* aclocal.m4 (gcc_AC_CHECK_PROG_VER): New macro.

	* configure.in: Look for makeinfo in the unified tree, then
	for a system makeinfo which is sufficiently new.
	* Makefile.in: If configure says makeinfo is too old, don't
	build or install Info documentation.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@33614 138bc75d-0d04-0410-961f-82ee72b054a4

5 files changed, 289 insertions, 153 deletions

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 020031c0796..e1637e28da9 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,13 @@
 2000-05-02  Zack Weinberg  <zack@wolery.cumb.org>
 
+	* aclocal.m4 (gcc_AC_CHECK_PROG_VER): New macro.
+	* configure.in: Look for makeinfo in the unified tree, then
+	for a system makeinfo which is sufficiently new.
+	* Makefile.in: If configure says makeinfo is too old, don't
+	build or install Info documentation.
+
+2000-05-02  Zack Weinberg  <zack@wolery.cumb.org>
+
 	* cpphash.c (collect_params): Fix off-by-one error.
 	(dump_hash_helper): Dump all four macro nodetypes.
 
diff --git a/gcc/Makefile.in b/gcc/Makefile.in
index 20d10aac09a..197cc7f281a 100644
--- a/gcc/Makefile.in
+++ b/gcc/Makefile.in
@@ -108,9 +108,7 @@ LN_S=@LN_S@
 # These permit overriding just for certain files.
 INSTALL_PROGRAM = @INSTALL_PROGRAM@
 INSTALL_DATA = @INSTALL_DATA@
-MAKEINFO = `if [ -f $(objdir)/../texinfo/makeinfo/Makefile ] ; \
-	then echo $(objdir)/../texinfo/makeinfo/makeinfo ; \
-	else echo makeinfo ; fi`
+MAKEINFO = @MAKEINFO@
 MAKEINFOFLAGS =
 TEXI2DVI = texi2dvi
 # For GNUmake: let us decide what gets passed to recursive makes.
@@ -425,6 +423,10 @@ LIBCONVERT =
 # Control whether header files are installed.
 INSTALL_HEADERS=install-headers
 
+# Control whether Info documentation is built and installed.
+BUILD_INFO = @BUILD_INFO@
+INSTALL_INFO = @INSTALL_INFO@
+
 # Additional directories of header files to run fixincludes on.
 # These should be directories searched automatically by default
 # just as /usr/include is.
@@ -2313,7 +2315,7 @@ stmp-fixproto: fixhdr.ready fixproto stmp-int-hdrs
 #
 # Remake the info files.
 
-doc: info gccbug
+doc: $(BUILD_INFO) gccbug
 info: cpp.info gcc.info lang.info
 
 cpp.info: $(srcdir)/cpp.texi
@@ -2473,8 +2475,8 @@ install: $(INSTALL_TARGET) ; @true
 # Install the driver last so that the window when things are
 # broken is small.
 install-normal: install-common $(INSTALL_HEADERS) $(INSTALL_LIBGCC) \
-    $(INSTALL_CPP) install-man install-info intl.install lang.install-normal \
-    install-driver
+    $(INSTALL_CPP) install-man $(INSTALL_INFO) intl.install \
+    lang.install-normal install-driver
 
 # Do nothing while making gcc with a cross-compiler. The person who
 # makes gcc for the target machine has to know how to put a complete
diff --git a/gcc/aclocal.m4 b/gcc/aclocal.m4
index 6e8e7556f18..ddfc65131f6 100644
--- a/gcc/aclocal.m4
+++ b/gcc/aclocal.m4
@@ -798,3 +798,28 @@ if test $ac_cv_func_mmap_file = yes; then
 	    [Define if read-only mmap of a plain file works.])
 fi
 ])
+
+dnl Locate a program and check that its version is acceptable.
+dnl AC_PROG_CHECK_VER(var, name, version-switch,
+dnl                  version-extract-regexp, version-glob)
+AC_DEFUN(gcc_AC_CHECK_PROG_VER,
+[AC_CHECK_PROG([$1], [$2], [$2])
+if test -n "[$]$1"; then
+  # Found it, now check the version.
+  AC_CACHE_CHECK(for modern $2, gcc_cv_prog_$2_modern,
+[changequote(<<,>>)dnl
+  ac_prog_version=`<<$>>$1 $3 2>&1 |
+                   sed -n 's/^.*patsubst(<<$4>>,/,\/).*$/\1/p'`
+  echo "configure:__oline__: version of $2 is $ac_prog_version" >&AC_FD_CC
+  case $ac_prog_version in
+    '')     gcc_cv_prog_$2_modern=no;;
+    <<$5>>)
+            gcc_cv_prog_$2_modern=yes;;
+    *)      gcc_cv_prog_$2_modern=no;;
+  esac
+changequote([,])dnl
+])
+else
+  gcc_cv_prog_$2_modern=no
+fi
+])
diff --git a/gcc/configure b/gcc/configure
index 9b4169465f9..9f18fbcea08 100755
--- a/gcc/configure
+++ b/gcc/configure
@@ -1354,7 +1354,7 @@ else
 fi
 
 # Find some useful tools
-for ac_prog in gawk mawk nawk awk
+for ac_prog in mawk gawk nawk awk
 do
 # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
@@ -2130,17 +2130,91 @@ else
 fi
 
