diff options
Diffstat (limited to 'qmake/generators/unix/unixmake2.cpp')
| -rw-r--r-- | qmake/generators/unix/unixmake2.cpp | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/qmake/generators/unix/unixmake2.cpp b/qmake/generators/unix/unixmake2.cpp index 8e18f69c03..eb68614fe6 100644 --- a/qmake/generators/unix/unixmake2.cpp +++ b/qmake/generators/unix/unixmake2.cpp @@ -1229,8 +1229,10 @@ void UnixMakefileGenerator::init2() } if (include_deps && project->isActiveConfig("gcc_MD_depends")) { - project->values("QMAKE_CFLAGS") += "-MD"; - project->values("QMAKE_CXXFLAGS") += "-MD"; + // use -MMD if we know about -isystem too + ProString MD_flag(project->values("QMAKE_CFLAGS_ISYSTEM").isEmpty() ? "-MD" : "-MMD"); + project->values("QMAKE_CFLAGS") += MD_flag; + project->values("QMAKE_CXXFLAGS") += MD_flag; } if(!project->isEmpty("QMAKE_BUNDLE")) { |