Hello,

Just tried to build disko (1.6 and git) against libpng 1.4.0

src/mmstools/mmstafffile.cpp: In member function 'bool MMSTaffFile::readPNG(const char*, void**, int*, int*, int*, int*)':
src/mmstools/mmstafffile.cpp:124: error: 'png_check_sig' was not declared in this scope
src/mmstools/mmstafffile.cpp:137: warning: 'png_struct_def::jmpbuf' is deprecated (declared at /usr/include/libpng14/png.h:1082)
src/mmstools/mmstafffile.cpp:137: warning: 'png_struct_def::jmpbuf' is deprecated (declared at /usr/include/libpng14/png.h:1082)
scons: *** [build/libs/mmstools/mmstafffile.os] Error 1
scons: building terminated because of errors.

for details see: http://www.libpng.org/pub/png/src/libpng-1.2.x-to-1.4.x-summary.txt

Hi archme,

i found out, that the libpng changed the API:
http://www.libpng.org/pub/png/src/libpng-1.2.x-to-1.4.x-summary.txt
----
replace
png_check_sig(buf, 8)
with
png_sig_cmp(buf, 0, 8) == 0
----

We try to solve the problem. In the meantime you should compile against an older version of libpng

regards

Guido

Hello archme,

I committed the fix for libpng 1.4.x support.
Thanks for the report.

Best regards,
Matthias