OSX: Qt from Git fails to configure

Trying to build qtbase anew (as I have done before with qt5.4 from gitorious) :

   
$ git clone git://code.qt.io/qt/qt5.git
$ cd qt5
$ git checkout 5.5
$ perl ./init-repository --module-subset=qtbase

So far so good.

Running 'configure' however gives me:

-bash: ../configure: /bin/sh^M: bad interpreter: No such file or directory

Oook, after googling I convert the line endings, but then:

You don't seem to have 'make' or 'gmake' in your PATH.

Then I just downloaded qt-everywhere-opensource-src-5.5.0 to test it out.
It configures fine, so I tried splicing pieces of it to my git srcs.

Copping the config.tests from redist src to my git src 'solved' the "no make" issue.

But then:

Preparing build tree...
", not a developer tool or in PATHty "clang++\
", not a developer tool or in PATHty "clang++\
", not a developer tool or in PATHty "clang\
...

Copping mkspects from redist src 'solved' that, but:

env: perl\r: No such file or directory

This was also solved by converting to unix line ending.

But then, and finally:

Preparing build tree...
<srcbase> = /Users/admin/Qt-src/qt555/qt5/qtbase
<outbase> = /Users/admin/Qt-src/qt555/qt5/qtbase-build/qtbase
Creating qmake...
./Users/admin/Qt-src/qt555/qt5/qtbase/qmake/generators/mac/pbuilder_pbx.cpp:50:10: fatal error: 'private/qcore_mac_p.h' file not found
#include <private/qcore_mac_p.h>

1 error generated.

Aaaand I am stuck.

My application depends on patched Qt.
My only option now is to manually patch the redistributable sources!