Fix [73d5cb615e]: zlib-8.8, zlib-8.16 fail on Fedora 40, gcc 14.1.1 #4584

Job	Run time
gcc	3m 29s
gcc (--disable-shared)	3m 26s
gcc (--enable-symbols)	3m 20s
gcc (--enable-symbols=mem)	4m 5s
gcc (--enable-symbols=all)	4m 13s
gcc (CFLAGS=-ftrapv)	3m 29s
gcc (CFLAGS=-DTCL_UTF_MAX=4)	3m 27s
gcc (CFLAGS=-DTCL_UTF_MAX=6)	3m 30s
gcc (CFLAGS=-m32 CPPFLAGS=-m32 LDFLAGS=-m32 --disable-64bit)	3m 41s
	32m 40s

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