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-rw-r--r--source4/lib/tdb/configure.in1
1 files changed, 1 insertions, 0 deletions
diff --git a/source4/lib/tdb/configure.in b/source4/lib/tdb/configure.in
index 9ff8e23bf1..68ea39c140 100644
--- a/source4/lib/tdb/configure.in
+++ b/source4/lib/tdb/configure.in
@@ -4,5 +4,6 @@ AC_INIT(include/tdb.h)
AC_CONFIG_HEADER(include/tdbconfig.h)
AC_PROG_CC
AC_FUNC_MMAP
+AC_DEFINE([_GNU_SOURCE],[],[Pull in GNU extensions])
sinclude(config.m4)
AC_OUTPUT(Makefile tdb.pc)