Nightly, I was building an sgimips release snapshot and CDROM image.
As of March 26, when drochner submitted changes to the file, it no longer builds
due to __sigreturn14.S using a different macro for assembler macro expansion.

#   compile  libc/__sigreturn14.o
/sim/sgimips/obj/tooldir.NetBSD-1.6ZK-alpha/bin/mipseb--netbsd-gcc   -D_LIBC -DLIBC_SCCS -DSYSLIBC_SCCS -D_REENTRANT -I/usr/src/lib/libc/include -DHESIOD -DINET6 -DNLS -DYP -D__DBINTERFACE_PRIVATE -DI18NMODULE_MAJOR=4 -I/usr/src/libexec/ld.elf_so -I/usr/src/lib/libc/dlfcn -DCITRUS_ICONV -DWITH_RUNE -I/usr/src/lib/libc -DRESOLVSORT -I. -DPOSIX_MISTAKE -DPORTMAP -DFLOATING_POINT   -nostdinc -isystem /sim/sgimips/dest/usr/include -c -traditional-cpp  -DALL_STATE -DUSG_COMPAT  -I/usr/src/lib/libc/arch/mips -nostdinc -idirafter /sim/sgimips/dest/usr/include /usr/src/lib/libc/arch/mips/sys/__sigreturn14.S -o __sigreturn14.o.tmp
/usr/src/lib/libc/arch/mips/sys/__sigreturn14.S: Assembler messages:
/usr/src/lib/libc/arch/mips/sys/__sigreturn14.S:46: Error: absolute expression required `li'

*** Failed target:  __sigreturn14.o
*** Failed command: /sim/sgimips/obj/tooldir.NetBSD-1.6ZK-alpha/bin/mipseb--netbsd-gcc -D_LIBC -DLIBC_SCCS -DSYSLIBC_SCCS -D_REENTRANT -I/usr/src/lib/libc/include -DHESIOD -DINET6 -DNLS -DYP -D__DBINTERFACE_PRIVATE -DI18NMODULE_MAJOR=4 -I/usr/src/libexec/ld.elf_so -I/usr/src/lib/libc/dlfcn -DCITRUS_ICONV -DWITH_RUNE -I/usr/src/lib/libc -DRESOLVSORT -I. -DPOSIX_MISTAKE -DPORTMAP -DFLOATING_POINT -nostdinc -isystem /sim/sgimips/dest/usr/include -c -traditional-cpp -DALL_STATE -DUSG_COMPAT -I/usr/src/lib/libc/arch/mips -nostdinc -idirafter /sim/sgimips/dest/usr/include /usr/src/lib/libc/arch/mips/sys/__sigreturn14.S -o __sigreturn14.o.tmp
*** Error code 1

Stop.
nbmake: stopped in /usr/src/lib/libc

Current version of /usr/src/lib/libc/arch/mips/sys/__sigreturn14.S:

    ##### version 1.4, 2004/03/26 20:35:37
    PSEUDO(__sigreturn14,compat_16___sigreturn14)


Previously was:

    ##### version 1.3, 2003/08/07 16:42:17      
    RSYSCALL(__sigreturn14)

Definitions for RSYSCALL and PSEUDO are in /usr/src/lib/libc/arch/mips/SYS.h:

    /*
     * Do a normal syscall.
     */
    #define RSYSCALL(x)                                                 \
            PSEUDO(x,x)

    #define PSEUDO(x,y)                                                 \
    LEAF(x);                                                            \
            PIC_PROLOGUE(x,t9);                                         \
            SYSTRAP(y);                                                 \
            bne a3,zero,err;                                            \
            j ra;                                                       \
    err:                                                                \
            PIC_CALL(__cerror,t9);                                      \
            END(x)

The problem occurs during the SYSTRAP preprocessing (We're not __STDC__ here):

    #ifdef __STDC__
    # define SYSTRAP(x) li v0,SYS_ ## x; syscall;
    #else
    # define SYSTRAP(x) li v0,SYS_/**/x; syscall;
    #endif

The expansion ends up being:

        li $2,SYS_compat_16___sigreturn14;

SYS_compat_16___sigreturn14 is #DEFINEd in /usr/src/sys/include/syscall.h:

    #define SYS_compat_16___sigaction14     291

If I change __sigreturn14.S back to using RSYSCALL instead of PSEUDO macro,
the expansion correctly results in:

        li $2,SYS_291; syscall;

I don't know if this is a macro error, gcc preprocessor error, or what.

Nonetheless, it is failing and I'm unable to build my nightly release snapshots.

Can anyone address that or tell me if I have a local problem?

Cheers,
-scott