Allow cross-compilation by default (backported)

Use -pipe for gcc on win32 (backported)

4 files changed, 176 insertions, 96 deletions

diff --git a/ChangeLog b/ChangeLog
index e53755d..e299295 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -4,9 +4,12 @@
 	'Tcl_GetIndexFromObj' discards qualifiers from pointer target type
 	* generic/tclWinInit.c: fix gcc warning: dereferencing pointer
 	'oemId' does break strict-aliasing rules
-	* win/tclWin32Dll.c: fix gcc warnings: unused variable 'registration'
+	* win/tclWin32Dll.c:    fix gcc warnings: unused variable 'registration'
 	* win/tclWinChan.c:
 	* win/tclWinFCmd.c:
+	* win/configure.in:	    Allow cross-compilation by default. (backported)
+	* win/tcl.m4:		    Use -pipe for gcc on win32 (backported)
+	* win/configure:        (regenerated)
 
 2010-11-18  Donal K. Fellows  <dkf@users.sf.net>
 
diff --git a/win/configure b/win/configure
index f58e61d..ef47784 100755
--- a/win/configure
+++ b/win/configure
@@ -309,7 +309,7 @@ ac_includes_default="\
 # include <unistd.h>
 #endif"
 
-ac_subst_vars='SHELL PATH_SEPARATOR PACKAGE_NAME PACKAGE_TARNAME PACKAGE_VERSION PACKAGE_STRING PACKAGE_BUGREPORT exec_prefix prefix program_transform_name bindir sbindir libexecdir datadir sysconfdir sharedstatedir localstatedir libdir includedir oldincludedir infodir mandir build_alias host_alias target_alias DEFS ECHO_C ECHO_N ECHO_T LIBS CC CFLAGS LDFLAGS CPPFLAGS ac_ct_CC EXEEXT OBJEXT CPP EGREP AR RANLIB RC SET_MAKE TCL_THREADS CYGPATH CELIB_DIR DL_LIBS CFLAGS_DEBUG CFLAGS_OPTIMIZE CFLAGS_WARNING CFLAGS_DEFAULT LDFLAGS_DEFAULT VC_MANIFEST_EMBED_DLL VC_MANIFEST_EMBED_EXE TCL_VERSION TCL_MAJOR_VERSION TCL_MINOR_VERSION TCL_PATCH_LEVEL TCL_LIB_FILE TCL_LIB_FLAG TCL_LIB_SPEC TCL_STUB_LIB_FILE TCL_STUB_LIB_FLAG TCL_STUB_LIB_SPEC TCL_STUB_LIB_PATH TCL_INCLUDE_SPEC TCL_BUILD_STUB_LIB_SPEC TCL_BUILD_STUB_LIB_PATH TCL_DLL_FILE TCL_SRC_DIR TCL_BIN_DIR TCL_DBGX CFG_TCL_SHARED_LIB_SUFFIX CFG_TCL_UNSHARED_LIB_SUFFIX CFG_TCL_EXPORT_FILE_SUFFIX EXTRA_CFLAGS DEPARG CC_OBJNAME CC_EXENAME LDFLAGS_DEBUG LDFLAGS_OPTIMIZE LDFLAGS_CONSOLE LDFLAGS_WINDOW STLIB_LD SHLIB_LD SHLIB_LD_LIBS SHLIB_CFLAGS SHLIB_SUFFIX TCL_SHARED_BUILD LIBS_GUI DLLSUFFIX LIBPREFIX LIBSUFFIX EXESUFFIX LIBRARIES MAKE_LIB POST_MAKE_LIB MAKE_DLL MAKE_EXE TCL_BUILD_LIB_SPEC TCL_LD_SEARCH_FLAGS TCL_NEEDS_EXP_FILE TCL_BUILD_EXP_FILE TCL_EXP_FILE TCL_LIB_VERSIONS_OK TCL_PACKAGE_PATH TCL_DDE_VERSION TCL_DDE_MAJOR_VERSION TCL_DDE_MINOR_VERSION TCL_DDE_PATCH_LEVEL TCL_REG_VERSION TCL_REG_MAJOR_VERSION TCL_REG_MINOR_VERSION TCL_REG_PATCH_LEVEL RC_OUT RC_TYPE RC_INCLUDE RC_DEFINE RC_DEFINES RES LIBOBJS LTLIBOBJS'
