[M3devel] gcc error on PPC_DARWIN

[Jay K]

I kind of throw in that everywhere until/unless shown that it hurts and isn't needed.
Indeed it doesn't always work, not always on gcc, not always on cm3cg.
 
 
I have this probe in Darwin.common now, since I was using an AMD64_DARWIN machine the other day:
 
 
if not defined("SYSTEM_CC")
not this part
    if equal(WORD_SIZE, "32BITS")
        SYSTEM_CC = "32"
    else
        SYSTEM_CC = "64"
    end
%
% fPIC is not usually needed here.
% It is the default for Apple gcc and left
% here in case user is using a self-built FSF gcc.
%
    SYSTEM_CC = "gcc -fPIC -m" & SYSTEM_CC
    local a = SYSTEM_CC & " -arch " & GccArch
this part, with -arch or not 
    local b = try_exec("@" & a & " -v 2>/dev/null")
    if equal(b, 0)
        SYSTEM_CC = a
    end
    %write("SYSTEM_CC is " & SYSTEM_CC & "\n")
end
if not defined("SYSTEM_LIBTOOL")
    readonly SYSTEM_LIBTOOL = "libtool"
end

 
which should be redundant with the -m32/64 stuff, so try just:
 
 
if not defined("SYSTEM_CC")
%
% fPIC is not usually needed here.
% It is the default for Apple gcc and left
% here in case user is using a self-built FSF gcc.
%
    SYSTEM_CC = "gcc -fPIC"
    local a = SYSTEM_CC & " -arch " & GccArch
    local b = try_exec("@" & a & " -v 2>/dev/null")
    if equal(b, 0)
        SYSTEM_CC = a
    end
    %write("SYSTEM_CC is " & SYSTEM_CC & "\n")
end
if not defined("SYSTEM_LIBTOOL")
    readonly SYSTEM_LIBTOOL = "libtool"
end

I know this kind of probing is inefficient -- we do it every invocation of cm3.
  We could at least limit it to if there is a need to compile C or link -- like how GetM3BackFlags works now (sort of -- not probe related, but just related to bootstrapping or not).
The alternative is to let users edit or have cminstall do the probe -- and have it go stale when the tools change..
 
 - Jay




----------------------------------------
> Date: Mon, 27 Jul 2009 00:22:58 +0200
> From: wagner at elegosoft.com
> To: m3devel at elegosoft.com
> Subject: [M3devel] gcc error on PPC_DARWIN
>
> compiler bootstrap on PPC_DARWIN failed with `invalid option 32':
> http://hudson.modula3.com:8080/job/cm3-release-build-PPC_DARWIN/3/console
>
> Do we really require 64-bit capable tools now on all systems?
> Or did I make some stupid error again?
>
> Olaf
> --
> Olaf Wagner -- elego Software Solutions GmbH
> Gustav-Meyer-Allee 25 / Gebäude 12, 13355 Berlin, Germany
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>