CLion不能识别SDL2_image
CLion does not recognize SDL2_image
我已经在/usr/include/sdl2上安装了SDL2_image库(在这个目录中我可以找到SDL_image.h)。
当我用CLion编译时,一切都很好,但是,在编辑器中,SDL2_image库的包含和函数出现错误(该库是由编译器找到的,但编辑器没有找到)。
这是我的CMake:
cmake_minimum_required(VERSION 3.2)
project(sdl)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
set(SOURCE_FILES main.cpp)
add_executable(sdl ${SOURCE_FILES} Game.cpp Game.h)
INCLUDE(FindPkgConfig)
PKG_SEARCH_MODULE(SDL2 REQUIRED sdl2)
PKG_SEARCH_MODULE(SDL2IMAGE REQUIRED SDL2_image>=2.0.0)
INCLUDE_DIRECTORIES(${SDL2_INCLUDE_DIRS} ${SDL2IMAGE_INCLUDE_DIRS})
TARGET_LINK_LIBRARIES(${PROJECT_NAME} ${SDL2_LIBRARIES} ${SDL2IMAGE_LIBRARIES})
add_custom_command(TARGET sdl POST_BUILD
COMMAND ${CMAKE_COMMAND} -E copy_directory
${CMAKE_SOURCE_DIR}/assets
$<TARGET_FILE_DIR:sdl>/assets)
有什么问题吗?
使用FindSDL2_image。cmake文件:
# Locate SDL2_image library
# This module defines
# SDL2_IMAGE_LIBRARY, the name of the library to link against
# SDL2_IMAGE_FOUND, if false, do not try to link to SDL2_image
# SDL2_IMAGE_INCLUDE_DIR, where to find SDL_image.h
#
# Additional Note: If you see an empty SDL2_IMAGE_LIBRARY_TEMP in your configuration
# and no SDL2_IMAGE_LIBRARY, it means CMake did not find your SDL2_Image library
# (SDL2_image.dll, libsdl2_image.so, SDL2_image.framework, etc).
# Set SDL2_IMAGE_LIBRARY_TEMP to point to your SDL2 library, and configure again.
# Similarly, if you see an empty SDL2MAIN_LIBRARY, you should set this value
# as appropriate. These values are used to generate the final SDL2_IMAGE_LIBRARY
# variable, but when these values are unset, SDL2_IMAGE_LIBRARY does not get created.
#
# $SDL2 is an environment variable that would
# correspond to the ./configure --prefix=$SDL2
# used in building SDL2.
# l.e.galup 9-20-02
#
# Modified by Eric Wing.
# Added code to assist with automated building by using environmental variables
# and providing a more controlled/consistent search behavior.
# Added new modifications to recognize OS X frameworks and
# additional Unix paths (FreeBSD, etc).
# Also corrected the header search path to follow "proper" SDL2 guidelines.
# Added a search for SDL2main which is needed by some platforms.
# Added a search for threads which is needed by some platforms.
# Added needed compile switches for MinGW.
#
# On OSX, this will prefer the Framework version (if found) over others.
# People will have to manually change the cache values of
# SDL2_IMAGE_LIBRARY to override this selection or set the CMake environment
# CMAKE_INCLUDE_PATH to modify the search paths.
#
# Note that the header path has changed from SDL2/SDL.h to just SDL.h
# This needed to change because "proper" SDL2 convention
# is #include "SDL.h", not <SDL2/SDL.h>. This is done for portability
# reasons because not all systems place things in SDL2/ (see FreeBSD).
#
# Ported by Johnny Patterson. This is a literal port for SDL2 of the FindSDL.cmake
# module with the minor edit of changing "SDL" to "SDL2" where necessary. This
# was not created for redistribution, and exists temporarily pending official
# SDL2 CMake modules.
#
# Note that on windows this will only search for the 32bit libraries, to search
# for 64bit change x86/i686-w64 to x64/x86_64-w64
#=============================================================================
# Copyright 2003-2009 Kitware, Inc.
#
# CMake - Cross Platform Makefile Generator
# Copyright 2000-2014 Kitware, Inc.
# Copyright 2000-2011 Insight Software Consortium
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# * Neither the names of Kitware, Inc., the Insight Software Consortium,
# nor the names of their contributors may be used to endorse or promote
# products derived from this software without specific prior written
# permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
# This software is distributed WITHOUT ANY WARRANTY; without even the
# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the License for more information.
#=============================================================================
# (To distribute this file outside of CMake, substitute the full
# License text for the above reference.)
FIND_PATH(SDL2_IMAGE_INCLUDE_DIR SDL_image.h
HINTS
${SDL2}
$ENV{SDL2}
$ENV{SDL2_IMAGE}
PATH_SUFFIXES include/SDL2 include SDL2
i686-w64-mingw32/include/SDL2
x86_64-w64-mingw32/include/SDL2
PATHS
~/Library/Frameworks
/Library/Frameworks
/usr/local/include/SDL2
/usr/include/SDL2
/sw # Fink
/opt/local # DarwinPorts
/opt/csw # Blastwave
/opt
)
# Lookup the 64 bit libs on x64
IF(CMAKE_SIZEOF_VOID_P EQUAL 8)
FIND_LIBRARY(SDL2_IMAGE_LIBRARY_TEMP
NAMES SDL2_image
HINTS
${SDL2}
$ENV{SDL2}
$ENV{SDL2_IMAGE}
PATH_SUFFIXES lib64 lib
lib/x64
x86_64-w64-mingw32/lib
PATHS
/sw
/opt/local
/opt/csw
/opt
)
# On 32bit build find the 32bit libs
ELSE(CMAKE_SIZEOF_VOID_P EQUAL 8)
FIND_LIBRARY(SDL2_IMAGE_LIBRARY_TEMP
NAMES SDL2_image
HINTS
${SDL2}
$ENV{SDL2}
$ENV{SDL2_IMAGE}
PATH_SUFFIXES lib
lib/x86
i686-w64-mingw32/lib
PATHS
/sw
/opt/local
/opt/csw
/opt
)
ENDIF(CMAKE_SIZEOF_VOID_P EQUAL 8)
SET(SDL2_IMAGE_FOUND "NO")
IF(SDL2_IMAGE_LIBRARY_TEMP)
