define GOMAXPROCS to control parallel go build

diff --git a/macros.go b/macros.go
index 07efe21cd35d31d75562f9c886413f966ca53769..fcc1893575cf800cb2adda3fa5163739ce433a32 100644 (file)
--- a/macros.go
+++ b/macros.go
@@ -31,5 +31,6 @@
 %ifarch mips mips64 ppc64 ppc64le riscv64 s390x \
        GOARCH=${GOARCH-%{_arch}} \\\
 %endif \
+       %{?__jobs:GOMAXPROCS=%{__jobs}} \\\
        GOOS=${GOOS-linux} \\\
        /usr/bin/go