--- gforth/configure.in	2011/12/31 15:29:25	1.297
+++ gforth/configure.in	2012/06/27 20:49:34	1.309
@@ -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],[0.7.9-20111117],[https://savannah.gnu.org/bugs/?func=addbug&group=gforth])
+AC_INIT([gforth],[0.7.9-20120627],[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 17, 2011"
+UPDATED="June 27, 2012"
 AC_SUBST(UPDATED)
 AC_CONFIG_HEADERS(engine/config.h)
 
@@ -127,7 +127,18 @@ else
   NO_CROSS="#"
 fi])
 
+AC_ARG_WITH(arch,
+	AC_HELP_STRING([--with-arch=<arch>],
+			[  Build gforth binaries with <arch> postfix]),
+[if test "$withval" = "no"; then
+  ARCH=""
+else
+  ARCH=-${withval}
+fi])
+AC_SUBST(ARCH)
+
 #variables mentioned in INSTALL
+AC_ARG_VAR(SH, [The shell])
 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).])
 AC_ARG_VAR(STACK_CACHE_REGS, [number of registers in the maximum stack cache state for gforth-fast and gforth-native (default platform-dependent).])
@@ -176,6 +187,8 @@ AC_PROG_CC
 
 test "$GCC" = "yes" || AC_MSG_ERROR(Gforth uses GNU C extensions and requires GCC 2.0 or higher)
 
+test "x$SH" = "x" && SH="/bin/sh"
+
 AC_MSG_CHECKING([whether to use two dispatches per conditional branch])
 test x$condbranch_opt = x && 
 if ($CC -v 2>&1 |grep 'gcc version 3' >/dev/null); then
@@ -185,7 +198,9 @@ else
 fi
 AC_MSG_RESULT($condbranch_opt)
 AC_SUBST(condbranch_opt)
+AC_SUBST(host_cpu)
 
+AC_SUBST(SH)
 AC_SUBST(CC)
 AC_SUBST(GCC_LD)
 AC_SUBST(DEBUGFLAG)
@@ -198,6 +213,7 @@ AC_SUBST(engine_fast2)
 AC_SUBST(no_dynamic)
 AC_SUBST(image_i)
 AC_SUBST(signals_o)
+AC_SUBST(mi_prefix)
 
 #this is used to disable some (not generally essential) part of the
 #Makefile that some makes don't grok.  It would be better to test for
@@ -209,14 +225,18 @@ test "$make_type" = "GNU Make" && GNUMAK
 AC_MSG_RESULT($make_type)
 AC_SUBST(GNUMAKE)
 
-AC_MSG_CHECKING([whether the linker accepts -export-dynamic])
-OLDLDFLAGS=$LDFLAGS
-LDFLAGS="$LDFLAGS -export-dynamic"
-dnl AC_TRY_LINK gives false positive on rs6000-ibm-aix4.2.1.0
-dnl AC_TRY_LINK(,,ac_export_dynamic=yes,ac_export_dynamic=no)
-AC_TRY_RUN(main(){exit(0);},ac_export_dynamic=yes,ac_export_dynamic=no,ac_export_dynamic=no)
-test $ac_export_dynamic = yes|| LDFLAGS=$OLDLDFLAGS
-AC_MSG_RESULT($ac_export_dynamic)
+if test "$ac_export_dynamic" != yes; then
+  AC_MSG_CHECKING([whether the linker accepts -export-dynamic])
+  OLDLDFLAGS=$LDFLAGS
+  LDFLAGS="$LDFLAGS -export-dynamic"
+  dnl AC_TRY_LINK gives false positive on rs6000-ibm-aix4.2.1.0
+  dnl AC_TRY_LINK(,,ac_export_dynamic=yes,ac_export_dynamic=no)
+  AC_TRY_RUN(main(){exit(0);},ac_export_dynamic=yes,ac_export_dynamic=no,ac_export_dynamic=no)
+  test $ac_export_dynamic = yes|| LDFLAGS=$OLDLDFLAGS
+  AC_MSG_RESULT($ac_export_dynamic)
+else
+  LDFLAGS="$LDFLAGS -export-dynamic"
+fi
 
 #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'
@@ -690,10 +710,12 @@ AC_DEFINE_UNQUOTED(MAYBE_UNUSED,$MAYBE_U
 AC_MSG_RESULT($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_CACHE_CHECK([whether gcc understands '__thread'], [ac_cv_thread],
+     [AC_TRY_COMPILE(,[extern __thread int foo;],
+                        [ac_cv_thread=yes],
+                        [ac_cv_thread=no])])
+test x$ac_cv_thread = xyes && PER_THREAD='__thread'
 AC_DEFINE_UNQUOTED(PER_THREAD,$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])
@@ -910,6 +932,13 @@ dnl This check is just for making later
 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)
+dnl ,LIB_SUFFIX=.la,LIB_SUFFIX=.so)
+if test "x$ac_cv_lib_ltdl_lt_dlinit" = xyes; then
+  LIB_SUFFIX=.la
+else
+  LIB_SUFFIX=.so
+fi
+AC_SUBST(LIB_SUFFIX)
 AC_CHECK_LIB(rt,clock_gettime)
 
 if test -n "$GNU_LIBTOOL" -a $ac_cv_lib_ltdl_lt_dlinit = yes; then
@@ -963,7 +992,7 @@ if test "$host_os" != "nextstep3"
 then
 	AC_FUNC_MEMCMP
 fi
-AC_REPLACE_FUNCS(memmove strtoul pow10 strerror strsignal atanh)
+AC_REPLACE_FUNCS(memmove strtoul pow10 sincos strerror strsignal atanh)
 AC_FUNC_FSEEKO
 AC_CHECK_FUNCS(ftello dlopen sys_siglist getrusage nanosleep clock_gettime)
 AC_CHECK_TYPES(stack_t,,,[#include <signal.h>])
@@ -996,7 +1025,7 @@ if test -z "$GFORTH"; then
 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_FI1=`echo $GFORTH_FI | sed -e s/lib[64]*/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
@@ -1022,6 +1051,7 @@ vmgen
 machpc.fs
 envos.fs
 preforth
+libforth
 gforthker
 engine/Makefile
 engine/libcc.h
@@ -1032,6 +1062,7 @@ chmod +x gforthmi
 chmod +x vmgen
 chmod +x build-ec
 chmod +x preforth
+chmod +x libforth
 chmod +x gforthker
 test -d kernel||mkdir kernel
 if test $srcdir != "."; then ln -sf $srcdir/gforth.el .; fi