Solaris _XOPEN_SOURCE updates

bk: 47ffe935JoaNRxifuiw3RTDCNH7r_w

diff --git a/configure.ac b/configure.ac
index afe47444363ed32869892d5ff36892568eff318a..4c6ba13b0bbc9c7c21957fb79f550ad05cf24147 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -60,7 +60,11 @@ case "$host" in
     LIBS="$LIBS -lcurses"
     ;;
  *-*-solaris*)
-    CPPFLAGS="$CPPFLAGS -D_XOPEN_SOURCE=500 -D__EXTENSIONS__"
+    # see "man standards".
+    # -D_XOPEN_SOURCE=500 is probably OK for c89 and before
+    # -D_XOPEN_SOURCE=600 seems OK for c99
+    #CPPFLAGS="$CPPFLAGS -D_XOPEN_SOURCE=500 -D__EXTENSIONS__"
+    CPPFLAGS="$CPPFLAGS -D__EXTENSIONS__"
     libxnet=-lxnet
     ;;
 esac