--- gforth/configure.in	2008/11/02 17:16:46	1.265
+++ gforth/configure.in	2012/03/17 01:36:03	1.299
@@ -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 Free Software Foundation, Inc.
+#Copyright (C) 1995,1996,1997,1998,2000,2003,2004,2005,2006,2007,2008,2009,2010,2011 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],[https://savannah.gnu.org/bugs/?func=addbug&group=gforth])
+AC_INIT([gforth],[0.7.9-20120317],[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 2, 2008"
+UPDATED="March 17, 2012"
 AC_SUBST(UPDATED)
 AC_CONFIG_HEADERS(engine/config.h)
 
@@ -70,6 +70,8 @@ if test "$withval" = "yes"; then DEBUGFL
 
 GCC_LD="\$(GCC)"
 EC_MODE="false"
+NO_EC=""
+NO_CROSS=""
 EC=""
 engine2='engine2$(OPT).o'
 engine_fast2='engine-fast2$(OPT).o'
@@ -77,6 +79,7 @@ no_dynamic=""
 image_i=""
 signals_o="io.o signals.o"
 
+AC_CANONICAL_HOST
 AC_ARG_WITH(ec,
 	AC_HELP_STRING([--with-ec=<arch>],
 			[  Build gforth for systems without OS.]),
@@ -87,6 +90,8 @@ else
   AC_DEFINE(STANDALONE,,[Define if you want a Gforth without OS])
   EC_MODE="true"
   EC="-ec"
+  NO_EC="#"
+  NO_CROSS="#"
   engine2=""
   engine_fast2=""
   no_dynamic="-DNO_DYNAMIC"
@@ -96,12 +101,32 @@ else
   else
     signals_o="io.o"
   fi
+  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])
 
+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%/*/*}
+  platform=${withval}
+  NO_EC=""
+  NO_CROSS="#"
+fi])
+
 #variables mentioned in INSTALL
 AC_ARG_VAR(CC, [The C compiler (must support GNU C 2.x).])
 AC_ARG_VAR(FORTHSIZES, [Gforth command line options for the default stack and dictionary sizes (see INSTALL).])
@@ -165,6 +190,8 @@ AC_SUBST(CC)
 AC_SUBST(GCC_LD)
 AC_SUBST(DEBUGFLAG)
 AC_SUBST(EC)
+AC_SUBST(NO_EC)
+AC_SUBST(NO_CROSS)
 AC_SUBST(EC_MODE)
 AC_SUBST(engine2)
 AC_SUBST(engine_fast2)
@@ -193,7 +220,6 @@ AC_MSG_RESULT($ac_export_dynamic)
 
 #terminology is a bit unusual here: The host is the system on which
 #gforth will run; the system on which configure will run is the `build'
-AC_CANONICAL_HOST
 case "$host_cpu" in
 	arm*)
 		machine=arm
@@ -236,14 +262,20 @@ case "$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 $CC
@@ -276,6 +308,7 @@ case "$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
@@ -328,6 +361,7 @@ esac
 AC_SUBST(host)
 
 MAKEINC=""
+GFORTH_EXE="true"
 
 echo "Check for arch/$machine/$platform/gforth.ld ($EC_MODE)"
 if test x$EC_MODE = xtrue
@@ -343,6 +377,7 @@ then
 	if test -f arch/$machine/$platform/make.inc
 	then
 		MAKEINC="include ../arch/$machine/$platform/make.inc"
+		GFORTH_EXE="\$(MAKE) -f arch/$machine/$platform/make.inc \$@.exe"
 	fi
 fi
 AC_SUBST(MAKEINC)
@@ -471,6 +506,31 @@ esac
 AC_MSG_RESULT($ac_cv_tetrabyte_type_cell)
 AC_DEFINE_UNQUOTED(TETRABYTE_TYPE,$ac_cv_tetrabyte_type_cell,[an integer type that is 4 bytes long])
 
