From ae794d5914d37e575fe75510f5ab2b339843da36 Mon Sep 17 00:00:00 2001
From: Christian Kandeler <christian.kandeler@qt.io>
Date: Thu, 26 Nov 2020 17:30:10 +0100
Subject: [PATCH] MSVC: Also understand the "-D" syntax

... when filtering defines from the compiler command line.

Fixes: QTCREATORBUG-24985
Change-Id: I28b06aa640638578d384f744c63d1430cb4b99bd
Reviewed-by: David Schulz <david.schulz@qt.io>
---
 src/plugins/projectexplorer/msvctoolchain.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/plugins/projectexplorer/msvctoolchain.cpp b/src/plugins/projectexplorer/msvctoolchain.cpp
index 406405ee851..4df88de60bd 100644
--- a/src/plugins/projectexplorer/msvctoolchain.cpp
+++ b/src/plugins/projectexplorer/msvctoolchain.cpp
@@ -592,10 +592,10 @@ Macros MsvcToolChain::msvcPredefinedMacros(const QStringList &cxxflags,
 
     QStringList toProcess;
     for (const QString &arg : cxxflags) {
-        if (arg.startsWith(QLatin1String("/D"))) {
+        if (arg.startsWith("/D") || arg.startsWith("-D")) {
             const QString define = arg.mid(2);
             predefinedMacros.append(Macro::fromKeyValue(define));
-        } else if (arg.startsWith(QLatin1String("/U"))) {
+        } else if (arg.startsWith("/U") || arg.startsWith("-U")) {
             predefinedMacros.append(
                 {arg.mid(2).toLocal8Bit(), ProjectExplorer::MacroType::Undefine});
         } else {