes; then
+  echo $ac_n "checking for vfork""... $ac_c" 1>&6
+echo "configure:1635: checking for vfork" >&5
+if eval "test \"`echo '$''{'ac_cv_func_vfork'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  cat > conftest.$ac_ext <<EOF
+#line 1640 "configure"
+#include "confdefs.h"
+/* System header to define __stub macros and hopefully few prototypes,
+    which can conflict with char vfork(); below.  */
+#include <assert.h>
+/* Override any gcc2 internal prototype to avoid an error.  */
+/* We use char because int might match the return type of a gcc2
+    builtin and then its argument prototype would still apply.  */
+char vfork();
+
+int main() {
+
+/* The GNU C library defines this for functions which it implements
+    to always fail with ENOSYS.  Some functions are actually named
+    something starting with __ and the normal name is an alias.  */
+#if defined (__stub_vfork) || defined (__stub___vfork)
+choke me
+#else
+vfork();
+#endif
+
+; return 0; }
+EOF
+if { (eval echo configure:1663: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+  rm -rf conftest*
+  eval "ac_cv_func_vfork=yes"
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  eval "ac_cv_func_vfork=no"
+fi
+rm -f conftest*
+fi
+
+if eval "test \"`echo '$ac_cv_func_'vfork`\" = yes"; then
+  echo "$ac_t""yes" 1>&6
+  :
+else
+  echo "$ac_t""no" 1>&6
+fi
+
+else
+  cat > conftest.$ac_ext <<EOF
+#line 1684 "configure"
+#include "confdefs.h"
+/* Thanks to Paul Eggert for this test.  */
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#ifdef HAVE_VFORK_H
+#include <vfork.h>
+#endif
+/* On some sparc systems, changes by the child to local and incoming
+   argument registers are propagated back to the parent.
+   The compiler is told about this with #include <vfork.h>,
+   but some compilers (e.g. gcc -O) don't grok <vfork.h>.
+   Test for this by using a static variable whose address
+   is put into a register that is clobbered by the vfork.  */
+static
+#ifdef __cplusplus
+sparc_address_test (int arg)
+#else
+sparc_address_test (arg) int arg;
+#endif
+{
+  static pid_t child;
+  if (!child) {
+    child = vfork ();
+    if (child < 0) {
+      perror ("vfork");
+      _exit(2);
+    }
+    if (!child) {
+      arg = getpid();
+      write(-1, "", 0);
+      _exit (arg);
+    }
+  }
+}
+main() {
+  pid_t parent = getpid ();
+  pid_t child;
+
+  sparc_address_test ();
+
+  child = vfork ();
+
+  if (child == 0) {
+    /* Here is another test for sparc vfork register problems.
+       This test uses lots of local variables, at least
+       as many local variables as main has allocated so far
+       including compiler temporaries.  4 locals are enough for
+       gcc 1.40.3 on a Solaris 4.1.3 sparc, but we use 8 to be safe.
+       A buggy compiler should reuse the register of parent
+       for one of the local variables, since it will think that
+       parent can't possibly be used any more in this routine.
+       Assigning to the local variable will thus munge parent
+       in the parent process.  */
+    pid_t
+      p = getpid(), p1 = getpid(), p2 = getpid(), p3 = getpid(),
+      p4 = getpid(), p5 = getpid(), p6 = getpid(), p7 = getpid();
+    /* Convince the compiler that p..p7 are live; otherwise, it might
+       use the same hardware register for all 8 local variables.  */
+    if (p != p1 || p != p2 || p != p3 || p != p4
+	|| p != p5 || p != p6 || p != p7)
+      _exit(1);
+
+    /* On some systems (e.g. IRIX 3.3),
+       vfork doesn't separate parent from child file descriptors.
+       If the child closes a descriptor before it execs or exits,
+       this munges the parent's descriptor as well.
+       Test for this by closing stdout in the child.  */
+    _exit(close(fileno(stdout)) != 0);
+  } else {
+    int status;
+    struct stat st;
+
+    while (wait(&status) != child)
+      ;
+    exit(
+	 /* Was there some problem with vforking?  */
+	 child < 0
+
+	 /* Did the child fail?  (This shouldn't happen.)  */
+	 || status
+
+	 /* Did the vfork/compiler bug occur?  */
+	 || parent != getpid()
+
+	 /* Did the file descriptor bug occur?  */
+	 || fstat(fileno(stdout), &st) != 0
+	 );
+  }
+}
+EOF
+if { (eval echo configure:1779: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest && (./conftest; exit) 2>/dev/null
+then
+  ac_cv_func_vfork_works=yes
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -fr conftest*
+  ac_cv_func_vfork_works=no
+fi
+rm -fr conftest*
+fi
+
+fi
+
+echo "$ac_t""$ac_cv_func_vfork_works" 1>&6
+if test $ac_cv_func_vfork_works = no; then
+  cat >> confdefs.h <<\EOF
+#define vfork fork
+EOF
+
+fi
+
+else
+  echo $ac_n "checking for vfork""... $ac_c" 1>&6
+echo "configure:1803: checking for vfork" >&5
+if eval "test \"`echo '$''{'ac_cv_func_vfork'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  cat > conftest.$ac_ext <<EOF
+#line 1808 "configure"
+#include "confdefs.h"
+/* System header to define __stub macros and hopefully few prototypes,
+    which can conflict with char vfork(); below.  */
+#include <assert.h>
+/* Override any gcc2 internal prototype to avoid an error.  */
+/* We use char because int might match the return type of a gcc2
+    builtin and then its argument prototype would still apply.  */
+char vfork();
+
+int main() {
+
+/* The GNU C library defines this for functions which it implements
+    to always fail with ENOSYS.  Some functions are actually named
+    something starting with __ and the normal name is an alias.  */
+#if defined (__stub_vfork) || defined (__stub___vfork)
+choke me
+#else
+vfork();
+#endif
+
+; return 0; }
+EOF
+if { (eval echo configure:1831: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+  rm -rf conftest*
+  eval "ac_cv_func_vfork=yes"
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  eval "ac_cv_func_vfork=no"
+fi
+rm -f conftest*
+fi
+
+if eval "test \"`echo '$ac_cv_func_'vfork`\" = yes"; then
+  echo "$ac_t""yes" 1>&6
+  :
+else
+  echo "$ac_t""no" 1>&6
+cat >> confdefs.h <<\EOF
+#define vfork fork
+EOF
+
+fi
+
+fi
 
