Zlib patch: prevent uninitialized use of state->check #42

Job	Run time
Ubuntu GCC	13s
Ubuntu 20.04 GCC	12s
Ubuntu GCC OSB	14s
Ubuntu GCC Compat No Opt	8s
Ubuntu GCC ARM SF	26s
Ubuntu GCC ARM SF Compat No Opt	36s
Ubuntu GCC ARM HF	33s
Ubuntu GCC ARM HF No ACLE	3m 39s
Ubuntu GCC ARM HF No NEON	30s
Ubuntu GCC ARM HF Compat No Opt	27s
Ubuntu GCC AARCH64	23s
Ubuntu GCC AARCH64 No ACLE	32s
Ubuntu GCC AARCH64 No NEON	22s
Ubuntu GCC AARCH64 Compat No Opt	27s
Ubuntu GCC MIPS	22s
Ubuntu GCC MIPS64	20s
Ubuntu GCC PPC	21s
Ubuntu GCC PPC No Power8	25s
Ubuntu GCC PPC64	20s
Ubuntu GCC PPC64LE	31s
Ubuntu GCC S390X	25s
Ubuntu GCC S390X No vectorized CRC32	22s
Ubuntu GCC S390X DFLTCC	26s
Ubuntu GCC S390X DFLTCC Compat	19s
Ubuntu Emscripten WASM32	41s
macOS GCC Symbol Prefix	46s
macOS GCC Symbol Prefix (ARM64)	21s
macOS GCC Symbol Prefix & Compat	44s
macOS GCC Symbol Prefix & Compat (ARM64)	25s
macOS GCC	1m 2s
macOS GCC (ARM64)	22s
	16m 54s

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