libsqlite3.dylib與CMake鏈接

Question

我正在嘗試使用CMake將libsqlite3.dylib與C ++鏈接，但我不斷收到以下錯誤：

Undefined symbols for architecture x86_64:
  "_sqlite3_close", referenced from:
      OpnavCamera::~OpnavCamera() in opnav_camera.cpp.o
      OpnavCamera::updateState() in opnav_camera.cpp.o
  "_sqlite3_exec", referenced from:
      select_stmt(char const*) in opnav_camera.cpp.o
  "_sqlite3_open", referenced from:
      OpnavCamera::updateState() in opnav_camera.cpp.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make[2]: *** [../modules/opnav_camera/_opnav_camera.so] Error 1
make[1]: *** [SimCode/CMakeFiles/_opnav_camera.dir/all] Error 2
make: *** [all] Error 2

在線瀏覽，看來我沒有成功鏈接圖書館。 我是CMake的新手，所以我不知道自己在做什么。

我已將以下內容添加到我的CMakelists.txt中：

#SQLite 3

# Look for the header file.
FIND_PATH(SQLITE3_INCLUDE_DIR NAMES sqlite3.h)

# Look for the library.
FIND_LIBRARY(SQLITE3_LIBRARY NAMES sqlite3.0)

# Handle the QUIETLY and REQUIRED arguments and set SQLITE3_FOUND to TRUE if all listed variables are TRUE.
INCLUDE(FindPackageHandleStandardArgs)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(SQLITE3 DEFAULT_MSG SQLITE3_LIBRARY SQLITE3_INCLUDE_DIR)

# Copy the results to the output variables.
IF(SQLITE3_FOUND)
  SET(SQLITE3_LIBRARIES ${SQLITE3_LIBRARY})
  SET(SQLITE3_INCLUDE_DIRS ${SQLITE3_INCLUDE_DIR})
  message( " Found ")
ELSE(SQLITE3_FOUND)
  SET(SQLITE3_LIBRARIES)
  SET(SQLITE3_INCLUDE_DIRS)
ENDIF(SQLITE3_FOUND)

set (CMAKE_SHARED_LINKER_FLAGS "-Wl,--as-needed")

MARK_AS_ADVANCED(SQLITE3_INCLUDE_DIRS SQLITE3_LIBRARIES)

CMake正在找到該庫，但我認為我只是在如何實際鏈接它方面缺少了一步。 在此處輸入圖片說明

我想念哪一塊？

Answer 1

ld: symbol(s) not found for architecture x86_64

看來您正在構建64位應用程序，並嘗試鏈接到32位庫。 您將需要鏈接到庫的64位版本。