Description: Fix cmake module path
 to be able to install cmake module in mulipath. Also, do not bail out if an
 opencascade component is not installed in the cmake module (it might be in a
 different package)
Author: Tobias Frost <tobi@debian.org>
Forwarded: not yet
Last-Update: 2022-10-19 <YYYY-MM-DD, last update of the meta-information, optional>
---
This patch header follows DEP-3: http://dep.debian.net/deps/dep3/
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -11,6 +11,7 @@
     ADD_DEFINITIONS(-DIGNORE_NO_ATOMICS)
 ENDIF(IGNORE_NO_ATOMICS)
 
+include(GNUInstallDirs)
 
 # macro: include patched file if it exists
 macro (OCCT_INCLUDE_CMAKE_FILE BEING_INCLUDED_FILE)
--- a/adm/templates/OpenCASCADEConfig.cmake.in
+++ b/adm/templates/OpenCASCADEConfig.cmake.in
@@ -36,11 +36,11 @@
 endif()
 
 # Set OpenCASCADE paths to headers, binaries, libraries, resources, tests, samples, data
-set (OpenCASCADE_BINARY_DIR   "${OpenCASCADE_INSTALL_PREFIX}/@INSTALL_DIR_BIN@")
-set (OpenCASCADE_LIBRARY_DIR  "${OpenCASCADE_INSTALL_PREFIX}/@INSTALL_DIR_LIB@")
-set (OpenCASCADE_SCRIPT_DIR   "${OpenCASCADE_INSTALL_PREFIX}/@INSTALL_DIR_SCRIPT@")
-set (OpenCASCADE_INCLUDE_DIR  "${OpenCASCADE_INSTALL_PREFIX}/@INSTALL_DIR_INCLUDE@")
-set (OpenCASCADE_RESOURCE_DIR "${OpenCASCADE_INSTALL_PREFIX}/@INSTALL_DIR_RESOURCE@")
+set (OpenCASCADE_BINARY_DIR   "@CMAKE_INSTALL_FULL_BINDIR@")
+set (OpenCASCADE_LIBRARY_DIR  "@CMAKE_INSTALL_FULL_LIBDIR@")
+set (OpenCASCADE_SCRIPT_DIR   "@CMAKE_INSTALL_FULL_BINDIR@")
+set (OpenCASCADE_INCLUDE_DIR  "@CMAKE_INSTALL_FULL_INCLUDEDIR@/opencascade")
+set (OpenCASCADE_RESOURCE_DIR "@CMAKE_INSTALL_FULL_DATAROOTDIR@/opencascade/resources")
 
 # The C and C++ flags added by OpenCASCADE to the cmake-configured flags.
 set (OpenCASCADE_C_FLAGS      "@CMAKE_C_FLAGS@")
@@ -89,6 +89,6 @@
       message (ERROR ": ${OpenCASCADE_NOTFOUND_MESSAGE}")
     endif()
   else()
-    include("${CMAKE_CURRENT_LIST_DIR}/OpenCASCADE${_comp}Targets.cmake")
+    include("${CMAKE_CURRENT_LIST_DIR}/OpenCASCADE${_comp}Targets.cmake" OPTIONAL)
   endif()
 endforeach()