Configuration scripts for scons are working under OSX AFAIK.

SConstruct

@@ -97,7 +97,7 @@ env.AppendUnique(CPPPATH = ['#sources'])
 ##l
 Export('env')
 
-#external = env.SConscript('external/SConscript')
+external = env.SConscript('external/SConscript')
 core     = env.SConscript('sources/core/SConscript')
 plugins  = env.SConscript('sources/plugins/SConscript')
 softs    = env.SConscript('sources/softs/SConscript')

sources/core/SConscript

@@ -19,8 +19,8 @@ env.AppendUnique(env['CORE_LIB'])
 ## on OSX, the shared libraries and the softwares cannot share vtables. This
 ## impact the use of dynamic_cast in shared libraries.
 ##
-#if sys.platform == 'darwin':
-#	env.AppendUnique(CCFLAGS = '-fvisibility=hidden')
+if sys.platform == 'darwin':
+	env.AppendUnique(CCFLAGS = '-fvisibility=hidden')
 #end
 
 env.StaticLibrary('../build/core', sources)

sources/plugins/SConscript

-# Building data plugins
+# # Building data plugins
 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')
@@ -19,7 +19,7 @@ SConscript('nonlinear_function_isotropic_lafortune/SConscript')
 # Building nonlinear masking functions
 SConscript('nonlinear_shadowing_smith/SConscript')
 
-# Building rational fitters
+# # Building rational fitters
 SConscript('rational_fitter_eigen/SConscript')
 SConscript('rational_fitter_leastsquare/SConscript')
 SConscript('rational_fitter_quadprog/SConscript')
@@ -27,7 +27,7 @@ SConscript('rational_fitter_parallel/SConscript')
 SConscript('rational_fitter_matlab/SConscript')
 
 
-# Building rational functions
+# # Building rational functions
 SConscript('rational_function_legendre/SConscript')
 SConscript('rational_function_chebychev/SConscript')
 SConscript('rational_function_chebychev_opt/SConscript')

sources/plugins/data_brdf_slice/SConscript

 Import('env')
 env = env.Clone()
 
+env.AppendUnique(LIBS    = env['PLUGIN_LIB'])
+env.AppendUnique(LIBS    = env['OPENEXR_LIB'])
+env.AppendUnique(LIBPATH = env['OPENEXR_DIR'])
+env.AppendUnique(CPPPATH = env['OPENEXR_INC'])
+
+build_lib = False
+
 conf = Configure(env)
 if conf.CheckLib(env['OPENEXR_LIB']):
 
-	env.AppendUnique(LIBS    = env['PLUGIN_LIB'])
-	env.AppendUnique(LIBS    = env['OPENEXR_LIB'])
-	env.AppendUnique(LIBPATH = env['OPENEXR_DIR'])
-	env.AppendUnique(CPPPATH = env['OPENEXR_INC'])
-
-	sources = ['data.cpp']
-	env.SharedLibrary('../../build/data_brdf_slice', sources)
+	build_lib = True
 
 #end
 env = conf.Finish()
+
+sources = ['data.cpp']
+env.SharedLibrary('../../build/data_brdf_slice', sources)

sources/plugins/data_interpolant/SConscript

 Import('env')
 env = env.Clone()
 
+env.AppendUnique(LIBS    = env['PLUGIN_LIB'])
+env.AppendUnique(LIBS    = env['FLANN_LIB'])
+env.AppendUnique(LIBPATH = env['FLANN_DIR'])
+env.AppendUnique(CPPPATH = env['FLANN_INC'])
+
+build_lib = False
+
 conf = Configure(env)
 if conf.CheckLibWithHeader(env['FLANN_LIB'], 'flann/flann.hpp', 'CXX'):
 
-	env.AppendUnique(LIBS    = env['PLUGIN_LIB'])
-	env.AppendUnique(LIBS    = env['FLANN_LIB'])
-	env.AppendUnique(LIBPATH = env['FLANN_DIR'])
-	env.AppendUnique(CPPPATH = env['FLANN_INC'])
-
-	sources = ['data.cpp']
-	env.SharedLibrary('../../build/data_interpolant', sources)
+	build_lib = True
 
 #end
 env = conf.Finish()
+
+if build_lib:
+	sources = ['data.cpp']
+	env.SharedLibrary('../../build/data_interpolant', sources)
+#end
\ No newline at end of file

sources/plugins/nonlinear_fitter_ceres/SConscript

@@ -6,6 +6,8 @@ env.AppendUnique(LIBS    = env['CERES_LIB'])
 env.AppendUnique(LIBPATH = env['CERES_DIR'])
 env.AppendUnique(CPPPATH = env['CERES_INC'])
 