 echo $ac_n "checking for time_t in time.h""... $ac_c" 1>&6
+echo "configure:1857: checking for time_t in time.h" >&5
 if eval "test \"`echo '$''{'bu_cv_decl_time_t_time_h'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1144 "configure"
+#line 1862 "configure"
 #include "confdefs.h"
 #include <time.h>
-int main() { return 0; }
-int t() {
+int main() {
 time_t i;
 ; return 0; }
 EOF
-if { (eval echo configure:1152: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1869: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   bu_cv_decl_time_t_time_h=yes
 else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
   rm -rf conftest*
   bu_cv_decl_time_t_time_h=no
 fi
 rm -f conftest*
-
 fi
 
 echo "$ac_t""$bu_cv_decl_time_t_time_h" 1>&6
@@ -1168,27 +1886,28 @@ EOF
 fi
 
 echo $ac_n "checking for time_t in sys/types.h""... $ac_c" 1>&6
+echo "configure:1890: checking for time_t in sys/types.h" >&5
 if eval "test \"`echo '$''{'bu_cv_decl_time_t_types_h'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1176 "configure"
+#line 1895 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
-int main() { return 0; }
-int t() {
+int main() {
 time_t i;
 ; return 0; }
 EOF
-if { (eval echo configure:1184: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1902: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   bu_cv_decl_time_t_types_h=yes
 else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
   rm -rf conftest*
   bu_cv_decl_time_t_types_h=no
 fi
 rm -f conftest*
-
 fi
 
