diff -Naur sourcenav-5.2b2-orig/libgui/configure sourcenav-5.2b2/libgui/configure
--- sourcenav-5.2b2-orig/libgui/configure	2006-05-06 19:06:40.000000000 -0600
+++ sourcenav-5.2b2/libgui/configure	2006-05-06 19:07:28.000000000 -0600
@@ -1920,14 +1920,7 @@
 fi
 rm -f conftest*
 
-
-# Tcl8.1 requires writable strings for gcc
-
-if test "$GCC" = "yes"; then
-   LIBGUI_CFLAGS=-fwritable-strings
-else
-   LIBGUI_CFLAGS=
-fi
+LIBGUI_CFLAGS=
 
 echo $ac_n "checking for cygwin32""... $ac_c" 1>&6
 echo "configure:1934: checking for cygwin32" >&5
diff -Naur sourcenav-5.2b2-orig/snavigator/configure sourcenav-5.2b2/snavigator/configure
--- sourcenav-5.2b2-orig/snavigator/configure	2006-05-06 19:06:39.000000000 -0600
+++ sourcenav-5.2b2/snavigator/configure	2006-05-06 19:07:45.000000000 -0600
@@ -1429,7 +1429,7 @@
 
 if test x$ide_cv_os_cygwin32 = xyes ||
        test x$sn_cv_os_mingw32 = xyes ; then
-   HYPER_CFLAGS="-Wall -fwritable-strings"
+   HYPER_CFLAGS="-Wall"
 fi
  
 
diff -Naur sourcenav-5.2b2-orig/tix/unix/tk8.1/Makefile.in sourcenav-5.2b2/tix/unix/tk8.1/Makefile.in
--- sourcenav-5.2b2-orig/tix/unix/tk8.1/Makefile.in	2006-05-06 19:06:31.000000000 -0600
+++ sourcenav-5.2b2/tix/unix/tk8.1/Makefile.in	2006-05-06 19:08:20.000000000 -0600
@@ -46,7 +46,7 @@
 # To change the compiler switches, for example to change from -O
 # to -g, change the following line:
 CFLAGS = -O
-TIX_CFLAGS = $(CFLAGS) -fwritable-strings
+TIX_CFLAGS = $(CFLAGS)
 
 # To disable ANSI-C procedure prototypes reverse the comment characters
 # on the following lines:
diff -Naur sourcenav-5.2b2-orig/tix/unix/tk8.3/Makefile.in sourcenav-5.2b2/tix/unix/tk8.3/Makefile.in
--- sourcenav-5.2b2-orig/tix/unix/tk8.3/Makefile.in	2006-05-06 19:06:31.000000000 -0600
+++ sourcenav-5.2b2/tix/unix/tk8.3/Makefile.in	2006-05-06 19:08:32.000000000 -0600
@@ -47,7 +47,7 @@
 # To change the compiler switches, for example to change from -O
 # to -g, change the following line:
 CFLAGS = @CFLAGS@
-TIX_CFLAGS = $(CFLAGS) -fwritable-strings
+TIX_CFLAGS = $(CFLAGS)
 
 # To disable ANSI-C procedure prototypes reverse the comment characters
 # on the following lines: