Merge 8.5. Sync */tcl.m4 with Tcl.

3 files changed, 129 insertions, 127 deletions

diff --git a/unix/configure.in b/unix/configure.in
index 7954e30..78dd688 100644
--- a/unix/configure.in
+++ b/unix/configure.in
@@ -17,8 +17,9 @@ m4_ifdef([SC_USE_CONFIG_HEADERS], [
     /* Undef unused package specific autoheader defines so that we can
      * include both tclConfig.h and tkConfig.h at the same time: */
     /* override */ #undef PACKAGE_NAME
-    /* override */ #undef PACKAGE_STRING
     /* override */ #undef PACKAGE_TARNAME
+    /* override */ #undef PACKAGE_VERSION
+    /* override */ #undef PACKAGE_STRING
     #endif /* _TKCONFIG */])
 ])
 
diff --git a/unix/tcl.m4 b/unix/tcl.m4
index 27b7540..1d171cb 100644
--- a/unix/tcl.m4
+++ b/unix/tcl.m4
@@ -28,7 +28,7 @@ AC_DEFUN([SC_PATH_TCLCONFIG], [
 	# we reset no_tcl in case something fails here
 	no_tcl=true
 	AC_ARG_WITH(tcl,
-	    AC_HELP_STRING([--with-tcl],
+	    AS_HELP_STRING([--with-tcl],
 		[directory containing tcl configuration (tclConfig.sh)]),
 	    with_tclconfig="${withval}")
 	AC_MSG_CHECKING([for Tcl configuration])
@@ -161,7 +161,7 @@ AC_DEFUN([SC_PATH_TKCONFIG], [
 	# we reset no_tk in case something fails here
 	no_tk=true
 	AC_ARG_WITH(tk,
-	    AC_HELP_STRING([--with-tk],
+	    AS_HELP_STRING([--with-tk],
 		[directory containing tk configuration (tkConfig.sh)]),
 	    with_tkconfig="${withval}")
 	AC_MSG_CHECKING([for Tk configuration])
@@ -508,7 +508,7 @@ AC_DEFUN([SC_BUILD_TCLSH], [
 AC_DEFUN([SC_ENABLE_SHARED], [
     AC_MSG_CHECKING([how to build libraries])
     AC_ARG_ENABLE(shared,
-	AC_HELP_STRING([--enable-shared],
+	AS_HELP_STRING([--enable-shared],
 	    [build and link with shared libraries (default: on)]),
 	[tcl_ok=$enableval], [tcl_ok=yes])
     if test "$tcl_ok" = "yes" ; then
@@ -542,7 +542,7 @@ AC_DEFUN([SC_ENABLE_FRAMEWORK], [
     if test "`uname -s`" = "Darwin" ; then
 	AC_MSG_CHECKING([how to package libraries])
 	AC_ARG_ENABLE(framework,
-	    AC_HELP_STRING([--enable-framework],
+	    AS_HELP_STRING([--enable-framework],
 		[package shared libraries in MacOSX frameworks (default: off)]),
 	    [enable_framework=$enableval], [enable_framework=no])
 	if test $enable_framework = yes; then
@@ -593,7 +593,7 @@ AC_DEFUN([SC_ENABLE_FRAMEWORK], [
 
 AC_DEFUN([SC_ENABLE_THREADS], [
     AC_ARG_ENABLE(threads,
-	AC_HELP_STRING([--enable-threads],
+	AS_HELP_STRING([--enable-threads],
 	    [build with threads (default: on)]),
 	[tcl_ok=$enableval], [tcl_ok=yes])
 
@@ -707,7 +707,7 @@ AC_DEFUN([SC_ENABLE_THREADS], [
 AC_DEFUN([SC_ENABLE_SYMBOLS], [
     AC_MSG_CHECKING([for build with symbols])
     AC_ARG_ENABLE(symbols,
-	AC_HELP_STRING([--enable-symbols],
+	AS_HELP_STRING([--enable-symbols],
 	    [build with debugging symbols (default: off)]),
 	[tcl_ok=$enableval], [tcl_ok=no])
 # FIXME: Currently, LDFLAGS_DEFAULT is not used, it should work like CFLAGS_DEFAULT.
@@ -766,7 +766,7 @@ AC_DEFUN([SC_ENABLE_SYMBOLS], [
 
 AC_DEFUN([SC_ENABLE_LANGINFO], [
     AC_ARG_ENABLE(langinfo,
-	AC_HELP_STRING([--enable-langinfo],
+	AS_HELP_STRING([--enable-langinfo],
 	    [use nl_langinfo if possible to determine encoding at startup, otherwise use old heuristic (default: on)]),
 	[langinfo_ok=$enableval], [langinfo_ok=yes])
 
@@ -777,7 +777,7 @@ AC_DEFUN([SC_ENABLE_LANGINFO], [
     AC_MSG_CHECKING([whether to use nl_langinfo])
     if test "$langinfo_ok" = "yes"; then
 	AC_CACHE_VAL(tcl_cv_langinfo_h, [
-	    AC_TRY_COMPILE([#include <langinfo.h>], [nl_langinfo(CODESET);],
+	    AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]], [[nl_langinfo(CODESET);]])],
 		    [tcl_cv_langinfo_h=yes],[tcl_cv_langinfo_h=no])])
 	AC_MSG_RESULT([$tcl_cv_langinfo_h])
 	if test $tcl_cv_langinfo_h = yes; then
@@ -818,7 +818,7 @@ AC_DEFUN([SC_ENABLE_LANGINFO], [
 AC_DEFUN([SC_CONFIG_MANPAGES], [
     AC_MSG_CHECKING([whether to use symlinks for manpages])
     AC_ARG_ENABLE(man-symlinks,
-	AC_HELP_STRING([--enable-man-symlinks],
+	AS_HELP_STRING([--enable-man-symlinks],
 	    [use symlinks for the manpages (default: off)]),
 	test "$enableval" != "no" && MAN_FLAGS="$MAN_FLAGS --symlinks",
 	enableval="no")
@@ -826,7 +826,7 @@ AC_DEFUN([SC_CONFIG_MANPAGES], [
 