+ac_subst_vars='SHELL PATH_SEPARATOR PACKAGE_NAME PACKAGE_TARNAME PACKAGE_VERSION PACKAGE_STRING PACKAGE_BUGREPORT exec_prefix prefix program_transform_name bindir sbindir libexecdir datadir sysconfdir sharedstatedir localstatedir libdir includedir oldincludedir infodir mandir build_alias host_alias target_alias DEFS ECHO_C ECHO_N ECHO_T LIBS CC CFLAGS LDFLAGS CPPFLAGS ac_ct_CC EXEEXT OBJEXT CPP EGREP AR ac_ct_AR RANLIB ac_ct_RANLIB RC ac_ct_RC SET_MAKE TCL_THREADS CYGPATH CELIB_DIR DL_LIBS CFLAGS_DEBUG CFLAGS_OPTIMIZE CFLAGS_WARNING CFLAGS_DEFAULT LDFLAGS_DEFAULT VC_MANIFEST_EMBED_DLL VC_MANIFEST_EMBED_EXE TCL_VERSION TCL_MAJOR_VERSION TCL_MINOR_VERSION TCL_PATCH_LEVEL TCL_LIB_FILE TCL_LIB_FLAG TCL_LIB_SPEC TCL_STUB_LIB_FILE TCL_STUB_LIB_FLAG TCL_STUB_LIB_SPEC TCL_STUB_LIB_PATH TCL_INCLUDE_SPEC TCL_BUILD_STUB_LIB_SPEC TCL_BUILD_STUB_LIB_PATH TCL_DLL_FILE TCL_SRC_DIR TCL_BIN_DIR TCL_DBGX CFG_TCL_SHARED_LIB_SUFFIX CFG_TCL_UNSHARED_LIB_SUFFIX CFG_TCL_EXPORT_FILE_SUFFIX EXTRA_CFLAGS DEPARG CC_OBJNAME CC_EXENAME LDFLAGS_DEBUG LDFLAGS_OPTIMIZE LDFLAGS_CONSOLE LDFLAGS_WINDOW STLIB_LD SHLIB_LD SHLIB_LD_LIBS SHLIB_CFLAGS SHLIB_SUFFIX TCL_SHARED_BUILD LIBS_GUI DLLSUFFIX LIBPREFIX LIBSUFFIX EXESUFFIX LIBRARIES MAKE_LIB POST_MAKE_LIB MAKE_DLL MAKE_EXE TCL_BUILD_LIB_SPEC TCL_LD_SEARCH_FLAGS TCL_NEEDS_EXP_FILE TCL_BUILD_EXP_FILE TCL_EXP_FILE TCL_LIB_VERSIONS_OK TCL_PACKAGE_PATH TCL_DDE_VERSION TCL_DDE_MAJOR_VERSION TCL_DDE_MINOR_VERSION TCL_DDE_PATCH_LEVEL TCL_REG_VERSION TCL_REG_MAJOR_VERSION TCL_REG_MINOR_VERSION TCL_REG_PATCH_LEVEL RC_OUT RC_TYPE RC_INCLUDE RC_DEFINE RC_DEFINES RES LIBOBJS LTLIBOBJS'
 ac_subst_files=''
 
 # Initialize some variables set by options.
@@ -2768,16 +2768,9 @@ _ACEOF
 fi
 
 
-# To properly support cross-compilation, one would
-# need to use these tool checks instead of
-# the ones below and reconfigure with
-# autoconf 2.50. You can also just set
-# the CC, AR, RANLIB, and RC environment
-# variables if you want to cross compile.
-
-if test "${GCC}" = "yes" ; then
-    # Extract the first word of "ar", so it can be a program name with args.
-set dummy ar; ac_word=$2
+if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}ar", so it can be a program name with args.
+set dummy ${ac_tool_prefix}ar; ac_word=$2
 echo "$as_me:$LINENO: checking for $ac_word" >&5
 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
 if test "${ac_cv_prog_AR+set}" = set; then
@@ -2793,7 +2786,7 @@ do
   test -z "$as_dir" && as_dir=.
   for ac_exec_ext in '' $ac_executable_extensions; do
   if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
-    ac_cv_prog_AR="ar"
+    ac_cv_prog_AR="${ac_tool_prefix}ar"
     echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi
@@ -2811,8 +2804,52 @@ else
 echo "${ECHO_T}no" >&6
 fi
 
