--- gvpe/configure.ac	2004/06/11 15:56:10	1.31
+++ gvpe/configure.ac	2005/03/04 03:43:09	1.34
@@ -19,19 +19,24 @@
 ])
 
 AH_BOTTOM([
+typedef unsigned char u8;
+typedef signed char s8;
+
 #if __CYGWIN__
 
-typedef unsigned char u8;
 typedef unsigned short u16;
 typedef unsigned int u32;
+typedef signed short s16;
+typedef signed int s32;
 
 #else
 #include <inttypes.h>
 
 /* old modula-2 habits */
-typedef unsigned char u8;
 typedef uint16_t u16;
 typedef uint32_t u32;
+typedef int16_t s16;
+typedef int32_t s32;
 #endif
 
 #endif
@@ -263,7 +268,12 @@
 
 AC_ARG_ENABLE(dns,
   [AS_HELP_STRING(--enable-dns,enable dns tunnel protocol support (DOES NOT WORK).)],
-  AC_DEFINE_UNQUOTED(ENABLE_DNS, 1, [DNS tunnel protocol support.])
+  [
+    AC_CHECK_HEADER(gmp.h,,[AC_MSG_ERROR([gmp.h not found, required for --enable-dns])])
+    AC_CHECK_LIB(gmp,main,,[AC_MSG_ERROR([libgmp not found, required for --enable-dns])])
+
+    AC_DEFINE_UNQUOTED(ENABLE_DNS, 1, [DNS tunnel protocol support.])
+  ]
 )
 
 AC_ARG_ENABLE(http-proxy,
@@ -382,7 +392,6 @@
 
 AC_CONFIG_FILES([Makefile po/Makefile.in
 src/Makefile
-src/rohc/Makefile
 doc/Makefile
 lib/Makefile
 m4/Makefile