parallel build uses NCPU jobs instead of NCPU+1

diff --git a/GiNaC.spec.in b/GiNaC.spec.in
index e3aafb746cda81bfc2c7ec64ead199f2d8e30b7b..4fef8ab71e9884c659e7f7d93e2f22647e73e84c 100644 (file)
--- a/GiNaC.spec.in
+++ b/GiNaC.spec.in
@@ -62,8 +62,7 @@ if [ -x /usr/bin/getconf ] ; then
 else  
   NCPU=1
 fi
-PARL=$[ $NCPU + 1 ]
-(make -k -j $PARL; exit 0)
+(make -k -j $NCPU; exit 0)
 make
 
 %install