diff options
Diffstat (limited to 'm4/lc_cpucores.m4')
| -rw-r--r-- | m4/lc_cpucores.m4 | 57 |
1 files changed, 0 insertions, 57 deletions
diff --git a/m4/lc_cpucores.m4 b/m4/lc_cpucores.m4 deleted file mode 100644 index 52f7c985..00000000 --- a/m4/lc_cpucores.m4 +++ /dev/null @@ -1,57 +0,0 @@ -dnl ########################################################################### -dnl -dnl lc_CPUCORES - Check how to find out the number of online CPU cores -dnl -dnl Check how to find out the number of available CPU cores in the system. -dnl sysconf(_SC_NPROCESSORS_ONLN) works on most systems, except that BSDs -dnl use sysctl(). -dnl -dnl ########################################################################### -dnl -dnl Author: Lasse Collin -dnl -dnl This file has been put into the public domain. -dnl You can do whatever you want with this file. -dnl -dnl ########################################################################### -AC_DEFUN([lc_CPUCORES], [ -AC_MSG_CHECKING([how to detect the number of available CPU cores]) -AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ -#include <unistd.h> -int -main(void) -{ - long i; - i = sysconf(_SC_NPROCESSORS_ONLN); - return 0; -} -]])], [ - AC_DEFINE([HAVE_CPUCORES_SYSCONF], [1], - [Define to 1 if the number of available CPU cores can be - detected with sysconf(_SC_NPROCESSORS_ONLN).]) - AC_MSG_RESULT([sysconf]) -], [ -AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ -#include <sys/types.h> -#ifdef HAVE_SYS_PARAM_H -# include <sys/param.h> -#endif -#include <sys/sysctl.h> -int -main(void) -{ - int name[2] = { CTL_HW, HW_NCPU }; - int cpus; - size_t cpus_size = sizeof(cpus); - sysctl(name, 2, &cpus, &cpus_size, NULL, 0); - return 0; -} -]])], [ - AC_DEFINE([HAVE_CPUCORES_SYSCTL], [1], - [Define to 1 if the number of available CPU cores can be - detected with sysctl().]) - AC_MSG_RESULT([sysctl]) -], [ - AC_MSG_RESULT([unknown]) -])]) -])dnl lc_CPUCORES |