build error

[Ajay-2017]

I am trying to build on a mac and found Cmake complain

meGrabber.cpp:37:10: fatal error:
'png.h' file not found
#include <png.h>

even though pnglib is installed.

bench-mr ajayp$ ls /usr/local/include/png.h
/usr/local/include/png.h

Hence I added, usr/local/include to CMakeLists.txt
include_directories(/usr/local/include)

But now I am getting lot of errors while building,

bench-MR/bench-mr/third_party/params/include/params.hpp:124:23: error:
use 'template' keyword to treat 'get' as a dependent template name
value_ = j[name_].get();
^
template
bench-MR/bench-mr/third_party/params/include/params.hpp:117:16: error:
'serialize' overrides a member function but is not marked 'override'
[-Werror,-Winconsistent-missing-override]
virtual void serialize(std::ostream &stream) const {
^

any ideas?

[roym899]

I can't reproduce this problem (but I also don't have access to a mac). Where does meGrabber.cpp come from?