--- 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 \