Makefile.PL: check `getconf NPROCESSORS_ONLN', too

NetBSD and OpenBSD getconf(1) don't accept a leading underscore,
while glibc getconf(1) only accepts the leading underscore
(`_NPROCESSORS_ONLN').  FreeBSD getconf(1) accepts both variants.

diff --git a/Makefile.PL b/Makefile.PL
index 5a5628badc3eb5e4eb4dfb3fc617b2b8e9ec7582..d065241041fd4c7cc44e428dea8c07e9bfe095da 100644 (file)
--- a/Makefile.PL
+++ b/Makefile.PL
@@ -196,7 +196,8 @@ WriteMakefile(
 );
 
 sub MY::postamble {
-       my $N = (`{ getconf _NPROCESSORS_ONLN || nproc; } 2>/dev/null` || 1);
+       my $N = (`{ getconf _NPROCESSORS_ONLN || getconf NPROCESSORS_ONLN ||
+               gnproc || nproc; } 2>/dev/null` || 1);
        $N += 1; # account for sleeps in some tests (and makes an IV)
        <<EOF;
 PROVE = prove