annotate packages/pkgconf/makrules.src @ 64:c38311975d4f ecos-sw-2000-01-28

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author jlarmour
date Fri, 28 Jan 2000 04:59:39 +0000
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1 #===============================================================================
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2 #
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3 # makrules.src
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4 #
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5 # This file contains generic rules that can be applied to all src
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6 # directories.
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7 #
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8 #===============================================================================
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9 #####COPYRIGHTBEGIN####
64
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10 #
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11 # -------------------------------------------
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12 # The contents of this file are subject to the Red Hat eCos Public License
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13 # Version 1.0 (the "License"); you may not use this file except in
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14 # compliance with the License. You may obtain a copy of the License at
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15 # http://sourceware.cygnus.com/ecos
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16 #
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17 # Software distributed under the License is distributed on an
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18 # basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
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19 # License for the specific language governing rights and limitations under
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20 # the License.
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21 #
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22 # The Original Code is eCos - Embedded Configurable Operating System,
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23 # released September 30, 1998.
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24 #
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25 # The Initial Developer of the Original Code is Red Hat.
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26 # Portions created by Red Hat are
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27 # Copyright (C) 1998, 1999, 2000 Red Hat, Inc.
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28 # All Rights Reserved.
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29 # -------------------------------------------
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30 #
0
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31 #####COPYRIGHTEND####
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32 #===============================================================================
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33
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34 .PHONY: default build clean
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35
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36 # Source files can be picked up from the build tree or the component
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37 # repository. This allows copies of the sources to be made in the
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38 # build tree and edited there.
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39 VPATH := . $(COMPONENT_REPOSITORY)/$($(PACKAGE)_DIR)/src
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40
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41 # The object files and the dependency files can be deduced mainly
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42 # from the list of source files. OTHER_OBJS and OTHER_DEPS are
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43 # provided as an escape mechanism, as is OTHER_TARGETS.
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44
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45 OBJECTS := $(COMPILE:.cxx=.o)
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46 OBJECTS := $(OBJECTS:.c=.o)
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47 OBJECTS := $(OBJECTS:.S=.o)
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48 OBJECTS := $(foreach obj,$(OBJECTS),$(dir $(obj))$(PACKAGE)_$(notdir $(obj)))
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49 DEPS := $(OBJECTS:.o=.d)
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50
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51 EXTRAS_OBJECTS := $(EXTRAS_COMPILE:.cxx=.o)
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52 EXTRAS_OBJECTS := $(EXTRAS_OBJECTS:.c=.o)
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53 EXTRAS_OBJECTS := $(EXTRAS_OBJECTS:.S=.o)
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54 EXTRAS_OBJECTS := $(foreach obj,$(EXTRAS_OBJECTS),$(dir $(obj))$(PACKAGE)_$(notdir $(obj)))
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55 DEPS := $(DEPS) $(EXTRAS_OBJECTS:.o=.d)
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56
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57 OBJECTS := $(OBJECTS) $(OTHER_OBJS)
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58 EXTRAS_OBJECTS := $(EXTRAS_OBJECTS) $(EXTRAS_OTHER_OBJECTS)
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59 DEPS := $(DEPS) $(OTHER_DEPS)
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60
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61 # The header file search path is as follows:
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62 #
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63 # $(PREFIX)/include
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64 # These headers are what will be used by application code.
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65 #
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66 # .
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67 # Header files private to a package and copied into the build tree.
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68 #
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69 # $(COMPONENT_REPOSITORY)/<package>/src
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70 # Header files private to a package and still in the repository.
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71 #
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72 # It is possible for additional paths to be specified by the user,
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73 # typically by editing the makevars file. Any such search paths take
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74 # precedence over the default path.
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75
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76 INCLUDE_PATH := $(INCLUDE_PATH) -I$(PREFIX)/include $(foreach dir,$(VPATH),-I$(dir))
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77
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78 #
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79 # This is the default target. It is responsible for updating the library,
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80 # building any special targets, and updating the dependency information.
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81
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82 build: $(LIBRARY).stamp extras $(OTHER_TARGETS)
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83 ifneq ($(strip $(DEPS)),)
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84 @$(CAT) $(DEPS) > makefile.deps
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85 endif
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86
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87
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88 # Updating the library involves using ar with any object files that
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89 # have been rebuilt. A few packages may not involve any object files
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90 # at all.
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91
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92 $(LIBRARY).stamp: $(OBJECTS)
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93 ifneq ($(strip $(OBJECTS)),)
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94 $(AR) rcs $(PREFIX)/lib/$(LIBRARY) $?
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95 endif
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96 $(TOUCH) $@
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97
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98 # Updating libextras.a may or may not be a no-op, many packages
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99 # will not want to put anything there.
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100 .PHONY: extras
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101 ifeq ($(strip $(EXTRAS_OBJECTS)),)
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102 extras:
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103 else
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104 extras: $(PREFIX)/lib/libextras.a($(EXTRAS_OBJECTS))
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105 endif
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106
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107 # The clean target cleans up the intermediate files, any object
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108 # files, and any dependency files.
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109
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110 clean: $(OTHER_CLEAN)
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111 $(RM) $(LIBRARY).stamp
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112 @$(RM) makefile.deps
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113 ifneq ($(strip $(OBJECTS)),)
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114 $(RM) $(OBJECTS)
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115 endif
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116 ifneq ($(strip $(EXTRAS_OBJECTS)),)
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117 $(RM) $(EXTRAS_OBJECTS)
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118 endif
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119 ifneq ($(strip $(DEPS)),)
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120 @$(RM) $(DEPS)
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121 endif
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122
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123 #
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124 # These file dependencies ensure that all files are rebuilt if
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125 # there is a change to the build environment, e.g. if a different
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126 # compiler is being used.
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127 #
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128 ifneq ($(strip $(OBJECTS)),)
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129 $(OBJECTS) : $(BUILD_TREE)/pkgconf/pkgconf.mak
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130 $(OBJECTS) : $(BUILD_TREE)/pkgconf/makevars $(PACKAGE_RULES_FILE)
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131 endif
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132 ifneq ($(strip $(EXTRAS_OBJECTS)),)
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133 $(EXTRAS_OBJECTS) : $(BUILD_TREE)/pkgconf/pkgconf.mak
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134 $(EXTRAS_OBJECTS) : $(BUILD_TREE)/pkgconf/makevars $(PACKAGE_RULES_FILE)
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135 endif
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136 ifneq ($(strip $(OTHER_TARGETS)),)
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137 $(OTHER_TARGETS) : $(BUILD_TREE)/pkgconf/pkgconf.mak
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138 $(OTHER_TARGETS) : $(BUILD_TREE)/pkgconf/makevars $(PACKAGE_RULES_FILE)
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139 endif
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140
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141 #
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142 # This rule reads in any previously generated dependency information.
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143 #
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144 ifneq ($(wildcard makefile.deps),)
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145 include makefile.deps
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146 endif
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147
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148