 echo "$ac_t""$bu_cv_decl_time_t_types_h" 1>&6
@@ -1202,31 +1921,32 @@ fi
 # Under Next 3.2 <utime.h> apparently does not define struct utimbuf
 # by default.
 echo $ac_n "checking for utime.h""... $ac_c" 1>&6
+echo "configure:1925: checking for utime.h" >&5
 if eval "test \"`echo '$''{'bu_cv_header_utime_h'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1210 "configure"
+#line 1930 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #ifdef HAVE_TIME_H
 #include <time.h>
 #endif
 #include <utime.h>
-int main() { return 0; }
-int t() {
+int main() {
 struct utimbuf s;
 ; return 0; }
 EOF
-if { (eval echo configure:1222: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1941: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   bu_cv_header_utime_h=yes
 else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
   rm -rf conftest*
   bu_cv_header_utime_h=no
 fi
 rm -f conftest*
-
 fi
 
 echo "$ac_t""$bu_cv_header_utime_h" 1>&6
@@ -1238,34 +1958,42 @@ EOF
 fi
 
 echo $ac_n "checking whether fprintf must be declared""... $ac_c" 1>&6
+echo "configure:1962: checking whether fprintf must be declared" >&5
 if eval "test \"`echo '$''{'bfd_cv_decl_needed_fprintf'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1246 "configure"
+#line 1967 "configure"
 #include "confdefs.h"
 
 #include <stdio.h>
+#ifdef HAVE_STRING_H
+#include <string.h>
+#else
+#ifdef HAVE_STRINGS_H
+#include <strings.h>
+#endif
+#endif
 #ifdef HAVE_STDLIB_H
 #include <stdlib.h>
 #endif
 #ifdef HAVE_UNISTD_H
 #include <unistd.h>
 #endif
-int main() { return 0; }
-int t() {
+int main() {
 char *(*pfn) = (char *(*)) fprintf
 ; return 0; }
 EOF
-if { (eval echo configure:1261: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1988: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   bfd_cv_decl_needed_fprintf=no
 else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
   rm -rf conftest*
   bfd_cv_decl_needed_fprintf=yes
 fi
 rm -f conftest*
-
 fi
 
