extconf.rb
(https://github.com/ruby/zlib/pull/69)
The android NDK (android-ndk-r21e) does not have crc32_z, adler32_z, nor
z_size_t in its zlib.h header file. However, it _does_ have the crc32_z
and adler32_z symbols in the libz.a static library!
mkmf performs two tests for have_func:
* It sees if a program that includes the header and takes the address of
the symbol can compile
* It sees if a program that defines the symbol as `extern void sym_name()`
and calls it can be linked
If either test works, it considers the function present. The
android-ndk-r21e is passing the second test but not the first for
crc32_z/adler32_z. So, we define HAVE_ZLIB_SIZE_T_FUNCS, but then can't
actually compile the extension (since the prototypes aren't in the
header file).
We can keep this working how it was working before by _also_ checking
for `have_type("z_size_t", "zlib.h")`. The have_type check _only_ looks
in the header file for the type; if a program including the header file
and using the type can't compile, the type is considered absent
regardless of what might be in libz.a.
3b9fe962d8
We use the Cloudflare fork of zlib
(https://github.com/cloudflare/zlib), which we find gives improved
performance on AWS Graviton ARM instances. That fork does not define
crc32_z and alder32_z functions.
Until two days ago, Ruby's zlib gem worked fine, because cloudflare zlib
_also_ did not define z_size_t, which meant Ruby did not try and use
these functions.
Since a3ba99596d
however, cloudflare zlib _does_ define z_size_t (but NOT crc32_z or
alder32_z). The zlib gem would try and use these nonexistant
functions and not compile.
This patch fixes it by actually specifically detecting the functions
that the gem wants to call, rather than just the presence of the
z_size_t type.
c96e8b9a57
* cast to suppress C4267 warnings; no possible loss of data as
following the comparison.
* shift base address to suppress LNK4281; although /DYNAMICBASE is
preferable, not sure from which version of link.exe supports it.
* ext/zlib/extconf.rb: fix building zlib for mingw, and for
cross-compiling.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57766 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* ext/extmk.rb (extract_makefile, extmake, configuration): store
extra libraries to be installed.
* tool/rbinstall.rb (ext-arch): install extra libraries.
* ext/zlib/extconf.rb: install zlib if built.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56230 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* ext/zlib/extconf.rb: no feature checks when building zlib from
the source, assume it is recent.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56220 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* ext/zlib/extconf.rb: try building zlib from the source if
exists.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56204 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
processing. rb_block_given_p() is not callable without the GVL.
* ext/zlib/extconf.rb: ditto
* NEWS: ditto
* test/zlib/test_zlib.rb: ditto
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36354 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This allows zlib streams to be processed without huge memory growth.
[Feature #6612]
* NEWS: ditto
* ext/zlib/zlib.c (zstream_expand_buffer): Uses rb_yield when a block
is given for streaming support. Refactored to use
zstream_expand_buffer_into to remove duplicate code.
* ext/zlib/zlib.c (zstream_expand_buffer_protect): Added wrapper
function to pass jump state back through GVL-free section to allow
zstream clean-up before terminating the ruby call.
* ext/zlib/zlib.c (zstream_expand_buffer_without_gvl): Acquire GVL to
yield processed chunk of output stream.
* ext/zlib/zlib.c (zstream_detach_buffer): When a block is given,
returns Qnil mid-stream and yields the output buffer at the end of
the stream.
* ext/zlib/extconf.rb: Update INCFLAGS to find internal.h for
rb_thread_call_with_gvl
* test/zlib/test_zlib.rb: Updated tests
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36349 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
since zlib-1.2.7.
* ext/zlib/zlib.c (rb_zlib_crc_table): use z_crc_t if available.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@35496 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
macros moved to extconf.h.
* ext/extmk.rb (extract_makefile, extmk): made RUBY_EXTCONF_H and
EXTSTATIC permanent.
* ext/{dbm,digest/*,socket,zlib}/extconf.rb: used $defs and $INCFLAGS.
* {bcc32,win32,wince}/Makefile.sub (COMPILE_C, COMPILE_CXX): added
$(INCFLAGS).
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@10193 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