 
+# Do we have a single-tree copy of texinfo?
+if test -f $srcdir/../texinfo/Makefile.in; then
+  MAKEINFO='$(objdir)/../texinfo/makeinfo/makeinfo'
+  gcc_cv_prog_makeinfo_modern=yes
+  echo "$ac_t""Using makeinfo from the unified source tree." 1>&6
+else
+  # See if makeinfo has been installed and is modern enough
+  # that we can use it.
+  # Extract the first word of "makeinfo", so it can be a program name with args.
+set dummy makeinfo; ac_word=$2
+echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
+echo "configure:2145: checking for $ac_word" >&5
+if eval "test \"`echo '$''{'ac_cv_prog_MAKEINFO'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  if test -n "$MAKEINFO"; then
+  ac_cv_prog_MAKEINFO="$MAKEINFO" # Let the user override the test.
+else
+  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS=":"
+  ac_dummy="$PATH"
+  for ac_dir in $ac_dummy; do
+    test -z "$ac_dir" && ac_dir=.
+    if test -f $ac_dir/$ac_word; then
+      ac_cv_prog_MAKEINFO="makeinfo"
+      break
+    fi
+  done
+  IFS="$ac_save_ifs"
+fi
+fi
+MAKEINFO="$ac_cv_prog_MAKEINFO"
+if test -n "$MAKEINFO"; then
+  echo "$ac_t""$MAKEINFO" 1>&6
+else
+  echo "$ac_t""no" 1>&6
+fi
+
+if test -n "$MAKEINFO"; then
+  # Found it, now check the version.
+  echo $ac_n "checking for modern makeinfo""... $ac_c" 1>&6
+echo "configure:2174: checking for modern makeinfo" >&5
+if eval "test \"`echo '$''{'gcc_cv_prog_makeinfo_modern'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+    ac_prog_version=`$MAKEINFO --version 2>&1 |
+                   sed -n 's/^.*GNU texinfo.* \([0-9][0-9.]*\).*$/\1/p'`
+  echo "configure:2180: version of makeinfo is $ac_prog_version" >&5
+  case $ac_prog_version in
+    '')     gcc_cv_prog_makeinfo_modern=no;;
+    3.1[2-9] | 3.[2-9][0-9] | 4.* | 1.6[89] | 1.7[0-9])
+            gcc_cv_prog_makeinfo_modern=yes;;
+    *)      gcc_cv_prog_makeinfo_modern=no;;
+  esac
+
+fi
+
+echo "$ac_t""$gcc_cv_prog_makeinfo_modern" 1>&6
+else
+  gcc_cv_prog_makeinfo_modern=no
+fi
+
+fi
+
+if test $gcc_cv_prog_makeinfo_modern = no; then
+  echo "configure: warning: 
+*** Makeinfo is missing or too old.
+*** Info documentation will not be built or installed." 1>&2
+  BUILD_INFO=
+  INSTALL_INFO=
+else
+  BUILD_INFO=info		
+  INSTALL_INFO=install-info	
+fi
+
 # See if the stage1 system preprocessor understands the ANSI C
 # preprocessor stringification operator.
 
 
 echo $ac_n "checking for preprocessor stringizing operator""... $ac_c" 1>&6
-echo "configure:2139: checking for preprocessor stringizing operator" >&5
+echo "configure:2213: checking for preprocessor stringizing operator" >&5
 if eval "test \"`echo '$''{'ac_cv_c_stringize'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2144 "configure"
+#line 2218 "configure"
 #include "confdefs.h"
 
 #define x(y) #y
@@ -2173,12 +2247,12 @@ echo "$ac_t""${ac_cv_c_stringize}" 1>&6
 # Use <inttypes.h> only if it exists,
 # doesn't clash with <sys/types.h>, and declares intmax_t.
 echo $ac_n "checking for inttypes.h""... $ac_c" 1>&6
-echo "configure:2177: checking for inttypes.h" >&5
+echo "configure:2251: checking for inttypes.h" >&5
 if eval "test \"`echo '$''{'gcc_cv_header_inttypes_h'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2182 "configure"
+#line 2256 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <inttypes.h>
@@ -2186,7 +2260,7 @@ int main() {
 intmax_t i = -1;
 ; return 0; }
 EOF
-if { (eval echo configure:2190: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:2264: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   gcc_cv_header_inttypes_h=yes
 else
@@ -2211,7 +2285,7 @@ fi
 # be either signed or unsigned.
 #
 echo $ac_n "checking for unsigned enumerated bitfields""... $ac_c" 1>&6
-echo "configure:2215: checking for unsigned enumerated bitfields" >&5
+echo "configure:2289: checking for unsigned enumerated bitfields" >&5
 if eval "test \"`echo '$''{'gcc_cv_enum_bf_unsigned'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2219,7 +2293,7 @@ else
   gcc_cv_enum_bf_unsigned=yes
 else
   cat > conftest.$ac_ext <<EOF
-#line 2223 "configure"
+#line 2297 "configure"
 #include "confdefs.h"
 #include <stdlib.h>
 enum t { BLAH = 128 } ;
@@ -2232,7 +2306,7 @@ int main(void)
 
