build-sys: enable colored diagnostics if available

diff --git a/configure.ac b/configure.ac
index e7416f6ae490fcbb34b7b61a915982ab75e7249a..38187a1af9bf48fbe1af595ced2b028bb32074c9 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -179,6 +179,7 @@ CC_CHECK_FLAGS_APPEND(with_cflags, [CFLAGS], [\
                       -Wuninitialized \
                       -fno-common \
                       -fdiagnostics-show-option \
+                      -fdiagnostics-color=auto \
                       -fvisibility=hidden \
                       -ffunction-sections \
                       -fdata-sections])