Total n00b gcc question

[flexion]

I just don't get it.. I've now tried to compile a really simple "Hello World" using GCC, but I'm not even able to compile this noob example..

$ gcc test.c -o hello
as ERROR parsing -mabi=n32:  unknown flag

by passing a non existent option, I get a list of valid options for -mabi:

$ gcc -mabi=iloveyoutoo test.c -o hello
gcc: error: unrecognized argument in option '-mabi=iloveyoutoo'
gcc: note: valid arguments to '-mabi=' are: 32 64 eabi n32 o64

but none of those options work, always the same result: "unknown flag"

$ gcc -mabi=64 test.c -o hello
as ERROR parsing -mabi=64:  unknown flag

$ gcc --version
gcc (GCC) 9.2.0 20190812 (sgugver-0.2.0-mips3-ng)
Copyright (C) 2019 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.

If I try the same with cc instead of gcc, I get the usual long disclaimer about "contact SGI to obtain license", followed by missing "fec" (due to missing development CD installation.. which AFAIK requires a license in LicenseManager)

$ cc test.c -o hello
No such feature exists (-5,116:2) No such file or directory

 The MIPSpro C Compiler 
 (license FEATURE string = cc) 
 requires a license password. 
...... etc etc ....
cc ERROR:  cannot exec /usr/lib32/cmplrs/fec

Contents of test.c:

#include <stdio.h>
int main() {
   printf("Hello, cruel world!");
   return 0;
}

I thought I should be at least able to compile a simple "hello world" which does not require lots of dependencies using gcc? What am I doing wrong?

 

[mgtremaine]

Try that again in the sgugshell (I just did and your code compiled fine)

[sgugshell mgt@saiph ~]$ ./a.out
Hello, cruel world![sgugshell mgt@saiph ~]$

Obviously something about the ABI flag is wrong in the normal login env but the sgugshell seems to fix it. (Not a compiler guy so we can wait for a better answer also)

-Mike

 

[flexion]

Oh wow! Thanks Mike! I tried in sgugshell too and it indeed works there!!
now I can continue my compile experiment!

 

[flexion]

aahhh what a pleasure.. the configure script now finally continues past that step where it used to stop!!

 

[flexion]

and finally it compiles.. and compiles..

just wondering.. is the idea of sgugshell to be a full replacement for the default shell? should I change my default shell in /etc/passwd from tcsh to sgugshell?
I had the impression this shell is just for SGUG-RSE related tasks and maintenance..

 

[Elf]

sgugshell is basically just environment setup; you can incorporate it into your own environment as you wish

See: https://github.com/sgidevnet/sgug-rse/blob/master/packages/sgugshell/SOURCES/sgugshell

 

[flexion]

sgugshell is basically just environment setup; you can incorporate it into your own environment as you wish

Ah OK, thanks for the clarification!