+build_lib = False
+
 conf = Configure(env)
 
 if conf.CheckLibWithHeader(env['CERES_LIB'], 'ceres/ceres.h', 'c++'):
@@ -14,9 +16,12 @@ if conf.CheckLibWithHeader(env['CERES_LIB'], 'ceres/ceres.h', 'c++'):
 		env.AppendUnique(LIBS = env['CERES_OPT_LIB'])
 	#end
 
-	sources = ['fitter.cpp']
-	env.SharedLibrary('../../build/nonlinear_fitter_ceres', sources)
+	build_lib = True
 
 #end
-
 env = conf.Finish()
+
+if build_lib:
+	sources = ['fitter.cpp']
+	env.SharedLibrary('../../build/nonlinear_fitter_ceres', sources)
+#end
\ No newline at end of file

sources/plugins/nonlinear_fitter_eigen/SConscript

@@ -3,13 +3,18 @@ env = env.Clone()
 
 env.AppendUnique(LIBS = env['PLUGIN_LIB'])
 
+build_lib = False
+
 conf = Configure(env)
 
 if conf.CheckCXXHeader('unsupported/Eigen/LevenbergMarquardt'):
 
-	sources = ['fitter.cpp']
-	env.SharedLibrary('../../build/nonlinear_fitter_eigen', sources)
+	build_lib = True
 
 #end
-
 env = conf.Finish()
+
+if build_lib:
+	sources = ['fitter.cpp']
+	env.SharedLibrary('../../build/nonlinear_fitter_eigen', sources)
+#end
\ No newline at end of file

sources/plugins/nonlinear_fitter_ipopt/SConscript

 Import('env')
 env = env.Clone()
 
+env.AppendUnique(LIBS    = env['PLUGIN_LIB'])
+env.AppendUnique(LIBS    = env['IPOPT_LIB'])
+env.AppendUnique(LIBPATH = env['IPOPT_DIR'])
+env.AppendUnique(CPPPATH = env['IPOPT_INC'])
+
+build_lib = False
+
 conf = Configure(env)
 
 if conf.CheckLib(env['IPOPT_LIB']):
 
-	env.AppendUnique(LIBS    = env['PLUGIN_LIB'])
-	env.AppendUnique(LIBS    = env['IPOPT_LIB'])
-	env.AppendUnique(LIBPATH = env['IPOPT_DIR'])
-	env.AppendUnique(CPPPATH = env['IPOPT_INC'])
 	if conf.CheckLib(env['IPOPT_OPT_LIB']):
 		env.AppendUnique(LIBS = env['IPOPT_OPT_LIB'])
 	#end
 
-	sources = ['fitter.cpp']
-	env.SharedLibrary('../../build/nonlinear_fitter_ipopt', sources)
-
+	build_lib = True
+	
 #end
+env = conf.Finish()
 
-env = conf.Finish()
\ No newline at end of file
+if build_lib:
+	sources = ['fitter.cpp']
+	env.SharedLibrary('../../build/nonlinear_fitter_ipopt', sources)
+#end
\ No newline at end of file

sources/plugins/nonlinear_fitter_nlopt/SConscript

 Import('env')
 env = env.Clone()
 
+env.AppendUnique(LIBS    = env['PLUGIN_LIB'])
+env.AppendUnique(LIBS    = env['NLOPT_LIB'])
+env.AppendUnique(LIBPATH = env['NLOPT_DIR'])
+env.AppendUnique(CPPPATH = env['NLOPT_INC'])
+
+build_lib = False
+
 conf = Configure(env)
 
 if conf.CheckLib(env['NLOPT_LIB']):
 
-	env.AppendUnique(LIBS    = env['PLUGIN_LIB'])
-	env.AppendUnique(LIBS    = env['NLOPT_LIB'])
-	env.AppendUnique(LIBPATH = env['NLOPT_DIR'])
-	env.AppendUnique(CPPPATH = env['NLOPT_INC'])
 	if conf.CheckLib(env['NLOPT_OPT_LIB']):
 		env.AppendUnique(LIBS = env['NLOPT_OPT_LIB'])
 	#end
 