 echo "$ac_t""$bfd_cv_decl_needed_fprintf" 1>&6
@@ -1277,10 +2005,154 @@ EOF
 
 fi
 
+echo $ac_n "checking whether strstr must be declared""... $ac_c" 1>&6
+echo "configure:2010: checking whether strstr must be declared" >&5
+if eval "test \"`echo '$''{'bfd_cv_decl_needed_strstr'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  cat > conftest.$ac_ext <<EOF
+#line 2015 "configure"
+#include "confdefs.h"
+
+#include <stdio.h>
+#ifdef HAVE_STRING_H
+#include <string.h>
+#else
+#ifdef HAVE_STRINGS_H
+#include <strings.h>
+#endif
+#endif
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+int main() {
+char *(*pfn) = (char *(*)) strstr
+; return 0; }
+EOF
+if { (eval echo configure:2036: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+  rm -rf conftest*
+  bfd_cv_decl_needed_strstr=no
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  bfd_cv_decl_needed_strstr=yes
+fi
+rm -f conftest*
+fi
+
+echo "$ac_t""$bfd_cv_decl_needed_strstr" 1>&6
+if test $bfd_cv_decl_needed_strstr = yes; then
+  bfd_tr_decl=NEED_DECLARATION_`echo strstr | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
+  cat >> confdefs.h <<EOF
+#define $bfd_tr_decl 1
+EOF
+
+fi
+
+echo $ac_n "checking whether sbrk must be declared""... $ac_c" 1>&6
+echo "configure:2058: checking whether sbrk must be declared" >&5
+if eval "test \"`echo '$''{'bfd_cv_decl_needed_sbrk'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  cat > conftest.$ac_ext <<EOF
+#line 2063 "configure"
+#include "confdefs.h"
+
+#include <stdio.h>
+#ifdef HAVE_STRING_H
+#include <string.h>
+#else
+#ifdef HAVE_STRINGS_H
+#include <strings.h>
+#endif
+#endif
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+int main() {
+char *(*pfn) = (char *(*)) sbrk
+; return 0; }
+EOF
+if { (eval echo configure:2084: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+  rm -rf conftest*
+  bfd_cv_decl_needed_sbrk=no
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  bfd_cv_decl_needed_sbrk=yes
+fi
+rm -f conftest*
+fi
+
+echo "$ac_t""$bfd_cv_decl_needed_sbrk" 1>&6
+if test $bfd_cv_decl_needed_sbrk = yes; then
+  bfd_tr_decl=NEED_DECLARATION_`echo sbrk | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
+  cat >> confdefs.h <<EOF
+#define $bfd_tr_decl 1
+EOF
+
+fi
+
+echo $ac_n "checking whether getenv must be declared""... $ac_c" 1>&6
+echo "configure:2106: checking whether getenv must be declared" >&5
+if eval "test \"`echo '$''{'bfd_cv_decl_needed_getenv'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  cat > conftest.$ac_ext <<EOF
+#line 2111 "configure"
+#include "confdefs.h"
+
+#include <stdio.h>
+#ifdef HAVE_STRING_H
+#include <string.h>
+#else
+#ifdef HAVE_STRINGS_H
+#include <strings.h>
+#endif
+#endif
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+int main() {
+char *(*pfn) = (char *(*)) getenv
+; return 0; }
+EOF
+if { (eval echo configure:2132: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+  rm -rf conftest*
+  bfd_cv_decl_needed_getenv=no
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  bfd_cv_decl_needed_getenv=yes
+fi
+rm -f conftest*
+fi
+
+echo "$ac_t""$bfd_cv_decl_needed_getenv" 1>&6
+if test $bfd_cv_decl_needed_getenv = yes; then
+  bfd_tr_decl=NEED_DECLARATION_`echo getenv | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
+  cat >> confdefs.h <<EOF
+#define $bfd_tr_decl 1
+EOF
+
+fi
+
 
