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-rw-r--r--lib/ccan/libccan.m42
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/ccan/libccan.m4 b/lib/ccan/libccan.m4
index cda1353de6..c573215070 100644
--- a/lib/ccan/libccan.m4
+++ b/lib/ccan/libccan.m4
@@ -15,7 +15,7 @@ CCAN_OBJ="$ccandir/hash/hash.o $ccandir/htable/htable.o $ccandir/ilog/ilog.o $cc
AC_SUBST(CCAN_OBJ)
# Preferred method for including ccan modules is #include <ccan/module/...>.
-CCAN_CFLAGS="-I$ccandir/.."
+CCAN_CFLAGS="-I$ccandir/.. -DHAVE_CCAN"
AC_SUBST(CCAN_CFLAGS)
# All the configuration checks. Regrettably, the __attribute__ checks will