Only configure GDBtk when it is present.

gdb/ChangeLog

@@ -1,3 +1,10 @@
+Fri Mar  3 13:12:34 2000  Andrew Cagney  <cagney@b1.cygnus.com>
+
+	* configure.in (ENABLE_GDBTK): Delete variable.
+	(enable-gdbtk): Only enable gdbtk when there is a GDBTK directory.
+	* Makefile.in: Update.
+	* configure: Regenerate
+
 2000-03-02  Elena Zannoni  <ezannoni@kwikemart.cygnus.com>
 
 	* config/alpha/alpha-linux.mh: Remove core-regset.o fron the

gdb/Makefile.in

@@ -219,7 +219,6 @@ X11_LIBS =
 
 WIN32LDAPP = @WIN32LDAPP@
 
-ENABLE_GDBTK= @ENABLE_GDBTK@
 LIBGUI = @LIBGUI@
 GUI_CFLAGS_X = @GUI_CFLAGS_X@
 IDE_CFLAGS=$(GUI_CFLAGS_X) $(IDE_CFLAGS_X)

gdb/configure.in

@@ -576,8 +576,6 @@ AC_DEFINE_UNQUOTED(TARGET_CPU_DEFAULT, "${with_cpu}")
 ],)
 
 
-ENABLE_GDBTK=
-
 AC_ARG_ENABLE(gdbtk,
 [  --enable-gdbtk          Enable GDBTK GUI front end],
 [case "${enableval}" in
@@ -603,8 +601,11 @@ case "$host" in
     *go32* | *windows*)
 	;;
     *)
-	enable_gdbtk=yes ;;
-    esac
+ 	if test -d "${srcdir}/gdbtk" ; then
+            enable_gdbtk=yes
+	fi
+	;;
+esac
 ])
 
 WIN32LDAPP=
@@ -677,7 +678,6 @@ if test "${enable_gdbtk}" = "yes"; then
 	     TIX_DEPS="${TIX_BUILD_LOCATION}/${TIX_LIB_FILE}"
            fi
 
-	   ENABLE_GDBTK=1
            ENABLE_CFLAGS="$ENABLE_CFLAGS -DGDBTK"
 	   # Tcl/Tk 8.1 require -fwritable strings.  I don't
            # know whether 8.2 will or not, but I bet it will.
@@ -713,7 +713,6 @@ if test "${enable_gdbtk}" = "yes"; then
     fi
 fi
 
-AC_SUBST(ENABLE_GDBTK)
 AC_SUBST(X_CFLAGS)
 AC_SUBST(X_LDFLAGS)
 AC_SUBST(X_LIBS)