* win/configure:

	* win/configure.in: Generate error when attempting
	to build under Cygwin. The Cygwin port of Tcl/Tk
	does not build and people are filing bug reports
	under the mistaken impression that someone is
	actually maintaining the Cygwin port. A post to
 	comp.lang.tcl asking someone to volunteer as an
	area maintainer has generated no results.
	Closing bugs 680840, 630199, and 634772 and
	marking as "Won't fix".


FossilOrigin-Name: 9ae2332ed04d667e809bc7d40d08bc484899816e

1 files changed, 48 insertions, 47 deletions

diff --git a/win/configure b/win/configure
index 064db16..9b5747e 100755
--- a/win/configure
+++ b/win/configure
@@ -972,14 +972,15 @@ echo "$ac_t""$ac_cv_cygwin" 1>&6
 CYGWIN=
 test "$ac_cv_cygwin" = yes && CYGWIN=yes
 
-#if test "$ac_cv_cygwin" = "yes" ; then
-#    AC_MSG_ERROR([Compiling with the Cygwin version of gcc is not supported.
-#    Use the Mingw version of gcc from www.mingw.org instead.])
-#fi
+if test "$ac_cv_cygwin" = "yes" ; then
+    { echo "configure: error: Compiling under Cygwin is not currently supported.
+A maintainer for the Cygwin port of Tcl/Tk is needed. See the README
+file for information about building with Mingw." 1>&2; exit 1; }
+fi
 
 
 echo $ac_n "checking for SEH support in compiler""... $ac_c" 1>&6
-echo "configure:983: checking for SEH support in compiler" >&5
+echo "configure:984: checking for SEH support in compiler" >&5
 if eval "test \"`echo '$''{'tcl_cv_seh'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -987,7 +988,7 @@ else
   tcl_cv_seh=no
 else
   cat > conftest.$ac_ext <<EOF
-#line 991 "configure"
+#line 992 "configure"
 #include "confdefs.h"
 
 #define WIN32_LEAN_AND_MEAN
@@ -1006,7 +1007,7 @@ int main(int argc, char** argv) {
 }
 
 EOF
-if { (eval echo configure:1010: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:1011: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   tcl_cv_seh=yes
 else
@@ -1036,12 +1037,12 @@ fi
 # sufficient for getting the current code to work.
 #
 echo $ac_n "checking for EXCEPTION_DISPOSITION support in include files""... $ac_c" 1>&6
-echo "configure:1040: checking for EXCEPTION_DISPOSITION support in include files" >&5
+echo "configure:1041: checking for EXCEPTION_DISPOSITION support in include files" >&5
 if eval "test \"`echo '$''{'tcl_cv_eh_disposition'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1045 "configure"
+#line 1046 "configure"
 #include "confdefs.h"
 
 #define WIN32_LEAN_AND_MEAN
@@ -1054,7 +1055,7 @@ int main() {
 
 ; return 0; }
 EOF
-if { (eval echo configure:1058: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1059: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_cv_eh_disposition=yes
 else
@@ -1080,12 +1081,12 @@ fi
 # typedefs like LPFN_ACCEPT and friends.
 #
 echo $ac_n "checking for LPFN_ACCEPT support in winsock2.h""... $ac_c" 1>&6
-echo "configure:1084: checking for LPFN_ACCEPT support in winsock2.h" >&5
+echo "configure:1085: checking for LPFN_ACCEPT support in winsock2.h" >&5
 if eval "test \"`echo '$''{'tcl_cv_lpfn_decls'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1089 "configure"
+#line 1090 "configure"
 #include "confdefs.h"
 
 #define WIN32_LEAN_AND_MEAN
@@ -1099,7 +1100,7 @@ int main() {
 
 ; return 0; }
 EOF
-if { (eval echo configure:1103: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1104: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_cv_lpfn_decls=yes
 else
@@ -1125,12 +1126,12 @@ fi
 # used by mingw and cygwin is known to do this.
 
 echo $ac_n "checking for winnt.h that ignores VOID define""... $ac_c" 1>&6
-echo "configure:1129: checking for winnt.h that ignores VOID define" >&5
+echo "configure:1130: checking for winnt.h that ignores VOID define" >&5
 if eval "test \"`echo '$''{'tcl_cv_winnt_ignore_void'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1134 "configure"
+#line 1135 "configure"
 #include "confdefs.h"
 
