build: Add 'std=c++11' cpp compiler flag

Building the current master branch with g++ 5.4.0-6 fails with:
./src/libcamera/include/log.h:25:34:
   error: defaulted and deleted functions only available with -std=c++11 \
   or -std=gnu++11 [-Werror]
   LogMessage(const LogMessage&) = delete;

Fix this by adding the 'std=c++11' compiler argument for to the list of
cpp build flags.

Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>

0 files changed, 0 insertions, 0 deletions