X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=configure.ac;h=b1af16f08727e9bea3e339a083c224f051f741c7;hb=ffbfc5c76ba8100d21d0141478a6c0d761ecfb2f;hp=4d643e2ba2ae0b89fe92f99f52a1c354d7733b12;hpb=0a24247de8f66911d062ec0e1ec8dfb7948bbf5a;p=libserialport.git

diff --git a/configure.ac b/configure.ac
index 4d643e2..b1af16f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -129,6 +129,10 @@ AC_CHECK_TYPES([struct serial_struct],,, [[#include <linux/serial.h>]])
 # Check for realpath().
 AC_CHECK_FUNC([realpath], [AC_DEFINE(HAVE_REALPATH, 1, [realpath is available.])], [])
 
+# Check for flock().
+AC_CHECK_HEADER([sys/file.h], [AC_DEFINE(HAVE_SYS_FILE_H, 1, [sys/file.h is available.])], [])
+AC_CHECK_FUNC([flock], [AC_DEFINE(HAVE_FLOCK, 1, [flock is available.])], [])
+
 # Check for clock_gettime().
 AC_CHECK_FUNC([clock_gettime],
 	[AC_DEFINE(HAVE_CLOCK_GETTIME, 1, [clock_gettime is available.])], [])