Configuring R with zlib-1.2.10 I get this error:
checking for zlib.h... yes
checking if zlib version >= 1.2.5... no
checking whether zlib support suffices... configure: error: zlib library and
headers
are required
So I asked Mark from zlib about this problem and he wrote back:
> exit(strncmp(ZLIB_VERSION, "1.2.5", 5) < 0);
strcmp("1.2.10", "1.2.5") will indicate incorrectly that the 1.2.10 is *less*
than
1.2.5. This is why there is ZLIB_VERNUM, which is a number that can be
compared. So
it should be simply:
exit(ZLIB_VERNUM < 0x1250);
bastl
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