Use atomic operations to check whether to write to the signal pipe.

[meshlink] / configure.ac

diff --git a/configure.ac b/configure.ac
index cfef2a11362b7b411ad9face45cb0a1f477969d4..f0617f3206de57c1f8ccb6de7e785a2f8207990c 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -54,6 +54,8 @@ if test -d /sw/lib ; then
   LIBS="$LIBS -L/sw/lib"
 fi
 
+AX_CHECK_COMPILE_FLAG([-std=c11], [CPPFLAGS="-std=c11"])
+
 dnl Compiler hardening flags
 dnl No -fstack-protector-all because it doesn't work on all platforms or architectures.