utils-std

commit: 9ed44af08a2e230c4a88f291206098f8e9aac3cc
parent 02bea55023e6f26d5c6eb7cf167a28e49528e92e
Author: Haelwenn (lanodan) Monnier <contact@hacktivis.me>
Date:   Thu, 29 Aug 2024 00:30:41 +0200

configure: Add -Wwrite-strings to CFLAGS when supported

Diffstat:
M
configure
11
+++++++++++
A
configure.d/cflag_test.c
7
+++++++

2 files changed, 18 insertions(+), 0 deletions(-)
diff --git a/configure b/configure
@@ -104,6 +104,15 @@ check_conftest() {
 	rm "${conftest}.bin"
 }
 
+check_cflag() {
+	printf "checking whether compiler accepts %s... " "$@"
+
+	${CC} ${CFLAGS} "$@" -c -o "configure.d/cflag_test.bin" "configure.d/cflag_test.c" 2>&1
+	is_ok
+
+	rm "configure.d/cflag_test.bin"
+}
+
 set -o pipefail
 
 ## User configuration
@@ -198,6 +207,8 @@ fi
 
 echo
 
+check_cflag -Wwrite-strings && CFLAGS="${CFLAGS} -Wwrite-strings"
+
 if ! check_header mntent.h; then
 	echo 'Disabling cmd/df'
 	target_filter="${target_filter} -e cmd/df"
diff --git a/configure.d/cflag_test.c b/configure.d/cflag_test.c
@@ -0,0 +1,7 @@
+// SPDX-FileCopyrightText: 2017 Haelwenn (lanodan) Monnier <contact+utils@hacktivis.me>
+// SPDX-License-Identifier: 0BSD
+int
+foo(int c)
+{
+	return c;
+}