We pull the version out of libdeflate.h into the
Makefile, and then sed a few macros out of the new
file libdeflate.pc.in. Set the necessary Cflags
and Libs (CFLAGS and LFLAGS) based off compile-time
definitions. Depend on the Makefile to pick up
version changes. Update uninstall target.
Signed-off-by: nick black <dankamongmen@gmail.com>
Environment variable DISABLE_SHARED (following convention of --disable-shared
of ./configure script) disables building of shared library and shared lib
symlink. It makes life of downstream maintainer easier when maintaining package
for environment that supports only static libraries.
See https://github.com/NixOS/nixpkgs/pull/144438
The '-t' option of GNU gzip allows checking whether a gzip file is valid
without writing the data anywhere. It's relatively straightforward to
support in libdeflate-gzip too, so add support for it.
Resolves https://github.com/ebiggers/libdeflate/issues/125
[EB - updated commit message]
A lot of the internal library headers don't have include guards because
they aren't needed. It might look like a bug, though, and it doesn't
hurt to add them. So do this.
Update https://github.com/ebiggers/libdeflate/issues/117
I saw this tweet claiming this flag makes libdeflate run 20% faster on
WebAssembly: https://twitter.com/Algunenano/status/1317098341377900550.
Indeed, when tried even in a complex PNG compression benchmark I've
observed 10-15% improvement when this flag is enabled.
Even though WebAssembly might be running on top of a variety of
underlying platforms, the spec requires it to support unaligned access,
and on majority of platforms it will translate to a faster code.
Hence, I think it makes sense to enable this flag by default.
Include sys/types.h to avoid the following build failure on uclibc:
In file included from programs/gzip.c:28:0:
programs/prog_util.h:159:1: error: unknown type name ‘ssize_t’
ssize_t xread(struct file_stream *strm, void *buf, size_t count);
^
Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Remove the ability of matchfinder_init() and matchfinder_rebase() to
fail due to the matchfinder memory size being misaligned. Instead,
require that the size always be 128-byte aligned -- which is already the
case. Also, make the matchfinder memory always be 32-byte aligned --
which doesn't really have any downside.
The Makefile didn't trigger a rebuild if some settings changed, e.g.
LDFLAGS or DECOMPRESSION_ONLY. Fix this.
Also simplify the rebuild logic by not handling the library and programs
separately, as this optimization doesn't seem to be worthwhile.
Avoid confusion with the GNU extension 'program_invocation_name', which
is described by 'man 3 program_invocation_name'. The GNU version isn't
supposed to be exposed without defining _GNU_SOURCE, which we don't in
any of the relevant files, but it's best to avoid any confusion.
The cutoff for outputting uncompressed data is currently < 16 bytes for
all compression levels. That isn't ideal, since the higher the
compression level, the more we should bother with very small inputs; and
the lower the compression level, the less we should bother.
Use a formula that produces the following cutoffs:
Level Cutoff
----- ------
0 56
1 52
2 48
3 44
4 40
5 36
6 32
7 28
8 24
9 20
10 16
11 12
12 8
Update https://github.com/ebiggers/libdeflate/issues/67
Improve the list of Travis CI jobs by using the build matrix feature to
test all combinations of compilers and architectures on the latest
version of Ubuntu, and by adding more jobs for older versions of Ubuntu.
Don't try to detect and use different compilers, since it's better to
specify this via the environment (e.g. via the Travis CI build matrix).
While doing this, also deduplicate the logic for testing with valgrind
and UBSAN, improve the log messages, and add a test with -O3.
Now that run_tests.sh has been cleaned up to remove (or move) test
groups that weren't very useful, remove the concept of test groups and
just run all the tests.
