Fix syncronization issues with "Multiple libraries found"

Signed-off-by: Martino Facchin <[email protected]>

Author: facchinm

src/arduino.cc/arduino-builder/main.go

@@ -173,12 +173,6 @@ func main() {
 		return
 	}
 
-	if *jobsFlag > 0 {
-		runtime.GOMAXPROCS(*jobsFlag)
-	} else {
-		runtime.GOMAXPROCS(runtime.NumCPU())
-	}
-
 	ctx := &types.Context{}
 
 	if *buildOptionsFileFlag != "" {
@@ -196,6 +190,14 @@ func main() {
 		ctx.InjectBuildOptions(buildOptions)
 	}
 
+	// Parallel Jobs flag
+	if *jobsFlag > 0 {
+		ctx.Jobs = *jobsFlag
+	} else {
+		ctx.Jobs = runtime.NumCPU()
+	}
+	runtime.GOMAXPROCS(ctx.Jobs)
+
 	// FLAG_HARDWARE
 	if hardwareFolders, err := toSliceOfUnquoted(hardwareFoldersFlag); err != nil {
 		printCompleteError(err)

src/arduino.cc/builder/print_used_and_not_used_libraries.go

@@ -53,6 +53,10 @@ func (s *PrintUsedAndNotUsedLibraries) Run(ctx *types.Context) error {
 		return nil
 	}
 
+	if ctx.Jobs > 1 {
+		time.Sleep(100 * time.Millisecond)
+	}
+
 	logger := ctx.GetLogger()
 	libraryResolutionResults := ctx.LibrariesResolutionResults
 
@@ -64,7 +68,5 @@ func (s *PrintUsedAndNotUsedLibraries) Run(ctx *types.Context) error {
 		}
 	}
 
-	time.Sleep(100 * time.Millisecond)
-
 	return nil
 }

src/arduino.cc/builder/types/context.go

@@ -86,6 +86,9 @@ type Context struct {
 
 	// ReadFileAndStoreInContext command
 	FileToRead string
+
+	// Max jobs
+	Jobs int
 }
 
 func (ctx *Context) ExtractBuildOptions() properties.Map {