As korli suggested use B_PAGE_SIZE for defining stack size related
definitions what seems to be more natural for them and also may
help if we ever support an architecture with page size different than
4kB.
* Seems like there was no easy way to simply invalidate
a given BRow. Introduced BColumnListView::InvalidateRow().
* BRow::SetField() tried to invalidate the row, but invalidated
the listview instead of the BOutlineView responsible for
drawing the list contents. Use the new InvaalidateRow().
* It simplifies putting regular layout-aware views or layout items into
a BScrollView.
* Not quite complete yet: Height-for-width support is missing, but that
also requires fixing BScrollView in this respect. Scroll bar auto-hide
support would be nice as well.
* Rename TransactionHandler -> InstallationInterface and
DaemonClientTransactionHandler -> ClientInstallationInterface.
* Add InstallationInterface::InitInstalledRepository(). Use in
_AddInstalledRepository() to get the repository packages instead of
using the package roster. The ClientInstallationInterface
implementation does it that way.
If we fail to lock the window in the kInitialTickRate time, quit the thread.
We were deadlocking causing #4260 because you could open several
threads by moving through the screen saver list quickly all trying to lock
the same window at the same time, classic deadlock.
* Move RepositoryBuilder class to libpackage and add B* prefix to name.
* Pull BPackageManager class out of PackageManager and move to
libpackage. The base class is customizable via three handler objects
responsible for transaction handling, request execution, respectively
user interaction.
* Reorganize _ApplyPackageChanges(): Now we first prepare the
transactions for all affected installation locations (downloading
files etc.) and then commit them.
The property is archived and unarchived, but otherwise not yet stored.
If not set, FileName() returns CanonicalFileName(). Can be used for
packages like haiku.hpkg etc. that don't have a properly qualified file
name (yet).
* The default module is replaced by the Virtio RNG module when found.
* This can have the undesired effect of rendering /dev/urandom slow.
* Tested with the following QEmu command line option:
-device virtio-rng-pci,rng=rng0 -object rng-random,filename=/dev/random,id=rng0
* moved random.h to private/drivers headers.
Only flag ATM is B_VERIFY_ALLOW_UNINSTALL. It tells to solver to suggest
uninstalling packages when necessary instead of considering such a case
a problem.
It provides the functionality to copy file system entries (also
recursively). The code originates from the copyattr sources. Some
copyattr specific functionality has been removed and the code has been
adjusted for library use (i.e. no exit()s or fprintf()s). An optional
controller object can be set to customize the behavior.
* The use of a static variable for storing the chunk size made it shared between all instances of BUrlProtoclHttp.
* Inline the function at the single place where it is used, and allocate the variable on the stack instead.
The whole receiving loop should be split into chunked and non-chunked variants to improve code readability.
* Mostly useful for virtualization at the moment. Works in QEmu.
* Can be enabled by safemode settings/menu.
* Please note that x2APIC normally requires use of VT-d interrupt remapping feature
on real hardware, which we don't support yet.
Get rid of unused fRunner variable.
It is very basic now, it just works.
Also, renamed msg to message in MessageReceived() and
declared MakeFocus() above it (alphabetically).
... changes intended.
* 80 char limit fixes
* Indentation fixes
* Braces style fixes
* Use ternary operator where appropriate
* Rename menuItem to just item and declare it once outside
the loop
* Omit 3rd param of GetMouse() because it is default
* Rename variables eg state => focused and menu => submenu
* Indent comments below line they apply to
* Reword some comments
* Add some #pragmas
Fixes#6894
Private DrawLabel() method renamed to _DrawLabel() and rest of drawing
code moved to new private method _DrawMenuField(). These methods both
check to make sure that they are drawing in a valid rect that intersects
updateRect.
When label or menu is selected Draw a the label background in the selected
menu color matching the behavior of BeOS R5.
_DrawLabel() calls be_control_look->DrawLabel()
Update copyright year in MenuField.h
the child menu bar or the child menu bar's menu is enabled/disabled.
This means that there is just one status we have to check, the menu
fields, and the child menus agree. This change takes practical form
in the Backgrounds preflet which disables the placement menu when
the image is set to "None", but, only the menu got disabled and not the
parent menu field so the label was erroneously still drawn as enabled.