     AC_MSG_CHECKING([whether to compress the manpages])
     AC_ARG_ENABLE(man-compression,
-	AC_HELP_STRING([--enable-man-compression=PROG],
+	AS_HELP_STRING([--enable-man-compression=PROG],
 	    [compress the manpages with PROG (default: off)]),
 	[case $enableval in
 	    yes) AC_MSG_ERROR([missing argument to --enable-man-compression]);;
@@ -847,7 +847,7 @@ AC_DEFUN([SC_CONFIG_MANPAGES], [
 
     AC_MSG_CHECKING([whether to add a package name suffix for the manpages])
     AC_ARG_ENABLE(man-suffix,
-	AC_HELP_STRING([--enable-man-suffix=STRING],
+	AS_HELP_STRING([--enable-man-suffix=STRING],
 	    [use STRING as a suffix to manpage file names (default: no, AC_PACKAGE_NAME if enabled without specifying STRING)]),
 	[case $enableval in
 	    yes) enableval="AC_PACKAGE_NAME" MAN_FLAGS="$MAN_FLAGS --suffix $enableval";;
@@ -998,7 +998,7 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 
     AC_MSG_CHECKING([if 64bit support is requested])
     AC_ARG_ENABLE(64bit,
-	AC_HELP_STRING([--enable-64bit],
+	AS_HELP_STRING([--enable-64bit],
 	    [enable 64bit support (default: off)]),
 	[do64bit=$enableval], [do64bit=no])
     AC_MSG_RESULT([$do64bit])
@@ -1007,7 +1007,7 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 
     AC_MSG_CHECKING([if 64bit Sparc VIS support is requested])
     AC_ARG_ENABLE(64bit-vis,
-	AC_HELP_STRING([--enable-64bit-vis],
+	AS_HELP_STRING([--enable-64bit-vis],
 	    [enable 64bit Sparc VIS support (default: off)]),
 	[do64bitVIS=$enableval], [do64bitVIS=no])
     AC_MSG_RESULT([$do64bitVIS])
@@ -1020,10 +1020,10 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
     AC_CACHE_CHECK([if compiler supports visibility "hidden"],
 	tcl_cv_cc_visibility_hidden, [
 	hold_cflags=$CFLAGS; CFLAGS="$CFLAGS -Werror"
-	AC_TRY_LINK([
+	AC_LINK_IFELSE([AC_LANG_PROGRAM([[
 	    extern __attribute__((__visibility__("hidden"))) void f(void);
-	    void f(void) {}], [f();], tcl_cv_cc_visibility_hidden=yes,
-	    tcl_cv_cc_visibility_hidden=no)
+	    void f(void) {}]], [[f();]])],[tcl_cv_cc_visibility_hidden=yes],
+	    [tcl_cv_cc_visibility_hidden=no])
 	CFLAGS=$hold_cflags])
     AS_IF([test $tcl_cv_cc_visibility_hidden = yes], [
 	AC_DEFINE(MODULE_SCOPE,
@@ -1036,7 +1036,7 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 
     AC_MSG_CHECKING([if rpath support is requested])
     AC_ARG_ENABLE(rpath,
-	AC_HELP_STRING([--disable-rpath],
+	AS_HELP_STRING([--disable-rpath],
 	    [disable rpath support (default: on)]),
 	[doRpath=$enableval], [doRpath=yes])
     AC_MSG_RESULT([$doRpath])
@@ -1196,13 +1196,13 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 	    SHLIB_LD_LIBS="${SHLIB_LD_LIBS} -Wl,--out-implib,\$[@].a"
 	    AC_CACHE_CHECK(for Cygwin version of gcc,
 		ac_cv_cygwin,
-		AC_TRY_COMPILE([
+		AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
 		#ifdef __CYGWIN__
 		    #error cygwin
 		#endif
-		], [],
-		ac_cv_cygwin=no,
-		ac_cv_cygwin=yes)
+		]], [[]])],
+		[ac_cv_cygwin=no],
+		[ac_cv_cygwin=yes])
 	    )
 	    if test "$ac_cv_cygwin" = "no"; then
 		AC_MSG_ERROR([${CC} is not a cygwin compiler.])
@@ -1391,7 +1391,7 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 		AC_CACHE_CHECK([if compiler accepts -m64 flag], tcl_cv_cc_m64, [
 		    hold_cflags=$CFLAGS
 		    CFLAGS="$CFLAGS -m64"
-		    AC_TRY_LINK(,, tcl_cv_cc_m64=yes, tcl_cv_cc_m64=no)
+		    AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[]])],[tcl_cv_cc_m64=yes],[tcl_cv_cc_m64=no])
 		    CFLAGS=$hold_cflags])
 		AS_IF([test $tcl_cv_cc_m64 = yes], [
 		    CFLAGS="$CFLAGS -m64"
@@ -1533,8 +1533,8 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 				tcl_cv_cc_arch_ppc64, [
 			    hold_cflags=$CFLAGS
 			    CFLAGS="$CFLAGS -arch ppc64 -mpowerpc64 -mcpu=G5"
-			    AC_TRY_LINK(,, tcl_cv_cc_arch_ppc64=yes,
-				    tcl_cv_cc_arch_ppc64=no)
+			    AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[]])],[tcl_cv_cc_arch_ppc64=yes],
+				    [tcl_cv_cc_arch_ppc64=no])
 			    CFLAGS=$hold_cflags])
 			AS_IF([test $tcl_cv_cc_arch_ppc64 = yes], [
 			    CFLAGS="$CFLAGS -arch ppc64 -mpowerpc64 -mcpu=G5"
@@ -1545,8 +1545,8 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 				tcl_cv_cc_arch_x86_64, [
 			    hold_cflags=$CFLAGS
 			    CFLAGS="$CFLAGS -arch x86_64"
-			    AC_TRY_LINK(,, tcl_cv_cc_arch_x86_64=yes,
