qdoc: Drop '-I' prefix from module header pathv5.13.0-rc1

Under certain conditions the '-I' prefixes survive in the list of
resolved include paths.

Fixes: QTBUG-76026
Change-Id: Ie3543b5aa8b88d8021175b3168ab8de8a4497878
Reviewed-by: Martin Smith <martin.smith@qt.io>
Reviewed-by: Paul Wicking <paul.wicking@qt.io>
 

1 files changed, 2 insertions, 0 deletions

diff --git a/src/qdoc/clangcodeparser.cpp b/src/qdoc/clangcodeparser.cpp
index 5bda5296b..87c9282ce 100644
--- a/src/qdoc/clangcodeparser.cpp
+++ b/src/qdoc/clangcodeparser.cpp
@@ -1226,6 +1226,8 @@ void ClangCodeParser::buildPCH()
             for (const auto &p : qAsConst(includePaths_)) {
                 if (p.endsWith(module)) {
                     QByteArray candidate = p + "/" + module;
+                    if (p.startsWith("-I"))
+                        candidate = candidate.mid(2);
                     if (QFile::exists(QString::fromUtf8(candidate))) {
                         header = candidate;
                         break;