X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvcl%2FCMakeLists.txt;h=610b422d11326599f98285cfbf908f956b95c01d;hb=ae036d3b7d911788a9ead084bf89dd72c763d9f1;hp=e6d8f98ffed9492e0372c664e4b69b2ed0836873;hpb=935ce75cb060da34991e6b02bec5680445f85323;p=vpp.git

diff --git a/src/vcl/CMakeLists.txt b/src/vcl/CMakeLists.txt
index e6d8f98ffed..610b422d113 100644
--- a/src/vcl/CMakeLists.txt
+++ b/src/vcl/CMakeLists.txt
@@ -30,6 +30,11 @@ add_vpp_library(vppcom
   api_headers
 )
 
+option(LDP_HAS_GNU_SOURCE "LDP configured to use _GNU_SOURCE" ON)
+if (LDP_HAS_GNU_SOURCE)
+  add_compile_definitions(HAVE_GNU_SOURCE)
+endif(LDP_HAS_GNU_SOURCE)
+
 add_vpp_library(vcl_ldpreload
   SOURCES
   ldp_socket_wrapper.c