 }
 EOF
-if { (eval echo configure:2236: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:2310: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   gcc_cv_enum_bf_unsigned=yes
 else
@@ -2260,12 +2334,12 @@ for ac_func in strtoul bsearch putenv popen bcopy bzero bcmp \
 	fputs_unlocked getrusage valloc
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:2264: checking for $ac_func" >&5
+echo "configure:2338: 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 2269 "configure"
+#line 2343 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -2288,7 +2362,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:2292: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2366: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -2317,12 +2391,12 @@ done
 #AC_CHECK_TYPE(wchar_t, unsigned int)
 
 echo $ac_n "checking for vprintf""... $ac_c" 1>&6
-echo "configure:2321: checking for vprintf" >&5
+echo "configure:2395: checking for vprintf" >&5
 if eval "test \"`echo '$''{'ac_cv_func_vprintf'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2326 "configure"
+#line 2400 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char vprintf(); below.  */
@@ -2345,7 +2419,7 @@ vprintf();
 
 ; return 0; }
 EOF
-if { (eval echo configure:2349: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2423: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_vprintf=yes"
 else
@@ -2369,12 +2443,12 @@ fi
 
 if test "$ac_cv_func_vprintf" != yes; then
 echo $ac_n "checking for _doprnt""... $ac_c" 1>&6
-echo "configure:2373: checking for _doprnt" >&5
+echo "configure:2447: checking for _doprnt" >&5
 if eval "test \"`echo '$''{'ac_cv_func__doprnt'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2378 "configure"
+#line 2452 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char _doprnt(); below.  */
@@ -2397,7 +2471,7 @@ _doprnt();
 
 ; return 0; }
 EOF
-if { (eval echo configure:2401: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2475: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func__doprnt=yes"
 else
@@ -2433,7 +2507,7 @@ fi
 
 
 echo $ac_n "checking whether the printf functions support %p""... $ac_c" 1>&6
-echo "configure:2437: checking whether the printf functions support %p" >&5
+echo "configure:2511: checking whether the printf functions support %p" >&5
 if eval "test \"`echo '$''{'gcc_cv_func_printf_ptr'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2441,7 +2515,7 @@ else
   gcc_cv_func_printf_ptr=no
 else
   cat > conftest.$ac_ext <<EOF
-#line 2445 "configure"
+#line 2519 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 
@@ -2454,7 +2528,7 @@ int main()
   return (p != q);
 }
 EOF
-if { (eval echo configure:2458: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:2532: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   gcc_cv_func_printf_ptr=yes
 else
@@ -2487,12 +2561,12 @@ case "${host}" in
   ;;
 esac
 echo $ac_n "checking for pid_t""... $ac_c" 1>&6
-echo "configure:2491: checking for pid_t" >&5
+echo "configure:2565: checking for pid_t" >&5
 if eval "test \"`echo '$''{'ac_cv_type_pid_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2496 "configure"
+#line 2570 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #if STDC_HEADERS
@@ -2521,17 +2595,17 @@ fi
 
 ac_safe=`echo "vfork.h" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for vfork.h""... $ac_c" 1>&6
-echo "configure:2525: checking for vfork.h" >&5
+echo "configure:2599: checking for vfork.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2530 "configure"
+#line 2604 "configure"
 #include "confdefs.h"
 #include <vfork.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:2535: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:2609: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -2556,18 +2630,18 @@ else
 fi
 
 echo $ac_n "checking for working vfork""... $ac_c" 1>&6
-echo "configure:2560: checking for working vfork" >&5
+echo "configure:2634: checking for working vfork" >&5
 if eval "test \"`echo '$''{'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""... $ac_c" 1>&6
-echo "configure:2566: checking for vfork" >&5
+echo "configure:2640: checking for vfork" >&5
 if eval "test \"`echo '$''{'ac_cv_func_vfork'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2571 "configure"
+#line 2645 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char vfork(); below.  */
@@ -2590,7 +2664,7 @@ vfork();
 
 ; return 0; }
 EOF
-if { (eval echo configure:2594: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2668: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_vfork=yes"
 else
@@ -2612,7 +2686,7 @@ fi
 ac_cv_func_vfork_works=$ac_cv_func_vfork
 else
   cat > conftest.$ac_ext <<EOF
-#line 2616 "configure"
+#line 2690 "configure"
 #include "confdefs.h"
 /* Thanks to Paul Eggert for this test.  */
 #include <stdio.h>
@@ -2707,7 +2781,7 @@ main() {
   }
 }
 EOF
-if { (eval echo configure:2711: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:2785: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_func_vfork_works=yes
 else
@@ -2733,17 +2807,17 @@ for ac_hdr in unistd.h
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:2737: checking for $ac_hdr" >&5
+echo "configure:2811: 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 2742 "configure"
+#line 2816 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:2747: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:2821: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -2772,12 +2846,12 @@ done
 for ac_func in getpagesize
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:2776: checking for $ac_func" >&5
+echo "configure:2850: 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 2781 "configure"
+#line 2855 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -2800,7 +2874,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:2804: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2878: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -2825,7 +2899,7 @@ fi
 done
 
 echo $ac_n "checking for working mmap from /dev/zero""... $ac_c" 1>&6
-echo "configure:2829: checking for working mmap from /dev/zero" >&5
+echo "configure:2903: checking for working mmap from /dev/zero" >&5
 if eval "test \"`echo '$''{'ac_cv_func_mmap_anywhere'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2833,7 +2907,7 @@ else
   ac_cv_func_mmap_anywhere=no
 else
   cat > conftest.$ac_ext <<EOF
-#line 2837 "configure"
+#line 2911 "configure"
 #include "confdefs.h"
 