Finishing and refactoring the draft, initially implemented during April-May 2012
NOTE: startingFrameNumber returned to device contains the number of the
next free frame right after the last packed of submitted data. For more
details please Look into corresponding [haiku-development] discussion
started at 03 Jul 2013.
Partially fixes#1045.
Implements enhancement described in #9819
This feature works pretty much as it did on BeOS R5.
When you focus on the color control, the border is drawn blue and
the dot on the red ramp draws as an outline to show that it is
selected. You can push the up and down arrow keys to navigate to the
previous and next ramps respectively and can push right and left to
increment and decrement the color value of the selected ramp.
Clicking on the control no longer gives it focus.
In BeOS the left and right arrows would increment and decriment by 5,
on Haiku they increment and decrement by 1, but, by holding down the
key for a second or so the increment value increases to 5 allowing for
both course and fine adjustments.
On a technical note I split the int32 fFocusedComponent member variable
into 2 int16 member variables, fFocusedRamp and fClickedRamp. I did this
because I needed an entra variable, and can't change the size of the
class without using up another reserved member variable slot. int16
should be more than enough for these variables as they store an index to
the currently focused or clicked on ramp (0-3). Please someone chime in
if this is not okay for FBC in some condition I didn't think about.
devfs_io() can't fall back to calling vfs_synchronous_io(), if the
device driver doesn't support handling requests asynchronously. The
presence of the io() hook leads the VFS (do_iterative_fd_io()) to
believe that asynchronous handling is supported and set a
finished-callback on the request which calls the io() hook to start the
next chunk. Thus, instead of iterating through the request in a loop
the iteration happens recursively. For sufficiently fragmented requests
the stack may overflow (ticket #9900).
* Introduce a new vnode operation supports_operation(). It can be called
by the VFS to determine whether a present hook is actually currently
supported for a given vnode.
* devfs: implement the new hook and remove the fallback handling in
devfs_io().
* vfs_request_io.cpp: use the new hook to determine whether the io()
hook is really supported.
Although syscalls are done through SYSCALL and therefore don't actually
have an interrupt number, set it to 99 (the syscall vector on 32-bit)
in the iframe so that a syscall frame can be identified. Also added
vector/error_code to x86_64_debug_cpu_state for Debugger to use, not
sure why I didn't put them there in the first place.
* the processing of requests in drivers is eased a bit with this change, but
this could be improved for instance by enabling a driver to dequeue items
in a service thread instead of the interrupt handler.
* made a few methods const.
<stddef.h> is just fine and it doesn't break the use of libroot headers
when compiling something with -nostdinc++ (in C++ mode).
Not particularly important, but this gets compiling the libio C++ stuff
when building a native gcc a bit further. It still fails, since our
<printf.h> header is actually not usable (it includes <features.h>,
which is not available in Haiku) -- something we should fix eventually.
* make use of MSI/MSI-X PCI x86 API
* MSI support untested because QEmu only offers MSI-X
* changed a bit the Virtio bus API by adding a queue count parameter
for the setup_interrupt() hook.
* They are all over the place.. I give up
* Going off of engineering names and DCE is more accurate
* A lot of this info came from the x.org wiki
* I'd like to transition some of the engineering
name checks to use DCE versions.. they tend to be more
accurate and exact. (in some cases we can't, but most of
the time we can)
...from orientation params. Elaborated type specifiers are not needed
for C++ code and removing them makes doxygen happy. Verified working
on both gcc2h and gcc4h builds.
* Under the base URL there are supposed to be the repository files and a
subdirectory "packages".
* Fix the repository URL related confusion introduced earlier. The URL
in
the repository info (and thus in the repository file) is supposed to
be the base URL for the repository. It is not a (potentially)
different base URL for the package files. Package and repository
files were supposed to live in the same directory. Now, by requiring
the package files to live in a subdirectory -- which can also be a
symlink -- we gain some flexibility.
The URL in the repository config is usually the same as the in the
repository info, unless it refers to a mirror site. This allows for
mirrors to copy the original repository verbatim.
* Remove the PackageURL rule and introduce a DownloadPackage rule
instead. The URL for a package file cannot be computed in the jam
parsing phase anymore, as it contains the hash value of the package
list.
* BRepositoryConfig: Add PackagesURL() for convenience.
* Build libsolv and the dependency solver part of the package kit for
the build platform.
* Add build tool get_package_dependencies. Given a list of package files
and a list of repository files it determines the additional packages
that need to be retrieved from the repositories and prints their URLs.
