Replace config-time define HOST_WORDS_BIGENDIAN

Replace a config-time define with a compile time condition
define (compatible with clang and gcc) that must be declared prior to
its usage. This avoids having a global configure time define, but also
prevents from bad usage, if the config header wasn't included before.

This can help to make some code independent from qemu too.

gcc supports __BYTE_ORDER__ from about 4.6 and clang from 3.2.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
[ For the s390x parts I'm involved in ]
Acked-by: Halil Pasic <pasic@linux.ibm.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220323155743.1585078-7-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/ui/vnc.c b/ui/vnc.c
index 310a873c21..5cbeebb8d1 100644
--- a/ui/vnc.c
+++ b/ui/vnc.c
@@ -2340,7 +2340,7 @@ static void pixel_format_message (VncState *vs) {
     vnc_write_u8(vs, vs->client_pf.bits_per_pixel); /* bits-per-pixel */
     vnc_write_u8(vs, vs->client_pf.depth); /* depth */
 
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
     vnc_write_u8(vs, 1);             /* big-endian-flag */
 #else
     vnc_write_u8(vs, 0);             /* big-endian-flag */