-				    tcl_cv_cc_arch_x86_64=no)
+			    AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[]])],[tcl_cv_cc_arch_x86_64=yes],
+				    [tcl_cv_cc_arch_x86_64=no])
 			    CFLAGS=$hold_cflags])
 			AS_IF([test $tcl_cv_cc_arch_x86_64 = yes], [
 			    CFLAGS="$CFLAGS -arch x86_64"
@@ -1565,7 +1565,8 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 	    AC_CACHE_CHECK([if ld accepts -single_module flag], tcl_cv_ld_single_module, [
 		hold_ldflags=$LDFLAGS
 		LDFLAGS="$LDFLAGS -dynamiclib -Wl,-single_module"
-		AC_TRY_LINK(, [int i;], tcl_cv_ld_single_module=yes, tcl_cv_ld_single_module=no)
+		AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])],[tcl_cv_ld_single_module=yes],
+		    [tcl_cv_ld_single_module=no])
 		LDFLAGS=$hold_ldflags])
 	    AS_IF([test $tcl_cv_ld_single_module = yes], [
 		SHLIB_LD="${SHLIB_LD} -Wl,-single_module"
@@ -1578,8 +1579,8 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 		    tcl_cv_ld_search_paths_first, [
 		hold_ldflags=$LDFLAGS
 		LDFLAGS="$LDFLAGS -Wl,-search_paths_first"
-		AC_TRY_LINK(, [int i;], tcl_cv_ld_search_paths_first=yes,
-			tcl_cv_ld_search_paths_first=no)
+		AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])],[tcl_cv_ld_search_paths_first=yes],
+		    [tcl_cv_ld_search_paths_first=no])
 		LDFLAGS=$hold_ldflags])
 	    AS_IF([test $tcl_cv_ld_search_paths_first = yes], [
 		LDFLAGS="$LDFLAGS -Wl,-search_paths_first"
@@ -1597,7 +1598,7 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 	    PLAT_SRCS='${MAC_OSX_SRCS}'
 	    AC_MSG_CHECKING([whether to use CoreFoundation])
 	    AC_ARG_ENABLE(corefoundation,
-		AC_HELP_STRING([--enable-corefoundation],
+		AS_HELP_STRING([--enable-corefoundation],
 		    [use CoreFoundation API on MacOSX (default: on)]),
 		[tcl_corefoundation=$enableval], [tcl_corefoundation=yes])
 	    AC_MSG_RESULT([$tcl_corefoundation])
@@ -1614,10 +1615,10 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 			    eval 'hold_'$v'="$'$v'";'$v'="`echo "$'$v' "|sed -e "s/-arch ppc64 / /g" -e "s/-arch x86_64 / /g"`"'
 			done])
 		    LIBS="$LIBS -framework CoreFoundation"
-		    AC_TRY_LINK([#include <CoreFoundation/CoreFoundation.h>],
-			[CFBundleRef b = CFBundleGetMainBundle();],
-			tcl_cv_lib_corefoundation=yes,
-			tcl_cv_lib_corefoundation=no)
+		    AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <CoreFoundation/CoreFoundation.h>]],
+			[[CFBundleRef b = CFBundleGetMainBundle();]])],
+			[tcl_cv_lib_corefoundation=yes],
+			[tcl_cv_lib_corefoundation=no])
 		    AS_IF([test "$fat_32_64" = yes], [
 			for v in CFLAGS CPPFLAGS LDFLAGS; do
 			    eval $v'="$hold_'$v'"'
@@ -1634,10 +1635,10 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 			for v in CFLAGS CPPFLAGS LDFLAGS; do
 			    eval 'hold_'$v'="$'$v'";'$v'="`echo "$'$v' "|sed -e "s/-arch ppc / /g" -e "s/-arch i386 / /g"`"'
 			done
-			AC_TRY_LINK([#include <CoreFoundation/CoreFoundation.h>],
-			    [CFBundleRef b = CFBundleGetMainBundle();],
-			    tcl_cv_lib_corefoundation_64=yes,
-			    tcl_cv_lib_corefoundation_64=no)
+			AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <CoreFoundation/CoreFoundation.h>]],
+			    [[CFBundleRef b = CFBundleGetMainBundle();]])],
+			    [tcl_cv_lib_corefoundation_64=yes],
+			    [tcl_cv_lib_corefoundation_64=no])
 			for v in CFLAGS CPPFLAGS LDFLAGS; do
 			    eval $v'="$hold_'$v'"'
 			done])
@@ -1924,7 +1925,7 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 	    AC_CACHE_CHECK([for ld accepts -Bexport flag], tcl_cv_ld_Bexport, [
 		hold_ldflags=$LDFLAGS
 		LDFLAGS="$LDFLAGS -Wl,-Bexport"
-		AC_TRY_LINK(, [int i;], tcl_cv_ld_Bexport=yes, tcl_cv_ld_Bexport=no)
+		AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])],[tcl_cv_ld_Bexport=yes],[tcl_cv_ld_Bexport=no])
 	        LDFLAGS=$hold_ldflags])
 	    AS_IF([test $tcl_cv_ld_Bexport = yes], [
 		LDFLAGS="$LDFLAGS -Wl,-Bexport"
@@ -1951,7 +1952,7 @@ dnl # preprocessing tests use only CPPFLAGS.
     # Step 4: disable dynamic loading if requested via a command-line switch.
 
     AC_ARG_ENABLE(load,
-	AC_HELP_STRING([--enable-load],
+	AS_HELP_STRING([--enable-load],
 	    [allow dynamic loading and "load" command (default: on)]),
 	[tcl_ok=$enableval], [tcl_ok=yes])
     AS_IF([test "$tcl_ok" = no], [DL_OBJS=""])
@@ -2038,13 +2039,12 @@ dnl # preprocessing tests use only CPPFLAGS.
 
