FLTK make include with MinGW help

[tabstop]

I take it this is cygwin? In any event, these lines:

configure:2391: gcc    conftest.c  >&5
configure:2394: $? = 1

tell you that the command "gcc conftest.c" failed. Are you able to run gcc from the command line? If you use that particular conftest.c, do you have any problems?

[Shingetsu Kurai]

I use gcc (with Msys) regularly, although not from the command line.
I have no idea if I use confest.c though, it may be the problem then.