General: Update build system to upstream support of meson+ninja.

Upstream thinks, that the auto tools are too 'legacy', or that they
are at least no longer fitting.

We follow, as the classic auto tools files have been removed, so no
other choice here...

1 files changed, 20 insertions, 0 deletions

diff --git a/tools/meson-check-help.sh b/tools/meson-check-help.sh
new file mode 100755
index 000000000..47a5099a0
--- /dev/null
+++ b/tools/meson-check-help.sh
@@ -0,0 +1,20 @@
+#!/bin/sh -eu
+
+# output width
+if "$1"  --help | grep -v 'default:' | grep -E -q '.{80}.'; then
+        echo "$(basename "$1") --help output is too wide:"
+        "$1"  --help | awk 'length > 80' | grep -E --color=yes '.{80}'
+        exit 1
+fi
+
+# no --help output to stdout
+if "$1" --help 2>&1 1>/dev/null | grep .; then
+        echo "$(basename "$1") --help prints to stderr"
+        exit 2
+fi
+
+# error output to stderr
+if ! "$1" --no-such-parameter 2>&1 1>/dev/null | grep -q .; then
+        echo "$(basename "$1") with an unknown parameter does not print to stderr"
+        exit 3
+fi