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Remove useless configure probe for <lz4/lz4.h>.

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This seems to have been just copied-and-pasted from some other
header checks.  But our C code is entirely unprepared to support
such a header name, so it's only wasting cycles to look for it.
If we did need to support it, some #ifdefs would be required.

(A quick trawl at codesearch.debian.net finds some packages that
reference lz4/lz4.h; but they use *only* that spelling, and
appear to be intending to reference their own copy rather than
a system-level installation of liblz4.  There's no evidence of
freestanding installations that require this spelling.)

Discussion: https://postgr.es/m/457962.1616362509@sss.pgh.pa.us
This commit is contained in:
Tom Lane
2021-03-22 11:20:44 -04:00
parent a4d5284a10
commit 2c75f8a612
4 changed files with 1 additions and 19 deletions
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3
configure.ac
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@ -1440,8 +1440,7 @@ Use --without-zlib to disable zlib support.])])
fi
if test "$with_lz4" = yes; then
AC_CHECK_HEADERS(lz4/lz4.h, [],
[AC_CHECK_HEADERS(lz4.h, [], [AC_MSG_ERROR([lz4.h header file is required for LZ4])])])
AC_CHECK_HEADERS(lz4.h, [], [AC_MSG_ERROR([lz4.h header file is required for LZ4])])
fi
if test "$with_gssapi" = yes ; then