🚀 go-pugleaf

In article <4iodhi$8al@romeo.logica.co.uk> jjk@lbvrtda.logica.com (JJ Keijser)
writes:

| In article <4in99a$6km@aiscube.ais-gmbh.de>,
|    arndt@aiscube.ais-gmbh.de (Arndt Schoenewald) wrote:
| >We have a small IBM workstation running AIX 4.1; the script `config.guess'
| >which comes with gcc calls it a "powerpc-ibm-aix4.1.4.0".  On this machine
| >we have gcc version 2.7.2 and it works very well; however, the executables
| >produced by it dump core (illegal instruction) a when run on other AIX
| >machines.
| >
| >I assume that gcc generates code using instructions that are specific to
| >the PowerPC, and the compiler switch `-mcpu=common' should probably be
| >used to remedy this.  However, since it is easy to forget this switch
| >(e.g. when compiling small programs without a makefile), I would prefer
| >to install gcc so that it generates common code by default.
| 
| the gcc config program causes gcc to compile code for the platform on which it
| is running. Check the docs on how to setup cross-compile options. It *might* 
| be the case that you're using instructions that the other boxes can't handle; 

I didn't see the original post at my site.  Gcc 2.8 whenever it comes out will
default to -mcpu=common for AIX 4.1.  In the meantime, you can:

   1)	mv the gcc cover program to something like gcc.real, and then write
	a shell script called gcc that invokes gcc.real, adding -mcpu=common.

   2)	Edit config/rs6000/aix41.h, and add:

		#undef TARGET_DEFAULT
		#define TARGET_DEFAULT 0

	and rebuild gcc (make sure that toplev.o gets rebuilt).
-- 
Michael Meissner, Cygnus Support (East Coast)
Suite 105, 48 Grove Street, Somerville, MA 02144, USA
meissner@cygnus.com,	617-629-3016 (office),	617-629-3010 (fax)