Error during compile.

[royord]

I get the following errors on compile, though they do go away if I keep running the compile...

/Users/.../Documents/Arduino/libraries/BigNumber/number.c: In function 'bc_str2num':
/Users/.../Documents/Arduino/libraries/BigNumber/number.c:1523:7: warning: assignment discards 'const' qualifier from pointer target type
ptr = str;
^
/Users/.../Documents/Arduino/libraries/BigNumber/number.c:1548:7: warning: assignment discards 'const' qualifier from pointer target type
ptr = str;
^

[nickgammon]

I don't get any warnings under IDE 1.6.9, even with warnings set to "all".

warning: assignment discards 'const' qualifier from pointer target type

That's a warning, not an error. Since it is a warning, if you compile again that source file won't be compiled a second time, and you don't see the message a second time.