From 789b1bcbb60278b335a81df416be1d5a663d7e30 Mon Sep 17 00:00:00 2001
From: Don-Duong Quach <geekrelief@gmail.com>
Date: Tue, 14 Jun 2022 23:20:34 -0700
Subject: [PATCH] Fixes #19883 so genscript works with vcc (#19893)

---
 compiler/extccomp.nim | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/compiler/extccomp.nim b/compiler/extccomp.nim
index 515c7ba29f..5c074d2846 100644
--- a/compiler/extccomp.nim
+++ b/compiler/extccomp.nim
@@ -434,7 +434,13 @@ proc noAbsolutePaths(conf: ConfigRef): bool {.inline.} =
   # really: Cross compilation from Linux to Linux for example is entirely
   # reasonable.
   # `optGenMapping` is included here for niminst.
-  result = conf.globalOptions * {optGenScript, optGenMapping} != {}
+  # We use absolute paths for vcc / cl, see issue #19883.
+  let options =
+    if conf.cCompiler == ccVcc:
+      {optGenMapping}
+    else:
+      {optGenScript, optGenMapping}
+  result = conf.globalOptions * options != {}
 
 proc cFileSpecificOptions(conf: ConfigRef; nimname, fullNimFile: string): string =
   result = conf.compileOptions
@@ -921,7 +927,7 @@ proc callCCompiler*(conf: ConfigRef) =
         objfiles.add(' ')
         objfiles.add(quoteShell(objFile))
       let mainOutput = if optGenScript notin conf.globalOptions: conf.prepareToWriteOutput
-                       else: AbsoluteFile(conf.projectName)
+                       else: AbsoluteFile(conf.outFile)
 
       linkCmd = getLinkCmd(conf, mainOutput, objfiles, removeStaticFile = true)
       extraCmds = getExtraCmds(conf, mainOutput)