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raw-posix: Fix build without posix_fallocate()

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Check for the presence of posix_fallocate() in configure and only
compile in support for PREALLOC_MODE_FALLOC when it's there.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Kevin Wolf 2014-09-29 17:12:59 +02:00 • committed by Peter Maydell
parent 0ebcc56453
commit ed9114356b
2 changed files with 32 additions and 4 deletions
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18
configure vendored
View file

@ -3308,6 +3308,21 @@ if compile_prog "" "" ; then
fallocate_punch_hole=yes
fi
# check for posix_fallocate
posix_fallocate=no
cat > $TMPC << EOF
#include <fcntl.h>
int main(void)
{
posix_fallocate(0, 0, 0);
return 0;
}
EOF
if compile_prog "" "" ; then
posix_fallocate=yes
fi
# check for sync_file_range
sync_file_range=no
cat > $TMPC << EOF
@ -4522,6 +4537,9 @@ fi
if test "$fallocate_punch_hole" = "yes" ; then
echo "CONFIG_FALLOCATE_PUNCH_HOLE=y" >> $config_host_mak
fi
if test "$posix_fallocate" = "yes" ; then
echo "CONFIG_POSIX_FALLOCATE=y" >> $config_host_mak
fi
if test "$sync_file_range" = "yes" ; then
echo "CONFIG_SYNC_FILE_RANGE=y" >> $config_host_mak
fi