diff options
Diffstat (limited to 'utility.c')
| -rw-r--r-- | utility.c | 15 |
1 files changed, 11 insertions, 4 deletions
@@ -36,12 +36,16 @@ #include <unistd.h> #include <ctype.h> -#ifdef BB_MTAB -const char mtab_file[] = "/etc/mtab"; -#else #if defined BB_MOUNT || defined BB_UMOUNT || defined BB_DF +# if defined BB_FEATURE_USE_PROCFS const char mtab_file[] = "/proc/mounts"; -#endif +# else +# if defined BB_MTAB +const char mtab_file[] = "/etc/mtab"; +# else +# error With (BB_MOUNT||BB_UMOUNT||BB_DF) defined, you must define either BB_MTAB or BB_FEATURE_USE_PROCFS +# endif +# endif #endif @@ -56,6 +60,9 @@ extern void usage(const char *usage) #if defined (BB_INIT) || defined (BB_PS) +#if ! defined BB_FEATURE_USE_PROCFS +#error Sorry, I depend on the /proc filesystem right now. +#endif /* Returns kernel version encoded as major*65536 + minor*256 + patch, * so, for example, to check if the kernel is greater than 2.2.11: * if (get_kernel_revision() <= 2*65536+2*256+11) { <stuff> } |