Explicitly require MIT Kerberos for GSSAPI

WHen building with GSSAPI support, explicitly require MIT Kerberos and
check for gssapi_ext.h in configure.ac and meson.build.  Also add
documentation explicitly stating that we now require MIT Kerberos when
building with GSSAPI support.

Reveiwed by: Johnathan Katz
Discussion: https://postgr.es/m/[email protected]

1 files changed, 27 insertions, 0 deletions

diff --git a/configure b/configure
index dbea7eaf5f7..08bcf8f43af 100755
--- a/configure
+++ b/configure
@@ -14106,6 +14106,33 @@ fi
 
 done
 
+  for ac_header in gssapi/gssapi_ext.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "gssapi/gssapi_ext.h" "ac_cv_header_gssapi_gssapi_ext_h" "$ac_includes_default"
+if test "x$ac_cv_header_gssapi_gssapi_ext_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_GSSAPI_GSSAPI_EXT_H 1
+_ACEOF
+
+else
+  for ac_header in gssapi_ext.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "gssapi_ext.h" "ac_cv_header_gssapi_ext_h" "$ac_includes_default"
+if test "x$ac_cv_header_gssapi_ext_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_GSSAPI_EXT_H 1
+_ACEOF
+
+else
+  as_fn_error $? "gssapi_ext.h header file is required for GSSAPI" "$LINENO" 5
+fi
+
+done
+
+fi
+
+done
+
 fi
 
 if test -z "$OPENSSL"; then