 /* Test by Richard Henderson and Alexandre Oliva.
@@ -2905,7 +2979,7 @@ int main()
   exit(0);
 }
 EOF
-if { (eval echo configure:2909: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:2983: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_func_mmap_anywhere=yes
 else
@@ -2928,7 +3002,7 @@ EOF
 fi
 
 echo $ac_n "checking for working mmap of a file""... $ac_c" 1>&6
-echo "configure:2932: checking for working mmap of a file" >&5
+echo "configure:3006: checking for working mmap of a file" >&5
 if eval "test \"`echo '$''{'ac_cv_func_mmap_file'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2943,7 +3017,7 @@ if test "$cross_compiling" = yes; then
   ac_cv_func_mmap_file=no
 else
   cat > conftest.$ac_ext <<EOF
-#line 2947 "configure"
+#line 3021 "configure"
 #include "confdefs.h"
 
 /* Test by Zack Weinberg.  Modified from MMAP_ANYWHERE test by
@@ -2980,7 +3054,7 @@ int main()
   exit(0);
 }
 EOF
-if { (eval echo configure:2984: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:3058: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_func_mmap_file=yes
 else
@@ -3012,12 +3086,12 @@ for ac_func in bcopy bzero bcmp \
 	malloc realloc calloc free
 do
 echo $ac_n "checking whether $ac_func must be declared""... $ac_c" 1>&6
-echo "configure:3016: checking whether $ac_func must be declared" >&5
+echo "configure:3090: checking whether $ac_func must be declared" >&5
 if eval "test \"`echo '$''{'gcc_cv_decl_needed_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3021 "configure"
+#line 3095 "configure"
 #include "confdefs.h"
 
 #include "gansidecl.h"
@@ -3028,7 +3102,7 @@ char *(*pfn) = (char *(*)) $ac_func ;
 #endif
 ; return 0; }
 EOF
-if { (eval echo configure:3032: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3106: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   eval "gcc_cv_decl_needed_$ac_func=no"
 else
@@ -3124,12 +3198,12 @@ fi
 for ac_func in getrlimit setrlimit getrusage
 do
 echo $ac_n "checking whether $ac_func must be declared""... $ac_c" 1>&6
-echo "configure:3128: checking whether $ac_func must be declared" >&5
+echo "configure:3202: checking whether $ac_func must be declared" >&5
 if eval "test \"`echo '$''{'gcc_cv_decl_needed_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3133 "configure"
+#line 3207 "configure"
 #include "confdefs.h"
 
 #include "gansidecl.h"
@@ -3144,7 +3218,7 @@ char *(*pfn) = (char *(*)) $ac_func ;
 #endif
 ; return 0; }
 EOF
-if { (eval echo configure:3148: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3222: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   eval "gcc_cv_decl_needed_$ac_func=no"
 else
@@ -3185,12 +3259,12 @@ CFLAGS="$saved_CFLAGS"
 
 # mkdir takes a single argument on some systems. 
 echo $ac_n "checking if mkdir takes one argument""... $ac_c" 1>&6
-echo "configure:3189: checking if mkdir takes one argument" >&5
+echo "configure:3263: checking if mkdir takes one argument" >&5
 if eval "test \"`echo '$''{'gcc_cv_mkdir_takes_one_arg'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3194 "configure"
+#line 3268 "configure"
 #include "confdefs.h"
 
 #include <sys/types.h>
@@ -3207,7 +3281,7 @@ int main() {
 mkdir ("foo", 0);
 ; return 0; }
 EOF
-if { (eval echo configure:3211: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:3285: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   gcc_cv_mkdir_takes_one_arg=no
 else
@@ -6651,7 +6725,7 @@ fi
 
 
         echo $ac_n "checking for strerror in -lcposix""... $ac_c" 1>&6
-echo "configure:6655: checking for strerror in -lcposix" >&5
+echo "configure:6729: checking for strerror in -lcposix" >&5
 ac_lib_var=`echo cposix'_'strerror | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -6659,7 +6733,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lcposix  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 6663 "configure"
+#line 6737 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -6670,7 +6744,7 @@ int main() {
 strerror()
 ; return 0; }
 EOF
-if { (eval echo configure:6674: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6748: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -6693,18 +6767,18 @@ fi
   
 
 echo $ac_n "checking for working const""... $ac_c" 1>&6
-echo "configure:6697: checking for working const" >&5
+echo "configure:6771: checking for working const" >&5
 if eval "test \"`echo '$''{'ac_cv_c_const'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6702 "configure"
+#line 6776 "configure"
 #include "confdefs.h"
 
 int main() {
 
 /* Ultrix mips cc rejects this.  */
-typedef int charset[2]; const charset x;
+typedef int charset[2]; const charset x = {0,0};
 /* SunOS 4.1.1 cc rejects this.  */
 char const *const *ccp;
 char **p;
@@ -6747,7 +6821,7 @@ ccp = (char const *const *) p;
 
