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clang: Fix warning reg. expansion to 'defined' 

Clang produces the following warning. The warning is detailed here:
https://reviews.llvm.org/D15866. Fix the warning.

/home/pranith/devops/code/qemu/hw/display/qxl.c:507:5: warning: macro expansion producing 'defined' has undefined behavior [-Wexpansion-to-defined]
    ^
/home/pranith/devops/code/qemu/include/ui/qemu-spice.h:46:5: note: expanded from macro 'SPICE_NEEDS_SET_MM_TIME'
  (!defined(SPICE_SERVER_VERSION) || (SPICE_SERVER_VERSION < 0xc06))
    ^
/home/pranith/devops/code/qemu/hw/display/qxl.c:1074:5: warning: macro expansion producing 'defined' has undefined behavior [-Wexpansion-to-defined]
    ^
/home/pranith/devops/code/qemu/include/ui/qemu-spice.h:46:5: note: expanded from macro 'SPICE_NEEDS_SET_MM_TIME'
  (!defined(SPICE_SERVER_VERSION) || (SPICE_SERVER_VERSION < 0xc06))

Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Pranith Kumar <bobby.prani@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Pranith Kumar 2016-08-09 15:02:27 -04:00 committed by Paolo Bonzini
parent 435405ac59
commit 2368635d39
1 changed files with 5 additions and 2 deletions
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7
include/ui/qemu-spice.h
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@ -42,8 +42,11 @@ int qemu_spice_set_pw_expire(time_t expires);
int qemu_spice_migrate_info(const char *hostname, int port, int tls_port,
const char *subject);
#define SPICE_NEEDS_SET_MM_TIME \
(!defined(SPICE_SERVER_VERSION) || (SPICE_SERVER_VERSION < 0xc06))
#if !defined(SPICE_SERVER_VERSION) || (SPICE_SERVER_VERSION < 0xc06)
#define SPICE_NEEDS_SET_MM_TIME 1
#else
#define SPICE_NEEDS_SET_MM_TIME 0
#endif
#if SPICE_SERVER_VERSION >= 0x000c02
void qemu_spice_register_ports(void);