Merge pull request #152 from sureshsundriyal/wip

Fix some brokenness.

m4/lnav_with_readline.m4

@@ -77,8 +77,8 @@ AC_DEFUN([AX_PATH_LIB_READLINE],
     dnl i.e. We haven't picked up editline.
     AC_SEARCH_LIBS([history_set_history_state], [readline],
         [],
-        AC_MSG_ERROR([libreadline does not have the required symbols. editline possibly masquerading as readline.])
-        [$CURSES]
+        AC_MSG_ERROR([libreadline does not have the required symbols. editline possibly masquerading as readline.]),
+        [$CURSES_LIB]
     )
 
     AC_SUBST([READLINE_LIBS])

m4/lnav_with_sqlite3.m4

@@ -32,10 +32,13 @@ AC_DEFUN([LNAV_WITH_SQLITE3],
         ]
     )
 
+    AS_VAR_SET([saved_LDFLAGS], [$LDFLAGS])
+    LNAV_ADDTO([LDFLAGS], [-pthread])
     AC_SEARCH_LIBS([sqlite3_open], [sqlite3],
         AS_VAR_SET([SQLITE3_LIBS], ["-lsqlite3"]),
         AC_MSG_ERROR([sqlite3 library not found])
     )
+    AS_VAR_SET([LDFLAGS], [$saved_LDFLAGS])
 
     AC_CHECK_HEADERS([sqlite3.h], [],
         AC_MSG_ERROR([sqlite3 headers not found])