 ; return 0; }
 EOF
-if { (eval echo configure:6751: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:6825: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_c_const=yes
 else
@@ -6768,21 +6842,21 @@ EOF
 fi
 
 echo $ac_n "checking for inline""... $ac_c" 1>&6
-echo "configure:6772: checking for inline" >&5
+echo "configure:6846: checking for inline" >&5
 if eval "test \"`echo '$''{'ac_cv_c_inline'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   ac_cv_c_inline=no
 for ac_kw in inline __inline__ __inline; do
   cat > conftest.$ac_ext <<EOF
-#line 6779 "configure"
+#line 6853 "configure"
 #include "confdefs.h"
 
 int main() {
-} $ac_kw foo() {
+} int $ac_kw foo() {
 ; return 0; }
 EOF
-if { (eval echo configure:6786: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:6860: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_c_inline=$ac_kw; break
 else
@@ -6808,12 +6882,12 @@ EOF
 esac
 
 echo $ac_n "checking for off_t""... $ac_c" 1>&6
-echo "configure:6812: checking for off_t" >&5
+echo "configure:6886: checking for off_t" >&5
 if eval "test \"`echo '$''{'ac_cv_type_off_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6817 "configure"
+#line 6891 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #if STDC_HEADERS
@@ -6841,12 +6915,12 @@ EOF
 fi
 
 echo $ac_n "checking for size_t""... $ac_c" 1>&6
-echo "configure:6845: checking for size_t" >&5
+echo "configure:6919: checking for size_t" >&5
 if eval "test \"`echo '$''{'ac_cv_type_size_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6850 "configure"
+#line 6924 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #if STDC_HEADERS
@@ -6876,19 +6950,19 @@ 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""... $ac_c" 1>&6
-echo "configure:6880: checking for working alloca.h" >&5
+echo "configure:6954: checking for working alloca.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_alloca_h'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6885 "configure"
+#line 6959 "configure"
 #include "confdefs.h"
 #include <alloca.h>
 int main() {
-char *p = alloca(2 * sizeof(int));
+void *p = alloca(2 * sizeof(int));
 ; return 0; }
 EOF
-if { (eval echo configure:6892: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6966: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   ac_cv_header_alloca_h=yes
 else
@@ -6909,12 +6983,12 @@ EOF
 fi
 
 echo $ac_n "checking for alloca""... $ac_c" 1>&6
-echo "configure:6913: checking for alloca" >&5
+echo "configure:6987: checking for alloca" >&5
 if eval "test \"`echo '$''{'ac_cv_func_alloca_works'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6918 "configure"
+#line 6992 "configure"
 #include "confdefs.h"
 
 #ifdef __GNUC__
@@ -6942,7 +7016,7 @@ int main() {
 char *p = (char *) alloca(1);
 ; return 0; }
 EOF
-if { (eval echo configure:6946: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:7020: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   ac_cv_func_alloca_works=yes
 else
@@ -6974,12 +7048,12 @@ EOF
 
 
 echo $ac_n "checking whether alloca needs Cray hooks""... $ac_c" 1>&6
-echo "configure:6978: checking whether alloca needs Cray hooks" >&5
+echo "configure:7052: checking whether alloca needs Cray hooks" >&5
 if eval "test \"`echo '$''{'ac_cv_os_cray'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6983 "configure"
+#line 7057 "configure"
 #include "confdefs.h"
 #if defined(CRAY) && ! defined(CRAY2)
 webecray
@@ -7004,12 +7078,12 @@ 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:7008: checking for $ac_func" >&5
+echo "configure:7082: 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 7013 "configure"
+#line 7087 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -7032,7 +7106,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:7036: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:7110: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -7059,7 +7133,7 @@ done
 fi
 
 echo $ac_n "checking stack direction for C alloca""... $ac_c" 1>&6
-echo "configure:7063: checking stack direction for C alloca" >&5
+echo "configure:7137: checking stack direction for C alloca" >&5
 if eval "test \"`echo '$''{'ac_cv_c_stack_direction'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -7067,7 +7141,7 @@ else
   ac_cv_c_stack_direction=0
 else
   cat > conftest.$ac_ext <<EOF
-#line 7071 "configure"
+#line 7145 "configure"
 #include "confdefs.h"
 find_stack_direction ()
 {
@@ -7086,7 +7160,7 @@ main ()
   exit (find_stack_direction() < 0);
 }
 EOF
-if { (eval echo configure:7090: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:7164: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_c_stack_direction=1
 else
@@ -7113,17 +7187,17 @@ unistd.h sys/param.h
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:7117: checking for $ac_hdr" >&5
+echo "configure:7191: 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 7122 "configure"
+#line 7196 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:7127: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:7201: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -7153,12 +7227,12 @@ done
 strdup __argz_count __argz_stringify __argz_next
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:7157: checking for $ac_func" >&5
+echo "configure:7231: 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 7162 "configure"
+#line 7236 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -7181,7 +7255,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:7185: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:7259: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -7210,12 +7284,12 @@ done
      for ac_func in stpcpy
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:7214: checking for $ac_func" >&5
+echo "configure:7288: 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 7219 "configure"
+#line 7293 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -7238,7 +7312,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:7242: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:7316: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -7272,19 +7346,19 @@ EOF
 
    if test $ac_cv_header_locale_h = yes; then
     echo $ac_n "checking for LC_MESSAGES""... $ac_c" 1>&6
-echo "configure:7276: checking for LC_MESSAGES" >&5
+echo "configure:7350: checking for LC_MESSAGES" >&5
 if eval "test \"`echo '$''{'am_cv_val_LC_MESSAGES'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7281 "configure"
+#line 7355 "configure"
 #include "confdefs.h"
 #include <locale.h>
 int main() {
 return LC_MESSAGES
 ; return 0; }
 EOF
-if { (eval echo configure:7288: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:7362: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   am_cv_val_LC_MESSAGES=yes
 else
@@ -7305,7 +7379,7 @@ EOF
     fi
   fi
    echo $ac_n "checking whether NLS is requested""... $ac_c" 1>&6
-echo "configure:7309: checking whether NLS is requested" >&5
+echo "configure:7383: checking whether NLS is requested" >&5
         # Check whether --enable-nls or --disable-nls was given.
 if test "${enable_nls+set}" = set; then
   enableval="$enable_nls"
@@ -7325,7 +7399,7 @@ fi
 EOF
 
