-F flag not being included in flycheck compile line for c++/clang (OSX)

[sbroberg]

The actual compilation line for a file (I can provide a self-contained cmake project for this issue, if necessary):

/usr/bin/clang++ \
  -DDBUTIL_EXPORTS \
  -DQT_CORE_LIB \
  -DQT_NO_DEBUG \
  -isysroot \
  /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.7.sdk \
  -mmacosx-version-min=10.7 \
  -fPIC \
  -I/Users/stebro/test/sqlite/include \
  -I/usr/local/include \
  -F/Volumes/ProductToolChain/qt-5.5/lib \
  -I/Volumes/ProductToolChain/qt-5.5/lib/QtCore.framework/Headers \
  -I/Volumes/ProductToolChain/qt-5.5/mkspecs/macx-clang-32 \
  -fPIC \
  -E \
  -c \
  /Users/stebro/test/sqlite/DBQuery.cpp

The line being used by flycheck, after cmake-ide initalization:

clang \
  -fsyntax-only \
  -fno-color-diagnostics \
  -fno-caret-diagnostics \
  -fno-diagnostics-show-option \
  -iquote \
  /Users/stebro/test/sqlite/ \
  -std\=c\+\+1y \
  -Wall \
  -Wextra \
  -DDBUTIL_EXPORTS \
  -DQT_CORE_LIB \
  -DQT_NO_DEBUG \
  -I/Volumes/ProductToolChain/qt-5.5/mkspecs/macx-clang-32 \
  -I/Volumes/ProductToolChain/qt-5.5/lib/QtCore.framework/Headers \
  -I/Users/stebro/test/sqlite/include \
  -I/usr/local/include \
  -x c\+\+ \
  - < /Users/stebro/test/sqlite/DBQuery.cpp

The lack of the -F option is producing the error:

In file included from <stdin>:8:
In file included from /Users/stebro/test/sqlite/DBQuery.h:11:
In file included from /Volumes/ProductToolChain/qt-5.5/lib/QtCore.framework/Headers/QVector:1:
/Volumes/ProductToolChain/qt-5.5/lib/QtCore.framework/Headers/qvector.h:37:10: fatal error: 'QtCore/qalgorithms.h' file not found