-    # Extract the first word of "ranlib", so it can be a program name with args.
-set dummy ranlib; ac_word=$2
+fi
+if test -z "$ac_cv_prog_AR"; then
+  ac_ct_AR=$AR
+  # Extract the first word of "ar", so it can be a program name with args.
+set dummy ar; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_ac_ct_AR+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test -n "$ac_ct_AR"; then
+  ac_cv_prog_ac_ct_AR="$ac_ct_AR" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_AR="ar"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+done
+
+fi
+fi
+ac_ct_AR=$ac_cv_prog_ac_ct_AR
+if test -n "$ac_ct_AR"; then
+  echo "$as_me:$LINENO: result: $ac_ct_AR" >&5
+echo "${ECHO_T}$ac_ct_AR" >&6
+else
+  echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+  AR=$ac_ct_AR
+else
+  AR="$ac_cv_prog_AR"
+fi
+
+if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}ranlib", so it can be a program name with args.
+set dummy ${ac_tool_prefix}ranlib; ac_word=$2
 echo "$as_me:$LINENO: checking for $ac_word" >&5
 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
 if test "${ac_cv_prog_RANLIB+set}" = set; then
@@ -2828,7 +2865,7 @@ do
   test -z "$as_dir" && as_dir=.
   for ac_exec_ext in '' $ac_executable_extensions; do
   if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
-    ac_cv_prog_RANLIB="ranlib"
+    ac_cv_prog_RANLIB="${ac_tool_prefix}ranlib"
     echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi
@@ -2846,8 +2883,52 @@ else
 echo "${ECHO_T}no" >&6
 fi
 
-    # Extract the first word of "windres", so it can be a program name with args.
-set dummy windres; ac_word=$2
+fi
+if test -z "$ac_cv_prog_RANLIB"; then
+  ac_ct_RANLIB=$RANLIB
+  # Extract the first word of "ranlib", so it can be a program name with args.
+set dummy ranlib; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_ac_ct_RANLIB+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test -n "$ac_ct_RANLIB"; then
+  ac_cv_prog_ac_ct_RANLIB="$ac_ct_RANLIB" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_RANLIB="ranlib"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+done
+
+fi
+fi
+ac_ct_RANLIB=$ac_cv_prog_ac_ct_RANLIB
+if test -n "$ac_ct_RANLIB"; then
+  echo "$as_me:$LINENO: result: $ac_ct_RANLIB" >&5
+echo "${ECHO_T}$ac_ct_RANLIB" >&6
+else
+  echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+  RANLIB=$ac_ct_RANLIB
+else
+  RANLIB="$ac_cv_prog_RANLIB"
+fi
+
+if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}windres", so it can be a program name with args.
+set dummy ${ac_tool_prefix}windres; ac_word=$2
 echo "$as_me:$LINENO: checking for $ac_word" >&5
 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
 if test "${ac_cv_prog_RC+set}" = set; then
@@ -2863,7 +2944,7 @@ do
   test -z "$as_dir" && as_dir=.
   for ac_exec_ext in '' $ac_executable_extensions; do
   if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
-    ac_cv_prog_RC="windres"
+    ac_cv_prog_RC="${ac_tool_prefix}windres"
     echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi
@@ -2881,24 +2962,50 @@ else
 echo "${ECHO_T}no" >&6
 fi
 
+fi
+if test -z "$ac_cv_prog_RC"; then
+  ac_ct_RC=$RC
+  # Extract the first word of "windres", so it can be a program name with args.
+set dummy windres; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_ac_ct_RC+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test -n "$ac_ct_RC"; then
+  ac_cv_prog_ac_ct_RC="$ac_ct_RC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_RC="windres"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+done
 
