closes https://github.com/assimp/assimp/issues/1592: make install optional, default enabled.

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
@@ -601,55 +605,59 @@ 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 )
-INSTALL( FILES "${PROJECT_BINARY_DIR}/assimp.pc" DESTINATION ${ASSIMP_LIB_INSTALL_DIR}/pkgconfig/ COMPONENT ${LIBASSIMP-DEV_COMPONENT})
-
-IF(CMAKE_CPACK_COMMAND AND UNIX AND ASSIMP_OPT_BUILD_PACKAGES)
-  # Packing information
-  SET(CPACK_PACKAGE_NAME                    "assimp{ASSIMP_VERSION_MAJOR}.{ASSIMP_VERSION_MINOR}")
-  SET(CPACK_PACKAGE_CONTACT "" CACHE STRING "Package maintainer and PGP signer.")
-  SET(CPACK_PACKAGE_VENDOR                  "https://github.com/assimp")
-  SET(CPACK_PACKAGE_DISPLAY_NAME            "Assimp ${ASSIMP_VERSION}")
-  SET(CPACK_PACKAGE_DESCRIPTION_SUMMARY     " - Open Asset Import Library ${ASSIMP_VERSION}")
-  SET(CPACK_PACKAGE_VERSION                 "${ASSIMP_VERSION}.${ASSIMP_PACKAGE_VERSION}" )
-  SET(CPACK_PACKAGE_VERSION_MAJOR           "${ASSIMP_VERSION_MAJOR}")
-  SET(CPACK_PACKAGE_VERSION_MINOR           "${ASSIMP_VERSION_MINOR}")
-  SET(CPACK_PACKAGE_VERSION_PATCH           "${ASSIMP_VERSION_PATCH}")
-  SET(CPACK_PACKAGE_INSTALL_DIRECTORY       "assimp${ASSIMP_VERSION_MAJOR}.${ASSIMP_VERSION_MINOR}")
-  SET(CPACK_RESOURCE_FILE_LICENSE           "${CMAKE_CURRENT_SOURCE_DIR}/LICENSE")
-
-  STRING(TOUPPER ${LIBASSIMP_COMPONENT}     "LIBASSIMP_COMPONENT_UPPER")
-  STRING(TOUPPER ${LIBASSIMP-DEV_COMPONENT} "LIBASSIMP-DEV_COMPONENT_UPPER")
-
-  SET(CPACK_COMPONENT_ASSIMP-BIN_DISPLAY_NAME                       "tools")
-  SET(CPACK_COMPONENT_ASSIMP-BIN_DEPENDS                            "${LIBASSIMP_COMPONENT}" )
-  SET(CPACK_COMPONENT_${LIBASSIMP_COMPONENT_UPPER}_DISPLAY_NAME     "libraries")
-  SET(CPACK_COMPONENT_${LIBASSIMP-DEV_COMPONENT_UPPER}_DISPLAY_NAME "common headers and installs")
-  SET(CPACK_COMPONENT_${LIBASSIMP-DEV_COMPONENT_UPPER}_DEPENDS $    "{LIBASSIMP_COMPONENT}" )
-  SET(CPACK_COMPONENT_ASSIMP-DEV_DISPLAY_NAME                       "${CPACK_COMPONENT_${LIBASSIMP-DEV_COMPONENT}_DISPLAY_NAME}" )
-  SET(CPACK_COMPONENT_ASSIMP-DEV_DEPENDS                            "${LIBASSIMP-DEV_COMPONENT}" )
-  SET(CPACK_DEBIAN_BUILD_DEPENDS debhelper cmake zlib1g-dev pkg-config)
-
-  # debian
-  SET(CPACK_DEBIAN_PACKAGE_PRIORITY "optional")
-  SET(CPACK_DEBIAN_CMAKE_OPTIONS    "-DBUILD_ASSIMP_SAMPLES:BOOL=${ASSIMP_BUILD_SAMPLES}")
-  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_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)
-  execute_process(COMMAND lsb_release -is
-    OUTPUT_VARIABLE _lsb_distribution OUTPUT_STRIP_TRAILING_WHITESPACE
-    RESULT_VARIABLE _lsb_release_failed)
-  SET(CPACK_DEBIAN_DISTRIBUTION_NAME ${_lsb_distribution} CACHE STRING "Name of the distrubiton")
-  STRING(TOLOWER ${CPACK_DEBIAN_DISTRIBUTION_NAME} CPACK_DEBIAN_DISTRIBUTION_NAME)
-  IF( ${CPACK_DEBIAN_DISTRIBUTION_NAME} STREQUAL "ubuntu" )
-    SET(CPACK_DEBIAN_DISTRIBUTION_RELEASES lucid maverick natty oneiric precise CACHE STRING "Release code-names of the distrubiton release")
+IF ( ASSIMP_INSTALL )
+  INSTALL( FILES "${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}")
+    SET(CPACK_PACKAGE_CONTACT "" CACHE STRING "Package maintainer and PGP signer.")
