Error by building an Qt based project about tinytoml

[mayah]

Windows platform? Maybe Windows does not have timegm.
According to http://stackoverflow.com/questions/16647819/timegm-cross-platform, _mkgmtime will work.

Try
#define timegm _mkgmtime

Works fine with the define directive, thanks!

Sorry that I reopen but that gives me an new error, I don't know if this is based on the compiler (cause of linking) or on the header. I wrote simply this, to check if my files are valid:

/* at least lets check if the TOML based files are all valid */
            std::ifstream r_ifs(_r_file.toStdString().c_str());
            toml::Parser r_parser(r_ifs);
            toml::Value r_val = r_parser.parse();
            if (r_val.valid())
            {
                /* everything is fine */
                printf("root file is valid TOML\n");
            }

This gives me

debug/project.o: In function `ZN4toml6Parser9parseTimeERKSsPNS_5ValueE':
c:\arden/src/core/../../externals/tinytoml/toml.h:830: undefined reference to `_mkgmtime'

[mayah]

Since it's a link error, the code itself should be ok.

You're using mingw 32bit version? I found this one.
http://sourceforge.net/p/mingw-w64/bugs/473/
If this is true, It's mingw bug, I believe. You can follow this article to fix.

Or, try another approach.
Try to add timegm which is also mentioned in
http://stackoverflow.com/questions/16647819/timegm-cross-platform
by yourself? I didn't check it, but the writer says it works on Windows. I'm not sure it also works on mingw environment.

time_t timegm(struct tm * a_tm)
{
time_t ltime = mktime(a_tm);
struct tm tm_val;
gmtime_s(&tm_val, &ltime);
int offset = (tm_val.tm_hour - a_tm->tm_hour);
if (offset > 12)
{
offset = 24 - offset;
}
time_t utc = mktime(a_tm) - offset * 3600;
return utc;
}

Yep using MinGW 32-bit but the version which was installed when installing Qt, so rebuilding would not work.

[mayah]

Then, try to define timegm() by yourself. Doesn't it work?

[mayah]

No update, closing.