 
 case "${host}" in
-i[345]86-*-msdos* | i[345]86-*-go32* | *-*-cygwin32)
+i[345]86-*-msdos* | i[345]86-*-go32* | *-*-cygwin32 | *-*-windows)
   cat >> confdefs.h <<\EOF
 #define USE_BINARY_FOPEN 1
 EOF
@@ -1319,7 +2191,7 @@ do
 	NLMCONV_DEFS="-DNLMCONV_I386 -DNLMCONV_ALPHA -DNLMCONV_POWERPC -DNLMCONV_SPARC"
     else
 	case $targ in
-	i[345]86*-*-netware*) 
+	i[3456]86*-*-netware*) 
 	  BUILD_NLMCONV='$(NLMCONV_PROG)'
 	  NLMCONV_DEFS="$NLMCONV_DEFS -DNLMCONV_I386"
 	  ;;
@@ -1388,11 +2260,25 @@ cat > confcache <<\EOF
 # --recheck option to rerun configure.
 #
 EOF
+# The following way of writing the cache mishandles newlines in values,
+# but we know of no workaround that is simple, portable, and efficient.
+# So, don't put newlines in cache variables' values.
 # Ultrix sh set writes to stderr and can't be redirected directly,
 # and sets the high bit in the cache file unless we assign to the vars.
 (set) 2>&1 |
-  sed -n "s/^\([a-zA-Z0-9_]*_cv_[a-zA-Z0-9_]*\)=\(.*\)/\1=\${\1='\2'}/p" \
-  >> confcache
+  case `(ac_space=' '; set) 2>&1` in
+  *ac_space=\ *)
+    # `set' does not quote correctly, so add quotes (double-quote substitution
+    # turns \\\\ into \\, and sed turns \\ into \).
+    sed -n \
+      -e "s/'/'\\\\''/g" \
+      -e "s/^\\([a-zA-Z0-9_]*_cv_[a-zA-Z0-9_]*\\)=\\(.*\\)/\\1=\${\\1='\\2'}/p"
+    ;;
+  *)
+    # `set' quotes correctly as required by POSIX, so do not add quotes.
+    sed -n -e 's/^\([a-zA-Z0-9_]*_cv_[a-zA-Z0-9_]*\)=\(.*\)/\1=${\1=\2}/p'
+    ;;
+  esac >> confcache
 if cmp -s $cache_file confcache; then
   :
 else
@@ -1447,7 +2333,7 @@ do
     echo "running \${CONFIG_SHELL-/bin/sh} $0 $ac_configure_args --no-create --no-recursion"
     exec \${CONFIG_SHELL-/bin/sh} $0 $ac_configure_args --no-create --no-recursion ;;
   -version | --version | --versio | --versi | --vers | --ver | --ve | --v)
-    echo "$CONFIG_STATUS generated by autoconf version 2.8"
+    echo "$CONFIG_STATUS generated by autoconf version 2.12"
     exit 0 ;;
   -help | --help | --hel | --he | --h)
     echo "\$ac_cs_usage"; exit 0 ;;
@@ -1506,6 +2392,7 @@ s%@build_os@%$build_os%g
 s%@CC@%$CC%g
 s%@HDEFINES@%$HDEFINES%g
 s%@HLDFLAGS@%$HLDFLAGS%g
+s%@HLDENV@%$HLDENV%g
 s%@RPATH_ENVVAR@%$RPATH_ENVVAR%g
 s%@AR@%$AR%g
 s%@RANLIB@%$RANLIB%g
@@ -1515,6 +2402,7 @@ s%@BFDLIB@%$BFDLIB%g
 s%@OPCODES@%$OPCODES%g
 s%@CC_FOR_BUILD@%$CC_FOR_BUILD%g
 s%@CPP@%$CPP%g
+s%@ALLOCA@%$ALLOCA%g
 s%@NLMCONV_DEFS@%$NLMCONV_DEFS%g
 s%@BUILD_NLMCONV@%$BUILD_NLMCONV%g
 s%@BUILD_SRCONV@%$BUILD_SRCONV%g
@@ -1524,20 +2412,56 @@ s%@UNDERSCORE@%$UNDERSCORE%g
 
 CEOF
 EOF
+
+cat >> $CONFIG_STATUS <<\EOF
+
+# Split the substitutions into bite-sized pieces for seds with
+# small command number limits, like on Digital OSF/1 and HP-UX.
+ac_max_sed_cmds=90 # Maximum number of lines to put in a sed script.
+ac_file=1 # Number of current file.
+ac_beg=1 # First line for current file.
+ac_end=$ac_max_sed_cmds # Line after last line for current file.
+ac_more_lines=:
+ac_sed_cmds=""
+while $ac_more_lines; do
+  if test $ac_beg -gt 1; then
+    sed "1,${ac_beg}d; ${ac_end}q" conftest.subs > conftest.s$ac_file
+  else
+    sed "${ac_end}q" conftest.subs > conftest.s$ac_file
+  fi
+  if test ! -s conftest.s$ac_file; then
+    ac_more_lines=false
+    rm -f conftest.s$ac_file
+  else
+    if test -z "$ac_sed_cmds"; then
+      ac_sed_cmds="sed -f conftest.s$ac_file"
+    else
+      ac_sed_cmds="$ac_sed_cmds | sed -f conftest.s$ac_file"
+    fi
+    ac_file=`expr $ac_file + 1`
+    ac_beg=$ac_end
+    ac_end=`expr $ac_end + $ac_max_sed_cmds`
+  fi
+done
+if test -z "$ac_sed_cmds"; then
+  ac_sed_cmds=cat
+fi
+EOF
+
 cat >> $CONFIG_STATUS <<EOF
 
