#! /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))

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

# The version of the C library that locales needs for its format.
include debian/locales-depver

# Beyond here you shouldn't need to customise anything:

SHELL                 ?= =/bin/sh -e
DEB_HOST_ARCH         ?= $(shell dpkg-architecture -qDEB_HOST_ARCH)
DEB_HOST_GNU_CPU      ?= $(shell dpkg-architecture -qDEB_HOST_GNU_CPU)
DEB_HOST_GNU_TYPE     ?= $(shell dpkg-architecture -qDEB_HOST_GNU_TYPE)
DEB_HOST_GNU_SYSTEM   ?= $(shell dpkg-architecture -qDEB_HOST_GNU_SYSTEM)
DEB_HOST_ARCH_OS      ?= $(shell dpkg-architecture -qDEB_HOST_ARCH_OS)
DEB_BUILD_ARCH        ?= $(shell dpkg-architecture -qDEB_BUILD_ARCH)
DEB_BUILD_GNU_CPU     ?= $(shell dpkg-architecture -qDEB_BUILD_GNU_CPU)
DEB_BUILD_GNU_TYPE    ?= $(shell dpkg-architecture -qDEB_BUILD_GNU_TYPE)
DEB_BUILD_GNU_SYSTEM  ?= $(shell dpkg-architecture -qDEB_BUILD_GNU_SYSTEM)

DEB_HOST_GNU_CPU_ALT  ?=
DEB_HOST_GNU_TYPE_ALT ?=

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

DEB_VERSION := $(shell dpkg-parsechangelog | egrep '^Version:' | cut -f 2 -d ' ')

DEB_TARBALL ?= $(shell ls glibc-[0-9.]*.tar.*)

DEB_SRCDIR ?= $(shell ls -d $(build-tree)/glibc-*)
DEB_BUILDDIR ?= $(build-tree)/$(DEB_HOST_ARCH)-$(curpass)

# The kernel uses different CPU appreviations (uname output) than the GNU
# tools do (config.sub).  Map them.
KERNEL_HOST_CPU := $(subst powerpc,ppc,$(DEB_HOST_GNU_CPU))

# Support multiple makes at once based on number of processors
# Common wisdom says parallel make can be up to 2n+1.
# Should we do that to get faster builds?
NJOBS:=$(shell getconf _NPROCESSORS_ONLN 2>/dev/null || echo 1)
ifeq ($(NJOBS),-1)
 NJOBS:=1
endif

ifeq ($(NJOBS),0)
 NJOBS=1
endif

# We can override its value by SETNJOBS environment variable.
ifdef SETNJOBS
 NJOBS:=$(SETNJOBS)
endif

# Default setup
GLIBC_PASSES ?= libc

prefix=/usr
bindir=$(prefix)/bin
datadir=$(prefix)/share
includedir=$(prefix)/include
infodir=$(prefix)/share/info
docdir=$(prefix)/share/doc
mandir=$(prefix)/share/man
sbindir=$(prefix)/sbin
libexecdir=$(prefix)/lib

BUILD_CC = gcc-4.1

RUN_TESTSUITE = yes

# Set CC for cross-compiling
ifneq ($(DEB_HOST_ARCH),$(DEB_BUILD_ARCH))
CC     = $(DEB_HOST_GNU_TYPE)-gcc
else
CC     = $(BUILD_CC)
endif

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

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)

ifneq ($(NO_LOG),yes)
log_build   = $(CURDIR)/log-build-$(call xx,configure_target)-$(curpass)
log_test    = $(CURDIR)/log-test-$(call xx,configure_target)-$(curpass)
else
log_build   := /dev/tty
log_test    := /dev/tty
endif

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

DEB_ARCH_REGULAR_PACKAGES = $(libc) $(libc)-dev $(libc)-dbg $(libc)-prof $(libc)-pic locales-all
DEB_INDEP_REGULAR_PACKAGES = glibc-doc locales
DEB_UDEB_PACKAGES = $(libc)-udeb libnss-dns-udeb libnss-files-udeb

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

# Include libidn for both NPTL and LinuxThreads 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

include debian/sysdeps/depflags.mk

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

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

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

clean:: debhelper-clean
	rm -rf $(patsubst %,debian/tmp-%,$(GLIBC_PASSES))
	rm -rf $(build-tree)
	rm -rf $(stamp)
	rm -f log-*
	rm -rf debian/include

# Required Debian targets
binary-indep: build testroot debian/control $(build-tree) \
	$(patsubst %,$(stamp)install_%,$(GLIBC_PASSES)) \
	$(patsubst %,$(stamp)binaryinst_%,$(DEB_INDEP_REGULAR_PACKAGES))
# NOTE: Putting install_ stamps before binaryinst_ stamps in the list is the
# wrong way to represent dependencies.  Fix this.
binary-arch: build testroot debian/control $(build-tree) \
	$(patsubst %,$(stamp)install_%,$(GLIBC_PASSES)) \
	$(patsubst %,$(stamp)binaryinst_%,$(DEB_ARCH_REGULAR_PACKAGES)) \
	$(patsubst %,$(stamp)binaryinst_%,$(DEB_UDEB_PACKAGES))

binary: binary-indep binary-arch

build:	$(patsubst %,$(stamp)build_%,$(GLIBC_PASSES)) \
	$(patsubst %,$(stamp)check_%,$(GLIBC_PASSES))

testroot:
	dh_testroot