configure: test for -Wparentheses-equality

Change-Id: I36de79c58461907deaea70d6131da9119bc0bc69

diff --git a/configure b/configure
index 090d3fb..30c7984 100755 (executable)
--- a/configure
+++ b/configure
@@ -579,6 +579,7 @@ process_toolchain() {
         check_add_cflags -Wdeclaration-after-statement
         check_add_cflags -Wdisabled-optimization
         check_add_cflags -Wfloat-conversion
+        check_add_cflags -Wparentheses-equality
         check_add_cflags -Wpointer-arith
         check_add_cflags -Wtype-limits
         check_add_cflags -Wcast-qual