ci: extend error diagnostics when configure invocation fails

* ci/run-build-and-tests.sh: Include $CC -dumpspecs output in addition
to config.log when ./configure fails.

diff --git a/ci/run-build-and-tests.sh b/ci/run-build-and-tests.sh
index 55bd8404093ff0f79781c8ed269e9db6fb751fab..c43e374a25409750a60c9b0cb3123bcdfcf14f19 100755 (executable)
--- a/ci/run-build-and-tests.sh
+++ b/ci/run-build-and-tests.sh
@@ -66,6 +66,8 @@ export CC_FOR_BUILD="$CC"
        || {
        rc=$?
        cat config.log
+       echo "$CC -dumpspecs follows"
+       $CC -dumpspecs
        exit $rc
 }