Fedora compilation failed.

[PowerSnail]

I checked out v1.10.6, and tried to compile conky as suggested in the wiki. I did not change any configuration in ccmake ... Running make gave two errors:

1. error: 'function' in namespace 'std' does not name a template type
2. error: 'cpp_function' does not name a type; did you mena 'lua_KFunction'?

(full log at the end)

I tried the master branch as well, the same error was produced.

My OS: Fedora 26 64-bit

~ > cmake --version
cmake version 3.9.1

CMake suite maintained and supported by Kitware (kitware.com/cmake).

~ > make --version
GNU Make 4.2.1
Built for x86_64-redhat-linux-gnu
Copyright (C) 1988-2016 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

Output of make:

Scanning dependencies of target convertconf                                                                                                                                                                                                  
[  1%] Generating convertconf.h                                                                                                                                                                                                              
[  1%] Built target convertconf                                                                                                                                                                                                              
Scanning dependencies of target defconfig                                                                                                                                                                                                    
[  3%] Generating defconfig.h                                                                                                                                                                                                                
[  3%] Built target defconfig                                                                                                                                                                                                                
Scanning dependencies of target tcp-portmon                                                                                                                                                                                                  
[  5%] Building CXX object src/CMakeFiles/tcp-portmon.dir/libtcp-portmon.cc.o                                                                                                                                                                
[  7%] Linking CXX static library libtcp-portmon.a                                                                                                                                                                                           
[  7%] Built target tcp-portmon                            
Scanning dependencies of target conky                      
[  9%] Building CXX object src/CMakeFiles/conky.dir/c++wrap.cc.o                                                      
[ 11%] Building CXX object src/CMakeFiles/conky.dir/colours.cc.o     
In file included from /home/henry/software/conky/src/update-cb.hh:39:0,                                     
                 from /home/henry/software/conky/src/text_object.h:35,                                      
                 from /home/henry/software/conky/src/common.h:34,                                           
                 from /home/henry/software/conky/src/conky.h:37,                                            
                 from /home/henry/software/conky/src/colours.cc:30:                                         
/home/henry/software/conky/src/semaphore.hh:40:36: warning: dynamic exception specifications are deprecated in C++11 [-Wdeprecated]
  semaphore(unsigned int value = 0) throw(std::logic_error)                                                 
                                    ^~~~~             
/home/henry/software/conky/src/semaphore.hh:49:14: warning: dynamic exception specifications are deprecated in C++11 [-Wdeprecated]
  void post() throw(std::overflow_error)              
              ^~~~~        
In file included from /home/henry/software/conky/src/setting.hh:32:0,                                       
                 from /home/henry/software/conky/src/common.h:35,                                           
                 from /home/henry/software/conky/src/conky.h:37,                                            
                 from /home/henry/software/conky/src/colours.cc:30:                                         
/home/henry/software/conky/src/luamm.hh:39:15: error: ‘function’ in namespace ‘std’ does not name a template type
  typedef std::function<int(state *)> cpp_function;   
               ^~~~~~~~    
/home/henry/software/conky/src/luamm.hh:243:30: warning: dynamic exception specifications are deprecated in C++11 [-Wdeprecated]
   void checkstack(int extra) throw(std::bad_alloc);  
                              ^~~~~                   
/home/henry/software/conky/src/luamm.hh:250:26: error: ‘cpp_function’ does not name a type; did you mean ‘lua_KFunction’?
   void pushclosure(const cpp_function &fn, int n);   
                          ^~~~~~~~~~~~                
                          lua_KFunction               
/home/henry/software/conky/src/luamm.hh:251:27: error: ‘cpp_function’ does not name a type; did you mean ‘lua_KFunction’?
   void pushfunction(const cpp_function &fn) { pushclosure(fn, 0); }                                        
                           ^~~~~~~~~~~~               
                           lua_KFunction              
/home/henry/software/conky/src/luamm.hh:255:46: warning: dynamic exception specifications are deprecated in C++11 [-Wdeprecated]
   void rawgetfield(int index, const char *k) throw(std::bad_alloc);                                        
                                              ^~~~~   
/home/henry/software/conky/src/luamm.hh:257:46: warning: dynamic exception specifications are deprecated in C++11 [-Wdeprecated]
   void rawsetfield(int index, const char *k) throw(std::bad_alloc);                                        
                                              ^~~~~   
/home/henry/software/conky/src/luamm.hh:279:39: warning: dynamic exception specifications are deprecated in C++11 [-Wdeprecated]
   void loadfile(const char *filename) throw(lua::syntax_error, lua::file_error, std::bad_alloc);           
                                       ^~~~~          
/home/henry/software/conky/src/luamm.hh:280:34: warning: dynamic exception specifications are deprecated in C++11 [-Wdeprecated]
   void loadstring(const char *s) throw(lua::syntax_error, std::bad_alloc);                                 
                                  ^~~~~               
/home/henry/software/conky/src/luamm.hh:283:44: error: ‘cpp_function’ does not name a type; did you mean ‘lua_KFunction’?
   void register_fn(const char *name, const cpp_function &f) { pushfunction(f); setglobal(name); }          
                                            ^~~~~~~~~~~~                                                    
                                            lua_KFunction                                                   
/home/henry/software/conky/src/luamm.hh:289:35: warning: dynamic exception specifications are deprecated in C++11 [-Wdeprecated]
   std::string tostring(int index) throw(lua::not_string_error);                                            
                                   ^~~~~              
make[2]: *** [src/CMakeFiles/conky.dir/build.make:87: src/CMakeFiles/conky.dir/colours.cc.o] Error 1        
make[1]: *** [CMakeFiles/Makefile2:218: src/CMakeFiles/conky.dir/all] Error 2                               
make: *** [Makefile:152: all] Error 2   

Thanks.

[nioncode]

Any update on this?

I'm having the same issue on nixos, but I can successfully compile on Arch Linux.
Both use g++ 7.3.0.

[brndnmtthws]

This was fixed with #402.