diff --git a/packages/compress/zlib/build b/packages/compress/zlib/build
index ba821d844a..3e6facafd4 100755
--- a/packages/compress/zlib/build
+++ b/packages/compress/zlib/build
@@ -4,6 +4,11 @@
 
 $SCRIPTS/build toolchain
 
+# zlib 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
 ./configure --prefix=/usr \
             --libdir=/usr/lib \