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comparison: modules/freetype2/builds/detect.mk
modules/freetype2/builds/detect.mk
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| 1 # | |
| 2 # FreeType 2 host platform detection rules | |
| 3 # | |
| 4 | |
| 5 | |
| 6 # Copyright 1996-2003, 2006, 2008, 2013 by | |
| 7 # David Turner, Robert Wilhelm, and Werner Lemberg. | |
| 8 # | |
| 9 # This file is part of the FreeType project, and may only be used, modified, | |
| 10 # and distributed under the terms of the FreeType project license, | |
| 11 # LICENSE.TXT. By continuing to use, modify, or distribute this file you | |
| 12 # indicate that you have read the license and understand and accept it | |
| 13 # fully. | |
| 14 | |
| 15 | |
| 16 # This sub-Makefile is in charge of detecting the current platform. It sets | |
| 17 # the following variables: | |
| 18 # | |
| 19 # BUILD_DIR The configuration and system-specific directory. Usually | |
| 20 # `builds/$(PLATFORM)' but can be different for custom builds | |
| 21 # of the library. | |
| 22 # | |
| 23 # The following variables must be defined in system specific `detect.mk' | |
| 24 # files: | |
| 25 # | |
| 26 # PLATFORM The detected platform. This will default to `ansi' if | |
| 27 # auto-detection fails. | |
| 28 # CONFIG_FILE The configuration sub-makefile to use. This usually depends | |
| 29 # on the compiler defined in the `CC' environment variable. | |
| 30 # DELETE The shell command used to remove a given file. | |
| 31 # COPY The shell command used to copy one file. | |
| 32 # SEP The platform-specific directory separator. | |
| 33 # COMPILER_SEP The separator used in arguments of the compilation tools. | |
| 34 # CC The compiler to use. | |
| 35 # | |
| 36 # You need to set the following variable(s) before calling it: | |
| 37 # | |
| 38 # TOP_DIR The top-most directory in the FreeType library source | |
| 39 # hierarchy. If not defined, it will default to `.'. | |
| 40 | |
| 41 # Set auto-detection default to `ansi' resp. UNIX-like operating systems. | |
| 42 # | |
| 43 PLATFORM := ansi | |
| 44 DELETE := $(RM) | |
| 45 COPY := cp | |
| 46 CAT := cat | |
| 47 SEP := / | |
| 48 | |
| 49 BUILD_CONFIG := $(TOP_DIR)/builds | |
| 50 | |
| 51 # These two assignments must be delayed. | |
| 52 BUILD_DIR = $(BUILD_CONFIG)/$(PLATFORM) | |
| 53 CONFIG_RULES = $(BUILD_DIR)/$(CONFIG_FILE) | |
| 54 | |
| 55 # We define the BACKSLASH variable to hold a single back-slash character. | |
| 56 # This is needed because a line like | |
| 57 # | |
| 58 # SEP := \ | |
| 59 # | |
| 60 # does not work with GNU Make (the backslash is interpreted as a line | |
| 61 # continuation). While a line like | |
| 62 # | |
| 63 # SEP := \\ | |
| 64 # | |
| 65 # really defines $(SEP) as `\' on Unix, and `\\' on Dos and Windows! | |
| 66 # | |
| 67 BACKSLASH := $(strip \ ) | |
| 68 | |
| 69 # Find all auto-detectable platforms. | |
| 70 # | |
| 71 PLATFORMS := $(notdir $(subst /detect.mk,,$(wildcard $(BUILD_CONFIG)/*/detect.mk))) | |
| 72 .PHONY: $(PLATFORMS) ansi | |
| 73 | |
| 74 # Filter out platform specified as setup target. | |
| 75 # | |
| 76 PLATFORM := $(firstword $(filter $(MAKECMDGOALS),$(PLATFORMS))) | |
| 77 | |
| 78 # If no setup target platform was specified, enable auto-detection/ | |
