[PATCH 3/9] configure/meson: Only check sys/signal.h on non-Linux

[Jiaxun Yang]

signal.h is equlevant of sys/signal.h on Linux, musl would complain
wrong usage of sys/signal.h.

In file included from /builds/FlyGoat/qemu/include/qemu/osdep.h:108,
                 from ../tests/qemu-iotests/socket_scm_helper.c:13:
/usr/include/sys/signal.h:1:2: error: #warning redirecting incorrect #include 
<sys/signal.h> to <signal.h> [-Werror=cpp]
    1 | #warning redirecting incorrect #include <sys/signal.h> to <signal.h>
      |  ^~~~~~~

Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
---
 meson.build | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/meson.build b/meson.build
index 372576f82c..1ef8722b3a 100644
--- a/meson.build
+++ b/meson.build
@@ -841,7 +841,10 @@ config_host_data.set('HAVE_DRM_H', 
cc.has_header('libdrm/drm.h'))
 config_host_data.set('HAVE_PTY_H', cc.has_header('pty.h'))
 config_host_data.set('HAVE_SYS_IOCCOM_H', cc.has_header('sys/ioccom.h'))
 config_host_data.set('HAVE_SYS_KCOV_H', cc.has_header('sys/kcov.h'))
-config_host_data.set('HAVE_SYS_SIGNAL_H', cc.has_header('sys/signal.h'))
+if targetos != 'linux'
+  # signal.h is equlevant of sys/signal.h on Linux
+  config_host_data.set('HAVE_SYS_SIGNAL_H', cc.has_header('sys/signal.h'))
+endif
 
 ignored = ['CONFIG_QEMU_INTERP_PREFIX'] # actually per-target
 arrays = ['CONFIG_AUDIO_DRIVERS', 'CONFIG_BDRV_RW_WHITELIST', 
'CONFIG_BDRV_RO_WHITELIST']
-- 
2.29.2