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Diagnose incompatible OpenLDAP versions during build and test.

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With OpenLDAP versions 2.4.24 through 2.4.31, inclusive, PostgreSQL
backends can crash at exit.  Raise a warning during "configure" based on
the compile-time OpenLDAP version number, and test the crash scenario in
the dblink test suite.  Back-patch to 9.0 (all supported versions).
This commit is contained in:
Noah Misch
2014-07-22 11:01:03 -04:00
parent 24e786f056
commit d7cdf6ee36
11 changed files with 216 additions and 1 deletions
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52
configure vendored
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@ -9475,6 +9475,17 @@ fi
fi
# PGAC_LDAP_SAFE
# --------------
# PostgreSQL sometimes loads libldap_r and plain libldap into the same
# process. Check for OpenLDAP versions known not to tolerate doing so; assume
# non-OpenLDAP implementations are safe. The dblink test suite exercises the
# hazardous interaction directly.
if test "$with_ldap" = yes ; then
if test "$PORTNAME" != "win32"; then
for ac_header in ldap.h
@ -9491,6 +9502,47 @@ fi
done
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for compatible LDAP implementation" >&5
$as_echo_n "checking for compatible LDAP implementation... " >&6; }
if ${pgac_cv_ldap_safe+:} false; then :
$as_echo_n "(cached) " >&6
else
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
#include <ldap.h>
#if !defined(LDAP_VENDOR_VERSION) || \
(defined(LDAP_API_FEATURE_X_OPENLDAP) && \
LDAP_VENDOR_VERSION >= 20424 && LDAP_VENDOR_VERSION <= 20431)
choke me
#endif
int
main ()
{
;
return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
pgac_cv_ldap_safe=yes
else
pgac_cv_ldap_safe=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $pgac_cv_ldap_safe" >&5
$as_echo "$pgac_cv_ldap_safe" >&6; }
if test "$pgac_cv_ldap_safe" != yes; then
{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING:
*** With OpenLDAP versions 2.4.24 through 2.4.31, inclusive, each backend
*** process that loads libpq (via WAL receiver, dblink, or postgres_fdw) and
*** also uses LDAP will crash on exit." >&5
$as_echo "$as_me: WARNING:
*** With OpenLDAP versions 2.4.24 through 2.4.31, inclusive, each backend
*** process that loads libpq (via WAL receiver, dblink, or postgres_fdw) and
*** also uses LDAP will crash on exit." >&2;}
fi
else
for ac_header in winldap.h
do :