roy@phri.UUCP (Roy Smith) (01/20/87)
We're currently running 4.2, with non-standard disk partitions on
our RA-81 disk. We just got the 4.3 tapes and I started to get to work
installing it. Following the instructions for upgrading a 4.2 system, I
copied the 4.3 /usr file system to an empty partition and changed the
partition table in the 4.3 ra driver and ran config. The problem is when I
do a "make depend" (we're still running 4.2), our c compiler ignores the
"-M" flag (to generate the dependancy lists) and just starts compiling all
the code. Arghhh!
The funny thing is that when I let make finish, I get a bootable
vmunix that works (or seems to work; it booted, but I didn't give it much
of a workout). Is it safe to assume that if I do a "make clean" and then a
"make vmunix", everything will get done right even if "make depend" didn't
get run? I know this will waste a lot of time compiling stuff I don't have
to, but I only have to do it once and it seems faster than dumping and
restoring my whole disk.
--
Roy Smith, {allegra,cmcl2,philabs}!phri!roy
System Administrator, Public Health Research Institute
455 First Avenue, New York, NY 10016
"you can't spell deoxyribonucleic without unix!"chris@mimsy.UUCP (Chris Torek) (01/22/87)
In article <2565@phri.UUCP> roy@phri.UUCP (Roy Smith) writes: >... Following the instructions for upgrading a 4.2 system [to 4.3BSD] ... >The problem is when I do a "make depend" (we're still running 4.2), >our c compiler ignores the "-M" flag (to generate the dependancy lists) >and just starts compiling all the code. Arghhh! >The funny thing is that when I let make finish, I get a bootable >vmunix that works.... Is it safe to assume that if I do a "make >clean" and then a "make vmunix", everything will get done right >even if "make depend" didn't get run? In short: Yes. In longer words, here is a shell script that should work under 4BSD that does what `cc -M' does. It would be nice if we had used `makedep' or `getdep' or something other than `cc -M' in all the makefiles in 4.3, but none of us thought of it. Ah well. You could always make `/bin/cc' a shell script similar to the one below, and trap the -M option there. : getdep - get dependency lists. : change ":" comments to "#" comments if your shell supports those; : the result will run faster. : find cpp cpp=unknown for where in /lib /usr/lib /bin /usr/bin; do if test -f $where/cpp; then cpp=$where/cpp; break; fi done if test $cpp = unknown; then echo "I cannot find cpp, sorry" 1>&2; exit 1 fi : handle arguments incl= for i do case "$i" in -I*) incl="$incl $i";; *) : assume source file : put '$dep' in front of dependencies dep=`echo "$i" | sed -e 's,/,\\\\/,g' -e 's/\.c$/.o/'` : Find includes, remove leading numerics, remove ./, : remove double quotes, and remove trailing numerics. : Sort that, discarding duplicates, and add '$dep'. $cpp $incl "$i" | grep "^#" | sed -e 's/# [0-9]* //' -e 's,"./,",' -e 's/"\(.*\)"/\1/' \ -e 's/ [ 0-9]*$//' | sort -u | sed -e "s/^/$dep: /";; esac done -- In-Real-Life: Chris Torek, Univ of MD Comp Sci Dept (+1 301 454 7690) UUCP: seismo!mimsy!chris ARPA/CSNet: chris@mimsy.umd.edu