Do not call posix_fallocate() on uClibc uClibc does not implement posix_fallocate(), and posix_fallocate() is mostly only an hint to the kernel that we will need such or such amount of space inside a file. So we just don't call posix_fallocate() when building against uClibc. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> [Peter: add #include <features.h> --- formats/ctf/ctf.c | 3 +++ 1 file changed, 3 insertions(+) Index: lttng-babeltrace-0.8/formats/ctf/ctf.c =================================================================== --- lttng-babeltrace-0.8.orig/formats/ctf/ctf.c +++ lttng-babeltrace-0.8/formats/ctf/ctf.c @@ -32,6 +32,7 @@ #include <sys/stat.h> #include <fcntl.h> #include <dirent.h> +#include <features.h> #include <glib.h> #include <unistd.h> #include <stdlib.h> @@ -384,9 +385,11 @@ } pos->content_size = -1U; /* Unknown at this point */ pos->packet_size = WRITE_PACKET_LEN; +#ifndef __UCLIBC__ off = posix_fallocate(pos->fd, pos->mmap_offset, pos->packet_size / CHAR_BIT); assert(off >= 0); +#endif pos->offset = 0; } else { read_next_packet: