FS-11047: [build] detect v8.pc as well

configure.ac

@@ -1453,12 +1453,15 @@ PKG_CHECK_MODULES([MEMCACHED], [libmemcached >= 0.31],[
 
 PKG_CHECK_MODULES([V8FS_STATIC], [v8fs_static >= 6.1.298],[
   AM_CONDITIONAL([HAVE_V8FS],[true])],[
-  if module_enabled mod_v8; then
-    AC_MSG_ERROR([You need to either install libv8fs-dev (>= 6.1.298) or disable mod_v8 in modules.conf])
-  else
-    AC_MSG_RESULT([no])
-    AM_CONDITIONAL([HAVE_V8FS],[false])
-  fi
+  PKG_CHECK_MODULES([V8FS_STATIC], [v8 >= 6.1.298],[
+    AM_CONDITIONAL([HAVE_V8FS],[true])],[
+    if module_enabled mod_v8; then
+      AC_MSG_ERROR([You need to either install libv8fs-dev (>= 6.1.298) or disable mod_v8 in modules.conf])
+    else
+      AC_MSG_RESULT([no])
+      AM_CONDITIONAL([HAVE_V8FS],[false])
+    fi
+  ])
 ])
 
 PKG_CHECK_MODULES([AMQP], [librabbitmq >= 0.5.2],[