 CONFIG_FILES=\${CONFIG_FILES-"Makefile"}
 EOF
 cat >> $CONFIG_STATUS <<\EOF
 for ac_file in .. $CONFIG_FILES; do if test "x$ac_file" != x..; then
-  # Support "outfile[:infile]", defaulting infile="outfile.in".
+  # Support "outfile[:infile[:infile...]]", defaulting infile="outfile.in".
   case "$ac_file" in
-  *:*) ac_file_in=`echo "$ac_file"|sed 's%.*:%%'`
+  *:*) ac_file_in=`echo "$ac_file"|sed 's%[^:]*:%%'`
        ac_file=`echo "$ac_file"|sed 's%:.*%%'` ;;
   *) ac_file_in="${ac_file}.in" ;;
   esac
 
-  # Adjust relative srcdir, etc. for subdirectories.
+  # Adjust a relative srcdir, top_srcdir, and INSTALL for subdirectories.
 
   # Remove last slash and all that follows it.  Not all systems have dirname.
   ac_dir=`echo $ac_file|sed 's%/[^/][^/]*$%%'`
@@ -1565,6 +2489,7 @@ for ac_file in .. $CONFIG_FILES; do if test "x$ac_file" != x..; then
   [/$]*) INSTALL="$ac_given_INSTALL" ;;
   *) INSTALL="$ac_dots$ac_given_INSTALL" ;;
   esac
+
   echo creating "$ac_file"
   rm -f "$ac_file"
   configure_input="Generated automatically from `echo $ac_file_in|sed 's%.*/%%'` by configure."
@@ -1573,14 +2498,16 @@ for ac_file in .. $CONFIG_FILES; do if test "x$ac_file" != x..; then
 # $configure_input" ;;
   *) ac_comsub= ;;
   esac
+
+  ac_file_inputs=`echo $ac_file_in|sed -e "s%^%$ac_given_srcdir/%" -e "s%:% $ac_given_srcdir/%g"`
   sed -e "$ac_comsub
 s%@configure_input@%$configure_input%g
 s%@srcdir@%$srcdir%g
 s%@top_srcdir@%$top_srcdir%g
 s%@INSTALL@%$INSTALL%g
-" -f conftest.subs $ac_given_srcdir/$ac_file_in > $ac_file
+" $ac_file_inputs | (eval "$ac_sed_cmds") > $ac_file
 fi; done
-rm -f conftest.subs
+rm -f conftest.s*
 
 # These sed commands are passed to sed as "A NAME B NAME C VALUE D", where
 # NAME is the cpp macro being defined and VALUE is the value it is being given.
@@ -1601,11 +2528,17 @@ ac_eB='$%\1#\2define\3'
 ac_eC=' '
 ac_eD='%g'
 
-CONFIG_HEADERS=${CONFIG_HEADERS-"config.h:config.in"}
+if test "${CONFIG_HEADERS+set}" != set; then
+EOF
+cat >> $CONFIG_STATUS <<EOF
+  CONFIG_HEADERS="config.h:config.in"
+EOF
+cat >> $CONFIG_STATUS <<\EOF
+fi
 for ac_file in .. $CONFIG_HEADERS; do if test "x$ac_file" != x..; then
-  # Support "outfile[:infile]", defaulting infile="outfile.in".
+  # Support "outfile[:infile[:infile...]]", defaulting infile="outfile.in".
   case "$ac_file" in
-  *:*) ac_file_in=`echo "$ac_file"|sed 's%.*:%%'`
+  *:*) ac_file_in=`echo "$ac_file"|sed 's%[^:]*:%%'`
        ac_file=`echo "$ac_file"|sed 's%:.*%%'` ;;
   *) ac_file_in="${ac_file}.in" ;;
   esac
@@ -1613,7 +2546,8 @@ for ac_file in .. $CONFIG_HEADERS; do if test "x$ac_file" != x..; then
   echo creating $ac_file
 
   rm -f conftest.frag conftest.in conftest.out
-  cp $ac_given_srcdir/$ac_file_in conftest.in
+  ac_file_inputs=`echo $ac_file_in|sed -e "s%^%$ac_given_srcdir/%" -e "s%:% $ac_given_srcdir/%g"`
+  cat $ac_file_inputs > conftest.in
 
