On Tue, May 02, 2000 at 11:10:32PM +0100, Gary V. Vaughan wrote:
> On Sat, Apr 22, 2000 at 09:53:42AM -0500, Bob Friesenhahn wrote:
> > The IRIX C/C++ compiler accepts aguments of the form "-LANG:std".
> > Options of this form must be specified in order to compile and link
> > C++ code, and possibly strict ANSI code. Unfortunately, libtool
> > parses these options as being linker path options and does not supply
> > them properly to the compiler and linker.
>
> This is a known problem with a workaround: when building the libtool
> compile line, you should use -Wc,-LANG:std
I don't think it is so simple. The comments below pertain only to IRIX
C++ 7.3.1.1m. This compiler des not understand -Wc. From the man page
CC(1) it only understands the following arguments:
-W c,arg1[,arg2...]
Passes the argument(s) argi to the compiler pass c where c is
one of [pKMfbal]. The c selects the compiler pass according
to the following table:
Name (-n32 or -64) Character
preprocessor p
pca K (Automatic Parallelization
Option Only; O32 ABI only)
mpc
fec f (See below)
be b
asm a
ld l
Sets of these phase names can be used to select any
combination of phases. For example, -Wba,-o,foo passes the
option -o foo to the b and a phases.
The 7.3 compilers from SGI are more standards compliant than the 7.2
compilers. This compliance is enabled with "-LANG:std". This option
must be used when compiling and linking. So the following C++ program
will not compile under 7.3 without the -LANG:std switch:
#include <iostream>
int
main (void) {
std::cout << "Hello\n";
return (1);
}
% CC std.cc
cc-1035 CC: WARNING File = /usr/include/CC/iosfwd, Line = 18
#error directive: This header file requires the -LANG:std option
#error This header file requires the -LANG:std option
^
So we use the -LANG:std option:
% CC -LANG:std std.cc
And everything works. Now, to satisfy libtool, we cannot use -LANG:std
because it eats it (this is the "multi-language-branch" of libtool).
So, we try to work around it with your solution above:
% CC -Wf,-LANG:std std.cc
--- C++ prelinker: std.o ---
/usr/bin/CC -c -DEFAULT:abi=n32:isa=mips3 -Wf,-LANG:std -n32 std.cc
--- C++ prelinker: std.o ---
/usr/bin/CC -DEFAULT:abi=n32:isa=mips3 -c -DEFAULT:abi=n32:isa=mips3
-Wf,-LANG:std -n32 std.cc
ld32: ERROR 33 : Unresolved text symbol
"std::ios_base::_S_initialize(void)" -- 1st referenced by std.o.
Use linker option -v to see when and which objects, archives
and dsos are loaded.
ld32: ERROR 33 : Unresolved text symbol
"std::ios_base::_S_uninitialize(void)" -- 1st referenced by std.o.
Use linker option -v to see when and which objects, archives
and dsos are loaded.
...
So, that doesn't work. As -W[x] options can be combined, we use them
all in the hopes that one of them must work:
% CC -WpKfbal,-LANG:std std.cc
ld32: ERROR 33 : Unresolved text symbol
"std::ios_base::_S_initialize(void)" -- 1st referenced by std.o.
Use linker option -v to see when and which objects, archives
and dsos are loaded.
...
So, I do not think it is possible to coerce the IRIX C++ compiler to
work without patching libtool to understand -LANG:.
--
albert chin ([EMAIL PROTECTED])