| 79 # default platform. | |
| 80 # | |
| 81 ifeq ($(PLATFORM),) | |
| 82 PLATFORM := ansi | |
| 83 endif | |
| 84 | |
| 85 # If the user has explicitly asked for `ansi' on the command line, | |
| 86 # disable auto-detection. | |
| 87 # | |
| 88 ifeq ($(findstring ansi,$(MAKECMDGOALS)),) | |
| 89 # Now, include all detection rule files found in the `builds/<system>' | |
| 90 # directories. Note that the calling order of the various `detect.mk' | |
| 91 # files isn't predictable. | |
| 92 # | |
| 93 include $(wildcard $(BUILD_CONFIG)/*/detect.mk) | |
| 94 endif | |
| 95 | |
| 96 # In case no detection rule file was successful, use the default. | |
| 97 # | |
| 98 ifndef CONFIG_FILE | |
| 99 CONFIG_FILE := ansi.mk | |
| 100 setup: std_setup | |
| 101 .PHONY: setup | |
| 102 endif | |
| 103 | |
| 104 # The following targets are equivalent, with the exception that they use | |
| 105 # a slightly different syntax for the `echo' command. | |
| 106 # | |
| 107 # std_setup: defined for most (i.e. Unix-like) platforms | |
| 108 # dos_setup: defined for Dos-ish platforms like Dos, Windows & OS/2 | |
| 109 # | |
| 110 .PHONY: std_setup dos_setup | |
| 111 | |
| 112 std_setup: | |
| 113 @echo "" | |
| 114 @echo "$(PROJECT_TITLE) build system -- automatic system detection" | |
| 115 @echo "" | |
| 116 @echo "The following settings are used:" | |
| 117 @echo "" | |
| 118 @echo " platform $(PLATFORM)" | |
| 119 @echo " compiler $(CC)" | |
| 120 @echo " configuration directory $(BUILD_DIR)" | |
| 121 @echo " configuration rules $(CONFIG_RULES)" | |
| 122 @echo "" | |
| 123 @echo "If this does not correspond to your system or settings please remove the file" | |
| 124 @echo "\`$(CONFIG_MK)' from this directory then read the INSTALL file for help." | |
| 125 @echo "" | |
| 126 @echo "Otherwise, simply type \`$(MAKE)' again to build the library," | |
| 127 @echo "or \`$(MAKE) refdoc' to build the API reference (the latter needs python)." | |
| 128 @echo "" | |
| 129 @$(COPY) $(CONFIG_RULES) $(CONFIG_MK) | |
| 130 | |
| 131 | |
| 132 # Special case for Dos, Windows, OS/2, where echo "" doesn't work correctly! | |
| 133 # | |
| 134 dos_setup: | |
| 135 @type builds$(SEP)newline | |
| 136 @echo $(PROJECT_TITLE) build system -- automatic system detection | |
| 137 @type builds$(SEP)newline | |
| 138 @echo The following settings are used: | |
| 139 @type builds$(SEP)newline | |
| 140 @echo platform˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙$(PLATFORM) | |
| 141 @echo compiler˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙$(CC) | |
| 142 @echo configuration directory˙˙˙˙˙˙$(subst /,$(SEP),$(BUILD_DIR)) | |
| 143 @echo configuration rules˙˙˙˙˙˙˙˙˙˙$(subst /,$(SEP),$(CONFIG_RULES)) | |
| 144 @type builds$(SEP)newline | |
| 145 @echo If this does not correspond to your system or settings please remove the file | |
| 146 @echo '$(CONFIG_MK)' from this directory then read the INSTALL file for help. | |
| 147 @type builds$(SEP)newline | |
| 148 @echo Otherwise, simply type 'make' again to build the library. | |
| 149 @echo or 'make refdoc' to build the API reference (the latter needs python). | |
| 150 @type builds$(SEP)newline | |
| 151 @$(COPY) $(subst /,$(SEP),$(CONFIG_RULES) $(CONFIG_MK)) > nul | |
| 152 | |
| 153 | |
| 154 # EOF |