       echo $ac_n "checking whether included gettext is requested""... $ac_c" 1>&6
-echo "configure:7329: checking whether included gettext is requested" >&5
+echo "configure:7403: checking whether included gettext is requested" >&5
       # Check whether --with-included-gettext or --without-included-gettext was given.
 if test "${with_included_gettext+set}" = set; then
   withval="$with_included_gettext"
@@ -7344,17 +7418,17 @@ fi
 
 	ac_safe=`echo "libintl.h" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for libintl.h""... $ac_c" 1>&6
-echo "configure:7348: checking for libintl.h" >&5
+echo "configure:7422: checking for libintl.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7353 "configure"
+#line 7427 "configure"
 #include "confdefs.h"
 #include <libintl.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:7358: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:7432: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -7371,19 +7445,19 @@ fi
 if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
   echo "$ac_t""yes" 1>&6
   echo $ac_n "checking for gettext in libc""... $ac_c" 1>&6
-echo "configure:7375: checking for gettext in libc" >&5
+echo "configure:7449: checking for gettext in libc" >&5
 if eval "test \"`echo '$''{'gt_cv_func_gettext_libc'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7380 "configure"
+#line 7454 "configure"
 #include "confdefs.h"
 #include <libintl.h>
 int main() {
 return (int) gettext ("")
 ; return 0; }
 EOF
-if { (eval echo configure:7387: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:7461: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   gt_cv_func_gettext_libc=yes
 else
@@ -7399,7 +7473,7 @@ echo "$ac_t""$gt_cv_func_gettext_libc" 1>&6
 
 	   if test "$gt_cv_func_gettext_libc" != "yes"; then
 	     echo $ac_n "checking for bindtextdomain in -lintl""... $ac_c" 1>&6
-echo "configure:7403: checking for bindtextdomain in -lintl" >&5
+echo "configure:7477: checking for bindtextdomain in -lintl" >&5
 ac_lib_var=`echo intl'_'bindtextdomain | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -7407,7 +7481,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lintl  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 7411 "configure"
+#line 7485 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -7418,7 +7492,7 @@ int main() {
 bindtextdomain()
 ; return 0; }
 EOF
-if { (eval echo configure:7422: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:7496: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -7434,12 +7508,12 @@ fi
 if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
   echo "$ac_t""yes" 1>&6
   echo $ac_n "checking for gettext in libintl""... $ac_c" 1>&6
-echo "configure:7438: checking for gettext in libintl" >&5
+echo "configure:7512: checking for gettext in libintl" >&5
 if eval "test \"`echo '$''{'gt_cv_func_gettext_libintl'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   echo $ac_n "checking for gettext in -lintl""... $ac_c" 1>&6
-echo "configure:7443: checking for gettext in -lintl" >&5
+echo "configure:7517: checking for gettext in -lintl" >&5
 ac_lib_var=`echo intl'_'gettext | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -7447,7 +7521,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lintl  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 7451 "configure"
+#line 7525 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -7458,7 +7532,7 @@ int main() {
 gettext()
 ; return 0; }
 EOF
-if { (eval echo configure:7462: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:7536: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -7497,7 +7571,7 @@ EOF
 	      # Extract the first word of "msgfmt", so it can be a program name with args.
 set dummy msgfmt; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:7501: checking for $ac_word" >&5
+echo "configure:7575: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_MSGFMT'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -7531,12 +7605,12 @@ fi
 		for ac_func in dcgettext
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:7535: checking for $ac_func" >&5
+echo "configure:7609: 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 7540 "configure"
+#line 7614 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -7559,7 +7633,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:7563: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:7637: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -7586,7 +7660,7 @@ done
 		# Extract the first word of "gmsgfmt", so it can be a program name with args.
 set dummy gmsgfmt; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:7590: checking for $ac_word" >&5
+echo "configure:7664: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_GMSGFMT'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -7622,7 +7696,7 @@ fi
 		# Extract the first word of "xgettext", so it can be a program name with args.
 set dummy xgettext; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:7626: checking for $ac_word" >&5
+echo "configure:7700: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_XGETTEXT'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -7654,7 +7728,7 @@ else
 fi
 
 		cat > conftest.$ac_ext <<EOF
-#line 7658 "configure"
+#line 7732 "configure"
 #include "confdefs.h"
 
 int main() {
@@ -7662,7 +7736,7 @@ extern int _nl_msg_cat_cntr;
 			       return _nl_msg_cat_cntr
 ; return 0; }
 EOF
-if { (eval echo configure:7666: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:7740: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   CATOBJEXT=.gmo
 		   DATADIRNAME=share
@@ -7685,7 +7759,7 @@ fi
 
         if test "$CATOBJEXT" = "NONE"; then
 	  echo $ac_n "checking whether catgets can be used""... $ac_c" 1>&6
-echo "configure:7689: checking whether catgets can be used" >&5
+echo "configure:7763: checking whether catgets can be used" >&5
 	  # Check whether --with-catgets or --without-catgets was given.
 if test "${with_catgets+set}" = set; then
   withval="$with_catgets"
@@ -7698,7 +7772,7 @@ fi
 
