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authorPieter Wuille <pieter.wuille@gmail.com>2019-10-28 10:42:25 -0700
committerPieter Wuille <pieter.wuille@gmail.com>2019-11-12 15:35:22 -0800
commita81c494b4c9a8c2f1a319a03375826f12863706f (patch)
tree89c230f261ae7c7ab3125d53b61ae69d945e77e3 /configure.ac
parent2554c1b81bb8c40e1989025c6f18e7935720b156 (diff)
Use sysctl for seeding on MacOS/BSD
Diffstat (limited to 'configure.ac')
-rw-r--r--configure.ac14
1 files changed, 13 insertions, 1 deletions
diff --git a/configure.ac b/configure.ac
index 8bde6d9bc4..e1db71a7bf 100644
--- a/configure.ac
+++ b/configure.ac
@@ -788,7 +788,7 @@ if test x$TARGET_OS = xdarwin; then
AX_CHECK_LINK_FLAG([[-Wl,-dead_strip]], [LDFLAGS="$LDFLAGS -Wl,-dead_strip"])
fi
-AC_CHECK_HEADERS([endian.h sys/endian.h byteswap.h stdio.h stdlib.h unistd.h strings.h sys/types.h sys/stat.h sys/select.h sys/prctl.h])
+AC_CHECK_HEADERS([endian.h sys/endian.h byteswap.h stdio.h stdlib.h unistd.h strings.h sys/types.h sys/stat.h sys/select.h sys/prctl.h sys/sysctl.h vm/vm_param.h sys/vmmeter.h sys/resources.h])
# FD_ZERO may be dependent on a declaration of memcpy, e.g. in SmartOS
# check that it fails to build without memcpy, then that it builds with
@@ -948,6 +948,18 @@ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <unistd.h>
[ AC_MSG_RESULT(no)]
)
+AC_MSG_CHECKING(for sysctl)
+AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
+ #include <sys/sysctl.h>]],
+ [[ static const int name[2] = {CTL_KERN, KERN_VERSION};
+ #ifdef __linux__
+ #error "Don't use sysctl on Linux, it's deprecated even when it works"
+ #endif
+ sysctl(name, 2, nullptr, nullptr, nullptr, 0); ]])],
+ [ AC_MSG_RESULT(yes); AC_DEFINE(HAVE_SYSCTL, 1,[Define this symbol if the BSD sysctl() is available]) ],
+ [ AC_MSG_RESULT(no)]
+)
+
AC_MSG_CHECKING(for sysctl KERN_ARND)
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
#include <sys/sysctl.h>]],