What is this GCC error on Linux, and how do I solve it? gcc: internal compiler error: Illegal instruction (program as)

Question

I type gcc hello.c and this appears:

gcc: internal compiler error: Illegal instruction (program as)
Please submit a full bug report,
with preproc         


        

Answer 1

Found on raspberryPi forums:

Grabbed the sources and tried a cross-compile on an x86-64 box for a generic arm target. Something inside filter/hq2x.cpp is causing GCC to go nuts and consume memory & swap, so I wouldn't be at all surprised if it triggers a fatal error on a Pi. Some sources suggest that it is the compiler's (cc1plus) internal stack overflowing.

One possible fix is to run the configure script with --enable-debug - This should reduce optimization to a minimum and avoid stack overflows at the expense of increased binary size.

So you can try to set compiler flags to

-O0 -g

and check whether it helps.