Check if _POSIX_C_SOURCE is defined

lealem47 · lealem47 · commit d9b934323ae2 · 2026-02-12T18:13:29.000-07:00
diff --git a/wolfcrypt/src/wolfentropy.c b/wolfcrypt/src/wolfentropy.c
@@ -131,7 +131,8 @@ static WC_INLINE word64 Entropy_TimeHiRes(void)
 
     return cnt;
 }
-#elif !defined(ENTROPY_MEMUSE_THREAD) && (_POSIX_C_SOURCE >= 199309L)
+#elif !defined(ENTROPY_MEMUSE_THREAD) && defined(_POSIX_C_SOURCE) && \
+    (_POSIX_C_SOURCE >= 199309L)
 /* Get the high resolution time counter.
  *
  * @return  64-bit time that is the nanoseconds of current time.

Original file line number	Diff line number	Diff line change
`@@ -131,7 +131,8 @@ static WC_INLINE word64 Entropy_TimeHiRes(void)`
`131`	`131`
`132`	`132`	`return cnt;`
`133`	`133`	`}`
`134`		`-#elif !defined(ENTROPY_MEMUSE_THREAD) && (_POSIX_C_SOURCE >= 199309L)`
	`134`	`+#elif !defined(ENTROPY_MEMUSE_THREAD) && defined(_POSIX_C_SOURCE) && \`
	`135`	`+ (_POSIX_C_SOURCE >= 199309L)`
`135`	`136`	`/* Get the high resolution time counter.`
`136`	`137`	`*`
`137`	`138`	`* @return 64-bit time that is the nanoseconds of current time.`