Bug fix for ncpus if hyperthreading turned off in linuxrefs/pull/62/head

1 files changed, 11 insertions, 3 deletions

diff --git a/configure.in b/configure.in
index 43fe4ad..2be2a1c 100644
--- a/configure.in
+++ b/configure.in
@@ -1270,12 +1270,20 @@ fi
 
 AC_MSG_CHECKING([for number of cpus])
 AC_TRY_COMPILE([#include <unistd.h>],
-        [sysconf(_SC_NPROCESSORS_CONF) > 0;],
-        AC_DEFINE(HAVE_SYSCONF__SC_NPROCESSORS_CONF,1,[Define if sysconf returns number of cpus])
-        AC_MSG_RESULT([sysconf(_SC_NPROCESSORS_CONF)]),
+        [sysconf(_SC_NPROCESSORS_ONLN) > 0;],
+        AC_DEFINE(HAVE_SYSCONF__SC_NPROCESSORS_ONLN,1,[Define if sysconf returns number of cpus])
+        AC_MSG_RESULT([sysconf(_SC_NPROCESSORS_ONLN)]),
         AC_MSG_RESULT([cannot calculate])
         )
 
+AC_TRY_COMPILE([#include <unistd.h>],
+        [sysconf(_SC_NPROCESSORS_CONF) > 0;],
+        AC_DEFINE(HAVE_SYSCONF__SC_NPROCESSORS_CONF,1,[Define if sysconf returns number of cpus])
+        AC_MSG_RESULT([sysconf(_SC_NPROCESSORS_CONF)]),
+        AC_MSG_RESULT([cannot calculate])
+        )
+
+
 AC_PATH_PROG(PATH_TO_UPTIME,uptime)
 AC_ARG_WITH(uptime_command,
             ACX_HELP_STRING([--with-uptime-command=PATH],