--- gforth/configure.in	2003/01/27 22:00:10	1.108
+++ gforth/configure.in	2003/05/15 18:43:15	1.121
@@ -1,6 +1,6 @@
 dnl Process this file with autoconf to produce a configure script.
 
-#Copyright (C) 1995,1996,1997,1998,2000 Free Software Foundation, Inc.
+#Copyright (C) 1995,1996,1997,1998,2000,2003 Free Software Foundation, Inc.
 
 #This file is part of Gforth.
 
@@ -18,16 +18,21 @@ dnl Process this file with autoconf to p
 #along with this program; if not, write to the Free Software
 #Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
 
+
 dnl We use some automake macros here,
 dnl but don't use automake for creating Makefile.in
-AC_INIT([gforth],[0.5.9-20030127],[https://savannah.gnu.org/bugs/?func=addbug&group=gforth])
+AC_INIT([gforth],[0.6.1],[https://savannah.gnu.org/bugs/?func=addbug&group=gforth])
+AC_PREREQ(2.54)
 #snapshots have numbers major.minor.release-YYYYMMDD
 #note that lexicographic ordering must be heeded.
 #I.e., 0.4.1-YYYYMMDD must not exist before 0.4.1!
-UPDATED="27 January 2003"
+UPDATED="March 11, 2003"
 AC_SUBST(UPDATED)
 AC_CONFIG_HEADERS(engine/config.h)
 
+#suppress the "-g -O2" default
+test "$CFLAGS" || CFLAGS=-O2
+
 #default setting that may be changed later:
 no_dynamic_default=0
 
@@ -39,7 +44,7 @@ AC_ARG_ENABLE(force-reg,
 AC_DEFINE(FORCE_REG,,[Define if you want to use explicit register declarations for better performance or for more convenient CODE words (does not work with all GCC versions on all machines)]))
 
 AC_ARG_WITH(debug,
-[  --with-debug     specifies option -g to compile with debug info (default)
+[  --with-debug    specifies option -g to compile with debug info
   --without-debug  omits the -g switch and creates smaller images on
                    machines where "strip" has problems with gcc style
                    debugging informations.],
@@ -84,8 +89,6 @@ dnl AC_DEFINE_UNQUOTED([_FILE_OFFSET_BIT
 #currently we force direct threading this way.  Eventually we should
 #setup in the arch and engine files right
 
-CFLAGS=$CFLAGS
-
 AC_PROG_CC
 
 test "$GCC" = "yes" || AC_MSG_ERROR(Gforth uses GNU C extensions and requires GCC 2.0 or higher)
@@ -120,7 +123,7 @@ case "$host_cpu" in
 		machine=hppa
 		$srcdir/mkinstalldirs arch/hppa
 		AC_LIBOBJ(../arch/hppa/cache)
-		LDFLAGS="$LDFLAGS -Xlinker -N"
+		#LDFLAGS="$LDFLAGS -Xlinker -N"
 		LIBS="$LIBS -L/lib/pa1.1/"
 		;;
 	sparc*)
@@ -193,7 +196,6 @@ case "$host_cpu" in
 		AC_MSG_WARN(Disabling dynamic native code generation by default (speed penalty factor ~2))
 esac
 AC_SUBST(host)
-AC_SUBST(ENGINE_FLAGS)
 
 dnl the following macro produces a warning with autoconf-2.1
 AC_CHECK_SIZEOF(char *)
@@ -282,11 +284,33 @@ test $ac_cv_sizeof_off_t -gt $ac_cv_size
 ac_small_off_t=$?
 AC_DEFINE_UNQUOTED(SMALL_OFF_T,$ac_small_off_t,[1 if off_t fits in a Cell])
 
-# Try if GCC understands -fno-cross-jump
+ENGINE_FLAGS=
+AC_SUBST(ENGINE_FLAGS)
+
+# Try if GCC understands -fno-gcse
 
+AC_MSG_CHECKING([if $CC understands -fno-gcse])
+CFLAGS_1="$CFLAGS"
+CFLAGS="$CFLAGS -fno-gcse"
+AC_TRY_COMPILE(,,ac_nogcse=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-gcse",ac_nogcse=no)
+CFLAGS="$CFLAGS_1"
+AC_MSG_RESULT($ac_nogcse)
+
+# Try if GCC understands -fno-strict-aliasing
+AC_MSG_CHECKING([if $CC understands -fno-strict-aliasing])
+CFLAGS_1="$CFLAGS"
+CFLAGS="$CFLAGS -fno-strict-aliasing"
+AC_TRY_COMPILE(,,ac_nostrictaliasing=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-strict-aliasing",ac_nostrictaliasing=no)
+CFLAGS="$CFLAGS_1"
+AC_MSG_RESULT($ac_nostrictaliasing)
+
+# Try if GCC understands -fno-cross-jump
+AC_MSG_CHECKING([if $CC understands -fno-cross-jump])
 CFLAGS_1="$CFLAGS"
 CFLAGS="$CFLAGS -fno-cross-jump"
-AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1")
+AC_TRY_COMPILE(,,ac_nocrossjump=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-cross-jump",ac_nocrossjump=no)
+CFLAGS="$CFLAGS_1"
+AC_MSG_RESULT($ac_nocrossjump)
 
 AC_CHECK_PROG(asm_fs,asm.fs,arch/$machine/asm.fs,,$srcdir/arch/$machine)
 AC_SUBST(asm_fs)
@@ -294,6 +318,8 @@ AC_SUBST(asm_fs)
 AC_CHECK_PROG(disasm_fs,disasm.fs,arch/$machine/disasm.fs,,$srcdir/arch/$machine)
 AC_SUBST(disasm_fs)
 
+AC_PATH_PROG(INSTALL_INFO,install-info,[echo '>>>>Please make info dir entry:'],$PATH:/sbin:/usr/sbin:/usr/local/sbin)
+
 case "$host_os" in
 	*win32|cygwin)
 		DIRSEP="\\\\"
@@ -301,7 +327,7 @@ case "$host_os" in
 	*darwin*)
 		#Darwin uses some funny preprocessor by default; eliminate it:
 		AC_MSG_NOTICE([using -traditional-cpp on Darwin])
-		CFLAGS="$CFLAGS -traditional-cpp"
+		CFLAGS="$CFLAGS -no-cpp-precomp"
 		DIRSEP="/"
 		;;
 	*)
@@ -411,7 +437,7 @@ fi
 AC_REPLACE_FUNCS(memmove strtoul pow10 strerror strsignal atanh)
 AC_FUNC_FSEEKO
 AC_CHECK_FUNCS(ftello dlopen sys_siglist getrusage)
-AC_CHECK_TYPES(stack_t)
+AC_CHECK_TYPES(stack_t,,,[#include <signal.h>])
 AC_DECL_SYS_SIGLIST
 AC_CHECK_FUNC(getopt_long,true,AC_LIBOBJ(getopt); AC_LIBOBJ(getopt1))
 AC_CHECK_FUNCS(expm1 log1p)