Default CSTD to c99, no default for CXXSTD, but if provided it will be used. Add required gnu99 flags to projects using gnu styles.
README
This example program sends some characters on USART2 on [Lisa/M 2.0 board](see http://paparazzi.enac.fr/wiki/LisaM for details).
The terminal settings for the receiving device/PC are 38400 8n1.
The sending is done in a blocking way in the code, see the usart_irq example for a more elaborate USART example.