 	AC_CACHE_CHECK(for cast to union support,
 	    tcl_cv_cast_to_union,
-	    AC_TRY_COMPILE([],
-	    [
+	    AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[
 		  union foo { int i; double d; };
 		  union foo f = (union foo) (int) 0;
-	    ],
-	    tcl_cv_cast_to_union=yes,
-	    tcl_cv_cast_to_union=no)
+	    ]])],
+	    [tcl_cv_cast_to_union=yes],
+	    [tcl_cv_cast_to_union=no])
 	)
 	if test "$tcl_cv_cast_to_union" = "yes"; then
 	    AC_DEFINE(HAVE_CAST_TO_UNION, 1,
@@ -2119,8 +2119,8 @@ dnl # preprocessing tests use only CPPFLAGS.
 
 AC_DEFUN([SC_MISSING_POSIX_HEADERS], [
     AC_CACHE_CHECK([dirent.h], tcl_cv_dirent_h, [
-    AC_TRY_LINK([#include <sys/types.h>
-#include <dirent.h>], [
+    AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
+#include <dirent.h>]], [[
 #ifndef _POSIX_SOURCE
 #   ifdef __Lynx__
 	/*
@@ -2138,7 +2138,7 @@ d = opendir("foobar");
 entryPtr = readdir(d);
 p = entryPtr->d_name;
 closedir(d);
-], tcl_cv_dirent_h=yes, tcl_cv_dirent_h=no)])
+]])],[tcl_cv_dirent_h=yes],[tcl_cv_dirent_h=no])])
 
     if test $tcl_cv_dirent_h = no; then
 	AC_DEFINE(NO_DIRENT_H, 1, [Do we have <dirent.h>?])
@@ -2197,7 +2197,7 @@ AC_DEFUN([SC_PATH_X], [
     not_really_there=""
     if test "$no_x" = ""; then
 	if test "$x_includes" = ""; then
-	    AC_TRY_CPP([#include <X11/Xlib.h>], , not_really_there="yes")
+	    AC_PREPROC_IFELSE([AC_LANG_SOURCE([[#include <X11/Xlib.h>]])],[],[not_really_there="yes"])
 	else
 	    if test ! -r $x_includes/X11/Xlib.h; then
 		not_really_there="yes"
@@ -2207,7 +2207,7 @@ AC_DEFUN([SC_PATH_X], [
     if test "$no_x" = "yes" -o "$not_really_there" = "yes"; then
 	AC_MSG_CHECKING([for X11 header files])
 	found_xincludes="no"
-	AC_TRY_CPP([#include <X11/Xlib.h>], found_xincludes="yes", found_xincludes="no")
+	AC_PREPROC_IFELSE([AC_LANG_SOURCE([[#include <X11/Xlib.h>]])],[found_xincludes="yes"],[found_xincludes="no"])
 	if test "$found_xincludes" = "no"; then
 	    dirs="/usr/unsupported/include /usr/local/include /usr/X386/include /usr/X11R6/include /usr/X11R5/include /usr/include/X11R5 /usr/include/X11R4 /usr/openwin/include /usr/X11/include /usr/sww/include"
 	    for i in $dirs ; do
@@ -2324,15 +2324,15 @@ AC_DEFUN([SC_TIME_HANDLER], [
     AC_CHECK_FUNCS(gmtime_r localtime_r mktime)
 
     AC_CACHE_CHECK([tm_tzadj in struct tm], tcl_cv_member_tm_tzadj, [
-	AC_TRY_COMPILE([#include <time.h>], [struct tm tm; tm.tm_tzadj;],
-	    tcl_cv_member_tm_tzadj=yes, tcl_cv_member_tm_tzadj=no)])
+	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <time.h>]], [[struct tm tm; (void)tm.tm_tzadj;]])],
+	    [tcl_cv_member_tm_tzadj=yes], [tcl_cv_member_tm_tzadj=no])])
     if test $tcl_cv_member_tm_tzadj = yes ; then
 	AC_DEFINE(HAVE_TM_TZADJ, 1, [Should we use the tm_tzadj field of struct tm?])
     fi
 
