Config flag whether xerces-c is available in Storm

cmake/CMakeLists.txt

@@ -55,6 +55,12 @@ else()
     set(STORM_CLN_RF_BOOL "False")
 endif()
 
+if(STORM_HAVE_XERCES)
+    set(STORM_XERCES_BOOL "True")
+else()
+    set(STORM_XERCES_BOOL "False")
+endif()
+
 if(HAVE_STORM_DFT)
     set(HAVE_STORM_DFT_BOOL "True")
 else()

cmake/config.py.in

@@ -4,6 +4,7 @@ STORM_DIR = "@STORM_DIR@"
 STORM_VERSION = "@STORM_VERSION@"
 STORM_CLN_EA = @STORM_CLN_EA_BOOL@
 STORM_CLN_RF = @STORM_CLN_RF_BOOL@
+STORM_XERCES = @STORM_XERCES_BOOL@
 HAVE_STORM_DFT = @HAVE_STORM_DFT_BOOL@
 HAVE_STORM_GSPN = @HAVE_STORM_GSPN_BOOL@
 HAVE_STORM_PARS = @HAVE_STORM_PARS_BOOL@

setup.py

@@ -153,6 +153,7 @@ class CMakeBuild(build_ext):
                     f.write("RationalFunction = pycarl.{}.RationalFunction\n".format(rfpackage))
                     f.write("FactorizedRationalFunction = pycarl.{}.FactorizedRationalFunction\n".format(rfpackage))
                     f.write("\n")
+                    f.write("storm_with_xerces = {}\n".format(cmake_conf.STORM_XERCES))
                     f.write("storm_with_dft = {}\n".format(use_dft))
                     f.write("storm_with_gspn = {}\n".format(use_gspn))
                     f.write("storm_with_pars = {}\n".format(use_pars))

tests/configurations.py

@@ -3,6 +3,7 @@ import pytest
 import stormpy._config as config
 
 # Skip not supported functionality
+has_xml = config.storm_with_xerces
 has_dft = config.storm_with_dft
 has_gspn = config.storm_with_gspn
 has_pars = config.storm_with_pars
@@ -15,6 +16,7 @@ try:
 except ImportError:
     has_numpy = False
 
+xml = pytest.mark.skipif(not has_xml, reason="No support for XML via xerces")
 dft = pytest.mark.skipif(not has_dft, reason="No support for DFTs")
 gspn = pytest.mark.skipif(not has_gspn, reason="No support for GSPNs")
 pars = pytest.mark.skipif(not has_pars, reason="No support for parametric model checking")

tests/gspn/test_gspn.py

@@ -2,7 +2,7 @@ import os
 
 import stormpy
 
-from configurations import gspn
+from configurations import gspn, xml
 
 
 @gspn
@@ -211,6 +211,7 @@ class TestGSPNBuilder:
         tt_0 = gspn_import.get_timed_transition("tt_0")
         assert tt_0.get_id() == id_tt_0
 
+    @xml
     def test_export_to_pnml(self, tmpdir):
         builder = stormpy.gspn.GSPNBuilder()
         builder.set_name("gspn_test")