Installing QGIS from sources on Mountain Lion

cmake.sh

Quantum-GIS > cmake -DCMAKE_INSTALL_PREFIX=~/Applications -DCMAKE_BUILD_TYPE=Release -DCMAKE_BUILD_TYPE=MinSizeRel -DWITH_INTERNAL_SPATIALITE=TRUE -DQWT_INCLUDE_DIR=/usr/local/Cellar/qwt/6.0.1/lib/qwt.framework/Headers -DSPATIALINDEX_INCLUDE_DIR=/usr/local/Cellar/spatialindex/1.7.1/include -DSPATIALINDEX_LIBRARY=/usr/local/Cellar/spatialindex/1.7.1/lib/libspatialindex.dylib 
-- The C compiler identification is GNU 4.2.1
-- The CXX compiler identification is Clang 4.0.0
-- Checking whether C compiler has -isysroot
-- Checking whether C compiler has -isysroot - yes
-- Checking whether C compiler supports OSX deployment target flag
-- Checking whether C compiler supports OSX deployment target flag - yes
-- Check for working C compiler: /usr/bin/gcc
-- Check for working C compiler: /usr/bin/gcc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Quantum GIS version: 1.9.0 Master (10900)
-- Could not find GRASS
-- Found Iconv: /usr/lib/libiconv.dylib
-- Looking for openpty
-- Looking for openpty - found
-- Found Proj: /usr/local/lib/libproj.dylib
-- Found GEOS: /usr/local/Cellar/geos/3.3.5/lib/libgeos_c.dylib
-- Found GDAL: /usr/local/Cellar/gdal/1.9.1/lib/libgdal.dylib (1.9.1)
-- Found Expat: /usr/lib/libexpat.dylib
-- Found Spatialindex: /usr/local/Cellar/spatialindex/1.7.1/lib/libspatialindex.dylib
-- Found Qwt: /usr/local/lib/qwt.framework (6.0.1)
-- Found PostgreSQL: /usr/local/Cellar/postgresql/9.1.4/lib/libpq.dylib
-- Looking for Q_WS_X11
-- Looking for Q_WS_X11 - not found.
-- Looking for Q_WS_WIN
-- Looking for Q_WS_WIN - not found.
-- Looking for Q_WS_QWS
-- Looking for Q_WS_QWS - not found.
-- Looking for Q_WS_MAC
-- Looking for Q_WS_MAC - found
-- Looking for QT_MAC_USE_COCOA
-- Looking for QT_MAC_USE_COCOA - found
-- Found Qt4: /usr/local/bin/qmake (found suitable version "4.8.2", required is "4.4.0") 
-- Touch support disabled
-- Pedantic compiler settings enabled
-- Found PythonInterp: /usr/bin/python (found version "2.7.2") 
-- Found Python executable: /usr/bin/python
-- Found Python version: 2.7.2
-- Found Python library: -framework Python
-- Found SIP version: 4.13.3
-- Found PyQt4 version: 4.9.4
-- Found GSL: -L/usr/local/Cellar/gsl/1.15/lib -lgsl -lgslcblas
-- txt2tags not found - disabled
-- Ctest Binary Directory  set to: /Users/x/work/Quantum-GIS/output/bin
-- Configuring done
-- Generating done
-- Build files have been written to: /Users/x/work/Quantum-GIS

stuff.sh

# install dependencies
brew install postgis qt gdal geos proj sqlite libspatialite gsl pyqt qwt cmake spatialindex swig

# make sure you add the following to your .profile (to have sip available)
export PYTHONPATH=/usr/local/lib/python2.7/site-packages:$PYTHONPATH

# clone qgis
git clone https://github.com/qgis/Quantum-GIS
cd Quantum-GIS

# configure
cmake -DCMAKE_INSTALL_PREFIX=~/Applications -DCMAKE_BUILD_TYPE=Release -DCMAKE_BUILD_TYPE=MinSizeRel -DWITH_INTERNAL_SPATIALITE=TRUE -DQWT_INCLUDE_DIR=/usr/local/Cellar/qwt/6.0.1/lib/qwt.framework/Headers -DSPATIALINDEX_INCLUDE_DIR=/usr/local/Cellar/spatialindex/1.7.1/include -DSPATIALINDEX_LIBRARY=/usr/local/Cellar/spatialindex/1.7.1/lib/libspatialindex.dylib

# 

This just builds a lot of empty binaries for me - have you had any success?