Compilation error gdal 2.1 trunk with gcc 5.1

[manuelgrizonnet]

I've got a compilation error with gdal 2.1 trunk (revision 31183) with gcc (GCC) 5.1.1 20150618 (Red Hat 5.1.1-4) on Fedora 22:

pngdataset.cpp:1373:47: error: reinterpret_cast from type 'const char*' to type 'GByte* {aka unsigned char*}' casts away qualifiers

if( reinterpret_cast<GByte *>( pszStr )[i] >= 128 )

It seems that a "const-cast" is missing somewhere.

I don't use any specific compiler options ("./configure;make"). It sounds weird that this error does not pop up for other people (with other compilers) so perhaps something wrong on my side but I can't find it.

[Kurt Schwehr]

Thanks for the bug report! Indeed, that does look like I should have added a const_cast. Working on it now.

[Kurt Schwehr]

Should be fixed by r31192.