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e74ea904ad
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.
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| .. | ||
| -test- | ||
| bigdecimal | ||
| cgi/escape | ||
| continuation | ||
| coverage | ||
| date | ||
| digest | ||
| erb/escape | ||
| etc | ||
| fcntl | ||
| fiddle | ||
| io | ||
| json | ||
| monitor | ||
| nkf | ||
| objspace | ||
| openssl | ||
| pathname | ||
| psych | ||
| pty | ||
| rbconfig/sizeof | ||
| ripper | ||
| rubyvm | ||
| socket | ||
| stringio | ||
| strscan | ||
| syslog | ||
| win32 | ||
| win32ole | ||
| zlib | ||
| .document | ||
| extmk.rb | ||
| Setup | ||
| Setup.atheos | ||
| Setup.nt | ||