Store up errno in a couple of spots.

[m6w6/libmemcached] / m4 / pandora_have_libpq.m4

diff --git a/m4/pandora_have_libpq.m4 b/m4/pandora_have_libpq.m4
index 86ccb49520cfdab1e71b4012feb5237596552d8b..28675d1a22fe70cb1c3549cd9a0d191c454e22c1 100644 (file)
--- a/m4/pandora_have_libpq.m4
+++ b/m4/pandora_have_libpq.m4
@@ -1,5 +1,5 @@
-dnl  Copyright (C) 2009 Sun Microsystems
-dnl This file is free software; Sun Microsystems
+dnl  Copyright (C) 2009 Sun Microsystems, Inc.
+dnl This file is free software; Sun Microsystems, Inc.
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 
@@ -10,11 +10,26 @@ AC_DEFUN([_PANDORA_SEARCH_LIBPQ],[
   dnl  Check for libpq
   dnl --------------------------------------------------------------------
 
-  AC_LIB_HAVE_LINKFLAGS(pq,,[
-    #include <libpq-fe.h>
-  ], [
-    PGconn *conn;
-    conn = PQconnectdb(NULL);
+  AC_ARG_ENABLE([libpq],
+    [AS_HELP_STRING([--disable-libpq],
+      [Build with libpq support @<:@default=on@:>@])],
+    [ac_enable_libpq="$enableval"],
+    [ac_enable_libpq="yes"])
+
+  AS_IF([test "x$ac_enable_libpq" = "xyes"],[
+    AC_CHECK_HEADERS([libpq-fe.h])
+    AC_LIB_HAVE_LINKFLAGS(pq,,[
+      #ifdef HAVE_LIBPQ_FE_H
+      # include <libpq-fe.h>
+      #else
+      # include <postgresql/libpq-fe.h>
+      #endif
+    ], [
+      PGconn *conn;
+      conn = PQconnectdb(NULL);
+    ])
+  ],[
+    ac_cv_libpq="no"
   ])
   
   AM_CONDITIONAL(HAVE_LIBPQ, [test "x${ac_cv_libpq}" = "xyes"])
@@ -26,6 +41,6 @@ AC_DEFUN([PANDORA_HAVE_LIBPQ],[
 
 AC_DEFUN([PANDORA_REQUIRE_LIBPQ],[
   AC_REQUIRE([PANDORA_HAVE_LIBPQ])
-  AS_IF([test x$ac_cv_libpq = xno],
-      AC_MSG_ERROR([libpq is required for ${PACKAGE}]))
+  AS_IF([test "x${ac_cv_libpq}" = "xno"],
+    AC_MSG_ERROR([libpq is required for ${PACKAGE}]))
 ])