On OpenBSD we turn off async capabilities due to no ucontext.h.
RT#4379
Reviewed-by: Richard Levitte <levitte@openssl.org>
#define OPENSSL_ASYNC_ARCH_ASYNC_POSIX_H
#include <openssl/e_os2.h>
-#if (defined(OPENSSL_SYS_UNIX) || defined(OPENSSL_SYS_CYGWIN)) && defined(OPENSSL_THREADS) && !defined(OPENSSL_NO_ASYNC) && !defined(__ANDROID__)
+#if (defined(OPENSSL_SYS_UNIX) || defined(OPENSSL_SYS_CYGWIN)) \
+ && defined(OPENSSL_THREADS) && !defined(OPENSSL_NO_ASYNC) \
+ && !defined(__ANDROID__) && !defined(__OpenBSD__)
# include <unistd.h>