How to compile using gcc but without using _alloca ?
- by shkim
For some reason, I should use gcc to compile a C file, then link against Visual C++ 2008 project.
(I used the current latest gcc version: cygwin gcc 4.3.4 20090804.)
But there is one problem: gcc always allocate a big array with _alloca,
and VC linker can't resolve the symbol __alloca.
for example,
int func()
{
int big[10240];
....
}
this code makes the _alloca dependency although I didn't call the _alloca function explicitly.
(array size matters. if i change 10240 - 128, everything ok)
I tried gcc option -fno-builtin-alloca or -fno-builtin, but no luck.
Is it possible to make gcc not to use _alloca ? (or adjust the threshold?)
