From 7221107c117781b0aaa61366c7fdd6c464456901 Mon Sep 17 00:00:00 2001
From: chrox <chrox.huang@gmail.com>
Date: Mon, 19 Jan 2015 21:28:39 +0800
Subject: [PATCH] disable eventfd to make libzmq working on GLIBC_2.4

---
 Makefile      | 1 +
 Makefile.defs | 2 ++
 2 files changed, 3 insertions(+)

diff --git a/Makefile b/Makefile
index 8d584c941..2a7bfc858 100644
--- a/Makefile
+++ b/Makefile
@@ -430,6 +430,7 @@ $(ZMQ_LIB):
 		LDFLAGS="$(LDFLAGS)" \
 		libzmq_have_xmlto=no libzmq_have_asciidoc=no \
 			../configure -q --prefix=$(CURDIR)/$(ZMQ_DIR)/build \
+				$(if $(POCKETBOOK),--disable-eventfd,) \
 				--disable-static --enable-shared \
 				--host=$(CHOST)
 	-$(MAKE) -j$(PROCESSORS) -C $(ZMQ_DIR)/build --silent uninstall
diff --git a/Makefile.defs b/Makefile.defs
index da8b6ea66..e8e15f945 100644
--- a/Makefile.defs
+++ b/Makefile.defs
@@ -114,6 +114,8 @@ BASE_CFLAGS:=-O2 -ffast-math -pipe -fomit-frame-pointer
 ## no-use-cxa-atexit is to get rid of cxa_atexit
 #
 # FIXME: If we cared, we'd probably need to do something to convince libzmq not to enable support for eventfd [@GLIBC_2.7]
+# FIXED: To cross compile libzmq for GLIBC_2.4 you need to configure with the option '--disable-eventfd'
+#
 MG2K12_COMPAT_CFLAGS:=-fno-stack-protector -U_FORTIFY_SOURCE -D_GNU_SOURCE -fno-finite-math-only
 MG2K12_COMPAT_CXXFLAGS:=-fno-use-cxa-atexit