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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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13
configure vendored
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@ -13582,15 +13582,6 @@ fi
fi
if test "$with_lz4" = yes; then
for ac_header in lz4/lz4.h
do :
ac_fn_c_check_header_mongrel "$LINENO" "lz4/lz4.h" "ac_cv_header_lz4_lz4_h" "$ac_includes_default"
if test "x$ac_cv_header_lz4_lz4_h" = xyes; then :
cat >>confdefs.h <<_ACEOF
#define HAVE_LZ4_LZ4_H 1
_ACEOF
else
for ac_header in lz4.h
do :
ac_fn_c_check_header_mongrel "$LINENO" "lz4.h" "ac_cv_header_lz4_h" "$ac_includes_default"
@ -13607,10 +13598,6 @@ done
fi
done
fi
if test "$with_gssapi" = yes ; then
for ac_header in gssapi/gssapi.h
do :