Updating the SConscripts a bit. Updating the documentation.

SConstruct

@@ -91,10 +91,10 @@ env.AppendUnique(CPPPATH = ['#sources'])
 ##
 Export('env')
 
-if not env.GetOption('help'):
+external = env.SConscript('external/SConscript')
 
-	external = env.SConscript('external/SConscript')
-
-	sources  = env.SConscript('sources/SConscript')
-	#env.Depends(sources, external)
-#end
+core    = env.SConscript('sources/core/SConscript')
+plugins = env.SConscript('sources/plugins/SConscript')
+softs   = env.SConscript('sources/softs/SConscript')
+#sources  = env.SConscript('sources/SConscript')
+#env.Depends(sources, external)

documents/install.dox

@@ -101,7 +101,7 @@ Using scons, the compilation of ALTA is straightforward:
 
 \verbatim
 $ cd $ALTA
-$ scons --cfg [filename] -i
+$ scons --cfg=[filename]
 \endverbatim
 
 You need to provide a system dependant configuration file. You will find

sources/SConstruct

-import os
-import sys
-
-## Import configuration from a config file
-##
-AddOption('--cfg', help='Specify a configuration file (see config.example')
-configFile = GetOption('cfg')
-if configFile == None:
-	configFile = '../config.example'
-#end
-
-if not os.path.exists(configFile):
-	print '<<ERROR>> the config file you specified does not exists'
-	Exit(1)
-#end
-
-vars = Variables(configFile)
-vars.Add('CXX',               'Compiler')
-vars.Add('CCFLAGS',           'Compiler\'s flags')
-vars.Add('LINKFLAGS',         'Linker\'s flags')
-vars.Add('OPENEXR_INC',       'OpenEXR include directory')
-vars.Add('OPENEXR_DIR',       'OpenEXR libraries directory')
-vars.Add('OPENEXR_LIBS',      'OpenEXR libraries')
-vars.Add('OPENMP_FLAGS',      'OpenMP required flags')
-vars.Add('OPENMP_LIBS',       'OpenMP libraries')
-vars.Add('QUADPROG_INC',      'QUADPROG include directory')
-vars.Add('QUADPROG_DIR',      'QUADPROG libraries directory')
-vars.Add('QUADPROG_LIBS',     'QUADPROG libraries')
-vars.Add('CERES_INC',         'CERES include directory')
-vars.Add('CERES_DIR',         'CERES libraries directory')
-vars.Add('CERES_LIBS',        'CERES libraries')
-vars.Add('CERES_OPT_LIBS',    'CERES optional libraries')
-vars.Add('NLOPT_INC',         'NLOPT include directory')
-vars.Add('NLOPT_DIR',         'NLOPT libraries directory')
-vars.Add('NLOPT_LIBS',        'NLOPT libraries')
-vars.Add('NLOPT_OPT_LIBS',    'NLOPT optional libraries')
-vars.Add('MATLAB_INC',        'MATLAB include directory')
-vars.Add('MATLAB_DIR',        'MATLAB directory')
-vars.Add('MATLAB_LIBS',       'MATLAB libraries')
-
-env = Environment(variables = vars)
-
-
-## PLATFORM dependant section
-##
-if sys.platform == 'darwin':
-
-	# Adding the /usr/local/lib directory used to store libraries of
-	# MacPorts or Brew.
-	env.AppendUnique(LIBPATH = ['/usr/local/lib'])
-	env.AppendUnique(CPPPATH = ['/usr/local/include'])
-
-	env.AppendUnique(LIBPATH = ['/opt/local/lib/'])
-	env.AppendUnique(CPPPATH = ['/opt/local/include/'])
-
-#end
-
-
-## COMPILER dependant section
-##
-if env['CC'] in ['gcc', 'clang'] or env['CXX'] in ['g++', 'clang']:
-	print '<<INFO>> add -fPIC option to the compiler'
-	env.AppendUnique(CCFLAGS = '-fPIC')
-#end
-
-
-## Load the configuration file if it exists. The configuration file
-## is a python script that updates the env variable with different
-## paths.
-##
-env.AppendUnique(LIBPATH = ['#../external/build/lib'])
-env.AppendUnique(LIBPATH = ['#./build'])
-env.AppendUnique(CPPPATH = ['#../external/build/include'])
-env.AppendUnique(CPPPATH = ['#./'])
-
-
-
-## Launch the compilations
-##
-Export('env')
-
-env.SConscript('SConscript')

sources/core/SConscript

@@ -2,6 +2,7 @@ import os
 import sys
 
 Import('env')
+env = env.Clone()
 
 # Library sources
 sources = ['common.cpp', 
@@ -11,18 +12,16 @@ sources = ['common.cpp',
            'rational_function.cpp', 
            'vertical_segment.cpp']
 
-libs = []
 if(os.name == 'posix'):
-	libs = ['rt', 'dl']
+	env.AppendUnique(LIBS = ['rt', 'dl'])
 #end
 
 ## Known compilation issue. If the core is not compiled with -fvisibility-hidden
 ## on OSX, the shared libraries and the softwares cannot share vtables. This
 ## impact the use of dynamic_cast in shared libraries.
 ##
-ccflags = []
 if sys.platform == 'darwin':
-	ccflags = ['-fvisibility=hidden']
+	env.AppendUnique(CCFLAGS = '-fvisibility=hidden')
 #end
 
-env.StaticLibrary('../build/core', sources, LIBS=libs, CCFLAGS=ccflags)
+env.StaticLibrary('../build/core', sources)
\ No newline at end of file

sources/plugins/SConscript

@@ -3,7 +3,7 @@ SConscript('data_merl/SConscript')
 SConscript('data_brdf_slice/SConscript')
 SConscript('data_interpolant/SConscript')
 
-# Building nonlinear fitters
+# # Building nonlinear fitters
 SConscript('nonlinear_fitter_ceres/SConscript')
 SConscript('nonlinear_fitter_nlopt/SConscript')
 SConscript('nonlinear_fitter_ipopt/SConscript')

sources/plugins/nonlinear_fresnel_retroschlick/SConscript

-env = Environment()
-env.Append(CPPPATH = ['../../../external/build/include', '../../'])
-env.Append(LIBPATH = ['../../../external/build/lib', '../../build'])
+Import('env')
+env = env.Clone()
 
 sources = ['function.cpp']
 libs = ['core']