[ulogd2 PATCH 09/10] build: if `--enable-pgsql` is `yes` abort if libpq is not found

[Jeremy Sowden <jeremy@xxxxxxxxxx>]

If PostgreSQL support has been explicitly requested, abort if it is not
available.

Signed-off-by: Jeremy Sowden <jeremy@xxxxxxxxxx>
---
 configure.ac | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/configure.ac b/configure.ac
index 4d65d234be69..fd033164b872 100644
--- a/configure.ac
+++ b/configure.ac
@@ -104,6 +104,12 @@ AS_IF([test "x$enable_pgsql" != "xno"], [
       AC_MSG_RESULT([no])
     ])
 
+    AS_IF([test "x$libpq_LIBS" = "x"], [
+      AS_IF([test "x$enable_pgsql" = "xyes"], [
+        AC_MSG_ERROR([libpq not found])
+      ])
+    ])
+
   ])
 
 ])
-- 
2.34.1