#!/usr/bin/make -f
export DH_VERBOSE = 1
export deb_build_dir = /tmp/deb_build
export name = occlum-toolchains-glibc
export buildroot := $(deb_build_dir)/$(name)/debian/$(name)

export tmp_build_dir = $(deb_build_dir)/$(name)/tmp_build
export src_dir = $(tmp_build_dir)/glibc
export install_dir = $(buildroot)/opt/occlum/glibc

SHELL = /bin/bash

export DEB_BUILD_MAINT_OPTIONS=hardening=+pie,-fortify

# Users can pass "-j$(nproc)" by specifying this env.
# This is not enabled by default because under certain scenarios,
# make will use too many jobs and gcc will be killed because out
# of memory.
BUILD_OPTIONS +=

.ONESHELL: prepare_glibc override_dh_install

%:
	dh $@

# All rules executed in one shell
prepare_glibc:
	rm -rf $(tmp_build_dir)
	rm -rf $(install_dir)
	mkdir -p $(src_dir)
	cd $(src_dir)
	git clone -b occlum-glibc-2.31 https://github.com/occlum/glibc .


override_dh_auto_build: prepare_glibc
	mkdir -p $(tmp_build_dir)/build
	cd $(tmp_build_dir)/build
	unset LD_LIBRARY_PATH
	${src_dir}/configure \
		--prefix=${install_dir} --with-tls --without-selinux \
		--disable-nscd
	make


# We create symlinks in /usr/local
override_dh_usrlocal:
	echo "Skip ..."

override_dh_fixperms:
	dh_fixperms

override_dh_install:
	cd $(tmp_build_dir)/build
	make install

clean:
	dh_clean
	rm -f $(buildroot)

override_dh_shlibdeps:
	echo "skip ..."