support include paths for the Windows resource compiler

In RC_INCLUDEPATH one can add include paths for the Windows resource
compiler.

Task-number: QTBUG-13776

Change-Id: If1d9ed44097adb7789df03e4ccd4e3b7df9e8d08
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/qmake/generators/win32/msvc_vcproj.cpp b/qmake/generators/win32/msvc_vcproj.cpp
index 1e3f66a9c0..9f14b61f49 100644
--- a/qmake/generators/win32/msvc_vcproj.cpp
+++ b/qmake/generators/win32/msvc_vcproj.cpp
@@ -1072,6 +1072,17 @@ void VcprojGenerator::initResourceTool()
     VCConfiguration &conf = vcProject.Configuration;
     conf.resource.PreprocessorDefinitions = conf.compiler.PreprocessorDefinitions;
 
+    foreach (const ProString &path, project->values("RC_INCLUDEPATH")) {
+        QString fixedPath = fileFixify(path.toQString());
+        if (fileInfo(fixedPath).isRelative()) {
+            if (fixedPath == QStringLiteral("."))
+                fixedPath = QStringLiteral("$(ProjectDir)");
+            else
+                fixedPath.prepend(QStringLiteral("$(ProjectDir)\\"));
+        }
+        conf.resource.AdditionalIncludeDirectories << escapeFilePath(fixedPath);
+    }
+
     // We need to add _DEBUG for the debug version of the project, since the normal compiler defines
     // do not contain it. (The compiler defines this symbol automatically, which is wy we don't need
     // to add it for the compiler) However, the resource tool does not do this.