# Set the final string here so the GUI reflects the final state.
SET(SDL2_IMAGE_LIBRARY ${SDL2_IMAGE_LIBRARY_TEMP} CACHE STRING "Where the SDL2_image Library can be found")
# Set the temp variable to INTERNAL so it is not seen in the CMake GUI
SET(SDL2_IMAGE_LIBRARY_TEMP "${SDL2_IMAGE_LIBRARY_TEMP}" CACHE INTERNAL "")
SET(SDL2_IMAGE_FOUND "YES")
ENDIF(SDL2_IMAGE_LIBRARY_TEMP)
INCLUDE(FindPackageHandleStandardArgs)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(SDL2_IMAGE REQUIRED_VARS SDL2_IMAGE_LIBRARY SDL2_IMAGE_INCLUDE_DIR)
在我的源代码树中,我有一个名为cmake_modules的文件夹,上面有find FindSDL2_image。
你可以阅读。cmake文件的底部来查看库和包含要使用的名称:FIND_PACKAGE_HANDLE_STANDARD_ARGS(SDL2_IMAGE REQUIRED_VARS SDL2_IMAGE_LIBRARY SDL2_IMAGE_INCLUDE_DIR)
PROJECT(project_name)
SET(SRC_FILES xxx.c xxx.c xxx.c xxx.c)
FIND_PACKAGE(SDL2 REQUIRED)
INCLUDE_DIRECTORIES(${SDL2_INCLUDE_DIR})
FIND_PACKAGE(OPENGL REQUIRED)
INCLUDE_DIRECTORIES( ${OPENGL_INCLUDE_DIR})
FIND_PACKAGE(SDL_IMAGE REQUIRED)
INCLUDE_DIRECTORIES( ${SDL2_IMAGE_INCLUDE_DIR})
ADD_LIBRARY(project_name SHARED ${SRC_FILES})
TARGET_LINK_LIBRARIES(project_name ${SDL2_LIBRARY} ${OPENGL_LIBRARIES} ${SDL2_IMAGE_LIBRARY})
FindPkgConfig
模块调用pkg-config
命令获取链接/编译器标志。在您的情况下,pkg-config
可能找不到设置,因此CMake无法获得该信息。
请尝试打开控制台/终端(或msys, msys2,无论你使用的是什么)。然后调用pkg-config SDL2_image --libs
。如果它正常工作,你应该看到类似(我在Windows上使用MSYS2,在其他平台上可能有点不同):-
$ pkg-config SDL2_image --libs
-LC:/msys64/mingw64/lib -lSDL2_image -lmingw32 -lSDL2main -lSDL2
注意:该命令区分大小写。
如果它不工作,那么你可能不得不手动更新pkgconfig文件。这在不同的系统中是不同的(Linux上的默认值是/usr/lib/pkgconfig,但这也可能因发行版而异)。在最坏的情况下,您将不得不手动编写pkgconfig文件。
无论如何,如果你能说明你目前使用的操作系统和平台就更好了。
取决于你使用的是什么编译器,可能还有其他因素,这取决于你得到的是什么错误。
TARGET_LINK_LIBRARIES(${PROJECT_NAME} ${SDL2_LIBRARIES} ${SDL2IMAGE_LIBRARIES})
您可能需要更多的链接器,或者它们可能由于某些原因无法正确拾取。
对于一个类似的项目,我的是这样的
target_link_libraries(${PROJECT_NAME} -lmingw32 -lSDL2main -lSDL2 -lSDL2_image)
使用mingw编译器,它似乎工作正常。
- 以线程安全的方式调用"QQuickPaintedItem::updateImage(const QImage&image)"(no QThread)
- 如何创建事件驱动的 SDL2 应用程序
- 使用 SDL2 和SDL_image C++加载图像
- 将 SDL2 与 CMake 链接起来
- SDL2 透明背景
- 如何在使用 SDL2 的 Eclipse 中构建 c++ 程序
- 不带轮询的 SDL2 事件回调
- C++ SDL2:如何将矩形渲染到多个视口中
- SDL2 调整窗口大小后如何缩放鼠标坐标?
- SDL2 二维纹理分配/池化
- 如何使用 sdl2 快速绘制像素网格?
- 看不到文件'SDL2.lib'
- 我的 SDL2 程序需要哪些二进制文件,以便它在另一台未安装 SDL2 的计算机中工作
- Inference pytorch C++ with alexnet and cv::imread image
- SDL2 无法正确绘制矩形
- 实施英特尔实感和 SDL2 时出现问题
- 找不到 sdl2.dll
- SDL2 程序只写入部分字符串
- 为什么在使用 SDL2 时仍然收到'undefined reference'链接器错误?
- 我可以将SDL-1.2.15与SDL2-Image Extension一起使用