ceph.spec.in: use RPM_BUILD_NCPUS for number of jobs

this env variable is defined by /usr/lib/rpm/macros. let's used it
instead of inventing our own version.

Signed-off-by: Kefu Chai <kchai@redhat.com>

diff --git a/ceph.spec.in b/ceph.spec.in
index 949ccae7cafe15dea4b3f1e398200cb577906a4f..da419f4c49083b16ea5a281698cad2ddfbdd971e 100644 (file)
--- a/ceph.spec.in
+++ b/ceph.spec.in
@@ -109,6 +109,27 @@
 %global _source_payload w7T%{_smp_build_ncpus}.xzdio
 %global _binary_payload w7T%{_smp_build_ncpus}.xzdio
 
+# Parallel build settings ...
+CEPH_SMP_NCPUS=$(RPM_BUILD_NCPUS)
+%if 0%{?__isa_bits} == 32
+# 32-bit builds can use 3G memory max, which is not enough even for -j2
+CEPH_SMP_NCPUS="1"
+%endif
+# do not eat all memory
+echo "Available memory:"
+free -h
+echo "System limits:"
+ulimit -a
+if test -n "$CEPH_SMP_NCPUS" -a "$CEPH_SMP_NCPUS" -gt 1 ; then
+    mem_per_process=2500
+    max_mem=$(LANG=C free -m | sed -n "s|^Mem: *\([0-9]*\).*$|\1|p")
+    max_jobs="$(($max_mem / $mem_per_process))"
+    test "$CEPH_SMP_NCPUS" -gt "$max_jobs" && CEPH_SMP_NCPUS="$max_jobs" && echo "Warning: Reducing build parallelism to -j$max_jobs because of memory limits"
+    test "$CEPH_SMP_NCPUS" -le 0 && CEPH_SMP_NCPUS="1" && echo "Warning: Not using parallel build at all because of memory limits"
+fi
+export CEPH_SMP_NCPUS
+export CEPH_MFLAGS_JOBS="-j$CEPH_SMP_NCPUS"
+
 #################################################################################
 # main package definition
 #################################################################################
@@ -1189,28 +1210,6 @@ export LDFLAGS="$RPM_LD_FLAGS"
 export CXXFLAGS=$(echo $RPM_OPT_FLAGS | sed -e 's/-Wp,-D_FORTIFY_SOURCE=2//g')
 %endif
 
-# Parallel build settings ...
-CEPH_MFLAGS_JOBS="%{?_smp_mflags}"
-CEPH_SMP_NCPUS=$(echo "$CEPH_MFLAGS_JOBS" | sed 's/-j//')
-%if 0%{?__isa_bits} == 32
-# 32-bit builds can use 3G memory max, which is not enough even for -j2
-CEPH_SMP_NCPUS="1"
-%endif
-# do not eat all memory
-echo "Available memory:"
-free -h
-echo "System limits:"
-ulimit -a
-if test -n "$CEPH_SMP_NCPUS" -a "$CEPH_SMP_NCPUS" -gt 1 ; then
-    mem_per_process=2500
-    max_mem=$(LANG=C free -m | sed -n "s|^Mem: *\([0-9]*\).*$|\1|p")
-    max_jobs="$(($max_mem / $mem_per_process))"
-    test "$CEPH_SMP_NCPUS" -gt "$max_jobs" && CEPH_SMP_NCPUS="$max_jobs" && echo "Warning: Reducing build parallelism to -j$max_jobs because of memory limits"
-    test "$CEPH_SMP_NCPUS" -le 0 && CEPH_SMP_NCPUS="1" && echo "Warning: Not using parallel build at all because of memory limits"
-fi
-export CEPH_SMP_NCPUS
-export CEPH_MFLAGS_JOBS="-j$CEPH_SMP_NCPUS"
-
 env | sort
 
 mkdir build