     AC_CACHE_CHECK([tm_gmtoff in struct tm], tcl_cv_member_tm_gmtoff, [
-	AC_TRY_COMPILE([#include <time.h>], [struct tm tm; (void)tm.tm_gmtoff;],
-	    tcl_cv_member_tm_gmtoff=yes, tcl_cv_member_tm_gmtoff=no)])
+	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <time.h>]], [[struct tm tm; (void)tm.tm_gmtoff;]])],
+	    [tcl_cv_member_tm_gmtoff=yes], [tcl_cv_member_tm_gmtoff=no])])
     if test $tcl_cv_member_tm_gmtoff = yes ; then
 	AC_DEFINE(HAVE_TM_GMTOFF, 1, [Should we use the tm_gmtoff field of struct tm?])
     fi
@@ -2342,11 +2342,11 @@ AC_DEFUN([SC_TIME_HANDLER], [
     # (like convex) have timezone functions, etc.
     #
     AC_CACHE_CHECK([long timezone variable], tcl_cv_timezone_long, [
-	AC_TRY_COMPILE([#include <time.h>],
-	    [extern long timezone;
+	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <time.h>]],
+	[[extern long timezone;
 	    timezone += 1;
-	    exit (0);],
-	    tcl_cv_timezone_long=yes, tcl_cv_timezone_long=no)])
+	    exit (0);]])],
+	    [tcl_cv_timezone_long=yes], [tcl_cv_timezone_long=no])])
     if test $tcl_cv_timezone_long = yes ; then
 	AC_DEFINE(HAVE_TIMEZONE_VAR, 1, [Should we use the global timezone variable?])
     else
@@ -2354,11 +2354,11 @@ AC_DEFUN([SC_TIME_HANDLER], [
 	# On some systems (eg IRIX 6.2), timezone is a time_t and not a long.
 	#
 	AC_CACHE_CHECK([time_t timezone variable], tcl_cv_timezone_time, [
-	    AC_TRY_COMPILE([#include <time.h>],
-		[extern time_t timezone;
+	    AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <time.h>]],
+	    [[extern time_t timezone;
 		timezone += 1;
-		exit (0);],
-		tcl_cv_timezone_time=yes, tcl_cv_timezone_time=no)])
+		exit (0);]])],
+		[tcl_cv_timezone_time=yes], [tcl_cv_timezone_time=no])])
 	if test $tcl_cv_timezone_time = yes ; then
 	    AC_DEFINE(HAVE_TIMEZONE_VAR, 1, [Should we use the global timezone variable?])
 	fi
@@ -2369,8 +2369,8 @@ AC_DEFUN([SC_TIME_HANDLER], [
 # SC_TCL_LINK_LIBS
 #
 #	Search for the libraries needed to link the Tcl shell.
-#	Things like the math library (-lm) and socket stuff (-lsocket vs.
-#	-lnsl) are dealt with here.
+#	Things like the math library (-lm), socket stuff (-lsocket vs.
+#	-lnsl), zlib (-lz) and libtommath (-ltommath) are dealt with here.
 #
 # Arguments:
 #	None.
@@ -2507,14 +2507,14 @@ AC_DEFUN([SC_TCL_64BIT_FLAGS], [
     AC_CACHE_VAL(tcl_cv_type_64bit,[
 	tcl_cv_type_64bit=none
 	# See if the compiler knows natively about __int64
-	AC_TRY_COMPILE(,[__int64 value = (__int64) 0;],
-	    tcl_type_64bit=__int64, tcl_type_64bit="long long")
+	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[__int64 value = (__int64) 0;]])],
+	    [tcl_type_64bit=__int64], [tcl_type_64bit="long long"])
 	# See if we should use long anyway  Note that we substitute in the
 	# type that is our current guess for a 64-bit type inside this check
 	# program, so it should be modified only carefully...
-        AC_TRY_COMPILE(,[switch (0) {
-            case 1: case (sizeof(]${tcl_type_64bit}[)==sizeof(long)): ;
-        }],tcl_cv_type_64bit=${tcl_type_64bit})])
+        AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[switch (0) {
+            case 1: case (sizeof(${tcl_type_64bit})==sizeof(long)): ;
+        }]])],[tcl_cv_type_64bit=${tcl_type_64bit}],[])])
     if test "${tcl_cv_type_64bit}" = none ; then
 	AC_DEFINE(TCL_WIDE_INT_IS_LONG, 1, [Are wide integers to be implemented with C 'long's?])
 	AC_MSG_RESULT([using long])
@@ -2525,26 +2525,26 @@ AC_DEFUN([SC_TCL_64BIT_FLAGS], [
 
 	# Now check for auxiliary declarations
 	AC_CACHE_CHECK([for struct dirent64], tcl_cv_struct_dirent64,[
-	    AC_TRY_COMPILE([#include <sys/types.h>
-#include <dirent.h>],[struct dirent64 p;],
-		tcl_cv_struct_dirent64=yes,tcl_cv_struct_dirent64=no)])
+	    AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
+#include <dirent.h>]], [[struct dirent64 p;]])],
+		[tcl_cv_struct_dirent64=yes],[tcl_cv_struct_dirent64=no])])
 	if test "x${tcl_cv_struct_dirent64}" = "xyes" ; then
 	    AC_DEFINE(HAVE_STRUCT_DIRENT64, 1, [Is 'struct dirent64' in <sys/types.h>?])
 	fi
 
 	AC_CACHE_CHECK([for DIR64], tcl_cv_DIR64,[
-	    AC_TRY_COMPILE([#include <sys/types.h>
-#include <dirent.h>],[struct dirent64 *p; DIR64 d = opendir64(".");
-            p = readdir64(d); rewinddir64(d); closedir64(d);],
-		tcl_cv_DIR64=yes,tcl_cv_DIR64=no)])
+	    AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
+#include <dirent.h>]], [[struct dirent64 *p; DIR64 d = opendir64(".");
+            p = readdir64(d); rewinddir64(d); closedir64(d);]])],
+		[tcl_cv_DIR64=yes], [tcl_cv_DIR64=no])])
 	if test "x${tcl_cv_DIR64}" = "xyes" ; then
 	    AC_DEFINE(HAVE_DIR64, 1, [Is 'DIR64' in <sys/types.h>?])
 	fi
 
 	AC_CACHE_CHECK([for struct stat64], tcl_cv_struct_stat64,[
-	    AC_TRY_COMPILE([#include <sys/stat.h>],[struct stat64 p;
-],
-		tcl_cv_struct_stat64=yes,tcl_cv_struct_stat64=no)])
+	    AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/stat.h>]], [[struct stat64 p;
+]])],
+		[tcl_cv_struct_stat64=yes], [tcl_cv_struct_stat64=no])])
 	if test "x${tcl_cv_struct_stat64}" = "xyes" ; then
 	    AC_DEFINE(HAVE_STRUCT_STAT64, 1, [Is 'struct stat64' in <sys/stat.h>?])
 	fi
@@ -2552,9 +2552,9 @@ AC_DEFUN([SC_TCL_64BIT_FLAGS], [
 	AC_CHECK_FUNCS(open64 lseek64)
 	AC_MSG_CHECKING([for off64_t])
 	AC_CACHE_VAL(tcl_cv_type_off64_t,[
-	    AC_TRY_COMPILE([#include <sys/types.h>],[off64_t offset;
-],
-		tcl_cv_type_off64_t=yes,tcl_cv_type_off64_t=no)])
+	    AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>]], [[off64_t offset;
+]])],
+		[tcl_cv_type_off64_t=yes], [tcl_cv_type_off64_t=no])])
 	dnl Define HAVE_TYPE_OFF64_T only when the off64_t type and the
 	dnl functions lseek64 and open64 are defined.
 	if test "x${tcl_cv_type_off64_t}" = "xyes" && \
@@ -2587,7 +2587,7 @@ AC_DEFUN([SC_TCL_64BIT_FLAGS], [
 
