Merge pull request #1218 from Exiv2/0.27-maintenance-1216

0.27 maintenance 1216

CMakeLists.txt

@@ -136,7 +136,7 @@ if (EXIV2_TEAM_PACKAGING)
 endif()
 
 configure_file(cmake/exiv2.pc.in exiv2.pc @ONLY)
-install(FILES ${CMAKE_BINARY_DIR}/exiv2.pc DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
+install(FILES ${CMAKE_CURRENT_BINARY_DIR}/exiv2.pc DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
 
 # ******************************************************************************
 # Man page

cmake/mainSetup.cmake

@@ -27,5 +27,8 @@ if (UNIX)
     endif()
 endif()
 
-configure_file(cmake/exiv2_uninstall.cmake ${CMAKE_BINARY_DIR}/cmake_uninstall.cmake COPYONLY)
-add_custom_target(uninstall "${CMAKE_COMMAND}" -P "${CMAKE_BINARY_DIR}/cmake_uninstall.cmake")
+# Prevent conflicts when exiv2 is consumed in multiple-subdirectory projects.
+if (NOT TARGET uninstall)
+  configure_file(cmake/exiv2_uninstall.cmake ${CMAKE_BINARY_DIR}/cmake_uninstall.cmake COPYONLY)
+  add_custom_target(uninstall "${CMAKE_COMMAND}" -P "${CMAKE_BINARY_DIR}/cmake_uninstall.cmake")
+endif()