From 8963de965b64092333a29e1589334886ebee97ac Mon Sep 17 00:00:00 2001
From: "Dmitry V. Levin" <ldv@strace.io>
Date: Sun, 30 Apr 2023 08:00:00 +0000
Subject: generate_mpers_am.sh: enhance error diagnostics

* src/generate_mpers_am.sh: Explicitly issue an error if the generated
list of mpers source files is empty.

Resolves: https://github.com/strace/strace/issues/249
---
 src/generate_mpers_am.sh | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'src')

diff --git a/src/generate_mpers_am.sh b/src/generate_mpers_am.sh
index 4d77ecdb3..58063319a 100755
--- a/src/generate_mpers_am.sh
+++ b/src/generate_mpers_am.sh
@@ -13,6 +13,11 @@ list="$(sed -E -n '/^strace_SOURCES[[:space:]]*=/,/^[[:space:]]*# end of strace_
 	xargs -r grep -Elx '#[[:space:]]*include[[:space:]]+MPERS_DEFS' |
 	tr '\n' ' ')"
 
+[ -n "$list" ] || {
+	echo >&2 "$0: error: the list of mpers source files is empty"
+	exit 1
+}
+
 cat > mpers.am <<EOF
 # Generated by $0; do not edit.
 mpers_source_files = $list
-- 
cgit v1.2.1