 EOF
 
@@ -1625,7 +2559,7 @@ rm -f conftest.vals
 cat > conftest.hdr <<\EOF
 s/[\\&%]/\\&/g
 s%[\\$`]%\\&%g
-s%#define \([A-Za-z_][A-Za-z0-9_]*\) \(.*\)%${ac_dA}\1${ac_dB}\1${ac_dC}\2${ac_dD}%gp
+s%#define \([A-Za-z_][A-Za-z0-9_]*\) *\(.*\)%${ac_dA}\1${ac_dB}\1${ac_dC}\2${ac_dD}%gp
 s%ac_d%ac_u%gp
 s%ac_u%ac_e%gp
 EOF
@@ -1641,8 +2575,6 @@ EOF
 
 # Break up conftest.vals because some shells have a limit on
 # the size of here documents, and old seds have small limits too.
-# Maximum number of lines to put in a single here document.
-ac_max_here_lines=12
 
 rm -f conftest.tail
 while :
@@ -1673,12 +2605,22 @@ cat >> $CONFIG_STATUS <<\EOF
     echo "$ac_file is unchanged"
     rm -f conftest.h
   else
+    # Remove last slash and all that follows it.  Not all systems have dirname.
+      ac_dir=`echo $ac_file|sed 's%/[^/][^/]*$%%'`
+      if test "$ac_dir" != "$ac_file" && test "$ac_dir" != .; then
+      # The file is in a subdirectory.
+      test ! -d "$ac_dir" && mkdir "$ac_dir"
+    fi
     rm -f $ac_file
     mv conftest.h $ac_file
   fi
 fi; done
 
+EOF
+cat >> $CONFIG_STATUS <<EOF
 
+EOF
+cat >> $CONFIG_STATUS <<\EOF
 case x$CONFIG_HEADERS in xconfig.h:config.in) echo > stamp-h ;; esac
 exit 0
 EOF
diff --git a/binutils/configure.in b/binutils/configure.in
index 18e930e..f5ce9d6 100644
--- a/binutils/configure.in
+++ b/binutils/configure.in
@@ -1,6 +1,6 @@
 dnl Process this file with autoconf to produce a configure script.
 dnl
-AC_PREREQ(2.0)
+AC_PREREQ(2.5)
 AC_INIT(ar.c)
 
 AC_ARG_ENABLE(targets,
@@ -14,9 +14,20 @@ esac])dnl
 AC_ARG_ENABLE(shared,
 [  --enable-shared         build shared BFD library],
 [case "${enableval}" in
-  yes) shared=true ;;
+  yes) shared=true shared_bfd=true shared_opcodes=true ;;
   no)  shared=false ;;
-  *)   AC_MSG_ERROR([bad value ${enableval} for BFD shared option]) ;;
+  *bfd*opcodes*) shared=true shared_bfd=true shared_opcodes=true ;;
+  *opcodes*bfd*) shared=true shared_bfd=true shared_opcodes=true ;;
+  *bfd*) shared=true shared_bfd=true ;;
+  *opcodes*) shared=true shared_opcodes=true ;;
+  *) shared=false ;;
+esac])dnl
+AC_ARG_ENABLE(commonbfdlib,
+[  --enable-commonbfdlib   build shared BFD/opcodes/libiberty library],
+[case "${enableval}" in
+  yes) commonbfdlib=true ;;
+  no)  commonbfdlib=false ;;
+  *)   AC_MSG_ERROR([bad value ${enableval} for BFD commonbfdlib option]) ;;
 esac])dnl
 
 AC_CONFIG_HEADER(config.h:config.in)
@@ -34,17 +45,17 @@ AC_ARG_PROGRAM
 # host-specific stuff:
 
