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From: Jules Maselbas <jmaselbas@zdiv.net>
To: musl@lists.openwall.com
Cc: Jules Maselbas <jmaselbas@zdiv.net>
Subject: [musl] [PATCH v2] prevent from redefining __STDC_UTF_{16,32}__ macros
Date: Thu, 25 Jan 2024 15:14:40 +0100	[thread overview]
Message-ID: <20240125141440.13906-1-jmaselbas@zdiv.net> (raw)

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


             reply	other threads:[~2024-01-25 14:15 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-01-25 14:14 Jules Maselbas [this message]
2024-02-26  2:17 ` Rich Felker
2024-02-26  3:47   ` Gabriel Ravier
2024-02-26  7:14     ` Jens Gustedt
2024-02-26 14:36       ` Rich Felker

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