ref: bd7251ac97eea134873118f4d9f005c333e31953
dir: /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: # # BUILD_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. BUILD_DIR = $(BUILD_CONFIG)/$(PLATFORM) CONFIG_RULES = $(BUILD_DIR)/$(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),$(BUILD_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