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Diffstat (limited to 'builds/detect.mk')
| -rw-r--r-- | builds/detect.mk | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/builds/detect.mk b/builds/detect.mk new file mode 100644 index 0000000..c3632c0 --- /dev/null +++ b/builds/detect.mk @@ -0,0 +1,154 @@ +# +# FreeType 2 host platform detection rules +# + + +# Copyright 1996-2000, 2001, 2002, 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 sub-Makefile is in charge of detecting the current platform. It sets +# the following variables: +# +# BUILD_DIR The configuration and system-specific directory. Usually +# `freetype/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 $(BUILD_CONFIG)/*/detect.mk) +endif + +# In case no detection rule file was successful, use the default. +# +ifndef CONFIG_FILE + CONFIG_FILE := ansi.mk + setup: std_setup + .PHONY: setup +endif + +# The following targets are equivalent, with the exception that they use +# a slightly different syntax for the `echo' command. +# +# std_setup: defined for most (i.e. Unix-like) platforms +# dos_setup: defined for Dos-ish platforms like Dos, Windows & OS/2 +# +.PHONY: std_setup dos_setup + +std_setup: + @echo "" + @echo "$(PROJECT_TITLE) build system -- automatic system detection" + @echo "" + @echo "The following settings are used:" + @echo "" + @echo " platform $(PLATFORM)" + @echo " compiler $(CC)" + @echo " configuration directory $(BUILD_DIR)" + @echo " configuration rules $(CONFIG_RULES)" + @echo "" + @echo "If this does not correspond to your system or settings please remove the file" + @echo "\`$(CONFIG_MK)' from this directory then read the INSTALL file for help." + @echo "" + @echo "Otherwise, simply type \`$(MAKE)' again to build the library," + @echo "or \`$(MAKE) refdoc' to build the API reference (the latter needs python)." + @echo "" + @$(COPY) $(CONFIG_RULES) $(CONFIG_MK) + + +# Special case for Dos, Windows, OS/2, where echo "" doesn't work correctly! +# +dos_setup: + @type builds\newline + @echo $(PROJECT_TITLE) build system -- automatic system detection + @type builds\newline + @echo The following settings are used: + @type builds\newline + @echo platform˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙$(PLATFORM) + @echo compiler˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙$(CC) + @echo configuration directory˙˙˙˙˙˙$(subst /,\,$(BUILD_DIR)) + @echo configuration rules˙˙˙˙˙˙˙˙˙˙$(subst /,\,$(CONFIG_RULES)) + @type builds\newline + @echo If this does not correspond to your system or settings please remove the file + @echo '$(CONFIG_MK)' from this directory then read the INSTALL file for help. + @type builds\newline + @echo Otherwise, simply type 'make' again to build the library. + @echo or 'make refdoc' to build the API reference (the latter needs python). + @type builds\newline + @$(COPY) $(subst /,\,$(CONFIG_RULES) $(CONFIG_MK)) > nul + + +# EOF |