+    SET(CPACK_PACKAGE_VENDOR                  "https://github.com/assimp")
+    SET(CPACK_PACKAGE_DISPLAY_NAME            "Assimp ${ASSIMP_VERSION}")
+    SET(CPACK_PACKAGE_DESCRIPTION_SUMMARY     " - Open Asset Import Library ${ASSIMP_VERSION}")
+    SET(CPACK_PACKAGE_VERSION                 "${ASSIMP_VERSION}.${ASSIMP_PACKAGE_VERSION}" )
+    SET(CPACK_PACKAGE_VERSION_MAJOR           "${ASSIMP_VERSION_MAJOR}")
+    SET(CPACK_PACKAGE_VERSION_MINOR           "${ASSIMP_VERSION_MINOR}")
+    SET(CPACK_PACKAGE_VERSION_PATCH           "${ASSIMP_VERSION_PATCH}")
+    SET(CPACK_PACKAGE_INSTALL_DIRECTORY       "assimp${ASSIMP_VERSION_MAJOR}.${ASSIMP_VERSION_MINOR}")
+    SET(CPACK_RESOURCE_FILE_LICENSE           "${CMAKE_CURRENT_SOURCE_DIR}/LICENSE")
+
+    STRING(TOUPPER ${LIBASSIMP_COMPONENT}     "LIBASSIMP_COMPONENT_UPPER")
+    STRING(TOUPPER ${LIBASSIMP-DEV_COMPONENT} "LIBASSIMP-DEV_COMPONENT_UPPER")
+
+    SET(CPACK_COMPONENT_ASSIMP-BIN_DISPLAY_NAME                       "tools")
+    SET(CPACK_COMPONENT_ASSIMP-BIN_DEPENDS                            "${LIBASSIMP_COMPONENT}" )
+    SET(CPACK_COMPONENT_${LIBASSIMP_COMPONENT_UPPER}_DISPLAY_NAME     "libraries")
+    SET(CPACK_COMPONENT_${LIBASSIMP-DEV_COMPONENT_UPPER}_DISPLAY_NAME "common headers and installs")
+    SET(CPACK_COMPONENT_${LIBASSIMP-DEV_COMPONENT_UPPER}_DEPENDS $    "{LIBASSIMP_COMPONENT}" )
+    SET(CPACK_COMPONENT_ASSIMP-DEV_DISPLAY_NAME                       "${CPACK_COMPONENT_${LIBASSIMP-DEV_COMPONENT}_DISPLAY_NAME}" )
+    SET(CPACK_COMPONENT_ASSIMP-DEV_DEPENDS                            "${LIBASSIMP-DEV_COMPONENT}" )
+    SET(CPACK_DEBIAN_BUILD_DEPENDS debhelper cmake zlib1g-dev pkg-config)
+
+    # debian
+    SET(CPACK_DEBIAN_PACKAGE_PRIORITY "optional")
+    SET(CPACK_DEBIAN_CMAKE_OPTIONS    "-DBUILD_ASSIMP_SAMPLES:BOOL=${ASSIMP_BUILD_SAMPLES}")
+    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_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)
+    execute_process(COMMAND lsb_release -is
+      OUTPUT_VARIABLE _lsb_distribution OUTPUT_STRIP_TRAILING_WHITESPACE
+      RESULT_VARIABLE _lsb_release_failed)
+    SET(CPACK_DEBIAN_DISTRIBUTION_NAME ${_lsb_distribution} CACHE STRING "Name of the distrubiton")
+    STRING(TOLOWER ${CPACK_DEBIAN_DISTRIBUTION_NAME} CPACK_DEBIAN_DISTRIBUTION_NAME)
+    IF( ${CPACK_DEBIAN_DISTRIBUTION_NAME} STREQUAL "ubuntu" )
+      SET(CPACK_DEBIAN_DISTRIBUTION_RELEASES lucid maverick natty oneiric precise CACHE STRING "Release code-names of the distrubiton release")
+    ENDIF()
+    SET(DPUT_HOST "" CACHE STRING "PPA repository to upload the debian sources")
+    INCLUDE(CPack)
+    INCLUDE(DebSourcePPA)
   ENDIF()
-  SET(DPUT_HOST "" CACHE STRING "PPA repository to upload the debian sources")
-  INCLUDE(CPack)
-  INCLUDE(DebSourcePPA)
 ENDIF()
 
 if(WIN32)