-	sources = ['fitter.cpp']
-	env.SharedLibrary('../../build/nonlinear_fitter_nlopt', sources)
+	build_lib = True
 
 #end
+env = conf.Finish()
 
-env = conf.Finish()
\ No newline at end of file
+if build_lib:
+	sources = ['fitter.cpp']
+	env.SharedLibrary('../../build/nonlinear_fitter_nlopt', sources)
+#end
\ No newline at end of file

sources/plugins/rational_fitter_matlab/SConscript

 Import('env')
 env = env.Clone()
 
+env.AppendUnique(CPPPATH = env['MATLAB_INC'])
+env.AppendUnique(LIBPATH = env['MATLAB_DIR'])
+env.AppendUnique(LIBS    = env['MATLAB_LIB'])
+env.AppendUnique(LIBS    = env['PLUGIN_LIB'])
+
+build_lib = False
+
 conf = Configure(env)
 
 if conf.CheckLib(env['MATLAB_LIB']):
 
-	env.AppendUnique(CPPPATH = env['MATLAB_INC'])
-	env.AppendUnique(LIBPATH = env['MATLAB_DIR'])
-	env.AppendUnique(LIBS    = env['MATLAB_LIB'])
-	env.AppendUnique(LIBS    = env['PLUGIN_LIB'])
+	build_lib = True
 
-	sources = ['rational_fitter.cpp']
-	env.SharedLibrary('../../build/rational_fitter_matlab', sources)
 #end
 conf.Finish()
+
+if build_lib:
+	sources = ['rational_fitter.cpp']
+	env.SharedLibrary('../../build/rational_fitter_matlab', sources)
+#end
\ No newline at end of file

sources/plugins/rational_fitter_parallel/SConscript

 Import('env')
 env = env.Clone()
 
+env.AppendUnique(CPPPATH = env['QUADPROG_INC'])
+env.AppendUnique(LIBPATH = env['QUADPROG_DIR'])
+env.AppendUnique(LIBS    = env['QUADPROG_LIB'])
+env.AppendUnique(LIBS    = env['PLUGIN_LIB'])
+
 conf = Configure(env)
 
-if conf.CheckLib(env['QUADPROG_LIB']):
+build_lib = False
 
-	env.AppendUnique(CPPPATH = env['QUADPROG_INC'])
-	env.AppendUnique(LIBPATH = env['QUADPROG_DIR'])
-	env.AppendUnique(LIBS    = env['QUADPROG_LIB'])
-	env.AppendUnique(LIBS    = env['PLUGIN_LIB'])
+if conf.CheckLib(env['QUADPROG_LIB']):	
 
 	env.AppendUnique(CCFLAGS = env['OPENMP_FLAG'])
 	if conf.CheckLib(env['OPENMP_LIB']):
 		env.AppendUnique(LIBS    = env['OPENMP_LIB'])
 	#end
 
-	sources = ['rational_fitter.cpp']
-	env.SharedLibrary('../../build/rational_fitter_parallel', sources)
+	build_lib = True
 #end
 conf.Finish()
+
+if build_lib:
+	sources = ['rational_fitter.cpp']
+	env.SharedLibrary('../../build/rational_fitter_parallel', sources)
\ No newline at end of file

sources/plugins/rational_fitter_quadprog/SConscript

 Import('env')
 env = env.Clone()
 
+env.AppendUnique(CPPPATH = env['QUADPROG_INC'])
+env.AppendUnique(LIBPATH = env['QUADPROG_DIR'])
+env.AppendUnique(LIBS    = env['QUADPROG_LIB'])
+env.AppendUnique(LIBS    = env['PLUGIN_LIB'])
+
+build_lib = False
+
 conf = Configure(env)
 
 if conf.CheckLib(env['QUADPROG_LIB']):
 
-	env.AppendUnique(CPPPATH = env['QUADPROG_INC'])
-	env.AppendUnique(LIBPATH = env['QUADPROG_DIR'])
-	env.AppendUnique(LIBS    = env['QUADPROG_LIB'])
-	env.AppendUnique(LIBS    = env['PLUGIN_LIB'])
-	
-	sources = ['rational_fitter.cpp']
-	env.SharedLibrary('../../build/rational_fitter_quadprog', sources)
+	build_lib = True
 	
 #end
 conf.Finish()
+
+if build_lib:
+	sources = ['rational_fitter.cpp']
+	env.SharedLibrary('../../build/rational_fitter_quadprog', sources)
+#end
\ No newline at end of file