Clang: Fix error when including float.h with mingw

Prevent mingw from trying to #include_next a private header from a path
we cannot add to our list of includes.

Fixes: QTCREATORBUG-24251
Task-number: QTCREATORBUG-24027
Change-Id: I18a9db130b9c2265cd208c3506d08d2e1c4cee45
Reviewed-by: Marco Bubke <marco.bubke@qt.io>
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>

1 files changed, 33 insertions, 0 deletions

diff --git a/tests/unit/unittest/compileroptionsbuilder-test.cpp b/tests/unit/unittest/compileroptionsbuilder-test.cpp
index 2a6bfd8462..76fe2be066 100644
--- a/tests/unit/unittest/compileroptionsbuilder-test.cpp
+++ b/tests/unit/unittest/compileroptionsbuilder-test.cpp
@@ -475,6 +475,39 @@ TEST_F(CompilerOptionsBuilder, InsertWrappedQtHeaders)
     ASSERT_THAT(compilerOptionsBuilder.options(), Contains(IsPartOfHeader("wrappedQtHeaders")));
 }
 
+TEST_F(CompilerOptionsBuilder, InsertWrappedMingwHeadersWithNonMingwToolchain)
+{
+    CppTools::CompilerOptionsBuilder builder{
+        projectPart,
+        CppTools::UseSystemHeader::Yes,
+        CppTools::UseTweakedHeaderPaths::Yes,
+        CppTools::UseLanguageDefines::No,
+        CppTools::UseBuildSystemWarnings::No,
+        "dummy_version",
+        ""};
+
+    builder.insertWrappedMingwHeaders();
+
+    ASSERT_THAT(builder.options(), Not(Contains(IsPartOfHeader("wrappedMingwHeaders"))));
+}
+
+TEST_F(CompilerOptionsBuilder, InsertWrappedMingwHeadersWithMingwToolchain)
+{
+    CppTools::CompilerOptionsBuilder builder{
+        projectPart,
+        CppTools::UseSystemHeader::Yes,
+        CppTools::UseTweakedHeaderPaths::Yes,
+        CppTools::UseLanguageDefines::No,
+        CppTools::UseBuildSystemWarnings::No,
+        "dummy_version",
+        ""};
+    projectPart.toolchainType = ProjectExplorer::Constants::MINGW_TOOLCHAIN_TYPEID;
+
+    builder.insertWrappedMingwHeaders();
+
+    ASSERT_THAT(builder.options(), Contains(IsPartOfHeader("wrappedMingwHeaders")));
+}
+
 TEST_F(CompilerOptionsBuilder, SetLanguageVersion)
 {
     compilerOptionsBuilder.updateFileLanguage(ProjectFile::CXXSource);