Re: how to make msys+mingw support math and stdlib libraries of c++?

[明覺 <shi minjue gmail com>]

On Sun, May 24, 2009 at 4:29 PM, Robert Pearce <rob bdt-home demon co uk> wrote:
> On Sun, 24 May 2009 15:22:08 +0800
> 明覺 <shi minjue gmail com> wrote:
>
>> I have successfully built the environment for gtkglextmm, using
>> mingw+msys, and now I'm ready to build my own application by it, but
>> it seems that there is no math and stdlib library support yet, here is
>> the error of my compile:
>> -----------------------------
>> $ g++  -mwindows -mms-bitfields -mno-cygwin -g `pkg-config --cflags gtkmm-2.4
>> gtkglextmm-1.2` main.cc Surface.cc  `pkg-config --libs gtkmm-2.4 gtkglextmm-1.
>> 2` -lGL -lGLU -lm
>> Surface.cc: In member function `double Surface::Ypo(double, double, double)':
>> Surface.cc:47: error: `cos' was not declared in this scope
>> Surface.cc:47: error: `sin' was not declared in this scope
>> Surface.cc: In member function `void Surface::SetPoints()':
>> Surface.cc:63: error: `free' was not declared in this scope
>> Surface.cc:63: error: `malloc' was not declared in this scope
>> ------------------------------
>> any advice to solve it? thanks
>
> Most likely Surface.cc fails to #include the relevant headers (math.h
> and stdlib.h). This may work in some environments if one of the headers
> it does include uses them indirectly, but different versions of GTKmm or
> other may expose your bug.

yes, you are right, I made some low-level mistake.

this thread should be totally ignored.

sorry

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