/usr/lib/gcc/arm-none-eabi/4.8/plugin/include/bversion.h is in gcc-arm-none-eabi 4.8.4-1+11-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 | #define BUILDING_GCC_MAJOR 4
#define BUILDING_GCC_MINOR 8
#define BUILDING_GCC_PATCHLEVEL 4
#define BUILDING_GCC_VERSION (BUILDING_GCC_MAJOR * 1000 + BUILDING_GCC_MINOR)
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