zlib-rs as a system libz.so replacement? #419
Description
On conda-forge/conda-forge.github.io#2638 (comment), adding zlib-rs as a potential provider for libz.so.1 was suggested. However, FWICS this isn't really supported right now. Besides the library being built under a different name, if I replace my system zlib.so.1 with it, I'm getting the following errors:
wget: /usr/lib64/libz.so.1: no version information available (required by /usr/lib64/libgnutls.so.30)
wget: /usr/lib64/libz.so.1: no version information available (required by /usr/lib64/libgio-2.0.so.0)
Presumably for better ABI compatibility, the library would need to export versioned symbols like zlib does.
abi-dumper suggests:
# abidiff /usr/lib64/libz.so.1 /usr/lib64/libz_rs.so.1
ELF SONAME changed
Functions changes summary: 0 Removed, 0 Changed, 0 Added function
Variables changes summary: 0 Removed, 0 Changed, 0 Added variable
Function symbols changes summary: 48 Removed, 0 Added function symbols not referenced by debug info
Variable symbols changes summary: 1 Removed, 0 Added variable symbol not referenced by debug info
SONAME changed from 'libz.so.1' to 'libz_rs.so.1'
48 Removed function symbols not referenced by debug info:
[D] adler32_combine64@@ZLIB_1.2.3.3
[D] adler32_combine@@ZLIB_1.2.2
[D] adler32_z@@ZLIB_1.2.9
[D] compressBound@@ZLIB_1.2.0
[D] crc32_combine64@@ZLIB_1.2.3.3
[D] crc32_combine@@ZLIB_1.2.2
[D] crc32_combine_gen64@@ZLIB_1.2.12
[D] crc32_combine_gen@@ZLIB_1.2.12
[D] crc32_combine_op@@ZLIB_1.2.12
[D] crc32_z@@ZLIB_1.2.9
[D] deflateBound@@ZLIB_1.2.0
[D] deflateGetDictionary@@ZLIB_1.2.9
[D] deflatePending@@ZLIB_1.2.5.1
[D] deflatePrime@@ZLIB_1.2.0.8
[D] deflateResetKeep@@ZLIB_1.2.5.2
[D] deflateSetHeader@@ZLIB_1.2.2
[D] deflateTune@@ZLIB_1.2.2.3
[D] gzbuffer@@ZLIB_1.2.3.5
[D] gzclearerr@@ZLIB_1.2.0.2
[D] gzclose_r@@ZLIB_1.2.3.5
[D] gzclose_w@@ZLIB_1.2.3.5
[D] gzdirect@@ZLIB_1.2.2.3
[D] gzfread@@ZLIB_1.2.9
[D] gzfwrite@@ZLIB_1.2.9
[D] gzgetc_@@ZLIB_1.2.5.2
[D] gzoffset64@@ZLIB_1.2.3.5
[D] gzoffset@@ZLIB_1.2.3.5
[D] gzopen64@@ZLIB_1.2.3.3
[D] gzprintf
[D] gzseek64@@ZLIB_1.2.3.3
[D] gztell64@@ZLIB_1.2.3.3
[D] gzungetc@@ZLIB_1.2.0.2
[D] gzvprintf@@ZLIB_1.2.7.1
[D] inflateBack@@ZLIB_1.2.0
[D] inflateBackEnd@@ZLIB_1.2.0
[D] inflateBackInit_@@ZLIB_1.2.0
[D] inflateCodesUsed@@ZLIB_1.2.9
[D] inflateCopy@@ZLIB_1.2.0
[D] inflateGetDictionary@@ZLIB_1.2.7.1
[D] inflateGetHeader@@ZLIB_1.2.2
[D] inflateMark@@ZLIB_1.2.3.4
[D] inflatePrime@@ZLIB_1.2.2.4
[D] inflateReset2@@ZLIB_1.2.3.4
[D] inflateResetKeep@@ZLIB_1.2.5.2
[D] inflateUndermine@@ZLIB_1.2.3.3
[D] inflateValidate@@ZLIB_1.2.9
[D] uncompress2@@ZLIB_1.2.9
[D] zlibCompileFlags@@ZLIB_1.2.0.2
1 Removed variable symbol not referenced by debug info:
[D] z_vstring
Is such a support a possible goal for the project?