Built error Ubuntu 16.04 and latest v1.x (173d065)

[atasoglou]

Using the default built commands and latest commit 173d065 for v1.x

Gcc: 5.4.0

$ git clone https://github.com/gabime/spdlog.git
$ cd spdlog && mkdir build && cd build
$ cmake .. && make -j

I am getting the following error on the example:

make -j
[ 10%] Building CXX object CMakeFiles/spdlog.dir/src/fmt.cpp.o
[ 20%] Building CXX object CMakeFiles/spdlog.dir/src/file_sinks.cpp.o
[ 30%] Building CXX object CMakeFiles/spdlog.dir/src/async.cpp.o
[ 40%] Building CXX object CMakeFiles/spdlog.dir/src/spdlog.cpp.o
[ 50%] Building CXX object CMakeFiles/spdlog.dir/src/color_sinks.cpp.o
[ 60%] Building CXX object CMakeFiles/spdlog.dir/src/stdout_sinks.cpp.o
[ 70%] Building CXX object CMakeFiles/spdlog.dir/src/cfg.cpp.o
[ 80%] Linking CXX static library libspdlog.a
[ 80%] Built target spdlog
[ 90%] Building CXX object example/CMakeFiles/example.dir/example.cpp.o
/home/tanasaki/spdlog/example/example.cpp:267:17: error: specialization of ‘template<class T, class Char, class Enable> struct fmt::v8::formatter’ in different namespace [-fpermissive]
 struct fmt_lib::formatter<my_type> : fmt_lib::formatter<std::string>
                 ^
In file included from /home/tanasaki/spdlog/include/spdlog/fmt/fmt.h:24:0,
                 from /home/tanasaki/spdlog/include/spdlog/common.h:45,
                 from /home/tanasaki/spdlog/include/spdlog/spdlog.h:12,
                 from /home/tanasaki/spdlog/example/example.cpp:29:
/home/tanasaki/spdlog/include/spdlog/fmt/bundled/core.h:707:8: error:   from definition of ‘template<class T, class Char, class Enable> struct fmt::v8::formatter’ [-fpermissive]
 struct formatter {
        ^
example/CMakeFiles/example.dir/build.make:75: recipe for target 'example/CMakeFiles/example.dir/example.cpp.o' failed
make[2]: *** [example/CMakeFiles/example.dir/example.cpp.o] Error 1
CMakeFiles/Makefile2:125: recipe for target 'example/CMakeFiles/example.dir/all' failed
make[1]: *** [example/CMakeFiles/example.dir/all] Error 2
Makefile:155: recipe for target 'all' failed
make: *** [all] Error 2

[tt4g]

Duplicate #2333