Cleaning up some ASM files in src/lib/libc/sys/Makefile.inc fails

[Bernd Ernesti <veego%NetBSD.org@localhost>]

Hi,

there are some files left after a make cleandir in the obj dir for
src/lib/libc (i386 if it matters):

__adjtime.S
__clock_settime.S
__ftruncate.S
__lseek.S
__mmap.S
__ntp_adjtime.S
__pread.S
__preadv.S
__pwrite.S
__pwritev.S
__settimeofday.S
__truncate.S
_lwp_getprivate.S
mremap.S

This seems to be related to the '.if exists' usage in 
src/lib/libc/sys/Makefile.inc

I can understand why the last two files are not removed, because there is
no CLEANFILES entry for them:

--------------
ASM_MD= _lwp_getprivate.S mremap.S
       
.for f in ${ASM_MD}
. if !exists(${f})
   ASM+=        ${f}
. else  
   SRCS+=       ${f}
. endif
.endfor
--------------

Adding a CLEANFILES+=${f} after ASM wouldn't work because at the cleanup time 
these
two files are existing and a general CLEANFILES could fail on m68k who has these
asm stubs.

There is a similar problem with the other asm files which won't get removed, the
GLUE files:

--------------
GLUE+=  adjtime.c clock_settime.c ftruncate.c \
        lseek.c mmap.c ntp_adjtime.c pread.c preadv.c pwrite.c \
        pwritev.c settimeofday.c \
        truncate.c
# 'glue' files might .c or .S depending on the architecture
.for glue in ${GLUE}
. if exists(${glue:.c=.S})
# Build the ASM glue file
SRCS+=${glue:.c=.S}
. else  
.  if exists(__${glue:.c=.S})
SRCS+=__${glue:.c=.S} ${glue}
.  else
# Build the C glue file
SRCS+= ${glue}
# and an asm entry for __<syscall>
ASM_GLUE+= __${glue:.c=.S} 
.  endif
. endif
.endfor
--------------

Will this work at all with libc/arch/m68k/sys/__mmap.S because mmap.c exists
and will be found first. Or I miss something when I look at this makefile rules.

Regards,
Bernd