Fix cmake warning

CMake Warning (dev) at libnfc/CMakeLists.txt:77 (ADD_LIBRARY):
  Policy CMP0115 is not set: Source file extensions must be explicit.  Run
  "cmake --help-policy CMP0115" for policy details.  Use the cmake_policy
  command to set the policy and suppress this warning.

  File:

    /home/rousseau/Documents/github/libnfc/libnfc/nfc.c
This warning is for project developers.  Use -Wno-dev to suppress it.

Author: LudovicRousseau

cmake/modules/LibnfcDrivers.cmake

@@ -16,62 +16,62 @@ SET(LIBNFC_DRIVER_PN53X_USB ON CACHE BOOL "Enable PN531 and PN531 USB support (D
 IF(LIBNFC_DRIVER_PCSC)
   FIND_PACKAGE(PCSC REQUIRED)
   ADD_DEFINITIONS("-DDRIVER_PCSC_ENABLED")
-  SET(DRIVERS_SOURCES ${DRIVERS_SOURCES} "drivers/pcsc")
+  SET(DRIVERS_SOURCES ${DRIVERS_SOURCES} "drivers/pcsc.c")
 ENDIF(LIBNFC_DRIVER_PCSC)
 
 IF(LIBNFC_DRIVER_ACR122_PCSC)
   FIND_PACKAGE(PCSC REQUIRED)
   ADD_DEFINITIONS("-DDRIVER_ACR122_PCSC_ENABLED")
-  SET(DRIVERS_SOURCES ${DRIVERS_SOURCES} "drivers/acr122_pcsc")
+  SET(DRIVERS_SOURCES ${DRIVERS_SOURCES} "drivers/acr122_pcsc.c")
 ENDIF(LIBNFC_DRIVER_ACR122_PCSC)
 
 IF(LIBNFC_DRIVER_ACR122_USB)
   FIND_PACKAGE(LIBUSB REQUIRED)
   ADD_DEFINITIONS("-DDRIVER_ACR122_USB_ENABLED")
-  SET(DRIVERS_SOURCES ${DRIVERS_SOURCES} "drivers/acr122_usb")
+  SET(DRIVERS_SOURCES ${DRIVERS_SOURCES} "drivers/acr122_usb.c")
 ENDIF(LIBNFC_DRIVER_ACR122_USB)
 
 IF(LIBNFC_DRIVER_ACR122S)
   ADD_DEFINITIONS("-DDRIVER_ACR122S_ENABLED")
-  SET(DRIVERS_SOURCES ${DRIVERS_SOURCES} "drivers/acr122s")
+  SET(DRIVERS_SOURCES ${DRIVERS_SOURCES} "drivers/acr122s.c")
   SET(UART_REQUIRED TRUE)
 ENDIF(LIBNFC_DRIVER_ACR122S)
 
 IF(LIBNFC_DRIVER_ARYGON)
   ADD_DEFINITIONS("-DDRIVER_ARYGON_ENABLED")
-  SET(DRIVERS_SOURCES ${DRIVERS_SOURCES} "drivers/arygon")
+  SET(DRIVERS_SOURCES ${DRIVERS_SOURCES} "drivers/arygon.c")
   SET(UART_REQUIRED TRUE)
 ENDIF(LIBNFC_DRIVER_ARYGON)
 
 IF(LIBNFC_DRIVER_PN532_I2C)
   ADD_DEFINITIONS("-DDRIVER_PN532_I2C_ENABLED")
-  SET(DRIVERS_SOURCES ${DRIVERS_SOURCES} "drivers/pn532_i2c")
+  SET(DRIVERS_SOURCES ${DRIVERS_SOURCES} "drivers/pn532_i2c.c")
   SET(I2C_REQUIRED TRUE)
 ENDIF(LIBNFC_DRIVER_PN532_I2C)
 
 IF(LIBNFC_DRIVER_PN532_SPI)
   ADD_DEFINITIONS("-DDRIVER_PN532_SPI_ENABLED")
-  SET(DRIVERS_SOURCES ${DRIVERS_SOURCES} "drivers/pn532_spi")
+  SET(DRIVERS_SOURCES ${DRIVERS_SOURCES} "drivers/pn532_spi.c")
   SET(SPI_REQUIRED TRUE)
 ENDIF(LIBNFC_DRIVER_PN532_SPI)
 
 IF(LIBNFC_DRIVER_PN532_UART)
   ADD_DEFINITIONS("-DDRIVER_PN532_UART_ENABLED")
-  SET(DRIVERS_SOURCES ${DRIVERS_SOURCES} "drivers/pn532_uart")
+  SET(DRIVERS_SOURCES ${DRIVERS_SOURCES} "drivers/pn532_uart.c")
   SET(UART_REQUIRED TRUE)
 ENDIF(LIBNFC_DRIVER_PN532_UART)
 
 IF(LIBNFC_DRIVER_PN53X_USB)
   FIND_PACKAGE(LIBUSB REQUIRED)
   ADD_DEFINITIONS("-DDRIVER_PN53X_USB_ENABLED")
-  SET(DRIVERS_SOURCES ${DRIVERS_SOURCES} "drivers/pn53x_usb")
+  SET(DRIVERS_SOURCES ${DRIVERS_SOURCES} "drivers/pn53x_usb.c")
   SET(USB_REQUIRED TRUE)
 ENDIF(LIBNFC_DRIVER_PN53X_USB)
 
