#! /usr/bin/make -f
# -*- makefile -*-
# debian/rules file for GNU libc.
# Copyright 1998, 1999 by Joel Klecker <espy@debian.org>
# Copyright 2000 Ben Collins <bcollins@debian.org>
# Copyright 2003 Jeff Bailey <jbailey@debian.org>
# This Makefile is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.

# What are the phases to building glibc?

# Unpack main tarball
# Do any necessary overlays
# Apply patches
# Determine how many builds there are to do.  For Each build:

#  Create build directory
#  Configure
#  Build
#  Test as desired
#  Install to package directories

# Run debian magic to build packages.

# Things you may need to customise:

# These are done as absolute paths so that in the case of filesystem size
# limitations, they can be overridden and spread all over.
build-tree := build-tree
stamp := $(CURDIR)/stamp-dir/
DUMMY := $(shell mkdir -p $(stamp))

# Beyond here you shouldn't need to customise anything:
export SHELL          = /bin/bash -e

DEB_HOST_ARCH         ?= $(shell dpkg-architecture -qDEB_HOST_ARCH)
DEB_HOST_ARCH_ENDIAN  ?= $(shell dpkg-architecture -qDEB_HOST_ARCH_ENDIAN)
DEB_HOST_ARCH_OS      ?= $(shell dpkg-architecture -qDEB_HOST_ARCH_OS)
DEB_HOST_GNU_TYPE     ?= $(shell dpkg-architecture -qDEB_HOST_GNU_TYPE)
DEB_HOST_MULTIARCH    ?= $(shell dpkg-architecture -qDEB_HOST_MULTIARCH)
DEB_BUILD_ARCH        ?= $(shell dpkg-architecture -qDEB_BUILD_ARCH)
DEB_BUILD_ARCH_BITS   ?= $(shell dpkg-architecture -qDEB_BUILD_ARCH_BITS)
DEB_BUILD_GNU_TYPE    ?= $(shell dpkg-architecture -qDEB_BUILD_GNU_TYPE)

DEB_SOURCE_PACKAGE := $(strip $(shell egrep '^Source: ' debian/control | cut -f 2 -d ':'))

DEB_VERSION := $(shell dpkg-parsechangelog | egrep '^Version:' | cut -f 2 -d ' ')
GLIBC_VERSION = $(shell echo $(DEB_VERSION) | sed -e 's/.*://' -e 's/[+-].*//')

SOURCE_DATE_EPOCH ?= $(shell dpkg-parsechangelog -STimestamp)

# The minimum package version with which these packages are compatible.
shlib_dep_ver = $(GLIBC_VERSION)
shlib_dep = $(libc) (>= $(shlib_dep_ver))

DEB_BUILDDIR ?= $(build-tree)/$(DEB_HOST_ARCH)-$(curpass)
DEB_BUILDDIRLIBC ?= $(build-tree)/$(DEB_HOST_ARCH)-libc

GLIBC_SOURCES = $(filter-out debian $(shell basename $(stamp)) $(build-tree), $(wildcard *))
		 
# Support multiple makes at once based on number of processors
ifneq (,$(filter parallel=%,$(DEB_BUILD_OPTIONS)))
NJOBS := -j $(patsubst parallel=%,%,$(filter parallel=%,$(DEB_BUILD_OPTIONS)))
endif

# use the package settings, not the settings from the environment
define unsetenv
  unexport $(1)
  $(1) =
endef
$(foreach v, CPPFLAGS CFLAGS CXXFLAGS LDFLAGS, $(if $(filter environment,$(origin $(v))),$(eval $(call unsetenv, $(v)))))

# Default setup
GLIBC_PASSES ?= libc

prefix=/usr
bindir=$(prefix)/bin
datadir=$(prefix)/share
complocaledir=$(prefix)/lib/locale
sysconfdir=/etc
libexecdir=$(prefix)/lib
rootsbindir=/sbin
includedir=$(prefix)/include
docdir=$(prefix)/share/doc
mandir=$(prefix)/share/man
sbindir=$(prefix)/sbin
vardbdir=/var/lib/misc
rtlddir=/lib
slibdir=/lib/$(DEB_HOST_MULTIARCH)
libdir=/usr/lib/$(DEB_HOST_MULTIARCH)
mvec = no


BASE_CC = gcc
BASE_CXX = g++
BASE_MIG = mig
DEB_GCC_VERSION ?= -8

RUN_TESTSUITE = yes
TIMEOUTFACTOR = 25

# Set cross and native compiler names, including version.
CC     = $(DEB_HOST_GNU_TYPE)-$(BASE_CC)$(DEB_GCC_VERSION) -no-pie -fno-PIE
CXX    = $(DEB_HOST_GNU_TYPE)-$(BASE_CXX)$(DEB_GCC_VERSION) -no-pie -fno-PIE
MIG    = $(DEB_HOST_GNU_TYPE)-$(BASE_MIG)
BUILD_CC = $(DEB_BUILD_GNU_TYPE)-$(BASE_CC)
BUILD_CXX = $(DEB_BUILD_GNU_TYPE)-$(BASE_CXX)

