|Version 17 (modified by Jack9, 5 years ago)|
- most file generation should be done via make, not Config. To see what files are generated by your configure, make realclean; perl Configure.pl; svn st --no-ignore.
- ext/Parrot-Embed/Makefile.PL should not be generated; it should just use Parrot::Config to get @ this config-time information.
- the steps that generate PMC related info don't have to happen at config time. move them into the build.
- accurate build dependencies
- checkdepend.pl should verify perl dependencies.
- checkdepend.pl should verify pir deps.
- checkdepend.pl should be able to generate makefiles, not just verify them.
- recursive make is bad. Avoid it where possible, esp for anything built with the default target.
- avoid make targets with two+ targets on the left; parallel make is allowed to call this rule twice, which is probably not what you want.
- make checkdepend.pl squawk about this, to make them easier to find and replace?
- Instead of invoking $(CC) directly, we invoke tools/dev/cc_flags.pl to invoke CC for us. We should use the c compiler directly instead; to support the cases where cc_flags.pl is using customized flags for a particular build step, that should be handled in the generated makefile, not by running a script to figure it out at build time. ./CFLAGS is currently generated from a cflags.in file that is using the conditional makefile syntax. Once we start generating the dependencies manually, we can generate manual rules for anything that requires non-standard CFLAGS.
Originally from checkdepend.pl:
This script will currently generate false positives. This happens because it assumes that there must be a fixed relationship between source and object files, e.g. C<buz/baz/foo.pir> will be built into C<buz/baz/foo.pbc>. This assumption holds in most cases but breaks down when a file with a dependency is not compiled into an object file of the same name. A possible solution to this is to use C-style compilation with separate build and "link" targets using pbc_merge. The other alternative involves making this script significantly smarter about figuring out which rules create a given object file.
- the plan here should be to have all pir that gets compiled initially be compiled to a pbc in the same directory (just like the standard .c->.o compilation process) - if we then need a separate rule to copy the built pbc to an "install" directory, that's fine; having the two stages should let us track the deps more automatically.
checkdepend.pl should interpolate variables like make does when checking make. (not all at once at the end, but as-we-go.) Specifically: eliminate parrot_include step.
one_make branch was merged into trunk Jan 25 2010 09:44 PM ET in r43593
At merge point, this was what tools/dev/checkdepend.pl was showing:
$ perl tools/dev/checkdepend.pl 2>&1 | grep 'not ok' not ok 62 - src/glut_callbacks.c has correct dependencies (Makefile: line 3509). not ok 119 - compilers/data_json/data_json.pir has correct dependencies (compilers/data_json/Rules.mak: line 1). not ok 120 - compilers/json/JSON.pir has correct dependencies (compilers/json/Rules.mak: line 1). not ok 122 - compilers/json/JSON/pge2pir.pir has correct dependencies (no rule found for this file). not ok 127 - compilers/nqp/bootstrap/nqp.pir has correct dependencies (compilers/nqp/Rules.mak: line 21). not ok 137 - compilers/pct/src/PCT/Grammar.pir has correct dependencies (no rule found for this file). not ok 142 - compilers/pge/PGE.pir has correct dependencies (no rule found for this file). not ok 146 - compilers/pge/PGE/P5Regex.pir has correct dependencies (no rule found for this file).