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- #
- # FreeType 2 host platform detection rules
- #
-
-
- # Copyright (C) 1996-2022 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
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