From b6b356b948f90d813e09f97b0711840460646e88 Mon Sep 17 00:00:00 2001
From: Romuald Conty <romuald@libnfc.org>
Date: Mon, 18 Mar 2013 23:27:23 +0100
Subject: [PATCH] CMake: only include UART related files when (at least) one
 UART driver is enabled

---
 cmake/modules/LibnfcDrivers.cmake | 2 ++
 libnfc/CMakeLists.txt             | 9 ++++++---
 2 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/cmake/modules/LibnfcDrivers.cmake b/cmake/modules/LibnfcDrivers.cmake
index 84a2bc9..8611844 100644
--- a/cmake/modules/LibnfcDrivers.cmake
+++ b/cmake/modules/LibnfcDrivers.cmake
@@ -19,11 +19,13 @@ ENDIF(LIBNFC_DRIVER_PN53X_USB)
 IF(LIBNFC_DRIVER_ARYGON)
   ADD_DEFINITIONS("-DDRIVER_ARYGON_ENABLED")
   SET(DRIVERS_SOURCES ${DRIVERS_SOURCES} "drivers/arygon")
+  SET(UART_REQUIRED TRUE)
 ENDIF(LIBNFC_DRIVER_ARYGON)
 
 IF(LIBNFC_DRIVER_PN532_UART)
   ADD_DEFINITIONS("-DDRIVER_PN532_UART_ENABLED")
   SET(DRIVERS_SOURCES ${DRIVERS_SOURCES} "drivers/pn532_uart")
+  SET(UART_REQUIRED TRUE)
 ENDIF(LIBNFC_DRIVER_PN532_UART)
 
 INCLUDE_DIRECTORIES(${CMAKE_CURRENT_SOURCE_DIR}/drivers)
diff --git a/libnfc/CMakeLists.txt b/libnfc/CMakeLists.txt
index f03f0ca..920e15e 100644
--- a/libnfc/CMakeLists.txt
+++ b/libnfc/CMakeLists.txt
@@ -13,10 +13,13 @@ INCLUDE_DIRECTORIES(${CMAKE_CURRENT_SOURCE_DIR}/chips)
 
 # Library's buses
 IF(LIBUSB_FOUND)
-   SET(BUSES_SOURCES buses/uart buses/usbbus)
-ELSE(LIBUSB_FOUND)
-   SET(BUSES_SOURCES buses/uart)
+  SET(BUSES_SOURCES buses/usbbus)
 ENDIF(LIBUSB_FOUND)
+
+IF(UART_REQUIRED)
+  LIST(APPEND BUSES_SOURCES buses/uart)
+ENDIF(UART_REQUIRED)
+
 INCLUDE_DIRECTORIES(${CMAKE_CURRENT_SOURCE_DIR}/buses)
 
 IF(WIN32)