-    if test "${AR}" = "" ; then
-	{ { echo "$as_me:$LINENO: error: Required archive tool 'ar' not found on PATH." >&5
-echo "$as_me: error: Required archive tool 'ar' not found on PATH." >&2;}
-   { (exit 1); exit 1; }; }
-    fi
-    if test "${RANLIB}" = "" ; then
-	{ { echo "$as_me:$LINENO: error: Required archive index tool 'ranlib' not found on PATH." >&5
-echo "$as_me: error: Required archive index tool 'ranlib' not found on PATH." >&2;}
-   { (exit 1); exit 1; }; }
-    fi
-    if test "${RC}" = "" ; then
-	{ { echo "$as_me:$LINENO: error: Required resource tool 'windres' not found on PATH." >&5
-echo "$as_me: error: Required resource tool 'windres' not found on PATH." >&2;}
-   { (exit 1); exit 1; }; }
-    fi
+fi
+fi
+ac_ct_RC=$ac_cv_prog_ac_ct_RC
+if test -n "$ac_ct_RC"; then
+  echo "$as_me:$LINENO: result: $ac_ct_RC" >&5
+echo "${ECHO_T}$ac_ct_RC" >&6
+else
+  echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
 fi
 
+  RC=$ac_ct_RC
+else
+  RC="$ac_cv_prog_RC"
+fi
+
+
 #--------------------------------------------------------------------
 # Checks to see if the make program sets the $MAKE variable.
 #--------------------------------------------------------------------
@@ -3923,13 +4030,8 @@ echo "$as_me: WARNING: 64bit mode not supported with GCC on Windows" >&2;}
 	MAKE_EXE="\${CC} -o \$@"
 	LIBPREFIX="lib"
 
-	#if test "$ac_cv_cygwin" = "yes"; then
-	#    extra_cflags="-mno-cygwin"
-	#    extra_ldflags="-mno-cygwin"
-	#else
-	#    extra_cflags=""
-	#    extra_ldflags=""
-	#fi
+	extra_cflags="-pipe"
+	extra_ldflags="-pipe"
 
 	if test "$ac_cv_cygwin" = "yes"; then
 	  touch ac$$.c
@@ -3944,9 +4046,6 @@ echo "$as_me: WARNING: 64bit mode not supported with GCC on Windows" >&2;}
 	    esac
 	  fi
 	  rm -f ac$$.o ac$$.c
-	else
-	  extra_cflags=''
-	  extra_ldflags=''
 	fi
 
 	if test "${SHARED_BUILD}" = "0" ; then
@@ -5280,8 +5379,11 @@ s,@OBJEXT@,$OBJEXT,;t t
 s,@CPP@,$CPP,;t t
 s,@EGREP@,$EGREP,;t t
 s,@AR@,$AR,;t t
+s,@ac_ct_AR@,$ac_ct_AR,;t t
 s,@RANLIB@,$RANLIB,;t t
+s,@ac_ct_RANLIB@,$ac_ct_RANLIB,;t t
 s,@RC@,$RC,;t t
+s,@ac_ct_RC@,$ac_ct_RC,;t t
 s,@SET_MAKE@,$SET_MAKE,;t t
 s,@TCL_THREADS@,$TCL_THREADS,;t t
 s,@CYGPATH@,$CYGPATH,;t t
@@ -5625,3 +5727,4 @@ if test "$no_create" != yes; then
   $ac_cs_success || { (exit 1); exit 1; }
 fi
 
+
diff --git a/win/configure.in b/win/configure.in
index aca324e..55862e4 100644
--- a/win/configure.in
+++ b/win/configure.in
@@ -3,7 +3,7 @@
 # generate the file "configure", which is run during Tcl installation
 # to configure the system for the local environment.
 #
-# RCS: @(#) $Id: configure.in,v 1.104.2.11 2010/08/27 00:09:30 hobbs Exp $
+# RCS: @(#) $Id: configure.in,v 1.104.2.12 2010/11/19 21:37:13 nijtmans Exp $
 
 AC_INIT(../generic/tcl.h)
 AC_PREREQ(2.59)
@@ -58,31 +58,9 @@ AC_PROG_CC
 AC_C_INLINE
 AC_HEADER_STDC
 
