kc3-lang/freetype/builds/detect.mk

Branch : - branch - master v2.13 - tag -

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• Author : Werner Lemberg
  Date : 2021-01-10 15:34:46
  Hash : 03ceda97
  Message : * builds/*: s/BUILD_DIR/PLATFORM_DIR/. The old variable name caused confusion.

• builds/detect.mk

• #
  # FreeType 2 host platform detection rules
  #
  
  
  # Copyright (C) 1996-2020 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 sub-Makefile is in charge of detecting the current platform.  It sets
  # the following variables:
  #
  #   PLATFORM_DIR The configuration and system-specific directory.  Usually
  #                `builds/$(PLATFORM)' but can be different for custom builds
  #                of the library.
  #
  # The following variables must be defined in system specific `detect.mk'
  # files:
  #
  #   PLATFORM     The detected platform.  This will default to `ansi' if
  #                auto-detection fails.
  #   CONFIG_FILE  The configuration sub-makefile to use.  This usually depends
  #                on the compiler defined in the `CC' environment variable.
  #   DELETE       The shell command used to remove a given file.
  #   COPY         The shell command used to copy one file.
  #   SEP          The platform-specific directory separator.
  #   COMPILER_SEP The separator used in arguments of the compilation tools.
  #   CC           The compiler to use.
  #
  # You need to set the following variable(s) before calling it:
  #
  #   TOP_DIR      The top-most directory in the FreeType library source
  #                hierarchy.  If not defined, it will default to `.'.
  
  # Set auto-detection default to `ansi' resp. UNIX-like operating systems.
  #
  PLATFORM     := ansi
  DELETE       := $(RM)
  COPY         := cp
  CAT          := cat
  SEP          := /
  
  BUILD_CONFIG := $(TOP_DIR)/builds
  
  # These two assignments must be delayed.
  PLATFORM_DIR = $(BUILD_CONFIG)/$(PLATFORM)
  CONFIG_RULES = $(PLATFORM_DIR)/$(CONFIG_FILE)
  
  # We define the BACKSLASH variable to hold a single back-slash character.
  # This is needed because a line like
  #
  #   SEP := \
  #
  # does not work with GNU Make (the backslash is interpreted as a line
  # continuation).  While a line like
  #
  #   SEP := \\
  #
  # really defines $(SEP) as `\' on Unix, and `\\' on Dos and Windows!
  #
  BACKSLASH := $(strip \ )
  
  # Find all auto-detectable platforms.
  #
  PLATFORMS := $(notdir $(subst /detect.mk,,$(wildcard $(BUILD_CONFIG)/*/detect.mk)))
  .PHONY: $(PLATFORMS) ansi
  
  # Filter out platform specified as setup target.
  #
  PLATFORM := $(firstword $(filter $(MAKECMDGOALS),$(PLATFORMS)))
  
  # If no setup target platform was specified, enable auto-detection/
  # default platform.
  #
  ifeq ($(PLATFORM),)
    PLATFORM := ansi
  endif
  
  # If the user has explicitly asked for `ansi' on the command line,
  # disable auto-detection.
  #
  ifeq ($(findstring ansi,$(MAKECMDGOALS)),)
    # Now, include all detection rule files found in the `builds/<system>'
    # directories.  Note that the calling order of the various `detect.mk'
    # files isn't predictable.
    #
    include $(wildcard $(BUILD_CONFIG)/*/detect.mk)
  endif
  
  # In case no detection rule file was successful, use the default.
  #
  ifndef CONFIG_FILE
    CONFIG_FILE := ansi.mk
    setup: std_setup
    .PHONY: setup
  endif
  
  # Flash out and copy rules.
  #
  .PHONY: std_setup
  
  std_setup:
  	$(info )
  	$(info $(PROJECT_TITLE) build system -- automatic system detection)
  	$(info )
  	$(info The following settings are used:)
  	$(info )
  	$(info $(empty)  platform                    $(PLATFORM))
  	$(info $(empty)  compiler                    $(CC))
  	$(info $(empty)  configuration directory     $(subst /,$(SEP),$(PLATFORM_DIR)))
  	$(info $(empty)  configuration rules         $(subst /,$(SEP),$(CONFIG_RULES)))
  	$(info )
  	$(info If this does not correspond to your system or settings please remove the file)
  	$(info `$(CONFIG_MK)' from this directory then read the INSTALL file for help.)
  	$(info )
  	$(info Otherwise, simply type `$(MAKE)' again to build the library,)
  	$(info or `$(MAKE) refdoc' to build the API reference (this needs Python >= 3.5).)
  	$(info )
  	@$(COPY) $(subst /,$(SEP),$(CONFIG_RULES) $(CONFIG_MK))
  
  
  # EOF