diff --git a/packages/sysutils/remote/irserver/build b/packages/sysutils/remote/irserver/build
index e17de1798b..dd4c7225e4 100755
--- a/packages/sysutils/remote/irserver/build
+++ b/packages/sysutils/remote/irserver/build
@@ -4,6 +4,11 @@
 
 $SCRIPTS/build toolchain
 
+# irserver fails to compile with GCC 4.5.0's link time optimization.
+  CFLAGS=`echo $CFLAGS | sed -e "s|-flto||" -e "s|-fuse-linker-plugin||" -e "s|-fwhole-program||"`
+  CXXFLAGS=`echo $CXXFLAGS | sed -e "s|-flto||" -e "s|-fuse-linker-plugin||" -e "s|-fwhole-program||"`
+  LDFLAGS=`echo $LDFLAGS | sed -e "s|-flto||" -e "s|-fuse-linker-plugin||" -e "s|-fwhole-program||"`
+
 cd $PKG_BUILD
 
 [ $TARGET_ARCH = i386 ] && make CC=$TARGET_CC irserver