Fix CmakeList.txt $(...) compiler flags

This fixes the issue: #516

newt/toolchain/compiler.go

@@ -23,6 +23,7 @@ import (
  "fmt"
  "io/ioutil"
  "mynewt.apache.org/newt/newt/cfgv"
+ "mynewt.apache.org/newt/newt/pkg"
  "os"
  "path"
  "path/filepath"
@@ -315,12 +316,50 @@ func loadFlags(yc ycfg.YCfg, settings *cfgv.Settings, key string, cfg *cfgv.Sett
  return flags
 }
 
+func getConfigMap(compilerDir string) (map[string]string, error) {
+ dstMap := make(map[string]string)
+
+ scfg, err := config.ReadFile(compilerDir + "/" + pkg.SYSCFG_YAML_FILENAME)
+ if err != nil {
+ return nil, err
+ }
+
+ for _, setting := range scfg.AllSettings() {
+ aSetting, ok := setting.(map[interface{}]interface{})
+ if ok {
+ for settingName, settingFields := range aSetting {
+ aSettingName := settingName.(string)
+ aSettingFields, ok := settingFields.(map[interface{}]interface{})
+ if ok {
+ for settingField, fieldValue := range aSettingFields {
+ if settingField == "value" {
+ aFieldValue, ok := fieldValue.(string)
+ if ok {
+ dstMap[aSettingName] = aFieldValue
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+
+ return dstMap, nil
+}
+
 func (c *Compiler) load(compilerDir string, buildProfile string, cfg *cfgv.Settings) error {
  yc, err := config.ReadFile(compilerDir + "/" + COMPILER_FILENAME)
  if err != nil {
  return err
  }
 
+ if cfg == nil {
+ cfgMap, err := getConfigMap(compilerDir)
+ if err == nil {
+ cfg = cfgv.NewSettingsFromMap(cfgMap)
+ }
+ }
+
  settings := cfgv.NewSettingsFromMap(map[string]string{
  buildProfile: "1",
  strings.ToUpper(runtime.GOOS): "1",