From: Marcus Hähnel marcus.haehnel@kernkonzept.com

Clang also supports the gnu_inline attribute and the __GNUC_STDC_INLINE__ macro (C99 semantics). However, it reports as GCC 4.2 compatible (__GNUC_MINOR__ / __GNUC__) and thus the current defines do not think it can support this.

Add clang as an alternative for this support. Documentation shows that this attribute is supported since at least Clang 8. --- include/sys/cdefs.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/sys/cdefs.h b/include/sys/cdefs.h index 9b3a02177..656548c52 100644 --- a/include/sys/cdefs.h +++ b/include/sys/cdefs.h @@ -320,7 +320,7 @@ inline semantics, unless -fgnu89-inline is used. For -std=gnu99, forcing gnu_inline attribute does not change behavior, but may silence spurious warnings (such as in GCC 4.2). */ -#if !defined __cplusplus || __GNUC_PREREQ (4,3) +#if !defined __cplusplus || __GNUC_PREREQ (4,3) || __CLANG_PREREQ(8,0) # if defined __GNUC_STDC_INLINE__ || defined __GNUC_GNU_INLINE__ || defined __cplusplus # define __extern_inline extern __inline __attribute__ ((__gnu_inline__)) # if __GNUC_PREREQ (4,3)