Merge pull request #2968 from assimp/issue_1592

closes https://github.com/assimp/assimp/issues/1592:

CMakeLists.txt

@@ -100,6 +100,10 @@ OPTION ( ASSIMP_COVERALLS
   "Enable this to measure test coverage."
   OFF
 )
+OPTION( ASSIMP_INSTALL
+  "DIsable this if you want to use assimp as a submodule."
+  ON
+)
 OPTION ( ASSIMP_ERROR_MAX
   "Enable all warnings."
   OFF
@@ -601,8 +605,11 @@ ENDIF ( ASSIMP_BUILD_TESTS )
 
 # Generate a pkg-config .pc for the Assimp library.
 CONFIGURE_FILE( "${PROJECT_SOURCE_DIR}/assimp.pc.in" "${PROJECT_BINARY_DIR}/assimp.pc" @ONLY )
+IF ( ASSIMP_INSTALL )
   INSTALL( FILES "${PROJECT_BINARY_DIR}/assimp.pc" DESTINATION ${ASSIMP_LIB_INSTALL_DIR}/pkgconfig/ COMPONENT ${LIBASSIMP-DEV_COMPONENT})
+ENDIF( ASSIMP_INSTALL )
 
+IF ( ASSIMP_INSTALL )
   IF(CMAKE_CPACK_COMMAND AND UNIX AND ASSIMP_OPT_BUILD_PACKAGES)
     # Packing information
     SET(CPACK_PACKAGE_NAME                    "assimp{ASSIMP_VERSION_MAJOR}.{ASSIMP_VERSION_MINOR}")
@@ -635,7 +642,7 @@ IF(CMAKE_CPACK_COMMAND AND UNIX AND ASSIMP_OPT_BUILD_PACKAGES)
     SET(CPACK_DEBIAN_PACKAGE_SECTION  "libs" )
     SET(CPACK_DEBIAN_PACKAGE_DEPENDS  "${CPACK_COMPONENTS_ALL}")
     SET(CPACK_DEBIAN_PACKAGE_SUGGESTS)
-  set(cPACK_DEBIAN_PACKAGE_NAME     "assimp")
+    SET(cPACK_DEBIAN_PACKAGE_NAME     "assimp")
     SET(CPACK_DEBIAN_PACKAGE_REMOVE_SOURCE_FILES contrib/gtest contrib/zlib workspaces test doc obj samples packaging)
     SET(CPACK_DEBIAN_PACKAGE_SOURCE_COPY svn export --force)
     SET(CPACK_DEBIAN_CHANGELOG)
@@ -651,6 +658,7 @@ IF(CMAKE_CPACK_COMMAND AND UNIX AND ASSIMP_OPT_BUILD_PACKAGES)
     INCLUDE(CPack)
     INCLUDE(DebSourcePPA)
   ENDIF()
+ENDIF()
 
 if(WIN32)
   if (CMAKE_SIZEOF_VOID_P EQUAL 8)

appveyor.yml

@@ -17,10 +17,10 @@ matrix:
     
 image:
   - Visual Studio 2013
-  - Visual Studio 2015
-  - Visual Studio 2017
+  #- Visual Studio 2015
+  #- Visual Studio 2017
   - Visual Studio 2019
-  - MinGW  
+  #- MinGW  
     
 platform:
   - Win32