| # |
| # FreeType 2 host platform detection rules |
| # |
| |
| |
| # Copyright (C) 1996-2024 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 |