[ptxdist] [PATCH] Support reading number of CPUs on Darwin and BSDs

[ptxdist] [PATCH] Support reading number of CPUs on Darwin and BSDs

[Bernhard Walle]

Tested on Mac OS 10.7 (Lion).

Signed-off-by: Bernhard Walle <bernhard@bwalle.de>
---
v2: Use /usr/sbin/sysctl instead of relying on the $PATH and don't check
    for the operating system but just try it out.

 bin/ptxdist |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/bin/ptxdist b/bin/ptxdist
index 74a52ad..52e9c76 100755
--- a/bin/ptxdist
+++ b/bin/ptxdist
@@ -2088,12 +2088,14 @@ setup_config() {
 	local pmf_extern="-j1"
 	local cpus
 
+	# this one is for Linux
 	if [ -r /proc/cpuinfo ]; then
 		cpus="$(egrep '^(processor|cpu	)' /proc/cpuinfo | wc -l)"
 		if [ ${cpus} -eq 0 ]; then
 			cpus=1
 		fi
-	else
+	# and this one is tested on Darwin and should work on BSDs
+	elif ! cpus="$(/usr/sbin/sysctl -n hw.ncpu)" 2> /dev/null; then
 		cpus=1
 	fi
 	local pmf_intern="-j$(( ${cpus} * 2 ))"
-- 
1.7.7.4


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