BUILD_CFLAGS = -O2 -g
HOST_CFLAGS = -pipe -O2 -g $(call xx,extra_cflags)

# 32-bit MIPS builders have a 2GB memory space. This is not enough to
# build test-tgmath3.o with GCC, unless tweaking the garbage collector.
ifeq ($(findstring mips,$(DEB_BUILD_ARCH))-$(DEB_BUILD_ARCH_BITS), mips-32)
  CC += --param ggc-min-expand=10
endif

configure_target := $(DEB_HOST_GNU_TYPE)

# Normally we'll just use this for --build.  If the architecture requires
# that build daemons be able to run a particular optimized library, then
# they can set the --build to match --host for that optimized build.
# Among other things this lets tests run.
configure_build := $(DEB_BUILD_GNU_TYPE)

# Which build pass are we on?
curpass = $(filter-out %_,$(subst _,_ ,$@))

ifneq ($(filter stage1,$(DEB_BUILD_PROFILES)),)
  DEB_ARCH_REGULAR_PACKAGES = $(libc)-dev
  DEB_INDEP_REGULAR_PACKAGES = 
  DEB_UDEB_PACKAGES = 
  ifeq ($(filter nocheck,$(DEB_BUILD_OPTIONS)),)
    DEB_BUILD_OPTIONS+=nocheck
  endif
else
  DEB_ARCH_REGULAR_PACKAGES = $(libc) $(libc)-dev $(libc)-dbg $(libc)-pic libc-bin libc-dev-bin multiarch-support
  DEB_INDEP_REGULAR_PACKAGES = glibc-doc glibc-source libc-l10n locales
  DEB_UDEB_PACKAGES = $(libc)-udeb
  ## Locales can only be pre-generated during native compiles
  ifeq ($(DEB_HOST_ARCH),$(DEB_BUILD_ARCH))
    DEB_ARCH_REGULAR_PACKAGES += locales-all
  endif
endif

# Generic kernel version check
define kernel_check
(if [ $(CURRENT_KERNEL_VERSION) -lt $(1) ]; then \
  false; \
fi)
endef

# Include libidn for both NPTL and FBTL targets.
standard-add-ons = libidn,

# Pull in all the per-arch magic!

-include debian/sysdeps/$(DEB_HOST_ARCH_OS).mk
-include debian/sysdeps/$(DEB_HOST_ARCH).mk

ifneq ($(filter stage1,$(DEB_BUILD_PROFILES)),)
DEB_ARCH_REGULAR_PACKAGES += $(foreach p,$(DEB_ARCH_MULTILIB_PACKAGES), $(if $(findstring -dev,$(p)), $(p)))
else
DEB_ARCH_REGULAR_PACKAGES += $(DEB_ARCH_MULTILIB_PACKAGES)
endif

# Don't run dh_strip on this package
NOSTRIP_$(libc)-dbg = 1

# Put the debug files from these packages in $(libc)-dbg
DEBUG_$(libc) = 1
DEBUG_libc6-xen = 1
DEBUG_libc6.1-alphaev67 = 1

ifeq ($(filter stage1,$(DEB_BUILD_PROFILES)),)
  ifeq ($(threads),yes)
  DEB_ARCH_REGULAR_PACKAGES += nscd
  endif
endif

# And now the rules...
include debian/rules.d/*.mk

clean:: unpatch
	rm -rf $(patsubst %,debian/tmp-%,$(GLIBC_PASSES))
	rm -rf $(build-tree)
	rm -rf $(stamp)
	rm -rf debian/include
	rm -f debian/control.in/libc0.1 debian/control.in/libc0.3 \
		debian/control.in/libc6 debian/control.in/libc6.1 \
		debian/*.preinst.*

# Required Debian targets
build-arch: $(stamp)info \
	$(patsubst %,$(stamp)build_%,$(GLIBC_PASSES)) \
	$(patsubst %,$(stamp)check_%,$(GLIBC_PASSES))
ifeq ($(filter stage1,$(DEB_BUILD_PROFILES)),)
build-arch: $(stamp)build_C.UTF-8 \
	$(stamp)build_locales-all
endif

build-indep: $(stamp)source

build: build-arch build-indep


binary-indep: build-indep testroot debian/control $(build-tree) \
	$(patsubst %,$(stamp)binaryinst_%,$(DEB_INDEP_REGULAR_PACKAGES))

binary-arch: build-arch testroot debian/control $(build-tree) \
	$(patsubst %,$(stamp)binaryinst_%,$(DEB_ARCH_REGULAR_PACKAGES)) \
	$(patsubst %,$(stamp)binaryinst_%,$(DEB_UDEB_PACKAGES))

binary: binary-indep binary-arch

testroot:
	dh_testroot