【问题标题】:‘sqlite3_prepare_v2’ was not declared in this scope'sqlite3_prepare_v2' 未在此范围内声明
【发布时间】:2016-03-30 04:10:03
【问题描述】:

由于sqlite3 的版本太旧,我安装了一个替代的新版本sqlite3。新版本安装在以下路径:

/export/home/hh/hh/sqlite/include
/export/home/hh/hh/sqlite/lib

我改编了this FindSQLite3.cmake 并在cmake 中使用它来找到新的sqlite3MESSAGE的输出显示cmake可以找到新版本的includeslibs

-- SQLite3 include: /export/home/hh/hh/sqlite/include
-- SQLite3 lib: /export/home/hh/hh/sqlite/lib/libsqlite3.so
-- SQLite3 IS USED

当我安装我的项目时,出现了错误‘sqlite3_prepare_v2’ was not declared in this scope。但是sqlite3_prepare_v2 是包含在新版本中的,应该声明它。我认为可能的原因是cmake 找不到新版本,而是找到旧版本。有什么帮助吗?提前谢谢!

我的FindSQLite3.cmake

if (SQLITE3_LIBRARIES AND SQLITE3_INCLUDE_DIRS)
  # in cache already
  set(SQLITE3_FOUND TRUE)
else (SQLITE3_LIBRARIES AND SQLITE3_INCLUDE_DIRS)
  # use pkg-config to get the directories and then use these values
  # in the FIND_PATH() and FIND_LIBRARY() calls
  if (${CMAKE_MAJOR_VERSION} EQUAL 2 AND ${CMAKE_MINOR_VERSION} EQUAL 6)
    include(UsePkgConfig)
    pkgconfig(sqlite3 _SQLITE3_INCLUDEDIR _SQLITE3_LIBDIR _SQLITE3_LDFLAGS _SQLITE3_CFLAGS)
    MESSAGE(STATUS "Test ${_SQLITE3_INCLUDEDIR} ${_SQLITE3_LIBDIR} ${_SQLITE3_LDFLAGS} ${_SQLITE3_CFLAGS}")
  else (${CMAKE_MAJOR_VERSION} EQUAL 2 AND ${CMAKE_MINOR_VERSION} EQUAL 6)
    find_package(PkgConfig REQUIRED)
    #MESSAGE(STATUS "TEST-1")
    if (PKG_CONFIG_FOUND)
      pkg_check_modules(_SQLITE3 REQUIRED sqlite-3.11)
    #MESSAGE(STATUS "TEST-2")
    endif (PKG_CONFIG_FOUND)
  endif (${CMAKE_MAJOR_VERSION} EQUAL 2 AND ${CMAKE_MINOR_VERSION} EQUAL 6)

   find_path(SQLITE3_INCLUDE_DIR
    NAMES
      sqlite3.h
    PATHS
      ${_SQLITE3_INCLUDEDIR}
      /export/home/hh/hh/sqlite/include
  )

  find_library(SQLITE3_LIBRARY
    NAMES
      sqlite3
    PATHS
      ${_SQLITE3_LIBDIR}
      /export/home/hh/hh/sqlite/lib
  )

  if (SQLITE3_LIBRARY)
    set(SQLITE3_FOUND TRUE)
  endif (SQLITE3_LIBRARY)

  set(SQLITE3_INCLUDE_DIRS
    ${SQLITE3_INCLUDE_DIR}  
  )

#MESSAGE(STATUS "${SQLITE3_INCLUDE_DIR}")

  if (SQLITE3_FOUND)
    set(SQLITE3_LIBRARIES
      ${SQLITE3_LIBRARIES}
      ${SQLITE3_LIBRARY}
    )
#MESSAGE(STATUS "${SQLITE3_LIBRARIES} ${SQLITE3_LIBRARY}")
  endif (SQLITE3_FOUND)

  if (SQLITE3_INCLUDE_DIRS AND SQLITE3_LIBRARIES)
     set(SQLITE3_FOUND TRUE)
  endif (SQLITE3_INCLUDE_DIRS AND SQLITE3_LIBRARIES)

  if (SQLITE3_FOUND)
    if (NOT Sqlite3_FIND_QUIETLY)
#      MESSAGE(STATUS "Found Sqlite3: ${SQLITE3_LIBRARIES}")
    endif (NOT Sqlite3_FIND_QUIETLY)
  else (SQLITE3_FOUND)
    if (Sqlite3_FIND_REQUIRED)
      MESSAGE(FATAL_ERROR "Could not find Sqlite3")
    endif (Sqlite3_FIND_REQUIRED)
  endif (SQLITE3_FOUND)

