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-rw-r--r--qmake/generators/win32/msvc_objectmodel.cpp4
1 files changed, 4 insertions, 0 deletions
diff --git a/qmake/generators/win32/msvc_objectmodel.cpp b/qmake/generators/win32/msvc_objectmodel.cpp
index f8e67718f7..74a0a20ea2 100644
--- a/qmake/generators/win32/msvc_objectmodel.cpp
+++ b/qmake/generators/win32/msvc_objectmodel.cpp
@@ -2397,7 +2397,11 @@ bool VCFilter::addExtraCompiler(const VCFilterFile &info)
if (!CustomBuildTool.Description.isEmpty())
CustomBuildTool.Description += ", ";
CustomBuildTool.Description += cmd_name;
+ // Execute custom build steps in an environment variable scope to prevent unwanted
+ // side effects for downstream build steps
+ CustomBuildTool.CommandLine += QLatin1String("setlocal");
CustomBuildTool.CommandLine += VCToolBase::fixCommandLine(cmd.trimmed());
+ CustomBuildTool.CommandLine += QLatin1String("endlocal");
int space = cmd.indexOf(' ');
QFileInfo finf(cmd.left(space));
if (CustomBuildTool.ToolPath.isEmpty())