commit abc63b38e2ec8ebbbeb14c5b379362742cd088a0
author Lu Gong <lu.gong@intel.com> Wed Jan 10 09:43:14 2018 +0800
committer Tadeusz Struk <tadeusz.struk@intel.com> Wed Jan 10 10:19:48 2018 -0800
tree 24570aac1a906036d74eff8f98593c55fc6d9b57
parent 5c3a67da97b1927f879c047f66c393090785f0ea

build: Have supported glibc versions before 2.19.

When using glibc < 2.19, the use of endian.h requires the
old macro _BSD_SOURCE instead of the new one _DEFAULT_SOURCE.

configure.ac

diff --git a/configure.ac b/configure.ac
index 83f8cae..30e155c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -57,6 +57,7 @@
 AX_ADD_COMPILER_FLAG([-fPIC])
 
 AX_ADD_PREPROC_FLAG([-D_DEFAULT_SOURCE])
+AX_ADD_PREPROC_FLAG([-D_BSD_SOURCE])
 
 AC_ARG_WITH([loglevel],
             [AS_HELP_STRING([--with-loglevel={none,error,warning,info,debug,trace}],