configure.in: Fix --without/--disable cases for local-prefix, gxx-include-dir and checking.

        * configure.in: Fix --without/--disable cases for local-prefix,
        gxx-include-dir and checking.

From-SVN: r21464

gcc/ChangeLog

+Tue Jul 28 23:29:04 1998  Jason Merrill  <jason@yorick.cygnus.com>
+
+	* configure.in: Fix --without/--disable cases for local-prefix, 
+	gxx-include-dir and checking.
+
 Tue Jul 28 22:01:23 1998  David S. Miller  <davem@pierdol.cobaltmicro.com>
 
 	* configure.in (enable_haifa): Set by default for sparc64 too.

gcc/configure.in

@@ -56,30 +56,47 @@ elf="$with_elf",
 elf=no)
 
 # Specify the local prefix
+local_prefix=
 AC_ARG_WITH(local-prefix,
 [  --with-local-prefix=DIR specifies directory to put local include.],
-local_prefix=$with_local_prefix,
-local_prefix=/usr/local)
+[case "${withval}" in
+yes)	AC_MSG_ERROR(bad value ${withval} given for local include directory prefix) ;;
+no)	;;
+*)	local_prefix=$with_local_prefix ;;
+esac])
 
 # Default local prefix if it is empty
 if [[ x$local_prefix = x ]]; then
 	local_prefix=/usr/local
 fi
 
+gxx_include_dir=
 # Specify the g++ header file directory
 AC_ARG_WITH(gxx-include-dir,
 [  --with-gxx-include-dir=DIR
                           specifies directory to put g++ header files.],
-gxx_include_dir=$with_gxx_include_dir,
-if test x${enable_version_specific_runtime_libs} = xyes; then
-gxx_include_dir='${libsubdir}/include/g++'
-else gxx_include_dir='${prefix}/include/g++'; fi)
+[case "${withval}" in
+yes)	AC_MSG_ERROR(bad value ${withval} given for g++ include directory) ;;
+no)	;;
+*)	gxx_include_dir=$with_gxx_include_dir ;;
+esac])
+
+if test x${gxx_include_dir} = x; then
+  if test x${enable_version_specific_runtime_libs} = xyes; then
+    gxx_include_dir='${libsubdir}/include/g++'
+  else
+    gxx_include_dir='${prefix}/include/g++'
+  fi
+fi
 
 # Enable expensive internal checks
 AC_ARG_ENABLE(checking,
 [  --enable-checking       enable expensive run-time checks.],
-AC_DEFINE(ENABLE_CHECKING)  
-)
+[case "${enableval}" in
+yes)	AC_DEFINE(ENABLE_CHECKING) ;;
+no)	;;
+*)	AC_MSG_ERROR(bad value ${enableval} given for checking option) ;;
+esac])
 
 # Enable use of cpplib for C.
 cpp_main=cccp