 AC_DEFUN([SC_TCL_CFG_ENCODING], [
     AC_ARG_WITH(encoding,
-	AC_HELP_STRING([--with-encoding],
+	AS_HELP_STRING([--with-encoding],
 	    [encoding for configuration values (default: iso8859-1)]),
 	with_tcencoding=${withval})
 
@@ -2620,11 +2620,11 @@ AC_DEFUN([SC_TCL_CHECK_BROKEN_FUNC],[
     AC_CHECK_FUNC($1, tcl_ok=1, tcl_ok=0)
     if test ["$tcl_ok"] = 1; then
 	AC_CACHE_CHECK([proper ]$1[ implementation], [tcl_cv_]$1[_unbroken],
-	    AC_TRY_RUN([[
+	    AC_RUN_IFELSE([AC_LANG_SOURCE([[[
 #include <stdlib.h>
 #include <string.h>
-int main() {]$2[}]],[tcl_cv_]$1[_unbroken]=ok,
-		[tcl_cv_]$1[_unbroken]=broken,[tcl_cv_]$1[_unbroken]=unknown))
+int main() {]$2[}]]])],[tcl_cv_$1_unbroken=ok],
+		[tcl_cv_$1_unbroken=broken],[tcl_cv_$1_unbroken=unknown]))
 	if test ["$tcl_cv_]$1[_unbroken"] = "ok"; then
 	    tcl_ok=1
 	else
@@ -2669,9 +2669,9 @@ AC_DEFUN([SC_TCL_GETHOSTBYADDR_R_DECL], [AC_CHECK_DECLS(gethostbyaddr_r, [
 
 AC_DEFUN([SC_TCL_GETHOSTBYADDR_R_TYPE], [AC_CHECK_FUNC(gethostbyaddr_r, [
     AC_CACHE_CHECK([for gethostbyaddr_r with 7 args], tcl_cv_api_gethostbyaddr_r_7, [
-    AC_TRY_COMPILE([
+    AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
 	#include <netdb.h>
-    ], [
+    ]], [[
 	char *addr;
 	int length;
 	int type;
@@ -2682,16 +2682,16 @@ AC_DEFUN([SC_TCL_GETHOSTBYADDR_R_TYPE], [AC_CHECK_FUNC(gethostbyaddr_r, [
 
 	(void) gethostbyaddr_r(addr, length, type, result, buffer, buflen,
 			       &h_errnop);
-    ], tcl_cv_api_gethostbyaddr_r_7=yes, tcl_cv_api_gethostbyaddr_r_7=no)])
+    ]])],[tcl_cv_api_gethostbyaddr_r_7=yes],[tcl_cv_api_gethostbyaddr_r_7=no])])
     tcl_ok=$tcl_cv_api_gethostbyaddr_r_7
     if test "$tcl_ok" = yes; then
 	AC_DEFINE(HAVE_GETHOSTBYADDR_R_7, 1,
 	    [Define to 1 if gethostbyaddr_r takes 7 args.])
     else
 	AC_CACHE_CHECK([for gethostbyaddr_r with 8 args], tcl_cv_api_gethostbyaddr_r_8, [
-	AC_TRY_COMPILE([
+	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
 	    #include <netdb.h>
-	], [
+	]], [[
 	    char *addr;
 	    int length;
 	    int type;
@@ -2702,7 +2702,7 @@ AC_DEFUN([SC_TCL_GETHOSTBYADDR_R_TYPE], [AC_CHECK_FUNC(gethostbyaddr_r, [
 
 	    (void) gethostbyaddr_r(addr, length, type, result, buffer, buflen,
 				   &resultp, &h_errnop);
-	], tcl_cv_api_gethostbyaddr_r_8=yes, tcl_cv_api_gethostbyaddr_r_8=no)])
+	]])],[tcl_cv_api_gethostbyaddr_r_8=yes],[tcl_cv_api_gethostbyaddr_r_8=no])])
 	tcl_ok=$tcl_cv_api_gethostbyaddr_r_8
 	if test "$tcl_ok" = yes; then
 	    AC_DEFINE(HAVE_GETHOSTBYADDR_R_8, 1,
@@ -2750,9 +2750,9 @@ AC_DEFUN([SC_TCL_GETHOSTBYNAME_R_DECL], [AC_CHECK_DECLS(gethostbyname_r, [
 
 AC_DEFUN([SC_TCL_GETHOSTBYNAME_R_TYPE], [AC_CHECK_FUNC(gethostbyname_r, [
     AC_CACHE_CHECK([for gethostbyname_r with 6 args], tcl_cv_api_gethostbyname_r_6, [
-    AC_TRY_COMPILE([
+    AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
 	#include <netdb.h>
-    ], [
+    ]], [[
 	char *name;
 	struct hostent *he, *res;
 	char buffer[2048];
@@ -2760,16 +2760,16 @@ AC_DEFUN([SC_TCL_GETHOSTBYNAME_R_TYPE], [AC_CHECK_FUNC(gethostbyname_r, [
 	int h_errnop;
 
