qmake can not process project file with UTF-8 BOM

Project file contains UTF-8 BOM can't processesed by qmake and will
cause subtle errors.

Task-number: QTBUG-25848
Change-Id: Id69ed38c6be63a29fa3792a631cb8cb0ac176148
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@nokia.com>

1 files changed, 8 insertions, 2 deletions

diff --git a/qmake/project.cpp b/qmake/project.cpp
index 9716237f90..3df80bc00d 100644
--- a/qmake/project.cpp
+++ b/qmake/project.cpp
@@ -1239,8 +1239,14 @@ QMakeProject::read(const QString &file, QHash<QString, QStringList> &place)
         parser.from_file = true;
         parser.file = filename;
         parser.line_no = 0;
-        QTextStream t(&qfile);
-        ret = read(t, place);
+        if (qfile.peek(3) == QByteArray("\xef\xbb\xbf")) {
+            //UTF-8 BOM will cause subtle errors
+            qmake_error_msg("Unexpected UTF-8 BOM found");
+            ret = false;
+        } else {
+            QTextStream t(&qfile);
+            ret = read(t, place);
+        }
         if(!using_stdin)
             qfile.close();
     }