icecc calling itself recursively when using gcc-<version_number>

[Josh Bialkowski]

I probably dont have icecc configured correctly but the behavior seems inconsistent depending on if i compile with 'arm-linux-gnueabihf-gcc' or 'arm-linux-gnueabihf-gcc-4.9'. 

I have created symlinks in /usr/local/icecream:

@jetson1:~$ ls -l /usr/local/icecream

total 29384

lrwxrwxrwx 1 root root       14 Aug  4 18:06 arm-linux-gnueabihf-g++ -> /usr/bin/icecc

lrwxrwxrwx 1 root root       14 Aug  7 16:09 arm-linux-gnueabihf-g++-4.9 -> /usr/bin/icecc

lrwxrwxrwx 1 root root       14 Aug  4 18:06 arm-linux-gnueabihf-gcc -> /usr/bin/icecc

lrwxrwxrwx 1 root root       14 Aug  7 16:10 arm-linux-gnueabihf-gcc-4.9 -> /usr/bin/icecc

lrwxrwxrwx 1 root root       14 Aug  4 16:51 g++ -> /usr/bin/icecc

lrwxrwxrwx 1 root root       14 Aug  4 16:51 gcc -> /usr/bin/icecc

And I have this on the path:

@jetson1:~$ echo $PATH

/usr/local/icecream:/usr/local/cuda/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin

But the behavior is different depending on how I call the compiler: 

@jetson1:~$ /usr/local/icecream/gcc --version

gcc (Ubuntu/Linaro 4.9.2-0ubuntu1~14.04) 4.9.2

Copyright (C) 2014 Free Software Foundation, Inc.

This is free software; see the source for copying conditions.  There is NO

warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

@jetson1:~$ /usr/local/icecream/arm-linux-gnueabihf-gcc --version

arm-linux-gnueabihf-gcc (Ubuntu/Linaro 4.9.2-0ubuntu1~14.04) 4.9.2

Copyright (C) 2014 Free Software Foundation, Inc.

This is free software; see the source for copying conditions.  There is NO

warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

@jetson1:~$ /usr/local/icecream/arm-linux-gnueabihf-gcc-4.9 --version

ICECC[28899] 16:51:11: icecream seems to have invoked itself recursively!

I've verified that arm-linux-gnueabihf-gcc-4.9 is in /usr/bin so is on the path after /usr/local/icecream:

@jetson1:~$ ls -l /usr/bin | grep gcc-4.9

lrwxrwxrwx 1 root root           7 Apr  7  2014 arm-linux-gnueabihf-gcc -> gcc-4.9

lrwxrwxrwx 1 root root           7 Nov  4  2014 arm-linux-gnueabihf-gcc-4.9 -> gcc-4.9

-rwxr-xr-x 1 root root      552736 Nov  4  2014 gcc-4.9

The system is ubuntu14.04 with icc version 1.0.1 (this is on an intel jetson dev board). 

Does anyone know if this is expected behavior, or the details of how icecc figures out the 'real' compiler? 

The issue does not seem to be present if I call simply 'arm-linux-gnueabihf-gcc-4.9' from the shell:

@jetson1:~$ which arm-linux-gnueabihf-gcc-4.9

/usr/local/icecream/arm-linux-gnueabihf-gcc-4.9

@jetson1:~$ arm-linux-gnueabihf-gcc-4.9 --version

arm-linux-gnueabihf-gcc-4.9 (Ubuntu/Linaro 4.9.2-0ubuntu1~14.04) 4.9.2

Copyright (C) 2014 Free Software Foundation, Inc.

This is free software; see the source for copying conditions.  There is NO

warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

@jetson1:~$ $(which arm-linux-gnueabihf-gcc-4.9) --version

ICECC[28912] 16:54:38: icecream seems to have invoked itself recursively!

This is causing some issues in a cmake based project because it seems that cmake tries to use the full path of the compiler. If I specify 'CC=arm-linux-gnueabihf-gcc-4.9 cmake ... ' then what shows up in CMakeCache.txt is '/usr/local/icecream/arm-linux-gnueabihf-gcc-4.9'.