+AC_MSG_CHECKING([for a C type for octabytes])
+ac_cv_octabyte_type_cell=none
+case 8 in
+  $ac_cv_sizeof_int)
+    ac_cv_octabyte_type_cell=int
+    ;;
+  $ac_cv_sizeof_short)
+    ac_cv_octabyte_type_cell=short
+    ;;
+  $ac_cv_sizeof_char)
+    ac_cv_octabyte_type_cell=char
+    ;;
+  $ac_cv_sizeof_long)
+    ac_cv_octabyte_type_cell=long
+    ;;
+  $ac_cv_sizeof_long_long)
+    ac_cv_octabyte_type_cell="long long"
+    ;;
+  $ac_cv_sizeof_intptr_t)
+    ac_cv_octabyte_type_cell="intptr_t"
+    ;;
+esac
+AC_MSG_RESULT($ac_cv_octabyte_type_cell)
+AC_DEFINE_UNQUOTED(OCTABYTE_TYPE,$ac_cv_octabyte_type_cell,[an integer type that is 8 bytes long])
+
 AC_MSG_CHECKING([for a C type for double-cells])
 ac_cv_int_type_double_cell=none
 case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
@@ -608,12 +668,33 @@ AC_TRY_COMPILE(,,ac_align_jumps=yes;ENGI
 CFLAGS="$CFLAGS_1"
 AC_MSG_RESULT($ac_align_jumps)
 
+if test -z "$LIBTOOL_CC"
+then
+  LIBTOOL_CC="$CC"
+  # Try if GCC understands -Wimplicit-function-declaration
+  AC_MSG_CHECKING([if $CC understands -Wimplicit-function-declaration])
+  CFLAGS_1="$CFLAGS"
+  CFLAGS="$CFLAGS -Wimplicit-function-declaration"
+  AC_TRY_COMPILE(,,LIBTOOL_CC="$CC -Wimplicit-function-declaration",)
+  CFLAGS="$CFLAGS_1"
+  AC_MSG_RESULT($ac_align_jumps)
+fi
+AC_SUBST(LIBTOOL_CC)
+
+
+
 # Try if GCC understands __attribute__((unused))
 AC_MSG_CHECKING([how to suppress 'unused variable' warnings])
 AC_TRY_COMPILE(,[int __attribute__((unused)) foo;], MAYBE_UNUSED='__attribute__((unused))',)
 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
@@ -624,30 +705,22 @@ fi
 AC_SUBST(M4)
 AC_MSG_RESULT($M4)
 
-# Find installed Gforth
-AC_MSG_CHECKING([for gforth])
-GFORTH="`cd / && which gforth 2>/dev/null`"
-#the "$srcdir" = "." test defends agains the "../" bug in gforth-0.6.2
-(cd / && $GFORTH -e bye >/dev/null 2>/dev/null  && test "$srcdir" = ".") || GFORTH=""
-if test -z "$GFORTH"; then
-  PREFORTH='echo "You need to configure with a gforth in \$PATH to build this part" && false'
-  kernel_anti_dependence=''
-else
-  PREFORTH="$GFORTH -i `cd / && $GFORTH --debug -e bye 2>&1 |grep "Opened image file: "|sed 's/Opened image file: //'`" ;
-  kernel_anti_dependence='$(kernel_fi)'
-fi
-AC_SUBST(PREFORTH)
-AC_SUBST(kernel_anti_dependence)
-AC_MSG_RESULT($PREFORTH)
-
 #echo "machine='$machine'"
 
 dnl AC_CHECK_PROG(asm_fs,asm.fs,arch/$machine/asm.fs,,$srcdir/arch/$machine)
-AC_CHECK_FILE($srcdir/arch/$machine/asm.fs,[asm_fs=arch/$machine/asm.fs],)
+if test x$EC_MODE = xfalse
+then
+  AS_IF([test -f $srcdir/arch/$machine/asm.fs],
+        [asm_fs=arch/$machine/asm.fs])
+fi
 AC_SUBST(asm_fs)
 
 dnl AC_CHECK_PROG(disasm_fs,disasm.fs,arch/$machine/disasm.fs,,$srcdir/arch/$machine)
-AC_CHECK_FILE($srcdir/arch/$machine/disasm.fs,[disasm_fs=arch/$machine/disasm.fs],)
+if test x$EC_MODE = xfalse
+then
+  AS_IF([test -f $srcdir/arch/$machine/disasm.fs],
+   	[disasm_fs=arch/$machine/disasm.fs])
+fi
 AC_SUBST(disasm_fs)
 
