Failed to build GCC part 1 (stage: gcc_build)

[markcoker]

I believe it is due to the following errors.

../../gcc-4.1.1/gcc/toplev.c:524:1: error: redefinition of a 'extern inline'
function 'floor_log2' is not supported in C99 mode
floor_log2 (unsigned HOST_WIDE_INT x)
../../gcc-4.1.1/gcc/toplev.c:559:1: error: redefinition of a 'extern inline'
function 'exact_log2' is not supported in C99 mode
exact_log2 (unsigned HOST_WIDE_INT x)

[nickpack]

@markcoker Which OS are you building this on? Note that the project has been dead for years now - if this is a simple fix I'll have a look at it, but if its anything more significant its unlikely to be resolved.

[markcoker]

No worries, thanks for your time. Im building it on macOS 10.12 ... I haven't tested it on linux yet (to be honest, I just used binaries gcc arm binaries, so this is more informal).

[Nick73]

Same issue here on Ubuntu 16.04. I'd love to build Android for my iPod but this is the only thing stopping me

[nickpack]

Had a brief look at this, and basically looks as if your system compiler toolchains are too new - https://gcc.gnu.org/ml/gcc-patches/2007-02/msg00119.html

I'll have to look into it a bit more, though I strongly suspect you're going to need to install older versions of gcc in order to be able to build this (Its highly unlikely that a patch to the code the toolchain script builds will ever surface)

[markcoker]

Thanks for that information, what version is needed do you know 4.0?

[Nick73]

I believe 4.1.1

[Nick73]

../../gcc-4.1.1/gcc/toplev.c: At top level:
../../gcc-4.1.1/gcc/toplev.c:524:1: error: redefinition of ‘floor_log2’
 floor_log2 (unsigned HOST_WIDE_INT x)

../../gcc-4.1.1/gcc/toplev.c:559:1: error: redefinition of ‘exact_log2’
 exact_log2 (unsigned HOST_WIDE_INT x)

Which leaves this output:

Makefile:2060: recipe for target 'toplev.o' failed
make[1]: *** [toplev.o] Error 1
make[1]: *** Waiting for unfinished jobs....
make[1]: Leaving directory '/home/nick/Desktop/toolchain/gcc-build/gcc'
Makefile:3905: recipe for target 'all-gcc' failed
make: *** [all-gcc] Error 2

Ubuntu 16.04

[ghost]

Hey everyone, sorry for awaking this thread again...

However, I had the exact same issue, pain in the fucking ass.

I tried on a Ubuntu 12.04 VM, and it worked fine. No errors (except newlib, but that can be ignored).

[speck1234]

Did you run the VM in Ubuntu itself, Mac OS or WIndows?