Fix compilation warnings with gcc 6.

1 files changed, 2 insertions, 50 deletions

diff --git a/configure b/configure
index a29752859..c2df511b9 100755
--- a/configure
+++ b/configure
@@ -1,5 +1,5 @@
 #! /bin/sh
-# From configure.in 8291fd8.
+# From configure.in d8c88a7.
 # Guess values for system-dependent variables and create Makefiles.
 # Generated by GNU Autoconf 2.69.
 #
@@ -6986,55 +6986,7 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 
 #AC_CHECK_COMPILER_WFLAG(cast-align)
-
-		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC supports -Wlogical-op" >&5
-$as_echo_n "checking whether $CC supports -Wlogical-op... " >&6; }
-		OLD_CFLAGS="$CFLAGS"
-		CFLAGS="$CFLAGS -Werror -Wlogical-op"
-		cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-int foo;
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-
-				{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-				CFLAGS="$OLD_CFLAGS -Wlogical-op"
-				# Optionally, run a test
-				if test "x" != "x"; then
-					{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC can actually use -Wlogical-op" >&5
-$as_echo_n "checking whether $CC can actually use -Wlogical-op... " >&6; }
-					CFLAGS="$OLD_CFLAGS -Werror -Wlogical-op"
-					cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-
-							{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-							CFLAGS="$OLD_CFLAGS"
-
-
-							{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; }
-							CFLAGS="$OLD_CFLAGS -Wlogical-op"
-
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-				fi
-
-else
-
-				{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-				CFLAGS="$OLD_CFLAGS"
-
-
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-
-
+#AC_CHECK_COMPILER_WFLAG(logical-op) # some useless warnings
 
 		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC supports -Wnested-externs" >&5
 $as_echo_n "checking whether $CC supports -Wnested-externs... " >&6; }