* Add rules to work with external repositories in the build system
(build/jam/RepositoryRules):
- PackageRepository declares an external repository with all its
packages. The URL of the repository file isn't specified. It is
computed from a given base URL and the SHA256 hash of the list of
package files.
- GeneratedRepositoryPackageList generates a file containing the file
names of all packages in a repository.
- IsPackageAvailable returns whether a package is available in any
repository.
- PackageURL returns the URL for a package.
* Declare the HaikuPorts repository for x86_gcc2
(build/jam/repositories/HaikuPorts/x86_gcc2).
* Add rule AddHaikuImagePackages to add a package to the image and rule
IsHaikuImagePackageAdded to determine whether a package has been
added.
* OptionalPackages: Remove all entries that just downloaded and
installed an external package. AddHaikuImagePackages can be used
instead and is used in the remaining entries. Also move the remaining
optional package dependency declarations from
OptionalPackageDependencies here.
* ExtractBuildFeatureArchives: Instead of the URL parameter a package
name must be specified now. This allows to simplify BuildFeatures
significantly, since there's no dealing with URLs anymore. "if" out
the entries that aren't supported yet.
* build_haiku_image: For the packages installed in system and common
resolve their dependencies and download and install them as well.
* Introduce new package attribute B_HPKG_ATTRIBUTE_ID_PACKAGE (valid
only in a repository file) to group the attributes belonging to a
package.
* BRepositoryContentHandler:
- No longer derive from BPackageContentHandler.
- Add hooks HandlePackage() and HandlePackageDone() that bracket the
attributes for a package. This is more explicit and robust than
handlers having to guess when one package ended and the next began.
* BRepositoryCache: Make use of BPackageInfoContentHandler. No need to
duplicate the code for reading a package info from package info
attributes.
...on controls where it makes sense:
- BRadioButton and BCheckBox now return their preferred size as their
maximum.
- BRadioButton, BCheckBox and BTextControl now use left alignment by
default, as this is the most common use case for them.
Motivated by inconsistancies found while documenting BView.
Update copyright year, alphabetize
Variable names normalized:
* pt => point
* r => rect
* p => pattern
* c => color
* msg => message
* a, b and pt0, pt1 => start, end
* r, g, b, a => red, green, blue, alpha
A couple of white spaces fixes.
A couple of !pointer => pointer == NULL fixes.
GetPreferredSize params => _width and _height to indicate out params.
- The argument buffer contained in the debug_{pre,post}_syscall message structures wasn't large enough to accomodate all
arguments for some syscalls on x86-64, which could potentially have led to kernel memory corruption when using syscall
tracing via the debug API. As such, enlarge it to accomodate 64-bit platforms as well.
- Adjust TeamDebugger/SyscallInfo to discriminate the target architecture and read the arguments when trapping console
output. Gets the latter working on x86-64.
This resolves all issues the test suite uncovered. It should also deal
with hard links correctly, though that hasn't been tested. Still
unsupported are:
* changes due to mounting/unmounting a volume,
* tracking of symlinks in the path components.
Add inner class BWatchingInterface and method SetWatchingInterface().
This abstracts the calls to watch_node() and stop_watching(), thus
making it possible to use the path monitor in Tracker.
* The config space is larger than 255, we need to use an uint16 to access
offsets superior or equal to 256. The current API only proposes an uint8 for this.
This change switches the offset parameter to the uint16 type. Axel hinted that
the used values are the same with such a change (the doc says sign extended to 2 or
4 bytes).
I checked with GCC2 and it's indeed the case when inspecting the memory.
With GCC4, instructions are the same on function call.
* prints info about extended capabilities.
* struct pci_module_info and struct pci_device_module_info are extended with
pci_find_extended_capability().
* Also change kMinCellSize from a uint32 to a float so that it can be used
with std::min() and std::max() instead of min_c() and max_c().
* Set the text controls sizes and margins based on the font size. Also rework
_TextRectOffset() so that it will get the right spacing from by dividing the
palette frame by 3.
* Replace bare numbers and refactor with calculation or magic constant.
* Create a private method _TextRectOffset() which calculates and
returns the vertical text rect offset to use based on the font size.
* Replace 2.0 with new kBevelSpacing constant where appropriate.
* fPaletteFrame calculation in _LayoutView() was refactored but should
not have changed.
