Fix OpenCASCADE 7.8.0 compilation issues

CHANGELOG.md

@@ -16,6 +16,7 @@ v5.6.0
 - Use FwdTrans in UnsteadySystem when using Parareal (!1785)
 - Automate deployment of README.md to dockerhub (!1786)
 - Fix memory leak with Block preconditioner for time-updated matrices (!1737)
+- Fix compilation issue with OpenCASCADE 7.8.0 (!1799)
 
 **CompressibleFlowSolver**
 - Complete second Frechet derivative implementation (!1761)

cmake/FindOCC.cmake

@@ -35,20 +35,28 @@ FIND_PACKAGE(OCE 0.17 QUIET)
 SET(OCC_FOUND FALSE)
 
 IF(OCE_FOUND AND OCE_ALL_FOUND)
-    MESSAGE(STATUS "OpenCASCADE Community Edition has been found with all required components.")
+    IF (NOT FIND_OCC_QUIET)
+        MESSAGE(STATUS "OpenCASCADE Community Edition has been found with all required components.")
+    ENDIF()
     SET(OCC_INCLUDE_DIR ${OCE_INCLUDE_DIRS})
     SET(OCC_FOUND TRUE)
 ELSE(OCE_FOUND AND OCE_ALL_FOUND) #look for OpenCASCADE
-    MESSAGE(STATUS "OpenCASCADE Community Edition could not be found or has missing components.")
+    IF (NOT FIND_OCC_QUIET)
+        MESSAGE(STATUS "OpenCASCADE Community Edition could not be found or has missing components.")
+    ENDIF()
     SET(OpenCASCADE_FIND_COMPONENTS ${OCE_FIND_COMPONENTS})
     FIND_PACKAGE(OpenCASCADE)
 
     IF(OpenCASCADE_FOUND)
-        MESSAGE(STATUS "OpenCASCADE has been found with all required components.")
+        IF (NOT FIND_OCC_QUIET)
+            MESSAGE(STATUS "OpenCASCADE has been found with all required components.")
+        ENDIF()
         SET(OCC_INCLUDE_DIR ${OpenCASCADE_INCLUDE_DIR})
         SET(OCC_FOUND TRUE)
     ELSE()
-        MESSAGE(STATUS "OpenCASCADE could not be found or has missing components.")
+        IF (NOT FIND_OCC_QUIET)
+            MESSAGE(STATUS "OpenCASCADE could not be found or has missing components.")
+        ENDIF()
     ENDIF()
 
 ENDIF(OCE_FOUND AND OCE_ALL_FOUND)
@@ -67,10 +75,14 @@ IF(OCC_FOUND)
     SET(OCC_VERSION_STRING "${OCC_MAJOR}.${OCC_MINOR}.${OCC_MAINT}")
 
     IF(OCC_VERSION_STRING VERSION_LESS 6.8)
-        MESSAGE(STATUS "OCC version too low, will build from source")
+        IF (NOT FIND_OCC_QUIET)
+            MESSAGE(STATUS "OCC version too low, will build from source")
+        ENDIF()
         SET(OCC_FOUND FALSE)
     ELSE()
-        MESSAGE(STATUS "-- Found OCE/OpenCASCADE with OCC version: ${OCC_VERSION_STRING}")
+        IF (NOT FIND_OCC_QUIET)
+            MESSAGE(STATUS "-- Found OCE/OpenCASCADE with OCC version: ${OCC_VERSION_STRING}")
+        ENDIF()
         SET(OCC_LIBRARIES ${OCE_FIND_COMPONENTS})
     ENDIF()
 ENDIF(OCC_FOUND)

cmake/ThirdPartyOCE.cmake

@@ -15,8 +15,6 @@ IF(NEKTAR_USE_MESHGEN)
         TKG2d
         TKG3d
         TKMath
-        TKIGES
-        TKSTL
         TKShHealing
         TKXSBase
         TKBool
@@ -27,21 +25,32 @@ IF(NEKTAR_USE_MESHGEN)
         TKGeomBase
         TKOffset
         TKPrim
-        TKSTEP
-        TKSTEPBase
-        TKSTEPAttr
         TKHLR
         TKFeat
         TKXCAF
         TKLCAF
-        TKXDESTEP
-    )
+        )
 
     # Try to find installed version of OpenCascade
+    SET(FIND_OCC_QUIET ON)
     INCLUDE(FindOCC)
 
+    # Determine which version of OpenCASCADE we're building against. 7.8.0
+    # renames some of the libraries and we therefore need to re-run detection
+    # with the correct packages.
     IF (OCC_FOUND)
+        # We definitiely don't need to build OCE in this case.
         SET(BUILD_OCE OFF)
+
+        IF (OCC_VERSION_STRING VERSION_LESS 7.8.0)
+            LIST(APPEND OCC_LIB_LIST TKIGES TKSTEPBase TKSTEPAttr TKSTEP209 TKSTEP TKXDESTEP TKSTL TKSTEPAttr)
+        ELSE()
+            LIST(APPEND OCC_LIB_LIST TKDESTEP TKDEIGES TKDESTL)
+        ENDIF()
+
+        # Re-run to find additional components for STEP.
+        SET(FIND_OCC_QUIET OFF)
+        INCLUDE(FindOCC)
     ELSE()
         SET(BUILD_OCE ON)
     ENDIF()