[alsa-devel] [PATCH alsa-lib 3/3] Define _GNU_SOURCE so that <fcntl.h> gives O_CLOEXEC

From: Rémi Denis-Courmont remi@remlab.net

This enables thread-safe close-on-exec file descriptor flag setting if the underlying kernel supports it.

Signed-off-by: Rémi Denis-Courmont remi@remlab.net --- configure.in | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/configure.in b/configure.in index a455de1..cc8950f 100644 --- a/configure.in +++ b/configure.in @@ -38,6 +38,8 @@ then AC_MSG_RESULT($CC) fi +CFLAGS="$CFLAGS -D_GNU_SOURCE" +

AC_PROG_CC AC_PROG_CPP