From c733c44f3636fccd086bcbef8b3bc81602a8fa49 Mon Sep 17 00:00:00 2001 From: PHO Date: Thu, 23 Feb 2012 23:11:15 +0900 Subject: [PATCH] Better way to detect the number of CPUs. --- build-hc-pkg | 20 +++++--------------- 1 file changed, 5 insertions(+), 15 deletions(-) diff --git a/build-hc-pkg b/build-hc-pkg index 14ef15e..e0e55f5 100755 --- a/build-hc-pkg +++ b/build-hc-pkg @@ -12,21 +12,11 @@ function detect_platform_type () { } function detect_number_of_cpus () { - local -r platform=$(detect_platform_type) - - case "$platform" in - *-*-darwin*) - ioreg -r -c IOCPU | fgrep -c \"IOCPUNumber\" - ;; - *-*-netbsd*) - cat /proc/cpuinfo | grep -cE 'processor[[:space:]]*:' - ;; - *) - echo "WARNING: I don't know how to detect the number of processors on this platform." >&2 - echo "WARNING: GHC will be built using only 1 processor. Expect some slowdown." >&2 - echo 1 - ;; - esac + if ! sysctl -n hw.ncpu; then + echo "WARNING: I don't know how to detect the number of processors on this platform." >&2 + echo "WARNING: GHC will be built using only 1 processor. Expect some slowdown." >&2 + echo 1 + fi } function detect_gnu_tar () { -- 2.40.0