Don't mention -Wno-unused-parameter if -Wextra is unavailable

diff --git a/configure.in b/configure.in
index e64fbc87ce074ba2cafe6b04f06d92fde7a9c4b4..16dafdcd9e38d2042eae2d9bfce012a41bc11576 100644 (file)
--- a/configure.in
+++ b/configure.in
@@ -20,13 +20,13 @@ esac
 if test "${CC}" = "cc" ; then
    CFLAGS="${CFLAGS} -g -O2 -Aa"
 fi
-CFLAGS="${CFLAGS} -Wall -Wno-sign-compare -Wno-unused-parameter"
+CFLAGS="${CFLAGS} -Wall -Wno-sign-compare"
 
 dnl Check for supported compiler options
 
 AC_MSG_CHECKING([for extra warnings flag in $CC])
 saved_CFLAGS="${CFLAGS}"
-CFLAGS="${CFLAGS} -Wextra"
+CFLAGS="${CFLAGS} -Wextra -Wno-unused-parameter"
 AC_COMPILE_IFELSE([AC_LANG_SOURCE([])],[have_extra_warnings="yes"],[have_extra_warnings="no"])
 AC_MSG_RESULT($have_extra_warnings)
 if test "$have_extra_warnings" == "no" ; then