 	(void) gethostbyname_r(name, he, buffer, buflen, &res, &h_errnop);
-    ], tcl_cv_api_gethostbyname_r_6=yes, tcl_cv_api_gethostbyname_r_6=no)])
+    ]])],[tcl_cv_api_gethostbyname_r_6=yes],[tcl_cv_api_gethostbyname_r_6=no])])
     tcl_ok=$tcl_cv_api_gethostbyname_r_6
     if test "$tcl_ok" = yes; then
 	AC_DEFINE(HAVE_GETHOSTBYNAME_R_6, 1,
 	    [Define to 1 if gethostbyname_r takes 6 args.])
     else
 	AC_CACHE_CHECK([for gethostbyname_r with 5 args], tcl_cv_api_gethostbyname_r_5, [
-	AC_TRY_COMPILE([
+	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
 	    #include <netdb.h>
-	], [
+	]], [[
 	    char *name;
 	    struct hostent *he;
 	    char buffer[2048];
@@ -2777,22 +2777,22 @@ AC_DEFUN([SC_TCL_GETHOSTBYNAME_R_TYPE], [AC_CHECK_FUNC(gethostbyname_r, [
 	    int h_errnop;
 
 	    (void) gethostbyname_r(name, he, buffer, buflen, &h_errnop);
-	], tcl_cv_api_gethostbyname_r_5=yes, tcl_cv_api_gethostbyname_r_5=no)])
+	]])],[tcl_cv_api_gethostbyname_r_5=yes],[tcl_cv_api_gethostbyname_r_5=no])])
 	tcl_ok=$tcl_cv_api_gethostbyname_r_5
 	if test "$tcl_ok" = yes; then
 	    AC_DEFINE(HAVE_GETHOSTBYNAME_R_5, 1,
 		[Define to 1 if gethostbyname_r takes 5 args.])
 	else
 	    AC_CACHE_CHECK([for gethostbyname_r with 3 args], tcl_cv_api_gethostbyname_r_3, [
-	    AC_TRY_COMPILE([
+	    AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
 		#include <netdb.h>
-	    ], [
+	    ]], [[
 		char *name;
 		struct hostent *he;
 		struct hostent_data data;
 
 		(void) gethostbyname_r(name, he, &data);
-	    ], tcl_cv_api_gethostbyname_r_3=yes, tcl_cv_api_gethostbyname_r_3=no)])
+	    ]])],[tcl_cv_api_gethostbyname_r_3=yes],[tcl_cv_api_gethostbyname_r_3=no])])
 	    tcl_ok=$tcl_cv_api_gethostbyname_r_3
 	    if test "$tcl_ok" = yes; then
 		AC_DEFINE(HAVE_GETHOSTBYNAME_R_3, 1,
@@ -2826,34 +2826,34 @@ AC_DEFUN([SC_TCL_GETHOSTBYNAME_R_TYPE], [AC_CHECK_FUNC(gethostbyname_r, [
 
 AC_DEFUN([SC_TCL_GETPWUID_R], [AC_CHECK_FUNC(getpwuid_r, [
     AC_CACHE_CHECK([for getpwuid_r with 5 args], tcl_cv_api_getpwuid_r_5, [
-    AC_TRY_COMPILE([
+    AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
 	#include <sys/types.h>
 	#include <pwd.h>
-    ], [
+    ]], [[
 	uid_t uid;
 	struct passwd pw, *pwp;
 	char buf[512];
 	int buflen = 512;
 
 	(void) getpwuid_r(uid, &pw, buf, buflen, &pwp);
-    ], tcl_cv_api_getpwuid_r_5=yes, tcl_cv_api_getpwuid_r_5=no)])
+    ]])],[tcl_cv_api_getpwuid_r_5=yes],[tcl_cv_api_getpwuid_r_5=no])])
     tcl_ok=$tcl_cv_api_getpwuid_r_5
     if test "$tcl_ok" = yes; then
 	AC_DEFINE(HAVE_GETPWUID_R_5, 1,
 	    [Define to 1 if getpwuid_r takes 5 args.])
     else
 	AC_CACHE_CHECK([for getpwuid_r with 4 args], tcl_cv_api_getpwuid_r_4, [
-	AC_TRY_COMPILE([
+	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
 	    #include <sys/types.h>
 	    #include <pwd.h>
-	], [
+	]], [[
 	    uid_t uid;
 	    struct passwd pw;
 	    char buf[512];
 	    int buflen = 512;
 
 	    (void)getpwnam_r(uid, &pw, buf, buflen);
-	], tcl_cv_api_getpwuid_r_4=yes, tcl_cv_api_getpwuid_r_4=no)])
+	]])],[tcl_cv_api_getpwuid_r_4=yes],[tcl_cv_api_getpwuid_r_4=no])])
 	tcl_ok=$tcl_cv_api_getpwuid_r_4
 	if test "$tcl_ok" = yes; then
 	    AC_DEFINE(HAVE_GETPWUID_R_4, 1,
@@ -2886,34 +2886,34 @@ AC_DEFUN([SC_TCL_GETPWUID_R], [AC_CHECK_FUNC(getpwuid_r, [
 
 AC_DEFUN([SC_TCL_GETPWNAM_R], [AC_CHECK_FUNC(getpwnam_r, [
     AC_CACHE_CHECK([for getpwnam_r with 5 args], tcl_cv_api_getpwnam_r_5, [
-    AC_TRY_COMPILE([
+    AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
 	#include <sys/types.h>
 	#include <pwd.h>
-    ], [
+    ]], [[
 	char *name;
 	struct passwd pw, *pwp;
 	char buf[512];
 	int buflen = 512;
 
 	(void) getpwnam_r(name, &pw, buf, buflen, &pwp);
-    ], tcl_cv_api_getpwnam_r_5=yes, tcl_cv_api_getpwnam_r_5=no)])
+    ]])],[tcl_cv_api_getpwnam_r_5=yes],[tcl_cv_api_getpwnam_r_5=no])])
     tcl_ok=$tcl_cv_api_getpwnam_r_5
     if test "$tcl_ok" = yes; then
 	AC_DEFINE(HAVE_GETPWNAM_R_5, 1,
 	    [Define to 1 if getpwnam_r takes 5 args.])
     else
 	AC_CACHE_CHECK([for getpwnam_r with 4 args], tcl_cv_api_getpwnam_r_4, [
-	AC_TRY_COMPILE([
+	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
 	    #include <sys/types.h>
 	    #include <pwd.h>
-	], [
+	]], [[
 	    char *name;
 	    struct passwd pw;
 	    char buf[512];
 	    int buflen = 512;
 
