debug: set env var in build stage

Author: siddarthkay

ci/Jenkinsfile.macos

@@ -55,8 +55,6 @@ pipeline {
     NPROC = Runtime.getRuntime().availableProcessors()
     MAKEFLAGS = "V=${params.VERBOSITY} NIM_COMMIT=${params.NIM_COMMIT} -j${env.NPROC}"
     XDG_CACHE_HOME = "${env.WORKSPACE_TMP}/.cache"
-    // Workaround for clang assember https://github.com/OffchainLabs/hashtree/issues/18
-    CFLAGS = "-fno-integrated-as"
   }
 
   stages {
@@ -87,6 +85,10 @@ pipeline {
     }
 
     stage('Build') {
+      environment {
+        // Workaround for clang assember https://github.com/OffchainLabs/hashtree/issues/18
+        CFLAGS = "-fno-integrated-as"
+      }
       steps { timeout(50) {
         sh 'make LOG_LEVEL=TRACE'
       } }