 	  if test "$nls_cv_use_catgets" = "yes"; then
 	    	    echo $ac_n "checking for main in -li""... $ac_c" 1>&6
-echo "configure:7702: checking for main in -li" >&5
+echo "configure:7776: checking for main in -li" >&5
 ac_lib_var=`echo i'_'main | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -7706,14 +7780,14 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-li  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 7710 "configure"
+#line 7784 "configure"
 #include "confdefs.h"
 
 int main() {
 main()
 ; return 0; }
 EOF
-if { (eval echo configure:7717: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:7791: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -7741,12 +7815,12 @@ else
 fi
 
 	    echo $ac_n "checking for catgets""... $ac_c" 1>&6
-echo "configure:7745: checking for catgets" >&5
+echo "configure:7819: checking for catgets" >&5
 if eval "test \"`echo '$''{'ac_cv_func_catgets'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7750 "configure"
+#line 7824 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char catgets(); below.  */
@@ -7769,7 +7843,7 @@ catgets();
 
 ; return 0; }
 EOF
-if { (eval echo configure:7773: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:7847: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_catgets=yes"
 else
@@ -7791,7 +7865,7 @@ EOF
 	       # Extract the first word of "gencat", so it can be a program name with args.
 set dummy gencat; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:7795: checking for $ac_word" >&5
+echo "configure:7869: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_GENCAT'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -7827,7 +7901,7 @@ fi
 		 # Extract the first word of "gmsgfmt", so it can be a program name with args.
 set dummy gmsgfmt; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:7831: checking for $ac_word" >&5
+echo "configure:7905: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_GMSGFMT'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -7864,7 +7938,7 @@ fi
 		   # Extract the first word of "msgfmt", so it can be a program name with args.
 set dummy msgfmt; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:7868: checking for $ac_word" >&5
+echo "configure:7942: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_GMSGFMT'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -7899,7 +7973,7 @@ fi
 		 # Extract the first word of "xgettext", so it can be a program name with args.
 set dummy xgettext; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:7903: checking for $ac_word" >&5
+echo "configure:7977: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_XGETTEXT'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -7957,7 +8031,7 @@ fi
         # Extract the first word of "msgfmt", so it can be a program name with args.
 set dummy msgfmt; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:7961: checking for $ac_word" >&5
+echo "configure:8035: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_MSGFMT'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -7991,7 +8065,7 @@ fi
         # Extract the first word of "gmsgfmt", so it can be a program name with args.
 set dummy gmsgfmt; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:7995: checking for $ac_word" >&5
+echo "configure:8069: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_GMSGFMT'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -8027,7 +8101,7 @@ fi
         # Extract the first word of "xgettext", so it can be a program name with args.
 set dummy xgettext; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:8031: checking for $ac_word" >&5
+echo "configure:8105: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_XGETTEXT'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -8120,7 +8194,7 @@ fi
        LINGUAS=
      else
        echo $ac_n "checking for catalogs to be installed""... $ac_c" 1>&6
-echo "configure:8124: checking for catalogs to be installed" >&5
+echo "configure:8198: checking for catalogs to be installed" >&5
        NEW_LINGUAS=
        for lang in ${LINGUAS=$ALL_LINGUAS}; do
          case "$ALL_LINGUAS" in
@@ -8148,17 +8222,17 @@ echo "configure:8124: checking for catalogs to be installed" >&5
    if test "$CATOBJEXT" = ".cat"; then
      ac_safe=`echo "linux/version.h" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for linux/version.h""... $ac_c" 1>&6
-echo "configure:8152: checking for linux/version.h" >&5
+echo "configure:8226: checking for linux/version.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 8157 "configure"
+#line 8231 "configure"
 #include "confdefs.h"
 #include <linux/version.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:8162: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:8236: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -8233,7 +8307,7 @@ fi
 
 
 echo $ac_n "checking whether windows registry support is requested""... $ac_c" 1>&6
-echo "configure:8237: checking whether windows registry support is requested" >&5
+echo "configure:8311: checking whether windows registry support is requested" >&5
 if test x$enable_win32_registry != xno; then
   cat >> confdefs.h <<\EOF
 #define ENABLE_WIN32_REGISTRY 1
@@ -8262,7 +8336,7 @@ esac
 
 if test x$enable_win32_registry != xno; then
   echo $ac_n "checking registry key on windows hosts""... $ac_c" 1>&6
-echo "configure:8266: checking registry key on windows hosts" >&5
+echo "configure:8340: checking registry key on windows hosts" >&5
   cat >> confdefs.h <<EOF
 #define WIN32_REGISTRY_KEY "$gcc_cv_win32_registry_key"
 EOF
@@ -8438,7 +8512,7 @@ fi
 
 # Figure out what assembler alignment features are present.
 echo $ac_n "checking assembler alignment features""... $ac_c" 1>&6
-echo "configure:8442: checking assembler alignment features" >&5
+echo "configure:8516: checking assembler alignment features" >&5
 gcc_cv_as=
 gcc_cv_as_alignment_features=
 gcc_cv_as_gas_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/gas
@@ -8559,7 +8633,7 @@ fi
 echo "$ac_t""$gcc_cv_as_alignment_features" 1>&6
 
 echo $ac_n "checking assembler subsection support""... $ac_c" 1>&6
-echo "configure:8563: checking assembler subsection support" >&5
+echo "configure:8637: checking assembler subsection support" >&5
 gcc_cv_as_subsections=
 if test x$gcc_cv_as != x; then
 	# Check if we have .subsection
@@ -8599,7 +8673,7 @@ fi
 echo "$ac_t""$gcc_cv_as_subsections" 1>&6
 