 IF(LIBNFC_DRIVER_ACR122_USB)
   FIND_PACKAGE(LIBUSB REQUIRED)
   ADD_DEFINITIONS("-DDRIVER_ACR122_USB_ENABLED")
-  SET(DRIVERS_SOURCES ${DRIVERS_SOURCES} "drivers/acr122_usb")
+  SET(DRIVERS_SOURCES ${DRIVERS_SOURCES} "drivers/acr122_usb.c")
   SET(USB_REQUIRED TRUE)
 ENDIF(LIBNFC_DRIVER_ACR122_USB)
 

libnfc/CMakeLists.txt

@@ -1,6 +1,6 @@
 # Windows MinGW workarounds
 IF(WIN32)
-  SET(WINDOWS_SOURCES ../contrib/win32/stdlib)
+  SET(WINDOWS_SOURCES ../contrib/win32/stdlib.c)
   INCLUDE_DIRECTORIES(${CMAKE_CURRENT_SOURCE_DIR}/../contrib/win32)
 
   # Add in the rc for version information in the dll
@@ -11,39 +11,39 @@ IF(WIN32)
 ENDIF(WIN32)
 
 # Library's chips
-SET(CHIPS_SOURCES chips/pn53x)
+SET(CHIPS_SOURCES chips/pn53x.c)
 INCLUDE_DIRECTORIES(${CMAKE_CURRENT_SOURCE_DIR}/chips)
 
 # Library's buses
 IF(USB_REQUIRED)
-  LIST(APPEND BUSES_SOURCES buses/usbbus)
+  LIST(APPEND BUSES_SOURCES buses/usbbus.c)
 ENDIF(USB_REQUIRED)
 
 IF(UART_REQUIRED)
   IF(WIN32)
     # Windows have a special implementation for UART
-    LIST(APPEND BUSES_SOURCES ../contrib/win32/libnfc/buses/uart)
+    LIST(APPEND BUSES_SOURCES ../contrib/win32/libnfc/buses/uart.c)
   ELSE(WIN32)
-    LIST(APPEND BUSES_SOURCES buses/uart)
+    LIST(APPEND BUSES_SOURCES buses/uart.c)
   ENDIF(WIN32)
 ENDIF(UART_REQUIRED)
 
 IF(I2C_REQUIRED)
   IF(${CMAKE_SYSTEM_NAME} MATCHES "Linux")
-    LIST(APPEND BUSES_SOURCES buses/i2c)
+    LIST(APPEND BUSES_SOURCES buses/i2c.c)
   ELSE(${CMAKE_SYSTEM_NAME} MATCHES "Linux")
     # Only Linux is supported at the moment
-    #LIST(APPEND BUSES_SOURCES ../contrib/win32/libnfc/buses/i2c)
+    #LIST(APPEND BUSES_SOURCES ../contrib/win32/libnfc/buses/i2c.c)
     MESSAGE( FATAL_ERROR "I2C is only (yet) supported in Linux!" )
   ENDIF(${CMAKE_SYSTEM_NAME} MATCHES "Linux")
 ENDIF(I2C_REQUIRED)
 
 IF(SPI_REQUIRED)
   IF(${CMAKE_SYSTEM_NAME} MATCHES "Linux")
-    LIST(APPEND BUSES_SOURCES buses/spi)
+    LIST(APPEND BUSES_SOURCES buses/spi.c)
   ELSE(${CMAKE_SYSTEM_NAME} MATCHES "Linux")
     # Only Linux is supported at the moment
-    #LIST(APPEND BUSES_SOURCES ../contrib/win32/libnfc/buses/spi)
+    #LIST(APPEND BUSES_SOURCES ../contrib/win32/libnfc/buses/spi.c)
     MESSAGE( FATAL_ERROR "SPI is only (yet) supported in Linux!" )
   ENDIF(${CMAKE_SYSTEM_NAME} MATCHES "Linux")
 ENDIF(SPI_REQUIRED)
@@ -61,17 +61,17 @@ IF(LIBUSB_FOUND)
 ENDIF(LIBUSB_FOUND)
 
 # Library
-SET(LIBRARY_SOURCES nfc nfc-device nfc-emulation nfc-internal conf iso14443-subr mirror-subr target-subr ${DRIVERS_SOURCES} ${BUSES_SOURCES} ${CHIPS_SOURCES} ${WINDOWS_SOURCES})
+SET(LIBRARY_SOURCES nfc.c nfc-device.c nfc-emulation.c nfc-internal.c conf.c iso14443-subr.c mirror-subr.c target-subr.c ${DRIVERS_SOURCES} ${BUSES_SOURCES} ${CHIPS_SOURCES} ${WINDOWS_SOURCES})
 INCLUDE_DIRECTORIES(${CMAKE_CURRENT_SOURCE_DIR})
 
 IF(LIBNFC_LOG)
   IF(WIN32)
     IF(MINGW)
       SET(CMAKE_C_FLAGS "-fgnu89-inline ${CMAKE_C_FLAGS}")
     ENDIF(MINGW)
-    LIST(APPEND LIBRARY_SOURCES log ../contrib/win32/libnfc/log-internal)
+    LIST(APPEND LIBRARY_SOURCES log.c ../contrib/win32/libnfc/log-internal.c)
   ELSE(WIN32)
-    LIST(APPEND LIBRARY_SOURCES log log-internal)
+    LIST(APPEND LIBRARY_SOURCES log.c log-internal.c)
   ENDIF(WIN32)
 ENDIF(LIBNFC_LOG)
 ADD_LIBRARY(nfc SHARED ${LIBRARY_SOURCES})