 AC_PATH_PROG(INSTALL_INFO,install-info,[echo '>>>>Please make info dir entry:'],$PATH:/sbin:/usr/sbin:/usr/local/sbin)
@@ -704,14 +777,13 @@ fi
 AC_CHECK_PROG([MASSAGE_EXE],[chcon],[chcon -t unconfined_execmem_exec_t],[true])
 
 dnl Now a little support for DOS/DJGCC
+GFORTHFAST_EXE="$GFORTH_EXE"
+GFORTHITC_EXE="$GFORTH_EXE"
+GFORTHDITC_EXE="$GFORTH_EXE"
 AC_SUBST(GFORTH_EXE)
-GFORTH_EXE="true"
 AC_SUBST(GFORTHFAST_EXE)
-GFORTHFAST_EXE="true"
 AC_SUBST(GFORTHITC_EXE)
-GFORTHITC_EXE="true"
 AC_SUBST(GFORTHDITC_EXE)
-GFORTHDITC_EXE="true"
 
 AC_SUBST(FORTHSIZES)
 
@@ -752,7 +824,11 @@ fi
 #echo "CFLAGS=$CFLAGS"
 #echo "ac_link=$ac_link"
 AC_MSG_CHECKING([if and how we can waste code space])
-if test -z "$skipcode"; then
+if test -z "$skipcode" && test x$cross_compiling = xyes; then
+   # we cannot perform the AC_TRY_RUN check when cross-compiling.  
+   skipcode=no
+   AC_MSG_RESULT([$skipcode, can't run checks since cross-compiling])
+elif test -z "$skipcode"; then
     skipcode=no
     CFLAGS_1="$CFLAGS"
     CFLAGS="$CFLAGS $ENGINE_FLAGS"
@@ -790,7 +866,7 @@ then
 	no_dynamic_default=1
 	AC_MSG_WARN(Disabling default dynamic native code generation)
     fi
-    AC_DEFINE_UNQUOTED(SKIP16,((void)0),statement for skipping 16 bytes)
+    AC_DEFINE_UNQUOTED(SKIP16,asm(""),statement for skipping 16 bytes)
 else
     AC_DEFINE_UNQUOTED(SKIP16,asm("$skipcode"),statement for skipping 16 bytes)
 fi
@@ -821,29 +897,43 @@ 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)
 
-if test -n "$GNU_LIBTOOL"; then
+dnl Checks for library functions
+dnl This check is just for making later checks link with libm.
+dnl using sin here is no good idea since it is built-into gcc and typechecked
+AC_CHECK_LIB(m,asin)
+AC_CHECK_LIB(ltdl,lt_dlinit)
+AC_CHECK_LIB(rt,clock_gettime)
+
+if test -n "$GNU_LIBTOOL" -a $ac_cv_lib_ltdl_lt_dlinit = yes; then
   build_libcc_named=build-libcc-named
 else
   build_libcc_named=""
+  AC_MSG_WARN([No GNU_LIBTOOL found, skip pre-building libcc-based libraries])
 fi
 AC_SUBST(build_libcc_named)
 
