diff options
| author | rmanfredi <rmanfredi@2592e710-e01b-42a5-8df0-11608a6cc53d> | 2010-11-27 11:55:39 +0000 |
|---|---|---|
| committer | rmanfredi <rmanfredi@2592e710-e01b-42a5-8df0-11608a6cc53d> | 2010-11-27 11:55:39 +0000 |
| commit | 13158f86e3904284dce3dad36b64f07414459551 (patch) | |
| tree | 12cc7b8d1b808c8c3505bb44cf067bd9ab98b1e6 /mcon/U/d_flock.U | |
| parent | 194d1db97053d853d5f81c362c461d71c05ea80e (diff) | |
Applied mega patch from Christian Biere to greatly improve feature detection
and make a huge step towards better support for cross-compiling.
git-svn-id: svn://svn.code.sf.net/p/dist/code/trunk/dist@34 2592e710-e01b-42a5-8df0-11608a6cc53d
Diffstat (limited to 'mcon/U/d_flock.U')
| -rw-r--r-- | mcon/U/d_flock.U | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/mcon/U/d_flock.U b/mcon/U/d_flock.U index c3252e3..8bed0a8 100644 --- a/mcon/U/d_flock.U +++ b/mcon/U/d_flock.U @@ -12,7 +12,7 @@ ?RCS: Revision 3.0 1993/08/18 12:06:05 ram ?RCS: Baseline for dist 3.0 netwide release. ?RCS: -?MAKE:d_flock: Inlibc +?MAKE:d_flock: Trylink cat ?MAKE: -pick add $@ %< ?S:d_flock: ?S: This variable conditionally defines HAS_FLOCK if flock() is @@ -26,6 +26,18 @@ ?H:. ?LINT:set d_flock : see if flock exists -set flock d_flock -eval $inlibc +$cat >try.c <<EOC +#include <sys/file.h> +#include <fcntl.h> +int main(void) +{ + static int fd, ret; + ret |= flock(fd, LOCK_SH); + ret |= flock(fd, LOCK_EX); + ret |= flock(fd, LOCK_UN); + return ret ? 0 : 1; +} +EOC +set d_flock +eval $trylink |