From 5caa4066232c8d615bb95af2e5d8e9b342a0f653 Mon Sep 17 00:00:00 2001
From: Tavian Barnes <tavianator@tavianator.com>
Date: Mon, 30 Sep 2024 11:42:05 -0400
Subject: build: Add -Wundef-prefix=BFS_
---
build/flags.mk | 1 +
build/flags/Wundef-prefix.c | 9 +++++++++
src/bfs.h | 5 +++++
src/fsade.c | 7 +++++++
4 files changed, 22 insertions(+)
create mode 100644 build/flags/Wundef-prefix.c
diff --git a/build/flags.mk b/build/flags.mk
index 1421ce6..2562e03 100644
--- a/build/flags.mk
+++ b/build/flags.mk
@@ -88,6 +88,7 @@ AUTO_FLAGS := \
gen/flags/Wshadow.mk \
gen/flags/Wsign-compare.mk \
gen/flags/Wstrict-prototypes.mk \
+ gen/flags/Wundef-prefix.mk \
gen/flags/bind-now.mk \
gen/flags/deps.mk
diff --git a/build/flags/Wundef-prefix.c b/build/flags/Wundef-prefix.c
new file mode 100644
index 0000000..3eaf82b
--- /dev/null
+++ b/build/flags/Wundef-prefix.c
@@ -0,0 +1,9 @@
+// Copyright © Tavian Barnes <tavianator@tavianator.com>
+// SPDX-License-Identifier: 0BSD
+
+/// _CPPFLAGS += -Wundef-prefix=BFS_
+/// -Werror
+
+int main(void) {
+ return 0;
+}
diff --git a/src/bfs.h b/src/bfs.h
index 91c6540..ad6a628 100644
--- a/src/bfs.h
+++ b/src/bfs.h
@@ -33,10 +33,15 @@
#ifndef BFS_COMMAND
# define BFS_COMMAND "bfs"
#endif
+
#ifndef BFS_HOMEPAGE
# define BFS_HOMEPAGE "https://tavianator.com/projects/bfs.html"
#endif
+#ifndef BFS_LINT
+# define BFS_LINT false
+#endif
+
// This is a symbol instead of a literal so we don't have to rebuild everything
// when the version number changes
extern const char bfs_version[];
diff --git a/src/fsade.c b/src/fsade.c
index 30b3018..dfdf125 100644
--- a/src/fsade.c
+++ b/src/fsade.c
@@ -36,6 +36,13 @@
# define BFS_USE_XATTR true
#endif
+#ifndef BFS_USE_EXTATTR
+# define BFS_USE_EXTATTR false
+#endif
+#ifndef BFS_USE_XATTR
+# define BFS_USE_XATTR false
+#endif
+
/**
* Many of the APIs used here don't have *at() variants, but we can try to
* emulate something similar if /proc/self/fd is available.
--
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