Re: [GXemul-users] Issues Compiling

[Anders G. <ga...@gm...>]

This seems to have to do with redefinition of __attribute__ that happens in
some of the .h files, and if the Linux system headers are included after
that, things fail.

Short-term workaround 1:

Use the --debug argument to the configure script. This turns off
optimizations, but seems to allow the linking stage to pass.

Short-term workaround 2:

Comment out the following lines in src/include/thirdparty/sgi_arcbios.h and
pcireg.h:

#define __attribute__(x)  /*  */
#define __noreturn__  /*  */

before running configure && make.

(In trunk, the attribute and noreturn undef/refinitions have been removed
for now.)


Anders

On Tue, Apr 27, 2021 at 3:52 PM Michael F. <mf...@gm...> wrote:

> As the title says I'm having trouble compiling the latest source. Before
> it's able to finish linking I get the following error:
>
>
> c -fstrict-aliasing -fomit-frame-pointer -fpeephole -O3 -DNDEBUG
>  src/console/*.o src/cpus/*.o src/debugger/*.o src/devices/*.o src/disk/*.o
> src/file/*.o src/machines/*.o src/net/*.o src/core/*.o src/promemul/*.o
> src/symbol/*.o -L/usr/X11R6/lib -lX11 -Wl,-rpath,/usr/X11R6/lib -lm  -o
> gxemul
> /usr/bin/ld: src/devices/dev_sgi_mec.o: in function `__cmsg_nxthdr':
> dev_sgi_mec.c:(.text+0x11d0): multiple definition of `__cmsg_nxthdr';
> src/devices/dev_sgi_ip32.o:dev_sgi_ip32.c:(.text+0xdc0): first defined here
> /usr/bin/ld: src/machines/machine_sgi.o: in function `__cmsg_nxthdr':
> machine_sgi.c:(.text+0x9f0): multiple definition of `__cmsg_nxthdr';
> src/devices/dev_sgi_ip32.o:dev_sgi_ip32.c:(.text+0xdc0): first defined here
> /usr/bin/ld: src/core/emul.o: in function `__cmsg_nxthdr':
> emul.c:(.text+0x10): multiple definition of `__cmsg_nxthdr';
> src/devices/dev_sgi_ip32.o:dev_sgi_ip32.c:(.text+0xdc0): first defined here
> collect2: error: ld returned 1 exit status
> make: *** [Makefile:31: build] Error 1
>
> This happens with the snapshot, the 0.7.0 tar.gz archive on the website
> and svn.
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