Can't compile

[ghost]

I tried compiling this on my Intel NUC6i3SYH running Debian Unstable, but I got the following error with both RetroPie/EmulationStation and Aloshi/EmulationStation:

[  2%] Built target nanosvg
[  4%] Built target pugixml
[  5%] Building CXX object es-core/CMakeFiles/es-core.dir/src/Renderer_draw_gl.cpp.o
In file included from /home/wb9688/projects/EmulationStation/es-core/src/Renderer_draw_gl.cpp:9:0:
/home/wb9688/projects/EmulationStation/es-core/src/Util.h:18:22: error: ‘float round(float)’ conflicts with a previous declaration
 float round(float num);
                      ^
In file included from /usr/include/c++/6/complex:44:0,
                 from /usr/include/eigen3/Eigen/Core:73,
                 from /usr/include/eigen3/Eigen/Dense:1,
                 from /home/wb9688/projects/EmulationStation/es-core/src/Renderer.h:7,
                 from /home/wb9688/projects/EmulationStation/es-core/src/Renderer_draw_gl.cpp:2:
/usr/include/c++/6/cmath:1708:3: note: previous declaration ‘constexpr float std::round(float)’
   round(float __x)
   ^~~~~
/home/wb9688/projects/EmulationStation/es-core/src/Renderer_draw_gl.cpp: In function ‘void Renderer::drawRect(float, float, float, float, unsigned int, GLenum, GLenum)’:
/home/wb9688/projects/EmulationStation/es-core/src/Renderer_draw_gl.cpp:90:24: error: call of overloaded ‘round(float&)’ is ambiguous
   drawRect((int)round(x), (int)round(y), (int)round(w), (int)round(h), color, blend_sfactor, blend_dfactor);
                        ^
In file included from /usr/include/features.h:364:0,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/os_defines.h:39,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/c++config.h:495,
                 from /usr/include/c++/6/string:38,
                 from /home/wb9688/projects/EmulationStation/es-core/src/platform.h:18,
                 from /home/wb9688/projects/EmulationStation/es-core/src/Renderer_draw_gl.cpp:1:
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:319:1: note: candidate: double round(double)
 __MATHCALLX (round,, (_Mdouble_ __x), (__const__));
 ^
In file included from /usr/include/c++/6/complex:44:0,
                 from /usr/include/eigen3/Eigen/Core:73,
                 from /usr/include/eigen3/Eigen/Dense:1,
                 from /home/wb9688/projects/EmulationStation/es-core/src/Renderer.h:7,
                 from /home/wb9688/projects/EmulationStation/es-core/src/Renderer_draw_gl.cpp:2:
/usr/include/c++/6/cmath:1712:3: note: candidate: constexpr long double std::round(long double)
   round(long double __x)
   ^~~~~
/usr/include/c++/6/cmath:1708:3: note: candidate: constexpr float std::round(float)
   round(float __x)
   ^~~~~
In file included from /home/wb9688/projects/EmulationStation/es-core/src/Renderer_draw_gl.cpp:9:0:
/home/wb9688/projects/EmulationStation/es-core/src/Util.h:18:7: note: candidate: float round(float)
 float round(float num);
       ^~~~~
/home/wb9688/projects/EmulationStation/es-core/src/Renderer_draw_gl.cpp:90:39: error: call of overloaded ‘round(float&)’ is ambiguous
   drawRect((int)round(x), (int)round(y), (int)round(w), (int)round(h), color, blend_sfactor, blend_dfactor);
                                       ^
In file included from /usr/include/features.h:364:0,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/os_defines.h:39,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/c++config.h:495,
                 from /usr/include/c++/6/string:38,
                 from /home/wb9688/projects/EmulationStation/es-core/src/platform.h:18,
                 from /home/wb9688/projects/EmulationStation/es-core/src/Renderer_draw_gl.cpp:1:
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:319:1: note: candidate: double round(double)
 __MATHCALLX (round,, (_Mdouble_ __x), (__const__));
 ^
In file included from /usr/include/c++/6/complex:44:0,
                 from /usr/include/eigen3/Eigen/Core:73,
                 from /usr/include/eigen3/Eigen/Dense:1,
                 from /home/wb9688/projects/EmulationStation/es-core/src/Renderer.h:7,
                 from /home/wb9688/projects/EmulationStation/es-core/src/Renderer_draw_gl.cpp:2:
/usr/include/c++/6/cmath:1712:3: note: candidate: constexpr long double std::round(long double)
   round(long double __x)
   ^~~~~
/usr/include/c++/6/cmath:1708:3: note: candidate: constexpr float std::round(float)
   round(float __x)
   ^~~~~
In file included from /home/wb9688/projects/EmulationStation/es-core/src/Renderer_draw_gl.cpp:9:0:
/home/wb9688/projects/EmulationStation/es-core/src/Util.h:18:7: note: candidate: float round(float)
 float round(float num);
       ^~~~~
/home/wb9688/projects/EmulationStation/es-core/src/Renderer_draw_gl.cpp:90:54: error: call of overloaded ‘round(float&)’ is ambiguous
