--- gforth/configure.in	2003/01/27 22:00:10	1.108
+++ gforth/configure.in	2003/03/02 13:12:32	1.114
@@ -20,11 +20,12 @@ dnl Process this file with autoconf to p
 
 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],[0.5.9-20030201],[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="February 1st, 2003"
 AC_SUBST(UPDATED)
 AC_CONFIG_HEADERS(engine/config.h)
 
@@ -120,7 +121,7 @@ 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 +194,6 @@ 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 +282,35 @@ 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])
 
+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/$machine)
 AC_SUBST(asm_fs)
@@ -294,6 +318,12 @@ AC_SUBST(asm_fs)
 AC_CHECK_PROG(disasm_fs,disasm.fs,arch/$machine/disasm.fs,,$srcdir/arch/$machine)
 AC_SUBST(disasm_fs)
 
+AC_PATH_PROG(INSTALL_INFO,install-info,false,$PATH:/sbin:/usr/sbin:/usr/local/sbin)
+if $INSTALL_INFO --version|grep -i debian >/dev/null; then
+  INSTALL_INFO=false
+  AC_MSG_WARN([Debian install-info; disabling it])
+fi
+
 case "$host_os" in
 	*win32|cygwin)
 		DIRSEP="\\\\"
@@ -411,7 +441,7 @@ 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)