Build issues on Cygwin + GCC (WITHOUT mingw)

[Ratstail91]

Hi, I downloaded the source for the latest stable release, and these didn't work, like they normally should.

external/download.sh
mkdir build
cd build
../configure
make
make install

Instead, I had to go into the generated makefile, and change the following lines to this:

CFLAGS = -g -O2 -I/usr/include/SDL2 -DSDL_MAIN_HANDLED -Wall
LIBS = -lSDL2

I've yet to test if this installed properly, though the console says everything is ok with the install...

Oh, and it seemed like the external format files weren't discovered for some reason, IDK why.