C++: Fix build with BUILD_CPLUSPLUS_TOOLS

Change-Id: If55b14f82752e19f536429ee44688156cd0a84da
Reviewed-by: hjk <hjk@qt.io>

src/tools/cplusplus-ast2png/cplusplus-ast2png.cpp

@@ -38,6 +38,8 @@
 #include <cplusplus/Symbols.h>
 #include <cplusplus/TranslationUnit.h>
 
+#include <utils/hostosinfo.h>
+
 #include "utils.h"
 
 #include <QDir>
@@ -361,7 +363,7 @@ private:
 
 static void createImageFromDot(const QString &inputFile, const QString &outputFile, bool verbose)
 {
-    const QString command = CplusplusToolsUtils::portableExecutableName(QLatin1String("dot"));
+    const QString command = Utils::HostOsInfo::withExecutableSuffix("dot");
     const QStringList arguments = QStringList({"-Tpng", "-o", outputFile, inputFile});
     CplusplusToolsUtils::executeCommand(command, arguments, QString(), verbose);
 }

src/tools/cplusplus-shared/tool.pri

@@ -1,4 +1,4 @@
-QTC_LIB_DEPENDS += cplusplus
+QTC_LIB_DEPENDS += cplusplus utils
 
 include(../../../qtcreator.pri)
 

src/tools/cplusplus-shared/utils.h

@@ -31,7 +31,6 @@
 
 namespace CplusplusToolsUtils {
 
-QString portableExecutableName(const QString &executable);
 void executeCommand(const QString &command, const QStringList &arguments, const QString &outputFile,
                     bool verbose = false);