 #define VOID void
@@ -1146,7 +1147,7 @@ int main() {
 
 ; return 0; }
 EOF
-if { (eval echo configure:1150: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1151: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_cv_winnt_ignore_void=yes
 else
@@ -1178,12 +1179,12 @@ fi
 # call it from inline asm code.
 
 echo $ac_n "checking for alloca declaration in malloc.h""... $ac_c" 1>&6
-echo "configure:1182: checking for alloca declaration in malloc.h" >&5
+echo "configure:1183: checking for alloca declaration in malloc.h" >&5
 if eval "test \"`echo '$''{'tcl_cv_malloc_decl_alloca'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1187 "configure"
+#line 1188 "configure"
 #include "confdefs.h"
 
 #include <malloc.h>
@@ -1197,7 +1198,7 @@ int main() {
 
 ; return 0; }
 EOF
-if { (eval echo configure:1201: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1202: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_cv_malloc_decl_alloca=yes
 else
@@ -1224,12 +1225,12 @@ fi
 # warning when initializing a union member.
 
 echo $ac_n "checking for cast to union support""... $ac_c" 1>&6
-echo "configure:1228: checking for cast to union support" >&5
+echo "configure:1229: checking for cast to union support" >&5
 if eval "test \"`echo '$''{'tcl_cv_cast_to_union'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1233 "configure"
+#line 1234 "configure"
 #include "confdefs.h"
 
 int main() {
@@ -1239,7 +1240,7 @@ int main() {
 
 ; return 0; }
 EOF
-if { (eval echo configure:1243: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1244: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   tcl_cv_cast_to_union=yes
 else
@@ -1266,13 +1267,13 @@ fi
 #--------------------------------------------------------------------
 
 echo $ac_n "checking for object suffix""... $ac_c" 1>&6
-echo "configure:1270: checking for object suffix" >&5
+echo "configure:1271: checking for object suffix" >&5
 if eval "test \"`echo '$''{'ac_cv_objext'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   rm -f conftest*
 echo 'int i = 1;' > conftest.$ac_ext
-if { (eval echo configure:1276: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1277: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   for ac_file in conftest.*; do
     case $ac_file in
     *.c) ;;
@@ -1290,19 +1291,19 @@ OBJEXT=$ac_cv_objext
 ac_objext=$ac_cv_objext
 
 echo $ac_n "checking for mingw32 environment""... $ac_c" 1>&6
-echo "configure:1294: checking for mingw32 environment" >&5
+echo "configure:1295: checking for mingw32 environment" >&5
 if eval "test \"`echo '$''{'ac_cv_mingw32'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1299 "configure"
+#line 1300 "configure"
 #include "confdefs.h"
 
 int main() {
 return __MINGW32__;
 ; return 0; }
 EOF
-if { (eval echo configure:1306: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1307: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_mingw32=yes
 else
@@ -1321,7 +1322,7 @@ test "$ac_cv_mingw32" = yes && MINGW32=yes
 
 
 echo $ac_n "checking for executable suffix""... $ac_c" 1>&6
-echo "configure:1325: checking for executable suffix" >&5
+echo "configure:1326: checking for executable suffix" >&5
 if eval "test \"`echo '$''{'ac_cv_exeext'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1331,7 +1332,7 @@ else
   rm -f conftest*
   echo 'int main () { return 0; }' > conftest.$ac_ext
   ac_cv_exeext=
-  if { (eval echo configure:1335: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
+  if { (eval echo configure:1336: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
     for file in conftest.*; do
       case $file in
       *.c | *.o | *.obj) ;;
@@ -1358,7 +1359,7 @@ ac_exeext=$EXEEXT
 
 
     echo $ac_n "checking for building with threads""... $ac_c" 1>&6
-echo "configure:1362: checking for building with threads" >&5
+echo "configure:1363: checking for building with threads" >&5
     # Check whether --enable-threads or --disable-threads was given.
 if test "${enable_threads+set}" = set; then
   enableval="$enable_threads"
@@ -1395,7 +1396,7 @@ EOF
 
 
     echo $ac_n "checking how to build libraries""... $ac_c" 1>&6
-echo "configure:1399: checking how to build libraries" >&5
+echo "configure:1400: checking how to build libraries" >&5
     # Check whether --enable-shared or --disable-shared was given.
 if test "${enable_shared+set}" = set; then
   enableval="$enable_shared"
@@ -1436,7 +1437,7 @@ EOF
     # Step 0: Enable 64 bit support?
 
