C++ scanner: Register for rc files

Windows resource files can have #include statements. This was either
overlooked from the beginning or we broke it at some point.

Change-Id: I3483e8caf352f557768429cf3c4f9b3293fec38d
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>

4 files changed, 28 insertions, 6 deletions

diff --git a/tests/auto/api/testdata/rc/rc.qbs b/tests/auto/api/testdata/rc/rc.qbs
index 5b49c5de9..212adc4af 100644
--- a/tests/auto/api/testdata/rc/rc.qbs
+++ b/tests/auto/api/testdata/rc/rc.qbs
@@ -5,6 +5,8 @@ Application {
 
     Depends { name: 'cpp' }
 
+    cpp.includePaths: "subdir"
+
     files: [
         "main.cpp",
         "test.rc"
diff --git a/tests/auto/api/testdata/rc/subdir/rc-include.h b/tests/auto/api/testdata/rc/subdir/rc-include.h
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/tests/auto/api/testdata/rc/subdir/rc-include.h
diff --git a/tests/auto/api/testdata/rc/test.rc b/tests/auto/api/testdata/rc/test.rc
index a8e5fd39b..ff7a72003 100644
--- a/tests/auto/api/testdata/rc/test.rc
+++ b/tests/auto/api/testdata/rc/test.rc
@@ -1,5 +1,7 @@
 #define IDR_VERSION1 1
 
+#include <rc-include.h>
+
 IDR_VERSION1 VERSIONINFO
 FILEVERSION 1,0,0,0
 PRODUCTVERSION 1,0,0,0
diff --git a/tests/auto/api/tst_api.cpp b/tests/auto/api/tst_api.cpp
index bec33d1dd..228b0e078 100644
--- a/tests/auto/api/tst_api.cpp
+++ b/tests/auto/api/tst_api.cpp
@@ -2380,12 +2380,30 @@ void TestApi::rc()
 {
     BuildDescriptionReceiver bdr;
     ProcessResultReceiver prr;
-    const qbs::ErrorInfo errorInfo = doBuildProject("rc", &bdr, &prr);
-    if (errorInfo.hasError())
-        qDebug() << prr.output;
-    VERIFY_NO_ERROR(errorInfo);
-    const bool rcFileWasCompiled = bdr.descriptions.contains("compiling test.rc");
-    QCOMPARE(rcFileWasCompiled, qbs::Internal::HostOsInfo::isWindowsHost());
+    const auto buildRc = [this, &bdr, &prr]() {
+        bdr.descriptions.clear();
+        bdr.descriptionLines.clear();
+        prr.output.clear();
+        prr.results.clear();
+        const qbs::ErrorInfo errorInfo = doBuildProject("rc", &bdr, &prr);
+        if (errorInfo.hasError())
+            qDebug() << prr.output;
+        return errorInfo;
+    };
+    const auto rcFileWasCompiled = [&bdr]() {
+        return bdr.descriptions.contains("compiling test.rc");
+    };
+    qbs::ErrorInfo error = buildRc();
+    VERIFY_NO_ERROR(error);
+    QCOMPARE(rcFileWasCompiled(), qbs::Internal::HostOsInfo::isWindowsHost());
+    WAIT_FOR_NEW_TIMESTAMP();
+    error = buildRc();
+    VERIFY_NO_ERROR(error);
+    QVERIFY(!rcFileWasCompiled());
+    touch("subdir/rc-include.h");
+    error = buildRc();
+    VERIFY_NO_ERROR(error);
+    QCOMPARE(rcFileWasCompiled(), qbs::Internal::HostOsInfo::isWindowsHost());
 }
 
 void TestApi::referencedFileErrors()