1 files changed, 25 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..6fa77f0
--- /dev/null
+++ b/scripts/wrap-compiler-for-flag-check
@@ -0,0 +1,25 @@
+#!/bin/sh
+# From kmcallister: 
+# https://github.com/kmcallister/autoharden/blob/efaf5a16612589808c276a11536ea9a47071f74b/scripts/wrap-compiler-for-flag-check
+# There is no way to make clang's "argument unused" warning fatal.  So when
+# configure checks for supported flags, it runs $CC, $CXX, $LD via this
+# wrapper.
+#
+# Ideally the search string would also include 'clang: ' but this output might
+# depend on clang's argv[0].
+if out=`"$@" 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

diff --git a/scripts/wrap-compiler-for-flag-check b/scripts/wrap-compiler-for-flag-check new file mode 100755 index 0000000..6fa77f0 --- /dev/null +++ b/scripts/wrap-compiler-for-flag-check
@@ -0,0 +1,25 @@
	1	#!/bin/sh
	2
	3	# From kmcallister:
	4	# https://github.com/kmcallister/autoharden/blob/efaf5a16612589808c276a11536ea9a47071f74b/scripts/wrap-compiler-for-flag-check
	5
	6	# There is no way to make clang's "argument unused" warning fatal. So when
	7	# configure checks for supported flags, it runs $CC, $CXX, $LD via this
	8	# wrapper.
	9	#
	10	# Ideally the search string would also include 'clang: ' but this output might
	11	# depend on clang's argv[0].
	12
	13	if out=`"$@" 2>&1`; then
	14	echo "$out"
	15	if echo "$out" \| grep 'warning: argument unused' >/dev/null; then
	16	echo "$0: found clang warning"
	17	exit 1
	18	else
	19	exit 0
	20	fi
	21	else
	22	code=$?
	23	echo "$out"
	24	exit $code
	25	fi