   drawRect((int)round(x), (int)round(y), (int)round(w), (int)round(h), color, blend_sfactor, blend_dfactor);
                                                      ^
In file included from /usr/include/features.h:364:0,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/os_defines.h:39,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/c++config.h:495,
                 from /usr/include/c++/6/string:38,
                 from /home/wb9688/projects/EmulationStation/es-core/src/platform.h:18,
                 from /home/wb9688/projects/EmulationStation/es-core/src/Renderer_draw_gl.cpp:1:
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:319:1: note: candidate: double round(double)
 __MATHCALLX (round,, (_Mdouble_ __x), (__const__));
 ^
In file included from /usr/include/c++/6/complex:44:0,
                 from /usr/include/eigen3/Eigen/Core:73,
                 from /usr/include/eigen3/Eigen/Dense:1,
                 from /home/wb9688/projects/EmulationStation/es-core/src/Renderer.h:7,
                 from /home/wb9688/projects/EmulationStation/es-core/src/Renderer_draw_gl.cpp:2:
/usr/include/c++/6/cmath:1712:3: note: candidate: constexpr long double std::round(long double)
   round(long double __x)
   ^~~~~
/usr/include/c++/6/cmath:1708:3: note: candidate: constexpr float std::round(float)
   round(float __x)
   ^~~~~
In file included from /home/wb9688/projects/EmulationStation/es-core/src/Renderer_draw_gl.cpp:9:0:
/home/wb9688/projects/EmulationStation/es-core/src/Util.h:18:7: note: candidate: float round(float)
 float round(float num);
       ^~~~~
/home/wb9688/projects/EmulationStation/es-core/src/Renderer_draw_gl.cpp:90:69: error: call of overloaded ‘round(float&)’ is ambiguous
   drawRect((int)round(x), (int)round(y), (int)round(w), (int)round(h), color, blend_sfactor, blend_dfactor);
                                                                     ^
In file included from /usr/include/features.h:364:0,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/os_defines.h:39,
                 from /usr/include/x86_64-linux-gnu/c++/6/bits/c++config.h:495,
                 from /usr/include/c++/6/string:38,
                 from /home/wb9688/projects/EmulationStation/es-core/src/platform.h:18,
                 from /home/wb9688/projects/EmulationStation/es-core/src/Renderer_draw_gl.cpp:1:
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:319:1: note: candidate: double round(double)
 __MATHCALLX (round,, (_Mdouble_ __x), (__const__));
 ^
In file included from /usr/include/c++/6/complex:44:0,
                 from /usr/include/eigen3/Eigen/Core:73,
                 from /usr/include/eigen3/Eigen/Dense:1,
                 from /home/wb9688/projects/EmulationStation/es-core/src/Renderer.h:7,
                 from /home/wb9688/projects/EmulationStation/es-core/src/Renderer_draw_gl.cpp:2:
/usr/include/c++/6/cmath:1712:3: note: candidate: constexpr long double std::round(long double)
   round(long double __x)
   ^~~~~
/usr/include/c++/6/cmath:1708:3: note: candidate: constexpr float std::round(float)
   round(float __x)
   ^~~~~
In file included from /home/wb9688/projects/EmulationStation/es-core/src/Renderer_draw_gl.cpp:9:0:
/home/wb9688/projects/EmulationStation/es-core/src/Util.h:18:7: note: candidate: float round(float)
 float round(float num);
       ^~~~~
es-core/CMakeFiles/es-core.dir/build.make:278: recipe for target 'es-core/CMakeFiles/es-core.dir/src/Renderer_draw_gl.cpp.o' failed
make[2]: *** [es-core/CMakeFiles/es-core.dir/src/Renderer_draw_gl.cpp.o] Error 1
CMakeFiles/Makefile2:217: recipe for target 'es-core/CMakeFiles/es-core.dir/all' failed
make[1]: *** [es-core/CMakeFiles/es-core.dir/all] Error 2
Makefile:149: recipe for target 'all' failed
make: *** [all] Error 2

[joolswills]

Would need a full log including cmake stage.

Try using gcc 4.9 - note this ES is designed and supported for use as part of retropie only.

[joolswills]

Looks like you are using gcc6 ? not supported or tested so you will need to use an older gcc.

[ghost]

I'm using gcc6, btw Aloshi/EmulationStation#594 fixes it…

[joolswills]

Thanks. Will include the fix.

[robindegen]

@joolswills Did you perhaps forget to merge the actual PR? The issue is closed but the change is not in master? I had to manually apply the PR and then my issue was fixed.

[hex007]

@robindegen It was included in master long ago

cdd819e

[robindegen]

@hex007 Ah I see where the confusion is now. The emulationstation.org website still points to Aloshi/EmulationStation , which hasn't been updated in 3 years. Maybe someone should fix that link 😉

[hex007]

Emulationstation.org is Aloshi's website and not Retropie's