Public bug reported:
db does not crossbuild for a new architecture. Nor would it crossbuild
for an existing architecture doing a stage1 profile build either (I
don't think). I couldn't even get it to natively build without nobbling
the db_signature thing. I don't understand how that is supposed to work,
so that part of the patch should be reviewed. It's disabled for the
crossbuild anyway so doesn't cause issue there. Although I don't see why
it shouldn't work the same in both cases...
So this patch works, but various things were confusing and this is very
much a 'version 0.1' cross/staging/arm64 patch. Smoone who knows the
package better could improve it.
The main config files are already uptodate and thus work for
arm64/aarch64, but the sub-files in the lang/sql dirs (actually 3 in
different dirs (sqlite, jdbc, odbc) are old. I tried to get dh-
autoreconf to update these with a debian/autoreconf file listing these
dirs (or just the lang/sql/sqlite dir, as the only one that actually
gets built) but it never put the old files back so a second build would
always halt on 'missing/changed files'. So this is a good old-fashioned
config.guess/sub patch, because that works. Again, only doing the one
dir that gets built out of these 3. I also tried explicit dh_autoreconf
and autoreconf_clean commands in the rules file, but still failed to get
it to work. I expect this could be done.
I tried a range of things to get past sqlite build errors. config.h from an
external libsqlite-dev is needed because -D_HAVE_SQLITE_CONFIG_H is set so the
build-dep for that is added to build deps. I don't know why the native build
doesn't fall over this problem. Maybe I'm confused, but this worked for me.
An alternative is the part of the patch that disables sql build and package,
switched with ENABLE_SQL=no.
It was also necessary to run configure on the lang/sql/sqlite dir otherwise it
tries to do a native build there and ignores the configure setting to turn it
off. I tried a number of things here and I'm not absolutely sure which
combinations are needed. As it stands the SQL part of the build can be
disabled, but is not disabled in stage1 as it does not seem to be necessary for
a bootstrap (sqlite3 can be cross-built first). This WFM.
DEB_BUILD_OPTIONS=nocheck is not honoured by the rules file, and is
overwridden by cross/not cross state. This prevents a native stage1
build as --enable test also requires --enable-tcl. Interesting question
as to whether cross should set test state automatically, or if ot should
be left to build tools. Better fixes may well be possible here.
The clean target didn't clean the build dir or the generated
db_signature file. So a second build never worked. Tidied that too.
The rules files has inconsistent use of $(CURDIR) but I left that alone.
** Affects: db (Ubuntu)
Importance: Undecided
Status: New
** Tags: arm64 cross patch
** Patch added: "db_5.1.29-5ubuntu4-cross-fix-2.patch"
https://bugs.launchpad.net/bugs/1105368/+attachment/3500462/+files/db_5.1.29-5ubuntu4-cross-fix-2.patch
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https://bugs.launchpad.net/bugs/1105368
Title:
db: crossbuild and arm64 fixes
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