 
-dnl Checks for library functions
-dnl This check is just for making later checks link with libm.
-dnl using sin here is no good idea since it is built-into gcc and typechecked
-AC_CHECK_LIB(m,asin)
-AC_CHECK_LIB(ltdl,lt_dlinit)
+if test -z "$GNU_LIBTOOL"; then
+  AC_MSG_WARN([No GNU_LIBTOOL found, using "libtool" as name.])
+  AC_MSG_WARN([libcc.fs won't work until you have installed (GNU) libtool.])
+  GNU_LIBTOOL=libtool
+fi
+
 #check for libffi 2.x
 AC_CHECK_HEADER(ffi.h,FFI_H_NAME=ffi.h,)
 if test -z "$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 $ac_cv_lib_ffi_ffi_call = yes
 then
   LIBFFIFLAG="true"
@@ -853,7 +943,7 @@ else
 fi
 #check for ffcall libraries
 #unfortunately, these four calls are separated out into a library each.
-AC_CHECK_LIB(avcall,__builtin_avcall)
+AC_CHECK_LIB(avcall,__builtin_avcall,LIBS="$LIBS")
 dnl AC_CHECK_LIB(callback,__vacall_r)
 dnl AC_CHECK_LIB(vacall,vacall)
 dnl AC_CHECK_LIB(trampoline,alloc_trampoline)
@@ -875,7 +965,7 @@ then
 fi
 AC_REPLACE_FUNCS(memmove strtoul pow10 strerror strsignal atanh)
 AC_FUNC_FSEEKO
-AC_CHECK_FUNCS(ftello dlopen sys_siglist getrusage nanosleep)
+AC_CHECK_FUNCS(ftello dlopen sys_siglist getrusage nanosleep clock_gettime)
 AC_CHECK_TYPES(stack_t,,,[#include <signal.h>])
 AC_DECL_SYS_SIGLIST
 AC_CHECK_FUNC(getopt_long,[true],[AC_LIBOBJ(getopt) AC_LIBOBJ(getopt1)])
@@ -883,7 +973,7 @@ AC_CHECK_FUNCS(expm1 log1p)
 AC_REPLACE_FUNCS(rint ecvt)
 dnl No check for select, because our replacement is no good under
 dnl anything but DOS
-AC_CHECK_HEADERS(sys/mman.h fnmatch.h alloca.h wchar.h)
+AC_CHECK_HEADERS(sys/mman.h fnmatch.h alloca.h wchar.h endian.h)
 AC_FUNC_FNMATCH
 test $ac_cv_func_fnmatch_works = yes || AC_LIBOBJ(fnmatch)
 AC_CHECK_FUNCS(mmap sysconf getpagesize wcwidth)
@@ -894,6 +984,30 @@ include_fi=kernl${wordsize}${bytesex}${E
 AC_SUBST(kernel_fi)
 AC_SUBST(include_fi)
 
+# Find installed Gforth
+AC_MSG_CHECKING([for gforth])
+GFORTH="`cd / && which gforth 2>/dev/null`"
+#the "$srcdir" = "." test defends agains the "../" bug in gforth-0.6.2
+(cd / && $GFORTH -e bye >/dev/null 2>/dev/null  && test "$srcdir" = ".") || GFORTH=""
+if test -z "$GFORTH"; then
+  PREFORTH='echo "You need to configure with a gforth in \$PATH to build this part" && false'
+  GFORTHKER='echo "You need to configure with a gforth in \$PATH to build this part" && false'
+  kernel_anti_dependence=''
+else
+  GFORTH_FI=`cd / && $GFORTH --debug -e bye 2>&1 |grep "Opened image file: "|sed 's/Opened image file: //'`
+  PREFORTH="$GFORTH -i $GFORTH_FI" ;
+  KERNLX_FI1=`echo $GFORTH_FI | sed -e s/lib/share/g -e s/gforth.fi/kernl*.fi/g`
+  KERNLX_FI2=`echo $GFORTH_FI | sed -e s/gforth.fi/kernl*.fi/g`
+  test -f $KERNLX_FI1 && KERNLX_FI=$KERNLX_FI1
+  test -f $KERNLX_FI2 && KERNLX_FI=$KERNLX_FI2
+  GFORTHKER="$GFORTH -i `echo $KERNLX_FI`" ;
+  kernel_anti_dependence='$(kernel_fi)'
+fi
+AC_SUBST(PREFORTH)
+AC_SUBST(GFORTHKER)
+AC_SUBST(kernel_anti_dependence)
+AC_MSG_RESULT($PREFORTH)
+
 #this breaks bindists
 #dnl replace srource directory by absolute value
 #if test $srcdir = "."; then srcdir=`pwd` 
@@ -908,6 +1022,7 @@ vmgen
 machpc.fs
 envos.fs
 preforth
+gforthker
 engine/Makefile
 engine/libcc.h
 doc/version.texi
@@ -917,6 +1032,7 @@ chmod +x gforthmi
 chmod +x vmgen
 chmod +x build-ec
 chmod +x preforth
+chmod +x gforthker
 test -d kernel||mkdir kernel
 if test $srcdir != "."; then ln -sf $srcdir/gforth.el .; fi
 $srcdir/mkinstalldirs include/gforth/$PACKAGE_VERSION
@@ -925,4 +1041,3 @@ ln -sf ../../../engine/config.h ../../..
 [PACKAGE_VERSION=$PACKAGE_VERSION
  machine=$machine])
 AC_OUTPUT
-