[rrd-developers] Compile rrdtool-1.4.8 in Visual Studio 2013

[Peter]

Hi,

I compiled successfully rrdtool-1.4.8 with Visual Studio 2013 after solving
the following 3 issues. At first pay attention to WIN32-BUILD-TIPS.txt and
load / copy  all libraries.
There are 3 issues left:
1. ==============
use a folder without spaces!
Otherwise later come an post build event error:

Error     20     error MSB3073: The command "copy
c:\Users\Peter\Documents\Visual Studio
2013\rrdtool-1.4.8\win32\\..\contrib\bin\freetype6.dll
c:\Users\Peter\Documents\Visual Studio 2013\rrdtool-1.4.8\win32\Debug\\ ...

2. ====================
Error     2     error C2556: 'int round(double)' : overloaded function
differs only by return type from 'double round(double)'    

Problem:
in math.h is defined
_CRTIMP double __cdecl round(_In_ double _X);


Solution:
comment out:
//__inline int round(double a ){int x = (a + 0.5); return x;}

possible slower as  inline, but in c++ is not allowed overloaded function
differs only by return.. Is there a faster solution?

3. =======================
Error     14     error C1189: #error :  "Don't know how to deal with TIME_T
other than 4 or 8 bytes"     c:\Users\Peter\Documents\Visual Studio
2013\rrdtool-1.4.8\src\rrd_restore.c     235     1     rrdlib

solution from answer
http://stackoverflow.com/questions/16962257/failing-to-compile-rrd
in rrd_restore.c
replace
        #if SIZEOF_TIME_T == 4
                     temp = strtol(( char *)text,NULL, 0);
        #elif SIZEOF_TIME_T == 8
                     temp = strtoll(( char *)text,NULL, 0);       
        #else
        #error "Don't know how to deal with TIME_T other than 4 or 8 bytes"
        #endif  
by 
#ifndef WIN32
        #if SIZEOF_TIME_T == 4
                     temp = strtol(( char *)text,NULL, 0);
        #elif SIZEOF_TIME_T == 8
                     temp = strtoll(( char *)text,NULL, 0);       
        #else
        #error "Don't know how to deal with TIME_T other than 4 or 8 bytes"
        #endif  
#else
                     temp = strtoll(( char *)text, NULL, 0);
#endif

in  rrd_create.c:
replace
#include "../rrd_config.h"
by

#ifndef WIN32
#include "../rrd_config.h"
#endif

After this changes I can compile it without errors and 110 warnigs.

Peter





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