 HDEFINES=
-LDFLAGS=
 HLDFLAGS=
+HLDENV=
 RPATH_ENVVAR=LD_LIBRARY_PATH
 
+AC_PROG_CC
+
 . ${srcdir}/../bfd/configure.host
 
-AC_PROG_CC
-AC_SUBST(CFLAGS)
 AC_SUBST(HDEFINES)
-AC_SUBST(LDFLAGS)
 AC_SUBST(HLDFLAGS)
+AC_SUBST(HLDENV)
 AC_SUBST(RPATH_ENVVAR)
 AR=${AR-ar}
 AC_SUBST(AR)
@@ -56,16 +67,41 @@ AC_PROG_INSTALL
 # need to handle some hosts specially.
 BFDLIB='-L../bfd -lbfd'
 OPCODES='-L../opcodes -lopcodes'
-if test "${shared}" = "true"; then
-  case "${host}" in
-  *-*-sunos*)
-    # On SunOS, we must link against the name we are going to install,
-    # not -lbfd, since SunOS does not support SONAME.
+
+case "${host}" in
+*-*-sunos*)
+  # On SunOS, we must link against the name we are going to install,
+  # not -lbfd, since SunOS does not support SONAME.
+  if test "${shared_bfd}" = "true"; then
     BFDLIB='-L../bfd -l`echo bfd | sed '"'"'$(program_transform_name)'"'"'`'
+  fi
+  if test "${shared_opcodes}" = "true"; then
     OPCODES='-L../opcodes -l`echo opcodes | sed '"'"'$(program_transform_name)'"'"'`'
-    ;;
-  esac
+  fi
+  ;;
+alpha*-*-osf*)
+  # On Alpha OSF/1, the native linker searches all the -L
+  # directories for any LIB.so files, and only then searches for any
+  # LIB.a files.  That means that if there is an installed
+  # libbfd.so, but this build is not done with --enable-shared, the
+  # link will wind up being against the install libbfd.so rather
+  # than the newly built libbfd.  To avoid this, we must explicitly
+  # link against libbfd.a when --enable-shared is not used.
+  if test "${shared_bfd}" != "true"; then
+    BFDLIB='../bfd/libbfd.a'
+  fi
+  if test "${shared_opcodes}" != "true"; then
+    OPCODES='../opcodes/libopcodes.a'
+  fi
+  ;;
+esac
+
+if test "${commonbfdlib}" = "true"; then
+  # when a shared libbfd is built with --enable-commonbfdlib,
+  # all of libopcodes is available in libbfd.so
+  OPCODES=
 fi
+
 AC_SUBST(BFDLIB)
 AC_SUBST(OPCODES)
 
@@ -73,7 +109,15 @@ BFD_CC_FOR_BUILD
 
 AC_CHECK_HEADERS(string.h strings.h stdlib.h unistd.h fcntl.h sys/file.h)
 AC_HEADER_SYS_WAIT
+AC_FUNC_ALLOCA
 AC_CHECK_FUNCS(sbrk utimes)
+dnl Temporary workaround for bug in autoconf 2.12.  When the bug is
+dnl fixed, we can just call AC_FUNC_VFORK in all cases.
+if test "x$cross_compiling" = "xno"; then
+  AC_FUNC_VFORK
+else
+  AC_CHECK_FUNC(vfork, , AC_DEFINE(vfork, fork))
+fi
 
 AC_MSG_CHECKING(for time_t in time.h)
 AC_CACHE_VAL(bu_cv_decl_time_t_time_h,
@@ -110,6 +154,9 @@ if test $bu_cv_header_utime_h = yes; then
 fi
 
 BFD_NEED_DECLARATION(fprintf)
+BFD_NEED_DECLARATION(strstr)
+BFD_NEED_DECLARATION(sbrk)
+BFD_NEED_DECLARATION(getenv)
 
 BFD_BINARY_FOPEN
 
@@ -146,7 +193,7 @@ do
     else
 	case $targ in
 changequote(,)dnl
-	i[345]86*-*-netware*) 
+	i[3456]86*-*-netware*) 
 changequote([,])dnl
 	  BUILD_NLMCONV='$(NLMCONV_PROG)'
 	  NLMCONV_DEFS="$NLMCONV_DEFS -DNLMCONV_I386"