 	    (void)getpwnam_r(name, &pw, buf, buflen);
-	], tcl_cv_api_getpwnam_r_4=yes, tcl_cv_api_getpwnam_r_4=no)])
+	]])],[tcl_cv_api_getpwnam_r_4=yes],[tcl_cv_api_getpwnam_r_4=no])])
 	tcl_ok=$tcl_cv_api_getpwnam_r_4
 	if test "$tcl_ok" = yes; then
 	    AC_DEFINE(HAVE_GETPWNAM_R_4, 1,
@@ -2946,34 +2946,34 @@ AC_DEFUN([SC_TCL_GETPWNAM_R], [AC_CHECK_FUNC(getpwnam_r, [
 
 AC_DEFUN([SC_TCL_GETGRGID_R], [AC_CHECK_FUNC(getgrgid_r, [
     AC_CACHE_CHECK([for getgrgid_r with 5 args], tcl_cv_api_getgrgid_r_5, [
-    AC_TRY_COMPILE([
+    AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
 	#include <sys/types.h>
 	#include <grp.h>
-    ], [
+    ]], [[
 	gid_t gid;
 	struct group gr, *grp;
 	char buf[512];
 	int buflen = 512;
 
 	(void) getgrgid_r(gid, &gr, buf, buflen, &grp);
-    ], tcl_cv_api_getgrgid_r_5=yes, tcl_cv_api_getgrgid_r_5=no)])
+    ]])],[tcl_cv_api_getgrgid_r_5=yes],[tcl_cv_api_getgrgid_r_5=no])])
     tcl_ok=$tcl_cv_api_getgrgid_r_5
     if test "$tcl_ok" = yes; then
 	AC_DEFINE(HAVE_GETGRGID_R_5, 1,
 	    [Define to 1 if getgrgid_r takes 5 args.])
     else
 	AC_CACHE_CHECK([for getgrgid_r with 4 args], tcl_cv_api_getgrgid_r_4, [
-	AC_TRY_COMPILE([
+	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
 	    #include <sys/types.h>
 	    #include <grp.h>
-	], [
+	]], [[
 	    gid_t gid;
 	    struct group gr;
 	    char buf[512];
 	    int buflen = 512;
 
 	    (void)getgrgid_r(gid, &gr, buf, buflen);
-	], tcl_cv_api_getgrgid_r_4=yes, tcl_cv_api_getgrgid_r_4=no)])
+	]])],[tcl_cv_api_getgrgid_r_4=yes],[tcl_cv_api_getgrgid_r_4=no])])
 	tcl_ok=$tcl_cv_api_getgrgid_r_4
 	if test "$tcl_ok" = yes; then
 	    AC_DEFINE(HAVE_GETGRGID_R_4, 1,
@@ -3006,34 +3006,34 @@ AC_DEFUN([SC_TCL_GETGRGID_R], [AC_CHECK_FUNC(getgrgid_r, [
 
 AC_DEFUN([SC_TCL_GETGRNAM_R], [AC_CHECK_FUNC(getgrnam_r, [
     AC_CACHE_CHECK([for getgrnam_r with 5 args], tcl_cv_api_getgrnam_r_5, [
-    AC_TRY_COMPILE([
+    AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
 	#include <sys/types.h>
 	#include <grp.h>
-    ], [
+    ]], [[
 	char *name;
 	struct group gr, *grp;
 	char buf[512];
 	int buflen = 512;
 
 	(void) getgrnam_r(name, &gr, buf, buflen, &grp);
-    ], tcl_cv_api_getgrnam_r_5=yes, tcl_cv_api_getgrnam_r_5=no)])
+    ]])],[tcl_cv_api_getgrnam_r_5=yes],[tcl_cv_api_getgrnam_r_5=no])])
     tcl_ok=$tcl_cv_api_getgrnam_r_5
     if test "$tcl_ok" = yes; then
 	AC_DEFINE(HAVE_GETGRNAM_R_5, 1,
 	    [Define to 1 if getgrnam_r takes 5 args.])
     else
 	AC_CACHE_CHECK([for getgrnam_r with 4 args], tcl_cv_api_getgrnam_r_4, [
-	AC_TRY_COMPILE([
+	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
 	    #include <sys/types.h>
 	    #include <grp.h>
-	], [
+	]], [[
 	    char *name;
 	    struct group gr;
 	    char buf[512];
 	    int buflen = 512;
 
 	    (void)getgrnam_r(name, &gr, buf, buflen);
-	], tcl_cv_api_getgrnam_r_4=yes, tcl_cv_api_getgrnam_r_4=no)])
+	]])],[tcl_cv_api_getgrnam_r_4=yes],[tcl_cv_api_getgrnam_r_4=no])])
 	tcl_ok=$tcl_cv_api_getgrnam_r_4
 	if test "$tcl_ok" = yes; then
 	    AC_DEFINE(HAVE_GETGRNAM_R_4, 1,
diff --git a/unix/tkConfig.h.in b/unix/tkConfig.h.in
index 72d97c8..03599a1 100644
--- a/unix/tkConfig.h.in
+++ b/unix/tkConfig.h.in
@@ -251,6 +251,7 @@
     /* Undef unused package specific autoheader defines so that we can
      * include both tclConfig.h and tkConfig.h at the same time: */
     /* override */ #undef PACKAGE_NAME
-    /* override */ #undef PACKAGE_STRING
     /* override */ #undef PACKAGE_TARNAME
+    /* override */ #undef PACKAGE_VERSION
+    /* override */ #undef PACKAGE_STRING
     #endif /* _TKCONFIG */