ref: 7aa20102160d9b95f87915fb2091e4a2ddb41890
dir: /builds/toplevel.mk/
#
# FreeType build system -- top-level sub-Makefile
#
# Copyright 1996-2000, 2001, 2003, 2006 by
# David Turner, Robert Wilhelm, and Werner Lemberg.
#
# This file is part of the FreeType project, and may only be used, modified,
# and distributed under the terms of the FreeType project license,
# LICENSE.TXT. By continuing to use, modify, or distribute this file you
# indicate that you have read the license and understand and accept it
# fully.
# This file is designed for GNU Make, do not use it with another Make tool!
#
# It works as follows:
#
# - When invoked for the first time, this Makefile will include the rules
# found in `PROJECT/builds/detect.mk'. They are in charge of detecting
# the current platform.
#
# A summary of the detection will be displayed, and the file `config.mk'
# will be created in the current directory.
#
# - When invoked later, this Makefile will include the rules found in
# `config.mk'. This sub-Makefile will define some system-specific
# variables (like compiler, compilation flags, object suffix, etc.), then
# include the rules found in `PROJECT/builds/PROJECT.mk', used to build
# the library.
#
# See the comments in `builds/detect.mk' and `builds/PROJECT.mk' for more
# details on host platform detection and library builds.
.PHONY: all setup distclean modules
# The `space' variable is used to avoid trailing spaces in defining the
# `T' variable later.
#
empty :=
space := $(empty) $(empty)
# The main configuration file, defining the `XXX_MODULES' variables. We
# prefer a `modules.cfg' file in OBJ_DIR over TOP_DIR.
#
ifndef MODULES_CFG
MODULES_CFG := $(TOP_DIR)/modules.cfg
ifneq ($(wildcard $(OBJ_DIR)/modules.cfg),)
MODULES_CFG := $(OBJ_DIR)/modules.cfg
endif
endif
# FTMODULE_H, as its name suggests, indicates where the FreeType module
# classes resides.
#
FTMODULE_H ?= $(OBJ_DIR)/ftmodule.h
include $(MODULES_CFG)
# The list of modules we are using.
#
MODULES := $(FONT_MODULES) \
$(HINTING_MODULES) \
$(RASTER_MODULES) \
$(AUX_MODULES)
CONFIG_MK ?= config.mk
# If no configuration sub-makefile is present, or if `setup' is the target
# to be built, run the auto-detection rules to figure out which
# configuration rules file to use.
#
# Note that the configuration file is put in the current directory, which is
# not necessarily $(TOP_DIR).
# If `config.mk' is not present, set `check_platform'.
#
ifeq ($(wildcard $(CONFIG_MK)),)
check_platform := 1
endif
# If `setup' is one of the targets requested, set `check_platform'.
#
ifneq ($(findstring setup,$(MAKECMDGOALS)),)
check_platform := 1
endif
# Include the automatic host platform detection rules when we need to
# check the platform.
#
ifdef check_platform
all modules: setup
include $(TOP_DIR)/builds/detect.mk
# This rule makes sense for Unix only to remove files created by a run
# of the configure script which hasn't been successful (so that no
# `config.mk' has been created). It uses the built-in $(RM) command of
# GNU make. Similarly, `nul' is created if e.g. `make setup win32' has
# been erroneously used.
#
# Note: This test is duplicated in `builds/unix/detect.mk'.
#
is_unix := $(strip $(wildcard /sbin/init) \
$(wildcard /usr/sbin/init) \
$(wildcard /hurd/auth))
ifneq ($(is_unix),)
distclean:
$(RM) builds/unix/config.cache
$(RM) builds/unix/config.log
$(RM) builds/unix/config.status
$(RM) builds/unix/unix-def.mk
$(RM) builds/unix/unix-cc.mk
$(RM) builds/unix/freetype2.pc
$(RM) nul
endif # test is_unix
# IMPORTANT:
#
# `setup' must be defined by the host platform detection rules to create
# the `config.mk' file in the current directory.
else
# A configuration sub-Makefile is present -- simply run it.
#
all: single
BUILD_PROJECT := yes
include $(CONFIG_MK)
endif # test check_platform
# We always need the list of modules in ftmodule.h.
#
all setup: $(FTMODULE_H)
# The `modules' target unconditionally rebuilds the module list.
#
modules:
$(FTMODULE_H_INIT)
$(FTMODULE_H_CREATE)
$(FTMODULE_H_DONE)
include $(TOP_DIR)/builds/modules.mk
# EOF