Home / ubuntu / Questions / 902650
In Process
val is still with Monica
Asked: 2017-04-09 11:39:43 +0800 CST

SDL not found by CMake

  • 772

I am building cmake app that uses SDL. But this code says that SDL not found:

find_package(SDL)
find_package(SDL_mixer)
find_package(SDL_image)
find_package(SDL_ttf)
...
if( SDL_FOUND STREQUAL "YES" )
    MESSAGE( STATUS "SDL FOUND: " ${SDL_INCLUDE_DIR} " : " ${SDL_LIBRARY} )
    link_directories( ${SDL_LIBRARY} )
else( SDL_FOUND STREQUAL "NO" )
    MESSAGE( STATUS "SDL NOT FOUND: " ${SDL_INCLUDE_DIR} " : " ${SDL_LIBRARY} )
endif( SDL_FOUND STREQUAL "YES" )

Prints this strange message:

-- SDL NOT FOUND: /usr/include/SDL : /usr/lib/x86_64-linux-gnu/libSDLmain.a/usr/lib/x86_64-linux-gnu/libSDL.so-lpthread

As I checked, /usr/include/SDL exsist and contain all reuired headers, and library files (.a and .so) is at /usr/lib/x86_64-linux-gnu. What is going wrong?

UPD: After replacing STREQUAL by simple boolean check I can see it:

-- SDL FOUND: /usr/include/SDL : /usr/lib/x86_64-linux-gnu/libSDLmain.a/usr/lib/x86_64-linux-gnu/libSDL.so-lpthread
CMake Warning (dev) at CMakeLists.txt:55 (link_directories):
  This command specifies the relative path

    -lpthread

  as a link directory.

  Policy CMP0015 is not set: link_directories() treats paths relative to the
  source dir.  Run "cmake --help-policy CMP0015" for policy details.  Use the
  cmake_policy command to set the policy and suppress this warning.
This warning is for project developers.  Use -Wno-dev to suppress it.

But make failed:

fatal error: SDL.h: No such file or directory
16.04

0 Answers