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Message-ID: <20250820063422.475286-1-raj.khem@gmail.com>
Date: Tue, 19 Aug 2025 23:34:22 -0700
From: Khem Raj <raj.khem@...il.com>
To: musl@...ts.openwall.com
Cc: nsz@...t70.net,
Khem Raj <raj.khem@...il.com>
Subject: [PATCH] api/unistd: guard optional/obsolete *_PC/*_SC constants for musl
musl does not define some POSIX option macros:
- _SC_XOPEN_UUCP is obsolete and absent on musl
- _PC_TIMESTAMP_RESOLUTION is optional and may be undefined
Build currently fails when these are referenced unconditionally.
Wrap the checks in #ifdef so the test compiles on musl without
claiming support for unavailable names.
Signed-off-by: Khem Raj <raj.khem@...il.com>
---
src/api/unistd.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/src/api/unistd.c b/src/api/unistd.c
index 522ccdc..0de547b 100644
--- a/src/api/unistd.c
+++ b/src/api/unistd.c
@@ -114,7 +114,9 @@ C(_PC_REC_MIN_XFER_SIZE)
C(_PC_REC_XFER_ALIGN)
C(_PC_SYMLINK_MAX)
C(_PC_SYNC_IO)
+#ifdef _PC_TIMESTAMP_RESOLUTION
C(_PC_TIMESTAMP_RESOLUTION)
+#endif
C(_PC_VDISABLE)
C(_SC_2_C_BIND)
C(_SC_2_C_DEV)
@@ -235,7 +237,9 @@ C(_SC_XOPEN_REALTIME_THREADS)
C(_SC_XOPEN_SHM)
C(_SC_XOPEN_STREAMS)
C(_SC_XOPEN_UNIX)
+#ifdef _SC_XOPEN_UUCP
C(_SC_XOPEN_UUCP)
+#endif
C(_SC_XOPEN_VERSION)
C(STDERR_FILENO)
C(STDIN_FILENO)
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