-# To properly support cross-compilation, one would
-# need to use these tool checks instead of
-# the ones below and reconfigure with
-# autoconf 2.50. You can also just set
-# the CC, AR, RANLIB, and RC environment
-# variables if you want to cross compile.
-dnl AC_CHECK_TOOL(AR, ar)
-dnl AC_CHECK_TOOL(RANLIB, ranlib)
-dnl AC_CHECK_TOOL(RC, windres)
-
-if test "${GCC}" = "yes" ; then
-    AC_CHECK_PROG(AR, ar, ar)
-    AC_CHECK_PROG(RANLIB, ranlib, ranlib)
-    AC_CHECK_PROG(RC, windres, windres)
-
-    if test "${AR}" = "" ; then
-	AC_MSG_ERROR([Required archive tool 'ar' not found on PATH.])
-    fi
-    if test "${RANLIB}" = "" ; then
-	AC_MSG_ERROR([Required archive index tool 'ranlib' not found on PATH.])
-    fi
-    if test "${RC}" = "" ; then
-	AC_MSG_ERROR([Required resource tool 'windres' not found on PATH.])
-    fi
-fi
+AC_CHECK_TOOL(AR, ar)
+AC_CHECK_TOOL(RANLIB, ranlib)
+AC_CHECK_TOOL(RC, windres)
 
 #--------------------------------------------------------------------
 # Checks to see if the make program sets the $MAKE variable.
@@ -147,7 +125,7 @@ fi
 #
 # Check to see if the excpt.h include file provided contains the
 # definition for EXCEPTION_DISPOSITION; if not, which is the case
-# with Cygwin's version as of 2002-04-10, define it to be int, 
+# with Cygwin's version as of 2002-04-10, define it to be int,
 # sufficient for getting the current code to work.
 #
 AC_CACHE_CHECK(for EXCEPTION_DISPOSITION support in include files,
@@ -337,7 +315,7 @@ SC_TCL_CFG_ENCODING
 SC_ENABLE_SHARED
 
 #--------------------------------------------------------------------
-# The statements below define a collection of compile flags.  This 
+# The statements below define a collection of compile flags.  This
 # macro depends on the value of SHARED_BUILD, and should be called
 # after SC_ENABLE_SHARED checks the configure switches.
 #--------------------------------------------------------------------
@@ -345,7 +323,7 @@ SC_ENABLE_SHARED
 SC_CONFIG_CFLAGS
 
 #--------------------------------------------------------------------
-# Set the default compiler switches based on the --enable-symbols 
+# Set the default compiler switches based on the --enable-symbols
 # option.  This macro depends on C flags, and should be called
 # after SC_CONFIG_CFLAGS macro is called.
 #--------------------------------------------------------------------
@@ -526,3 +504,7 @@ AC_SUBST(RC_DEFINES)
 AC_SUBST(RES)
 
 AC_OUTPUT(Makefile tclConfig.sh tcl.hpj)
+
+dnl Local Variables:
+dnl mode: autoconf;
+dnl End:
diff --git a/win/tcl.m4 b/win/tcl.m4
index 8877181..77bf2ca 100644
--- a/win/tcl.m4
+++ b/win/tcl.m4
@@ -27,7 +27,7 @@ AC_DEFUN([SC_PATH_TCLCONFIG], [
     else
 	TCL_BIN_DIR_DEFAULT=../../tcl/win
     fi
-    
+
     AC_ARG_WITH(tcl, [  --with-tcl=DIR          use Tcl 8.5 binaries from DIR],
 	    TCL_BIN_DIR=$withval, TCL_BIN_DIR=`cd $TCL_BIN_DIR_DEFAULT; pwd`)
     if test ! -d $TCL_BIN_DIR; then
@@ -67,7 +67,7 @@ AC_DEFUN([SC_PATH_TKCONFIG], [
     else
 	TK_BIN_DIR_DEFAULT=../../tk/win
     fi
-    
+
     AC_ARG_WITH(tk, [  --with-tk=DIR          use Tk 8.5 binaries from DIR],
 	    TK_BIN_DIR=$withval, TK_BIN_DIR=`cd $TK_BIN_DIR_DEFAULT; pwd`)
     if test ! -d $TK_BIN_DIR; then
@@ -86,7 +86,7 @@ AC_DEFUN([SC_PATH_TKCONFIG], [
 #	Load the tclConfig.sh file.
 #
 # Arguments:
-#	
+#
 #	Requires the following vars to be set:
 #		TCL_BIN_DIR
 #
@@ -158,7 +158,7 @@ AC_DEFUN([SC_LOAD_TCLCONFIG], [
 #	Currently a no-op for Windows
 #
 # Arguments:
-#	
+#
 #	Requires the following vars to be set:
 #		TK_BIN_DIR
 #
@@ -191,7 +191,7 @@ AC_DEFUN([SC_LOAD_TKCONFIG], [
 #
 # Arguments:
 #	none
-#	
+#
 # Results:
 #
 #	Adds the following arguments to configure:
@@ -235,7 +235,7 @@ AC_DEFUN([SC_ENABLE_SHARED], [
 #
 # Arguments:
 #	none
-#	
+#
 # Results:
 #
 #	Adds the following arguments to configure:
@@ -273,11 +273,11 @@ AC_DEFUN([SC_ENABLE_THREADS], [
 #
 # Arguments:
 #	none
-#	
+#
 #	Requires the following vars to be set in the Makefile:
 #		CFLAGS_DEBUG
 #		CFLAGS_OPTIMIZE
-#	
+#
 # Results:
 #
 #	Adds the following arguments to configure:
@@ -460,13 +460,8 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 	MAKE_EXE="\${CC} -o \[$]@"
 	LIBPREFIX="lib"
 