Fixes#9816
It is no longer necessary, or even desirable for us to set the max
content width of the menu bar of a BMenuField now that BMenuItem
truncation and BMenuField sizing are working.
The user may, however, wish to set the max content width of the menu
bar of a BMenuField themselves like so:
menuField->MenuBar()->SetMaxContentWidth(width);
and the Interface Kit will automatically deduct the left and right
margins from the width including the space used by the drop down arrow.
* For all identifiers: Rename global settings file to global writable
file. We want to use the respective attribute also for other writable
files, not only settings files.
* User settings file/global writable file info/attribute: Add
isDirectory property/child attribute. This allows declaring global/
user settings directories associated with the package.
... cancelling the normal item truncation behavior.
This funcationality comes from BeOS R5, we need to reproduce it for
backwards compat. KeymapSwitcher depends on it at least.
Minimum width is 20px, was set in last commit, comes from BeOS R5.
We use these constants in both MenuField.cpp and BMCPrivate.cpp
Incorporate kMarginWidth into kPopUpIndicatorWidth.
A small code simplication in FrameResized() along with replacing bare numbers
with magic constants.
* the Virtio PCI bus driver exposes a Virtio controller to the Virtio bus manager,
which in turn exposes a Virtio device consumed by Virtio drivers. Drivers follow the
new driver model.
* virtio_block handles Virtio block devices under disk/virtual/virtio_block/x/raw.
* Here is the Qemu command line option for Virtio disk devices:
-drive file=haiku.image,if=virtio
* the PCI bus driver currently supports only legacy interrupts (no MSI(-X) yet).
* There is room for improvements in the bus manager:
- it notifies the host for each queued request, which isn't optimal.
- transfer descriptors should probably be simply preallocated (they are nicely
leaked at the moment).
- indirect descriptors are not supported yet.
and in the block driver:
- get the id of the disk.
- implements flushing the cache.
- improves dma restrictions.
- do_io() should use a page for header descriptors instead of malloc(), which
could cross boundaries.
* The device manager tries to guess the driver based on the PCI device type, this
implies having to declare the "busses/virtio" path for each possible type
provided by Virtio. Thus future driver additions might require patching the device
manager.
* virtio.h is still private, the API is subject to changes.
* virtio_pci.h, virtio_blk.h, virtio_ring.h are copied unchanged from FreeBSD.
... the one expected for the respective attribute. Before it was
possible that e.g. a uint was read and then interpreted as a
const char*, if a string was expected for that attribute.
... <package/hpkg/PackageAttributes.h>, which also defines other
properties (name and type) for each attribute. It does so via a macro
that the caller can define to generate whatever code is desired.
Global and user settings files can be declared. For global ones an
update policy can be specified. If not specified, the settings file is
not included in the package, but created by the program (or user) later.
If an update type is specified, it defines what to do with the settings
file when updating the package to a newer version.
User settings files are never included in the package; they are always
created by the program or the user. If the package contains a template/
default settings file, it can be declared, but for informative purposes
only.
* Add minor_version to hpkg_header and hpkg_repo_header and make
heap_compression uint16.
* If the minor version of a package/repository file is greater than the
current one unknown attributes are ignored without error. This allows
introducing new harmless attributes without making the resulting files
unreadable for older package kit versions.
* ReaderImplBase:
- Add virtual CreateCachedHeapReader() which can create a cached
reader based on the given heap reader.
- Rename HeapReader() to RawHeapReader() and add HeapReader() for the
cached heap reader.
- Add DetachHeapReader() to allow a clients to remove the heap
reader(s) after deleting the ReaderImplBase object.
* packagefs:
- Add CachedDataReader class, which wraps a given
BAbstractBufferedDataReader and provides caching for it using a
VMCache. The implementation is based on the IOCache implementation.
- Use CachedDataReader to wrap the heap reader. For file data that
means they are cached twice -- in the heap reader cache and in the
file cache -- but due to the heap reader using a VMCache as well,
the pages will be recycled automatically anyway. For attribute data
the cache should be very helpful, since they weren't cached at all
before.
* Add flags parameter to Init() of BPackageReader and friends.
* Introduce flag B_HPKG_READER_DONT_PRINT_VERSION_MISMATCH_MESSAGE and
don't print a version mismatch error when given.
* package extract/list: Use the new flag.
* Pull _UnwriteLastPartialChunk() out of Reinit() for reuse.
