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Diffstat (limited to 'scripts/wrap-compiler-for-flag-check')
| -rwxr-xr-x | scripts/wrap-compiler-for-flag-check | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/scripts/wrap-compiler-for-flag-check b/scripts/wrap-compiler-for-flag-check new file mode 100755 index 0000000..b014f11 --- /dev/null +++ b/scripts/wrap-compiler-for-flag-check @@ -0,0 +1,31 @@ +#!/bin/sh + +# This file is in the public domain. +# https://github.com/kmcallister/autoharden/blob/c5c7842f39c2f8d19836bb5427d6479db4436d62/LICENSE +# +# From kmcallister: +# https://github.com/kmcallister/autoharden/blob/efaf5a16612589808c276a11536ea9a47071f74b/scripts/wrap-compiler-for-flag-check + +# Prior to clang v5.1, there was no way to make +# clang's "argument unused" warning fatal. This +# wrapper script that greps for this warning message. Newer clang's have no issues. +# +# Ideally the search string would also include 'clang: ' but this output might +# depend on clang's argv[0]. +# +set -o errexit +set -o nounset + +if out=`"$@" 2>&1`; then + echo "$out" + if echo "$out" | grep 'warning: argument unused' >/dev/null; then + echo "$0: found clang warning" + exit 1 + else + exit 0 + fi +else + code=$? + echo "$out" + exit $code +fi |