     echo $ac_n "checking if 64bit support is requested""... $ac_c" 1>&6
-echo "configure:1440: checking if 64bit support is requested" >&5
+echo "configure:1441: checking if 64bit support is requested" >&5
     # Check whether --enable-64bit or --disable-64bit was given.
 if test "${enable_64bit+set}" = set; then
   enableval="$enable_64bit"
@@ -1453,7 +1454,7 @@ fi
     # Extract the first word of "cygpath", so it can be a program name with args.
 set dummy cygpath; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1457: checking for $ac_word" >&5
+echo "configure:1458: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_CYGPATH'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1497,9 +1498,9 @@ fi
 	echo "END" >> $conftest
 
 	echo $ac_n "checking for Windows native path bug in windres""... $ac_c" 1>&6
-echo "configure:1501: checking for Windows native path bug in windres" >&5
+echo "configure:1502: checking for Windows native path bug in windres" >&5
 	cyg_conftest=`$CYGPATH $conftest`
-	if { ac_try='$RC -o conftest.res.o $cyg_conftest'; { (eval echo configure:1503: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } ; then
+	if { ac_try='$RC -o conftest.res.o $cyg_conftest'; { (eval echo configure:1504: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } ; then
 	    echo "$ac_t""no" 1>&6
 	else
 	    echo "$ac_t""yes" 1>&6
@@ -1518,7 +1519,7 @@ echo "configure:1501: checking for Windows native path bug in windres" >&5
     # set various compiler flags depending on whether we are using gcc or cl
 
     echo $ac_n "checking compiler flags""... $ac_c" 1>&6
-echo "configure:1522: checking compiler flags" >&5
+echo "configure:1523: checking compiler flags" >&5
     if test "${GCC}" = "yes" ; then
 	if test "$do64bit" = "yes" ; then
 	    echo "configure: warning: "64bit mode not supported with GCC on Windows"" 1>&2
@@ -1734,7 +1735,7 @@ echo "configure:1522: checking compiler flags" >&5
 
 
     echo $ac_n "checking for build with symbols""... $ac_c" 1>&6
-echo "configure:1738: checking for build with symbols" >&5
+echo "configure:1739: checking for build with symbols" >&5
     # Check whether --enable-symbols or --disable-symbols was given.
 if test "${enable_symbols+set}" = set; then
   enableval="$enable_symbols"
@@ -1794,7 +1795,7 @@ TCL_DBGX=${DBGX}
 #--------------------------------------------------------------------
 
 echo $ac_n "checking how to run the C preprocessor""... $ac_c" 1>&6
-echo "configure:1798: checking how to run the C preprocessor" >&5
+echo "configure:1799: checking how to run the C preprocessor" >&5
 # On Suns, sometimes $CPP names a directory.
 if test -n "$CPP" && test -d "$CPP"; then
   CPP=
@@ -1809,13 +1810,13 @@ else
   # On the NeXT, cc -E runs the code through the compiler's parser,
   # not just through cpp.
   cat > conftest.$ac_ext <<EOF
-#line 1813 "configure"
+#line 1814 "configure"
 #include "confdefs.h"
 #include <assert.h>
 Syntax Error
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1819: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:1820: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   :
@@ -1826,13 +1827,13 @@ else
   rm -rf conftest*
   CPP="${CC-cc} -E -traditional-cpp"
   cat > conftest.$ac_ext <<EOF
-#line 1830 "configure"
+#line 1831 "configure"
 #include "confdefs.h"
 #include <assert.h>
 Syntax Error
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1836: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:1837: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   :
@@ -1843,13 +1844,13 @@ else
   rm -rf conftest*
   CPP="${CC-cc} -nologo -E"
   cat > conftest.$ac_ext <<EOF
-#line 1847 "configure"
+#line 1848 "configure"
 #include "confdefs.h"
 #include <assert.h>
 Syntax Error
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1853: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:1854: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   :
@@ -1875,17 +1876,17 @@ echo "$ac_t""$CPP" 1>&6
 
 ac_safe=`echo "errno.h" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for errno.h""... $ac_c" 1>&6
-echo "configure:1879: checking for errno.h" >&5
+echo "configure:1880: checking for errno.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1884 "configure"
+#line 1885 "configure"
 #include "confdefs.h"
 #include <errno.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1889: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:1890: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*