Add support for multi configurations generators on unix

Since version 3.17 cmake supports the Ninja Multi-Config
No change for Xcode, VS and Ninja "single config"

CMakeLists.txt

@@ -437,34 +437,40 @@ endif (CMAKE_CXX_COMPILER_ID STREQUAL GNU OR CMAKE_CXX_COMPILER_ID STREQUAL Clan
 
 IF(NOT WIN32 AND NOT APPLE)
     # Linux installation
+    get_generator_is_multi_config(multi_config)
+    if (multi_config)
+        SET(INSTALL_SOURCE "${OpenMW_BINARY_DIR}/$<CONFIG>")
+    else ()
+        SET(INSTALL_SOURCE "${OpenMW_BINARY_DIR}")
+    endif ()
 
     # Install binaries
     IF(BUILD_OPENMW)
-        INSTALL(PROGRAMS "${OpenMW_BINARY_DIR}/openmw" DESTINATION "${BINDIR}" )
+        INSTALL(PROGRAMS "${INSTALL_SOURCE}/openmw" DESTINATION "${BINDIR}" )
     ENDIF(BUILD_OPENMW)
     IF(BUILD_LAUNCHER)
-        INSTALL(PROGRAMS "${OpenMW_BINARY_DIR}/openmw-launcher" DESTINATION "${BINDIR}" )
+        INSTALL(PROGRAMS "${INSTALL_SOURCE}/openmw-launcher" DESTINATION "${BINDIR}" )
     ENDIF(BUILD_LAUNCHER)
     IF(BUILD_BSATOOL)
-        INSTALL(PROGRAMS "${OpenMW_BINARY_DIR}/bsatool" DESTINATION "${BINDIR}" )
+        INSTALL(PROGRAMS "${INSTALL_SOURCE}/bsatool" DESTINATION "${BINDIR}" )
     ENDIF(BUILD_BSATOOL)
     IF(BUILD_ESMTOOL)
-        INSTALL(PROGRAMS "${OpenMW_BINARY_DIR}/esmtool" DESTINATION "${BINDIR}" )
+        INSTALL(PROGRAMS "${INSTALL_SOURCE}/esmtool" DESTINATION "${BINDIR}" )
     ENDIF(BUILD_ESMTOOL)
     IF(BUILD_NIFTEST)
-        INSTALL(PROGRAMS "${OpenMW_BINARY_DIR}/niftest" DESTINATION "${BINDIR}" )
+        INSTALL(PROGRAMS "${INSTALL_SOURCE}/niftest" DESTINATION "${BINDIR}" )
     ENDIF(BUILD_NIFTEST)
     IF(BUILD_MWINIIMPORTER)
-        INSTALL(PROGRAMS "${OpenMW_BINARY_DIR}/openmw-iniimporter" DESTINATION "${BINDIR}" )
+        INSTALL(PROGRAMS "${INSTALL_SOURCE}/openmw-iniimporter" DESTINATION "${BINDIR}" )
     ENDIF(BUILD_MWINIIMPORTER)
     IF(BUILD_ESSIMPORTER)
-        INSTALL(PROGRAMS "${OpenMW_BINARY_DIR}/openmw-essimporter" DESTINATION "${BINDIR}" )
+        INSTALL(PROGRAMS "${INSTALL_SOURCE}/openmw-essimporter" DESTINATION "${BINDIR}" )
     ENDIF(BUILD_ESSIMPORTER)
     IF(BUILD_OPENCS)
-        INSTALL(PROGRAMS "${OpenMW_BINARY_DIR}/openmw-cs" DESTINATION "${BINDIR}" )
+        INSTALL(PROGRAMS "${INSTALL_SOURCE}/openmw-cs" DESTINATION "${BINDIR}" )
     ENDIF(BUILD_OPENCS)
     IF(BUILD_WIZARD)
-        INSTALL(PROGRAMS "${OpenMW_BINARY_DIR}/openmw-wizard" DESTINATION "${BINDIR}" )
+        INSTALL(PROGRAMS "${INSTALL_SOURCE}/openmw-wizard" DESTINATION "${BINDIR}" )
     ENDIF(BUILD_WIZARD)
 
     # Install licenses
@@ -480,17 +486,17 @@ IF(NOT WIN32 AND NOT APPLE)
     ENDIF(BUILD_OPENCS)
 
     # Install global configuration files
-    INSTALL(FILES "${OpenMW_BINARY_DIR}/settings-default.cfg" DESTINATION "${SYSCONFDIR}" COMPONENT "openmw")
-    INSTALL(FILES "${OpenMW_BINARY_DIR}/openmw.cfg.install" DESTINATION "${SYSCONFDIR}" RENAME "openmw.cfg" COMPONENT "openmw")
-    INSTALL(FILES "${OpenMW_BINARY_DIR}/resources/version" DESTINATION "${SYSCONFDIR}" COMPONENT "openmw")
-    INSTALL(FILES "${OpenMW_BINARY_DIR}/gamecontrollerdb.txt" DESTINATION "${SYSCONFDIR}" COMPONENT "openmw")
+    INSTALL(FILES "${INSTALL_SOURCE}/settings-default.cfg" DESTINATION "${SYSCONFDIR}" COMPONENT "openmw")
+    INSTALL(FILES "${INSTALL_SOURCE}/openmw.cfg.install" DESTINATION "${SYSCONFDIR}" RENAME "openmw.cfg" COMPONENT "openmw")
+    INSTALL(FILES "${INSTALL_SOURCE}/resources/version" DESTINATION "${SYSCONFDIR}" COMPONENT "openmw")
+    INSTALL(FILES "${INSTALL_SOURCE}/gamecontrollerdb.txt" DESTINATION "${SYSCONFDIR}" COMPONENT "openmw")
 
     IF(BUILD_OPENCS)
-        INSTALL(FILES "${OpenMW_BINARY_DIR}/openmw-cs.cfg" DESTINATION "${SYSCONFDIR}" COMPONENT "opencs")
+        INSTALL(FILES "${INSTALL_SOURCE}/openmw-cs.cfg" DESTINATION "${SYSCONFDIR}" COMPONENT "opencs")
     ENDIF(BUILD_OPENCS)
 
     # Install resources
-    INSTALL(DIRECTORY "${OpenMW_BINARY_DIR}/resources" DESTINATION "${DATADIR}" COMPONENT "Resources")
+    INSTALL(DIRECTORY "${INSTALL_SOURCE}/resources" DESTINATION "${DATADIR}" COMPONENT "Resources")
     INSTALL(DIRECTORY DESTINATION "${DATADIR}/data" COMPONENT "Resources")
 ENDIF(NOT WIN32 AND NOT APPLE)