| diff --git a/source/common/uposixdefs.h b/source/common/uposixdefs.h | |
| index 23c3f6d4..3770a335 100644 | |
| --- a/source/common/uposixdefs.h | |
| +++ b/source/common/uposixdefs.h | |
| @@ -33,7 +33,7 @@ | |
| */ | |
| #ifdef _XOPEN_SOURCE | |
| /* Use the predefined value. */ | |
| -#else | |
| +#elif !defined(ICU_IS_IN_FUCHSIA) || !defined(__APPLE__) | |
| /* | |
| * Version 6.0: | |
| * The Open Group Base Specifications Issue 6 (IEEE Std 1003.1, 2004 Edition) |