--- Makefile.orig	2022-04-15 16:23:26.973567404 +0000
+++ Makefile	2022-04-15 16:23:49.316902047 +0000
@@ -4,8 +4,8 @@
 REPO = git://github.com/cython/cython.git
 VERSION?=$(shell sed -ne 's|^__version__\s*=\s*"\([^"]*\)".*|\1|p' Cython/Shadow.py)
 
-MANYLINUX_CFLAGS=-O3 -g0 -mtune=generic -pipe -fPIC
-MANYLINUX_LDFLAGS=
+MANYLINUX_CFLAGS=-Os -flto -mtune=generic -pipe -fPIC
+MANYLINUX_LDFLAGS=-Wl,-O1
 MANYLINUX_IMAGES= \
 	manylinux1_x86_64 \
 	manylinux1_i686 \
