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meson: unbreak sysctl.h detection on BSDs 

Code:
 #include <sys/sysctl.h>
Compiler stdout:

Compiler stderr:
 In file included from testfile.c:1:
/usr/include/sys/sysctl.h:1184:40: error: unknown type name 'size_t'
int     sysctl(const int *, u_int, void *, size_t *, const void *, size_t);
                                           ^
/usr/include/sys/sysctl.h:1185:40: error: unknown type name 'size_t'
int     sysctlbyname(const char *, void *, size_t *, const void *, size_t);
                                           ^
/usr/include/sys/sysctl.h:1186:42: error: unknown type name 'size_t'
int     sysctlnametomib(const char *, int *, size_t *);
                                             ^
3 errors generated.

Checking if "sys/sysctl.h" compiles: NO

<https://gitlab.freedesktop.org/mesa/drm/-/commit/1f8ada802391>
<https://gitlab.freedesktop.org/mesa/drm/-/commit/4083e8f2c659>

Reviewed-by: Niclas Zeising <zeising@daemonic.se>
Reviewed-by: Eric Engestrom <eric@engestrom.ch>
Cc: mesa-stable
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5462>
This commit is contained in:
Jan Beich 2020-05-30 22:41:48 +00:00 committed by Marge Bot
parent 2a80f96b51
commit 63b81c9915
1 changed files with 8 additions and 1 deletions
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9
meson.build
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@ -1202,7 +1202,14 @@ if (cc.has_header_symbol('sys/mkdev.h', 'major') and
pre_args += '-DMAJOR_IN_MKDEV'
endif
foreach h : ['xlocale.h', 'sys/sysctl.h', 'linux/futex.h', 'endian.h', 'dlfcn.h', 'execinfo.h', 'sys/shm.h', 'cet.h']
if not ['linux'].contains(host_machine.system())
# Deprecated on Linux and requires <sys/types.h> on FreeBSD and OpenBSD
if cc.check_header('sys/sysctl.h', prefix : '#include <sys/types.h>')
pre_args += '-DHAVE_SYS_SYSCTL_H'
endif
endif
foreach h : ['xlocale.h', 'linux/futex.h', 'endian.h', 'dlfcn.h', 'execinfo.h', 'sys/shm.h', 'cet.h']
if cc.check_header(h)
pre_args += '-DHAVE_@0@'.format(h.to_upper().underscorify())
endif