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Message-ID: <20240125141440.13906-1-jmaselbas@zdiv.net>
Date: Thu, 25 Jan 2024 15:14:40 +0100
From: Jules Maselbas <jmaselbas@...v.net>
To: musl@...ts.openwall.com
Cc: Jules Maselbas <jmaselbas@...v.net>
Subject: [PATCH v2] prevent from redefining __STDC_UTF_{16,32}__ macros
Undefine any previous __STDC_UTF_{16,32}__ macros before defining
them to prenvent any warnings of redefining macros.
---
v2:
- changed `#if !define(...)` guard to `#undef`, as suggested by Rich Felker
I encountered this "issue" trying to compile a program with the -isystem
option to override toolchain/installed musl headers with one from source.
include/stdc-predef.h | 3 +++
1 file changed, 3 insertions(+)
diff --git a/include/stdc-predef.h b/include/stdc-predef.h
index af1a2799..5ccd884d 100644
--- a/include/stdc-predef.h
+++ b/include/stdc-predef.h
@@ -7,7 +7,10 @@
#define __STDC_IEC_559__ 1
#endif
+#undef __STDC_UTF_16__
#define __STDC_UTF_16__ 1
+
+#undef __STDC_UTF_32__
#define __STDC_UTF_32__ 1
#endif
--
2.43.0
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