* _UnwriteLastPartialChunk(): fPendingDataSize wasn't set.
* _PushChunks(): Some simplifications for clarity.
* ChunkBuffer/RemoveDataRanges(): Use data reading and decompression
methods provided by our base class instead of duplicating the
implementation.
* RemoveDataRanges():
- _FlushPendingData() before starting, so we don't ignore the pending
data and _UnwriteLastPartialChunk() when done, so a partial chunk
is read back into the pending data buffer.
- fUncompressedHeapSize wasn't reset before the main processing loop,
thus resulting in an erroneous size later on.
* Introduce BPackageWriterParameters which comprises all parameters
for package creation, currently flags and compression level. Such an
object can be passed to BPackageWriter::Init() and is passed on to
PackageWriterImpl and WriterImplBase.
* PackageFileHeapWriter: Add compressionLevel property and pass the
value on to ZlibCompressor.
* package add/create: Add options -0 ... -9 to specify the compression
level to be used.
Instead of handling compression for individual file/attribute data we
do now compress the whole heap where they are stored. This
significantly improves compression ratios. We still divide the
uncompressed data into 64 KiB chunks and use a chunk offset array for
the compressed chunks to allow for quick random access without too much
overhead. The tradeoff is a limited possible compression ratio -- i.e.
we won't be as good as tar.gz (though surprisingly with my test
archives we did better than zip).
The other package file sections (package attributes and TOC) are no
longer compressed individually. Their uncompressed data are simply
pushed onto the heap where the usual compression strategy applies. To
simplify things the repository format has been changed in the same
manner although it doesn't otherwise use the heap, since it only stores
meta data.
Due to the data compression having been exposed in public and private
API, this change touches a lot of package kit using code, including
packagefs and the boot loader packagefs support. The latter two haven't
been tested yet. Moreover packagefs needs a new kind of cache so we
avoid re-reading the same heap chunk for two different data items it
contains.
It is no longer public (or even private) API. BPackageDataReaderFactory
returns a BAbstractBufferedDataReader instead. The advantage is that
the latter doesn't have hpkg format specific dependencies.
It doesn't do much in terms of buffering, but defines an interface
buffered readers can implement, namely the additional
ReadDataToOutput() which currently BPackageDataReader specifies.
It uses sub-namespace BPackage::BHPKG::V1. Unlike the one for the
current format version, the V1 version of BPackageInfoContentHandler
lives in BHPKG(::V1) sub-namespace and is private.
* Use enums/constants/functions instead of preprocessor macros.
* Missing include in PackageInfoAttributeValue.h.
* PackageReaderImpl::Init(): Check version before header size and
return B_MISMATCHED_VALUES instead of B_BAD_DATA, if the version
doesn't match. This allows callers to determine the condition and
try a reader for a different version. A more flexible interface for
that case would be nice, but since we want to support the old package
version only temporarily, the current solution should be good enough.
* Switch bash, debugger, less, telnet[d] and top apps to use termcap
functionality provided by ncurses lib instead of GNU libtermcap.so;
* NetBSD version of tput utility replaced with ncurses' one. Fixes#9606;
* terminfo database is provided as mandatory package installed during
building target system;
* Remove libtermcap module. The termcap database source and
corresponding build rules are not removed to provide backward compatibility -
until all optional packages will be rebuild on upcoming system version
using terminfo. Note that gcc2 builds may require to provide termcap a bit
longer in the sake of binary compatibility with R5 era apps.
* If at least one image is either B_HAIKU_ABI_GCC_2_ANCIENT or
B_HAIKU_ABI_GCC_2_BEOS almost all areas are marked as executable.
* B_EXECUTE_AREA and B_STACK_AREA are made public. The former is enforced since
the introduction of DEP and apps need it to correctly set area protection.
The latter is currently needed only to recognize stack areas and fix their
protection in compatibility mode, but may also be useful if an app wants
to use sigaltstack from POSIX API.
* Factor out the code to add some data to the about window, with a header and a content under it
* Make this method public so it's possible to add custom entries in an about box
* If the method is called with only the header or only the content, the text is added non-bold and non-indented (like the description entry*).
* Make the header text bold. I'm not sure it looks that good, after all. Thoughts ?
This means the build tools will no longer be built against the host
platform's libbe, which avoids compatibility problems -- e.g. an
older Haiku host libbe may not have certain features the build tools
require -- and also makes the build behave more similiar on Haiku and
other platforms. The host libroot dependency still remains and is not
easy to get rid of.
