1 files changed, 2 insertions, 0 deletions

diff --git a/meta-networking/recipes-support/libesmtp/libesmtp_1.1.0.bb b/meta-networking/recipes-support/libesmtp/libesmtp_1.1.0.bb
index bf1a12d48f..164c8c2612 100644
--- a/meta-networking/recipes-support/libesmtp/libesmtp_1.1.0.bb
+++ b/meta-networking/recipes-support/libesmtp/libesmtp_1.1.0.bb
@@ -30,5 +30,7 @@ EXTRA_OEMESON = " \
     -Dntlm=disabled \
 "
 
+CFLAGS += "-D_GNU_SOURCE"
+
 FILES:${PN} = "${libdir}/lib*${SOLIBS} \
                ${libdir}/esmtp-plugins-6.2.0/*${SOLIBSDEV}"