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109 lines
2.7 KiB
109 lines
2.7 KiB
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# FreeType build system -- top-level sub-Makefile |
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# Copyright 2000 by David Turner |
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# This file is designed for GNU Make, do not use it with another Make tool! |
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# |
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# It works as follows: |
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# |
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# - When invoked for the first time, this Makefile will include the rules |
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# found in `PROJECT/builds/detect.mk'. They are in charge of detecting |
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# the current platform. |
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# |
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# A summary of the detection will be displayed, and the file `config.mk' |
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# will be created in the current directory. |
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# |
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# - When invoked later, this Makefile will include the rules found in |
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# `config.mk'. This sub-Makefile will define some system-specific |
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# variables (like compiler, compilation flags, object suffix, etc.), then |
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# include the rules found in `PROJECT/builds/PROJECT.mk', used to build |
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# the library. |
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# |
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# See the comments in `builds/detect.mk' and `builds/PROJECT.mk' for more |
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# details on host platform detection and library builds. |
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.PHONY: setup |
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ifndef CONFIG_MK |
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CONFIG_MK := config.mk |
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endif |
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# If no configuration sub-makefile is present, or if `setup' is the target |
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# to be built, run the auto-detection rules to figure out which |
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# configuration rules file to use. |
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# |
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# Note that the configuration file is put in the current directory, which is |
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# not necessarily $(TOP). |
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# If `config.mk' is not present, set `check_platform'. |
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# |
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ifeq ($(wildcard $(CONFIG_MK)),) |
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check_platform := 1 |
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endif |
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# If `setup' is one of the targets requested, set `check_platform'. |
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# |
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ifneq ($(findstring setup,$(MAKECMDGOALS)),) |
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check_platform := 1 |
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endif |
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# Include the automatic host platform detection rules when we need to |
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# check the platform. |
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# |
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ifdef check_platform |
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all: setup |
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ifdef USE_MODULES |
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# If the module list $(MODULE_LIST) file is not present, generate it. |
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# |
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#modules: make_module_list setup |
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endif |
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include $(TOP)/builds/detect.mk |
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ifdef USE_MODULES |
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include $(TOP)/builds/modules.mk |
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ifeq ($(wildcard $(MODULE_LIST)),) |
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setup: make_module_list |
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endif |
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endif |
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# This rule makes sense for Unix only to remove files created by a run |
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# of the configure script which hasn't been successful (so that no |
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# `config.mk' has been created). It uses the built-in $(RM) command of |
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# GNU make. |
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# |
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distclean: |
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$(RM) builds/unix/config.cache |
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$(RM) builds/unix/config.log |
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$(RM) builds/unix/config.status |
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$(RM) builds/unix/unix-def.mk |
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$(RM) builds/unix/unix-cc.mk |
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# IMPORTANT: |
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# |
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# `setup' must be defined by the host platform detection rules to create |
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# the `config.mk' file in the current directory. |
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else |
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# A configuration sub-Makefile is present -- simply run it. |
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# |
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all: single |
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ifdef USE_MODULES |
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modules: make_module_list |
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endif |
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BUILD_PROJECT := yes |
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include $(CONFIG_MK) |
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endif # test check_platform |
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# EOF
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