Also remove some bits of BeOS/Dano/Zeta build support.
* Pull out base class MimeEntryProcessor out of AppMetaMimeCreator.
* Pull class MimeInfoUpdater out of UpdateMimeInfoThread and derive it
from MimeEntryProcessor.
* MimeInfoUpdater: Instead of BMimeType::GuessMimeType(), use
Database::GuessMimeType() directly.
* This pulls in some more stuff, like libicon and agg which are also
included in libbe_build, now.
* Update a few libbe_build classes and headers needed to get things
building.
* This likely breaks the <build>mimeset build on Haiku.
* Add class DatabaseLocation. It contains a list of the MIME DB
directory paths plus methods to access type files.
* Move all low-level MIME DB access functions from
database_{support,access} to DatabaseLocation. All code that formerly
used those now requires a DatabaseLocation object. In BMimeType and in
the registrar the default object is used, but the low-level classes
can now be reused with different locations.
* Move get_icon_data() from database_access to database_support and
delete the former, which is now empty.
* Together with database_{access,support}.cpp it is built into a static
library.
* Add new interfaces MimeSniffer and Database::NotificationListener for
plugging in registrar specific functionality (the sniffer add-on
support and the notification mechanism).
Each installation location (system, common, common/non-packaged,
~/config, ~/config/non-package) can now have a read-only data/mime_db
directory. ~/config/settings/beos_mime is now named mime_db as well. The
contents of all directories makes up the MIME DB. Entries in more
specific locations shadow entries in more general locations. Only the
directory in ~/config/settings is where the registrar writes changes to.
The new layout allows packages to contribute entries to the MIME DB by
simply providing the respective files in data/mime_db. Consequently the
user settings directory is supposed to contain only the things the user
has actually changed.
Seems to work fine as far as tested. A few issues, though:
* The registrar doesn't monitor the directories yet, so it doesn't
notice entry changes due to package de-/activation.
* ATM it is not possible to remove a MIME type that is not in the user
settings directory, although the FileTypes GUI suggests that it is.
We'd have to work with white-outs, since we cannot remove the files in
the data/mime_db directories. Or, alternatively, the API has to be
extended and the FileTypes GUI adjusted to disable the "Remove" button
in such a case.
An arbitrary number of directories can be added, which the implemented
BEntryList interface presents as a single merged entry list. Three
different merge policies are supported which define how entries that
appear in more than one directory are treated.
Remove no longer needed header includes, most that I recently added
a few that were already there but just aren't needed anymore. Don't
use BPrivate::MenuPrivate namespace.
Just a few commits ago I moved the label truncation code out of
BMenuItem and into BMCMenuBar because the truncation had to happen
outside of BMenuItem. Turns out, that wasn't true so I'm moving the
label truncation back into BMenuItem and removing the _DrawItems()
method from BMCMenuBar.
Note that the code is not a copy of what was there before, but, the
updated version I created for BMCMenuBar. The main difference is that
I use menuPrivate.Padding() instead of GetItemMargins() and I always
use the width of the parent menu frame instead of using fBounds even
if the state is not MENU_STATE_CLOSED. These are changes needed for
BMCMenuBar but should work just as well for a regular BMenu.
...instead of in BMenuItem and remove the truncation code from BMenuItem.
The label truncation code cannot work in BMenuItem because the super
menu helpfully resizes itself to fit the menu item. So, instead we do the label
truncation in BMCPrivate making sure that BMenuItem there can't expand the
BMCMenuBar because we set the width to fMenuField->_MenuBarWidth()
explicity.
Note that this only truncates the label in BMCMenuField, i.e. the label inside
the menufield, it does nothing to the labels of the menu items in the attached
BMenu or BPopUpMenu which is exactly what we want.
Was passing !fixedSize into the view flags of BMenuBar, which made no sense.
Stop doing that, set fixedSize to true instead.
Remove the fixedSize parameter from this contructor, it's too late for that.
* Add optional packages Zlib and Zlib-devel.
* Simplify the build feature section for zlib and also extract the
source package.
* Replace all remaining references to the zlib instance in the tree and
remove it.
In some cases, BStringColumn wouldn't properly detect that an update was
needed, and would consequently fail to truncate a string as needed with
a column resize.
