prepare to die2

kiwi@bobross:~/obs-studio/build$ cmake -DUNIX_STRUCTURE=1 -DCMAKE_INSTALL_PREFIX=/usr ..
-- The C compiler identification is GNU 4.9.2
-- The CXX compiler identification is GNU 4.9.2
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- OBS_VERSION: 0.12.2
-- Try C++11 flag = [-std=gnu++11]
-- Performing Test CXX11_FLAG_DETECTED
-- Performing Test CXX11_FLAG_DETECTED - Success
-- Found CXX11: -std=gnu++11
-- Looking for XOpenDisplay in /usr/lib/x86_64-linux-gnu/libX11.so;/usr/lib/x86_64-linux-gnu/libXext.so
-- Looking for XOpenDisplay in /usr/lib/x86_64-linux-gnu/libX11.so;/usr/lib/x86_64-linux-gnu/libXext.so - found
-- Looking for gethostbyname
-- Looking for gethostbyname - found
-- Looking for connect
-- Looking for connect - found
-- Looking for remove
-- Looking for remove - found
-- Looking for shmat
-- Looking for shmat - found
-- Found X11: /usr/lib/x86_64-linux-gnu/libX11.so
-- Found OpenGL: /usr/lib/x86_64-linux-gnu/libGL.so
-- Found FFmpeg: /usr/bin/../lib/libavcodec.so (found version "57.16.100") found components:  avcodec avfilter avdevice avutil swscale avformat swresample
-- Found Libcurl: /usr/lib/x86_64-linux-gnu/libcurl.so
-- Jansson >=2.5 not found, building bundled version
-- Looking for include file sys/types.h
-- Looking for include file sys/types.h - found
-- Looking for include file inttypes.h
-- Looking for include file inttypes.h - found
-- Looking for include file stdint.h
-- Looking for include file stdint.h - found
-- Looking for stddef.h
-- Looking for stddef.h - found
-- Check size of __int64
-- Check size of __int64 - failed
-- Check size of int64_t
-- Check size of int64_t - done
-- Check size of long long
-- Check size of long long - done
-- Check size of int32_t
-- Check size of int32_t - done
-- Check size of __int32
-- Check size of __int32 - failed
-- Check size of long
-- Check size of long - done
-- Check size of int
-- Check size of int - done
-- Check size of ssize_t
-- Check size of ssize_t - done
-- Check size of SSIZE_T
-- Check size of SSIZE_T - failed
-- Looking for strtoll
-- Looking for strtoll - found
-- Looking for strtoq
-- Looking for strtoq - found
-- Looking for _strtoi64
-- Looking for _strtoi64 - not found
-- Looking for include file locale.h
-- Looking for include file locale.h - found
-- Looking for localeconv
-- Looking for localeconv - found
-- Looking for setlocale
-- Looking for setlocale - found
-- Performing Test HAVE_INLINE
-- Performing Test HAVE_INLINE - Success
-- Performing Test HAVE___INLINE
-- Performing Test HAVE___INLINE - Success
-- Performing Test HAVE___INLINE__
-- Performing Test HAVE___INLINE__ - Success
-- Looking for snprintf
-- Looking for snprintf - found
-- Looking for _snprintf
-- Looking for _snprintf - not found
-- Found PkgConfig: /usr/bin/pkg-config (found version "0.28")
-- XCB[XCB]: Found component XCB
-- Found XCB_XCB: /usr/lib/x86_64-linux-gnu/libxcb.so
-- Found XCB: /usr/lib/x86_64-linux-gnu/libxcb.so
-- Found X11_XCB: /usr/lib/x86_64-linux-gnu/libX11-xcb.so
-- Looking for include file pthread.h
-- Looking for include file pthread.h - found
-- Looking for pthread_create
-- Looking for pthread_create - not found
-- Check if compiler accepts -pthread
-- Check if compiler accepts -pthread - yes
-- Found Threads: TRUE
-- Found FFmpeg: /usr/bin/../lib/libavformat.so (found version "57.19.100") found components:  avformat avutil swscale swresample avcodec
-- Using libavcodec for image loading in libobs
-- Found zlib: /usr/lib/x86_64-linux-gnu/libz.so
CMake Error at /usr/lib/x86_64-linux-gnu/cmake/Qt5Gui/Qt5GuiConfig.cmake:27 (message):
  The imported target "Qt5::Gui" references the file

     "/usr/lib/x86_64-linux-gnu/libGL.so"

  but this file does not exist.  Possible reasons include:

  * The file was deleted, renamed, or moved to another location.

  * An install or uninstall procedure did not complete successfully.

  * The installation package was faulty and contained

     "/usr/lib/x86_64-linux-gnu/cmake/Qt5Gui/Qt5GuiConfigExtras.cmake"

  but not all the files it references.

Call Stack (most recent call first):
  /usr/lib/x86_64-linux-gnu/cmake/Qt5Gui/Qt5GuiConfigExtras.cmake:32 (_qt5_Gui_check_file_exists)
  /usr/lib/x86_64-linux-gnu/cmake/Qt5Gui/Qt5GuiConfigExtras.cmake:56 (_qt5gui_find_extra_libs)
  /usr/lib/x86_64-linux-gnu/cmake/Qt5Gui/Qt5GuiConfig.cmake:158 (include)
  /usr/lib/x86_64-linux-gnu/cmake/Qt5Widgets/Qt5WidgetsConfig.cmake:100 (find_package)
  obs/CMakeLists.txt:32 (find_package)


-- Configuring incomplete, errors occurred!
See also "/home/kiwi/obs-studio/build/CMakeFiles/CMakeOutput.log".
See also "/home/kiwi/obs-studio/build/CMakeFiles/CMakeError.log".