  # show the SQLITE3_INCLUDE_DIRS and SQLITE3_LIBRARIES variables only in the advanced view
  mark_as_advanced(SQLITE3_INCLUDE_DIRS SQLITE3_LIBRARIES)

endif (SQLITE3_LIBRARIES AND SQLITE3_INCLUDE_DIRS)

我的CMakeLists.txt中的代码行:

LIST(APPEND CMAKE_INCLUDE_PATH "/export/home/hh/hh/sqlite/include")
LIST(APPEND CMAKE_LIBRARY_PATH "/export/home/hh/hh/sqlite/lib")

LIST(APPEND CMAKE_MODULE_PATH "/export/home/hh/hh/iRoot-make/cmake")

FIND_PACKAGE(SQLite3 REQUIRED)

MESSAGE(STATUS "SQLite3 include: ${SQLITE3_INCLUDE_DIRS}")
MESSAGE(STATUS "SQLite3 lib: ${SQLITE3_LIBRARIES}")

IF(SQLITE3_FOUND)
    MESSAGE(STATUS "SQLite3 IS USED")
    INCLUDE_DIRECTORIES(${SQLITE_INCLUDE_DIRS})
    LINK_DIRECTORIES(${SQLITE3_LIBRARIES})
ELSE(SQLITE3_FOUND)
    MESSAGE(STATUS "SQLite3 IS NOT FOUND")
ENDIF(SQLITE3_FOUND)

aux_source_directory(. DIR_SRCS)
ADD_EXECUTABLE(test ${DIR_SRCS})

#TARGET_LINK_LIBRARIES(test ${SQLITE3_LIBRARIES} ${Boost_LIBRARIES} ${MPI_LIBRARIES} ${VTK_LIBRARIES})

# set location of binary generated by the program, 
# here PROJECT_BINARY_DIR = DIR OF build
SET(EXECUTABLE_OUTPUT_PATH ${PROJECT_BINARY_DIR}/bin)

# set location of lib generated by the program
SET(LIBRARY_OUTPUT_PATH ${PROJECT_BINARY_DIR}/lib)

install(TARGETS test DESTINATION bin)

sqlite3.h 包含在我的标题中:

#include "sqlite3.h"

sqlite3_prepare_v2在对应的cpp文件中使用。

【问题讨论】:

  • 向我们展示您如何使用 CMakeLists.txt 中的find_package 结果来编译您的程序。当然还有你的程序。
  • 再次嗨 @Tsyvarev 我已经更新了帖子。
  • find_package(SQLite3) 设置变量SQLITE3_INCLUDE_DIRS,但您使用SQLITE_INCLUDE_DIRS(没有3)作为include_directories()
  • @Tsyvarev 对不起,我把它改成SQLITE3_INCLUDE_DIRS,然后重新安装了项目,但是出现了数百个错误undefined reference
  • 所以你需要取消注释target_link_libraries调用。

标签: sqlite cmake


【解决方案1】:

CMakeCache.txt(或使用 cmake-gui)中设置 SQLITE3_LIBRARIESSQLITE3_INCLUDE_DIRS,使它们指向所需的库版本。删除SQLITE3_FOUNDSQLITE3_DEFINITIONS 并重新运行CMake。

【讨论】:

  • 您好,谢谢您的回复,SQLITE3_LIBRARIESSQLITE3_INCLUDE_DIRS如何设置,SQLITE3_FOUNDSQLITE3_DEFINITIONS如何删除?你能详细解释一下你的解决方案吗?谢谢。
  • 正如我所描述的:您可以使用 cmake-gui 并查看所有变量及其值。或者您可以在构建目录中编辑 CMakeCache.txt。
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