-	#if test "$ac_cv_cygwin" = "yes"; then
-	#    extra_cflags="-mno-cygwin"
-	#    extra_ldflags="-mno-cygwin"
-	#else
-	#    extra_cflags=""
-	#    extra_ldflags=""
-	#fi
+	extra_cflags="-pipe"
+	extra_ldflags="-pipe"
 
 	if test "$ac_cv_cygwin" = "yes"; then
 	  touch ac$$.c
@@ -481,9 +476,6 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 	    esac
 	  fi
 	  rm -f ac$$.o ac$$.c
-	else
-	  extra_cflags=''
-	  extra_ldflags=''
 	fi
 
 	if test "${SHARED_BUILD}" = "0" ; then
@@ -537,7 +529,7 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 	CC_OBJNAME="-o \[$]@"
 	CC_EXENAME="-o \[$]@"
 
-	# Specify linker flags depending on the type of app being 
+	# Specify linker flags depending on the type of app being
 	# built -- Console vs. Window.
 	#
 	# ORIGINAL COMMENT:
@@ -548,7 +540,7 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 	# cross compiling. Remove this -e workaround once we
 	# require a gcc that does not have this bug.
 	#
-	# MK NOTE: Tk should use a different mechanism. This causes 
+	# MK NOTE: Tk should use a different mechanism. This causes
 	# interesting problems, such as wish dying at startup.
 	#LDFLAGS_WINDOW="-mwindows -e _WinMain@16 ${extra_ldflags}"
 	LDFLAGS_CONSOLE="-mconsole ${extra_ldflags}"
@@ -758,12 +750,12 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 	CFLAGS_WARNING="-W3"
 	LDFLAGS_DEBUG="-debug:full"
 	LDFLAGS_OPTIMIZE="-release"
-	
+
 	# Specify the CC output file names based on the target name
 	CC_OBJNAME="-Fo\[$]@"
 	CC_EXENAME="-Fe\"\$(shell \$(CYGPATH) '\[$]@')\""
 
-	# Specify linker flags depending on the type of app being 
+	# Specify linker flags depending on the type of app being
 	# built -- Console vs. Window.
 	if test "$doWince" != "no" -a "${TARGETCPU}" != "X86"; then
 	    LDFLAGS_CONSOLE="-link ${lflags}"
@@ -808,7 +800,7 @@ AC_DEFUN([SC_WITH_TCL], [
     else
 	TCL_BIN_DEFAULT=../../tcl8.5/win
     fi
-    
+
     AC_ARG_WITH(tcl, [  --with-tcl=DIR          use Tcl 8.5 binaries from DIR],
 	    TCL_BIN_DIR=$withval, TCL_BIN_DIR=`cd $TCL_BIN_DEFAULT; pwd`)
     if test ! -d $TCL_BIN_DIR; then