 echo $ac_n "checking assembler weak support""... $ac_c" 1>&6
-echo "configure:8603: checking assembler weak support" >&5
+echo "configure:8677: checking assembler weak support" >&5
 gcc_cv_as_weak=
 if test x$gcc_cv_as != x; then
 	# Check if we have .weak
@@ -8616,7 +8690,7 @@ fi
 echo "$ac_t""$gcc_cv_as_weak" 1>&6
 
 echo $ac_n "checking assembler hidden support""... $ac_c" 1>&6
-echo "configure:8620: checking assembler hidden support" >&5
+echo "configure:8694: checking assembler hidden support" >&5
 gcc_cv_as_hidden=
 if test x$gcc_cv_as != x; then
 	# Check if we have .hidden
@@ -8636,7 +8710,7 @@ echo "$ac_t""$gcc_cv_as_hidden" 1>&6
 case "$target" in 
   sparc*-*-*)
     echo $ac_n "checking assembler .register pseudo-op support""... $ac_c" 1>&6
-echo "configure:8640: checking assembler .register pseudo-op support" >&5
+echo "configure:8714: checking assembler .register pseudo-op support" >&5
 if eval "test \"`echo '$''{'gcc_cv_as_register_pseudo_op'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -8666,7 +8740,7 @@ EOF
     case "$tm_file" in
     *64*)
 	echo $ac_n "checking for 64 bit support in assembler ($gcc_cv_as)""... $ac_c" 1>&6
-echo "configure:8670: checking for 64 bit support in assembler ($gcc_cv_as)" >&5
+echo "configure:8744: checking for 64 bit support in assembler ($gcc_cv_as)" >&5
 if eval "test \"`echo '$''{'gcc_cv_as_flags64'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -8711,7 +8785,7 @@ EOF
 
     if test "x$gcc_cv_as_flags64" != xno; then
 	echo $ac_n "checking for assembler offsetable %lo() support""... $ac_c" 1>&6
-echo "configure:8715: checking for assembler offsetable %lo() support" >&5
+echo "configure:8789: checking for assembler offsetable %lo() support" >&5
 if eval "test \"`echo '$''{'gcc_cv_as_offsetable_lo10'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -8750,7 +8824,7 @@ EOF
 
   i[34567]86-*-*)
     echo $ac_n "checking assembler instructions""... $ac_c" 1>&6
-echo "configure:8754: checking assembler instructions" >&5
+echo "configure:8828: checking assembler instructions" >&5
     gcc_cv_as_instructions=
     if test x$gcc_cv_as != x; then
 	set "filds fists" "filds mem; fists mem"
@@ -8876,7 +8950,7 @@ fi
 
 # Build a new-libstdc++ system (ie libstdc++-v3)
 echo $ac_n "checking for libstdc++ to install""... $ac_c" 1>&6
-echo "configure:8880: checking for libstdc++ to install" >&5
+echo "configure:8954: checking for libstdc++ to install" >&5
 # Check whether --enable-libstdcxx-v3 or --disable-libstdcxx-v3 was given.
 if test "${enable_libstdcxx_v3+set}" = set; then
   enableval="$enable_libstdcxx_v3"
@@ -9347,6 +9421,9 @@ s%@INSTALL_PROGRAM@%$INSTALL_PROGRAM%g
 s%@INSTALL_DATA@%$INSTALL_DATA%g
 s%@CPP@%$CPP%g
 s%@gnat@%$gnat%g
+s%@MAKEINFO@%$MAKEINFO%g
+s%@BUILD_INFO@%$BUILD_INFO%g
+s%@INSTALL_INFO@%$INSTALL_INFO%g
 s%@vfprintf@%$vfprintf%g
 s%@doprint@%$doprint%g
 s%@manext@%$manext%g
diff --git a/gcc/configure.in b/gcc/configure.in
index 054cd5ca9aa..303f02cff7f 100644
--- a/gcc/configure.in
+++ b/gcc/configure.in
@@ -383,6 +383,30 @@ AC_CHECK_HEADER(pthread.h, [have_pthread_h=yes], [have_pthread_h=])
 # See if GNAT has been installed
 AC_CHECK_PROG(gnat, gnatbind, yes, no)
 
+# Do we have a single-tree copy of texinfo?
+if test -f $srcdir/../texinfo/Makefile.in; then
+  MAKEINFO='$(objdir)/../texinfo/makeinfo/makeinfo'
+  gcc_cv_prog_makeinfo_modern=yes
+  AC_MSG_RESULT([Using makeinfo from the unified source tree.])
+else
+  # See if makeinfo has been installed and is modern enough
+  # that we can use it.
+  gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
+  [GNU texinfo.* \([0-9][0-9.]*\)],
+  [3.1[2-9] | 3.[2-9][0-9] | 4.* | 1.6[89] | 1.7[0-9]])
+fi
+
+if test $gcc_cv_prog_makeinfo_modern = no; then
+  AC_MSG_WARN([
+*** Makeinfo is missing or too old.
+*** Info documentation will not be built or installed.])
+  BUILD_INFO=
+  INSTALL_INFO=
+else
+  BUILD_INFO=info		AC_SUBST(BUILD_INFO)
+  INSTALL_INFO=install-info	AC_SUBST(INSTALL_INFO)
+fi
+
 # See if the stage1 system preprocessor understands the ANSI C
 # preprocessor stringification operator.
 AC_C_STRINGIZE