Running "./jam0 install" installed jam in /boot/common/bin/ which
is no longer used. Other directories also looked outdated so they
are updated too.
Test plan:
1. make
2. ./jam0 install
Install /boot/system/non-packaged/bin/jam
3. which jam
/boot/system/non-packaged/bin/jam
Change-Id: I69c719eab0bd211f545c17337e3bc73bb1ab78fe
Reviewed-on: https://review.haiku-os.org/c/buildtools/+/4617
Reviewed-by: waddlesplash <waddlesplash@gmail.com>
The call of make in buildtools/jam produces the following output:
LINKLIBS= ./jam0
...patience...
...found 271 target(s)...
...updating 33 target(s)...
MkDir1 bin.linuxx86
Cc bin.linuxx86/builtins.o
< reduced output >
Cc bin.linuxx86/variable.o
Archive bin.linuxx86/libjam.a
ar: `u' modifier ignored since `D' is the default (see `U')
ar: creating bin.linuxx86/libjam.a
...
'make' bootstraps 'jam0' which calls 'ar' to create the static library 'libjam.a'.
The call looks like this:
ar ru bin.linuxx86/libjam.a bin.linuxx86/builtins.o <reduced output> bin.linuxx86/variable.o
The modifier 'u' gets ignored.
The underlying cause is that the build was done in deterministic mode ('D'), a.o. NOT using timestamps, which is completely fine.
But because of this the archiver tool (ar) can never update files in the archive based on timestamps.
"ru" means replace files (flag 'r') only if they are updated (flag suffix 'u') based on timestamps.
This patch removes the flag suffix 'u'.
Change-Id: I57fa2d50c2081ee66d1b71648714e773ecb7cd59
Reviewed-on: https://review.haiku-os.org/c/buildtools/+/4419
Reviewed-by: Adrien Destugues <pulkomandy@gmail.com>
This brings Jam's usage of AR to be more conventional: the flags for AR
are moved to a separate variable, called ARFLAGS, ensuring that any
environment that overrides the AR variable will still end up using the
correct flags to create the archve.
Change-Id: I00449b284fab132d5fc9239017d742480fb51820
Reviewed-on: https://review.haiku-os.org/c/buildtools/+/3226
Reviewed-by: Adrien Destugues <pulkomandy@gmail.com>
On most systems, "D" (deterministic) is now the default archiving mode,
and so specifying "u" will throw a warning that "D" is being used anyway.
Jam previously assumed, as it was passing "u", that the timestamps inside
.a's were valid when they were actually 0, which was leading to spurious
rebuilds of .as.
After this change, we assume archives cannot be scanned for timestamps,
which should stop the spurious rebuilds of targets on most systems.
Hopefully this is enough to satisfy the license requirements.
Remove some of the "LOCAL CHANGE" comments as a result (ones about
the HeaderCache remain.)
If setting OPTIM by jam basically makes it impossible for the project that
is using jam to set its own optimization level while still allowing user
to override that in command line. For example in Haiku jam files there is
line like this: "OPTIM ?= -O2", which obviously is meant to set optimization
level to O2 unless user overwrites it. Unfortunately, because Jam have already
set OPTIM to -O this line never had an intended effect.
After this Jam no longer thinks it knows best what is good for projects
that are using it and Haiku is by default compiled with -O2.
Signed-off-by: Paweł Dziepak <pdziepak@quarnos.org>
* On Haiku, the jam install folder should be /boot/common.
git-svn-id: file:///srv/svn/repos/haiku/buildtools/trunk@32875 a95241bf-73f2-0310-859d-f6bbb57e9c96
