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| A new way how to create "plugin" [message #6588] |
Sun, 19 November 2006 18:38 |
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mirek
Messages: 13975
Registered: November 2005
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Ultimate Member |
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While solving a problem with linux having png.so library, I have found an interesting way how to integrate external libraries into U++ ("plugin").
Instead of putting everything into the package, I have created "pnglib.c" file with
#include "lib/png.c"
#include "lib/pngerror.c"
#include "lib/pnggccrd.c"
#include "lib/pngget.c"
#include "lib/pngmem.c"
#include "lib/pngpread.c"
#include "lib/pngread.c"
#include "lib/pngrio.c"
#include "lib/pngrtran.c"
#include "lib/pngrutil.c"
#include "lib/pngset.c"
#include "lib/pngtrans.c"
#include "lib/pngvcrd.c"
#include "lib/pngwio.c"
#include "lib/pngwrite.c"
#include "lib/pngwtran.c"
#include "lib/pngwutil.c"
There are two advantages - it will get compiled faster (actually this is sort of BLITZ - normally BLITZ is not active for C files).
Another advantage is that I can #ifdef this chunk - which I need at the moment to supress inclusion of sources in Linux (to link .so).
Disadvantage is that all headers included by these library files must have include-once-guards, so this is not applicable in all cases...
Mirek
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