Merge pull request cretz#12 from vbatts/numJobs

build.go: make jobs to match CPUs available

build.go

@@ -17,6 +17,7 @@ var verbose bool
 var autopointPath string
 var folders = []string{"openssl", "libevent", "zlib", "xz", "tor"}
 var absCurrDir = getAbsCurrDir()
+var numJobs = fmt.Sprintf("-j%d", runtime.NumCPU())
 
 func main() {
 	flag.BoolVar(&verbose, "verbose", false, "Whether to show command output")
@@ -98,7 +99,7 @@ func build(folder string) error {
 		cmds := [][]string{
 			{"sh", "./config", "--prefix=" + pwd + "/dist", "no-shared", "no-dso", "no-zlib"},
 			{"make", "depend"},
-			{"make"},
+			{"make", numJobs},
 			{"make", "install"},
 		}
 		if runtime.GOOS == "windows" {
@@ -115,12 +116,12 @@ func build(folder string) error {
 			{"sh", "./configure", "--prefix=" + pwd + "/dist",
 				"--disable-shared", "--enable-static", "--with-pic", "--disable-samples", "--disable-libevent-regress",
 				"CPPFLAGS=-I../openssl/dist/include", "LDFLAGS=-L../openssl/dist/lib"},
-			{"make"},
+			{"make", numJobs},
 			{"make", "install"},
 		})
 	case "zlib":
 		var env []string
-		cmds := [][]string{{"sh", "./configure", "--prefix=" + pwd + "/dist"}, {"make"}, {"make", "install"}}
+		cmds := [][]string{{"sh", "./configure", "--prefix=" + pwd + "/dist"}, {"make", numJobs}, {"make", "install"}}
 		if runtime.GOOS == "windows" {
 			env = []string{"PREFIX=" + pwd + "/dist", "BINARY_PATH=" + pwd + "/dist/bin",
 				"INCLUDE_PATH=" + pwd + "/dist/include", "LIBRARY_PATH=" + pwd + "/dist/lib"}
@@ -137,7 +138,7 @@ func build(folder string) error {
 			{"sh", "./configure", "--prefix=" + pwd + "/dist", "--disable-shared", "--enable-static",
 				"--disable-doc", "--disable-scripts", "--disable-xz", "--disable-xzdec", "--disable-lzmadec",
 				"--disable-lzmainfo", "--disable-lzma-links"},
-			{"make"},
+			{"make", numJobs},
 			{"make", "install"},
 		})
 	case "tor":
@@ -164,7 +165,7 @@ func build(folder string) error {
 		return runCmds(folder, env, [][]string{
 			{"sh", "-l", "./autogen.sh"},
 			torConf,
-			{"make"},
+			{"make", numJobs},
 			{"make", "install"},
 		})
 	default: