--- gforth/configure.in	2010/08/07 14:59:25	1.280
+++ gforth/configure.in	2011/11/14 22:33:22	1.290
@@ -1,6 +1,6 @@
 dnl Process this file with autoconf to produce a configure script.
 
-#Copyright (C) 1995,1996,1997,1998,2000,2003,2004,2005,2006,2007,2008,2009 Free Software Foundation, Inc.
+#Copyright (C) 1995,1996,1997,1998,2000,2003,2004,2005,2006,2007,2008,2009,2010 Free Software Foundation, Inc.
 
 #This file is part of Gforth.
 
@@ -20,12 +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],[0.7.0-20100725],[https://savannah.gnu.org/bugs/?func=addbug&group=gforth])
+AC_INIT([gforth],[0.7.9-20101227],[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="November 8, 2008"
+UPDATED="December 27, 2010"
 AC_SUBST(UPDATED)
 AC_CONFIG_HEADERS(engine/config.h)
 
@@ -108,6 +108,22 @@ else
   platform=${withval}
 fi])
 
+AC_ARG_WITH(cross,
+	AC_HELP_STRING([--with-cross=<arch>],
+			[  Build gforth using a cross compiler.]),
+[if test "$withval" = "no"; then
+  echo "defining hosted system"
+else
+  echo "defining cross compiled system (${withval})"
+  if test -f "arch/$host_cpu/${withval}/config.sh"; then
+    source "arch/$host_cpu/${withval}/config.sh"
+  fi
+  GCC_PATH=$(which $CC)
+  LIB_PATH=${GCC_PATH%/*/*}
+  GCC_LD="\$(LD)"
+  platform=${withval}
+fi])
+
 #variables mentioned in INSTALL
 AC_ARG_VAR(CC, [The C compiler (must support GNU C 2.x).])
 AC_ARG_VAR(FORTHSIZES, [Gforth command line options for the default stack and dictionary sizes (see INSTALL).])
@@ -242,14 +258,20 @@ case "$host_cpu" in
 		;;
 	i486)
 		machine=386
-		CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -m486"
+		CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr"
+		CFLAGS_1="$CFLAGS"
+		CFLAGS="$CFLAGS -march=i486"
+		AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486")
+		AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1")
 		;;
 	i*86)
 		machine=386
 		CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr"
 		CFLAGS_1="$CFLAGS"
-		CFLAGS="$CFLAGS -march=pentium"
+		CFLAGS="$CFLAGS -march=pentium -mtune=generic"
+		AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -march=pentium")
 		AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486")
+		AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1")
 		;;
 	x86_64)
 		case $CC
@@ -282,6 +304,7 @@ case "$host_cpu" in
 		;;
 	mips*)
 		machine=mips
+		AC_LIBOBJ(../arch/mips/check_prim) 
 		#dynamic native code has the following problems on MIPS:
 		#
 		#1) J/JAL seems relocatable, but is are only
@@ -662,6 +685,12 @@ AC_TRY_COMPILE(,[int __attribute__((unus
 AC_DEFINE_UNQUOTED(MAYBE_UNUSED,$MAYBE_UNUSED,[attribute for possibly unused variables])
 AC_MSG_RESULT($MAYBE_UNUSED)
 
+# Try if GCC understands __thread
+AC_MSG_CHECKING([whether gcc understands '__thread'])
+AC_TRY_COMPILE(,[extern __thread int foo;],PER_THREAD='__thread',)
+AC_DEFINE_UNQUOTED(PER_THREAD,$PER_THREAD,[storage class for thread-local variables])
+AC_MSG_RESULT($PER_THREAD)
+
 #try if m4 understands -s
 AC_MSG_CHECKING([how to invoke m4])
 if m4 -s /dev/null >/dev/null 2>&1; then
@@ -880,6 +909,11 @@ AC_PROG_LN_S
 AC_PROG_INSTALL
 AC_CHECK_PROGS(TEXI2DVI,texi2dvi4a2ps texi2dvi)
 
+dnl check for the presence of Emacs
+AC_CHECK_PROGS(EMACS,emacs xemacs)
+test -n "$EMACS" && gforth_elc=gforth.elc
+AC_SUBST(gforth_elc)
+
 dnl MacOS X has a libtool that does something else
 AC_CHECK_PROGS(GNU_LIBTOOL,"glibtool --tag=CC" libtool)
 
@@ -910,7 +944,7 @@ if test -z "$FFI_H_NAME"; then
   AC_CHECK_HEADER(ffi/ffi.h,FFI_H_NAME=ffi/ffi.h,)
 fi
 AC_SUBST(FFI_H_NAME)
-AC_CHECK_LIB(ffi,ffi_call)
+AC_CHECK_LIB(ffi,ffi_call,LIBS="$LIBS")
 if test -n "$FFI_H_NAME" -a $ac_cv_lib_ffi_ffi_call = yes
 then
   LIBFFIFLAG="true"
@@ -920,7 +954,7 @@ else
 fi
 #check for ffcall libraries
 #unfortunately, these four calls are separated out into a library each.
-AC_CHECK_LIB(avcall,__builtin_avcall)
+AC_CHECK_LIB(avcall,__builtin_avcall,LIBS="$LIBS")
 dnl AC_CHECK_LIB(callback,__vacall_r)
 dnl AC_CHECK_LIB(vacall,vacall)
 dnl AC_CHECK_LIB(trampoline,alloc_trampoline)