[Qemu-devel] [PATCH RFC] linux-user: peform __SIGRTMIN hack only when __SIGRTMIN is defined

[Felix Janda <felix.janda@posteo.de>]

This fixes a compilation error with the musl c library.
---
I don't really understand the purpose of the hack, which was
introduced in

http://git.qemu.org/?p=qemu.git;a=commit;h=624f7979058b84cbf81c76d45f302ce757b213ca

but musl does not have a separate thread library (it is included in
libc.so), so I doubt that the hack is applies to it.
---
 linux-user/signal.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/linux-user/signal.c b/linux-user/signal.c
index c750053..c89f83d 100644
--- a/linux-user/signal.c
+++ b/linux-user/signal.c
@@ -73,12 +73,14 @@ static uint8_t host_to_target_signal_table[_NSIG] = {
     [SIGPWR] = TARGET_SIGPWR,
     [SIGSYS] = TARGET_SIGSYS,
     /* next signals stay the same */
+#ifdef __SIGRTMIN
     /* Nasty hack: Reverse SIGRTMIN and SIGRTMAX to avoid overlap with
        host libpthread signals.  This assumes no one actually uses SIGRTMAX :-/
        To fix this properly we need to do manual signal delivery multiplexed
        over a single host signal.  */
     [__SIGRTMIN] = __SIGRTMAX,
     [__SIGRTMAX] = __SIGRTMIN,
+#endif
 };
 static uint8_t target_to_host_signal_table[_NSIG];
 
-- 
2.7.3