1 | # Copyright 1999-2004 Gentoo Foundation |
1 | # Copyright 1999-2011 Gentoo Foundation |
2 | # Distributed under the terms of the GNU General Public License v2 |
2 | # Distributed under the terms of the GNU General Public License v2 |
3 | # $Header: /var/cvsroot/gentoo-x86/eclass/elisp-common.eclass,v 1.11 2005/07/06 20:20:03 agriffis Exp $ |
3 | # $Header: /var/cvsroot/gentoo-x86/eclass/elisp-common.eclass,v 1.74 2011/08/22 06:56:26 ulm Exp $ |
4 | # |
4 | # |
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5 | # @ECLASS: elisp-common.eclass |
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6 | # @MAINTAINER: |
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7 | # Gentoo Emacs team <emacs@gentoo.org> |
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8 | # @AUTHOR: |
5 | # Copyright 2002-2003 Matthew Kennedy <mkennedy@gentoo.org> |
9 | # Matthew Kennedy <mkennedy@gentoo.org> |
6 | # Copyright 2003 Jeremy Maitin-Shepard <jbms@attbi.com> |
10 | # Jeremy Maitin-Shepard <jbms@attbi.com> |
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11 | # Mamoru Komachi <usata@gentoo.org> |
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12 | # Christian Faulhammer <fauli@gentoo.org> |
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13 | # Ulrich Müller <ulm@gentoo.org> |
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14 | # @BLURB: Emacs-related installation utilities |
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15 | # @DESCRIPTION: |
7 | # |
16 | # |
8 | # This is not an eclass, but it does provide emacs-related |
17 | # Usually you want to use this eclass for (optional) GNU Emacs support |
9 | # installation utilities. |
18 | # of your package. This is NOT for XEmacs! |
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19 | # |
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20 | # Many of the steps here are sometimes done by the build system of your |
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21 | # package (especially compilation), so this is mainly for standalone |
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22 | # elisp files you gathered from somewhere else. |
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23 | # |
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24 | # When relying on the emacs USE flag, you need to add |
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25 | # |
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26 | # emacs? ( virtual/emacs ) |
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27 | # |
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28 | # to your DEPEND/RDEPEND line and use the functions provided here to |
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29 | # bring the files to the correct locations. |
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30 | # |
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31 | # If your package requires a minimum Emacs version, e.g. Emacs 23, then |
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32 | # the dependency should be on >=virtual/emacs-23 instead. Because the |
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33 | # user can select the Emacs executable with eselect, you should also |
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34 | # make sure that the active Emacs version is sufficient. This can be |
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35 | # tested with function elisp-need-emacs(), which would typically be |
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36 | # called from pkg_setup(), as in the following example: |
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37 | # |
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38 | # elisp-need-emacs 23 || die "Emacs version too low" |
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39 | # |
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40 | # Please note that such tests should be limited to packages that are |
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41 | # known to fail with lower Emacs versions; the standard case is to |
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42 | # depend on virtual/emacs without version. |
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43 | # |
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44 | # .SS |
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45 | # src_compile() usage: |
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46 | # |
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47 | # An elisp file is compiled by the elisp-compile() function defined |
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48 | # here and simply takes the source files as arguments. The case of |
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49 | # interdependent elisp files is also supported, since the current |
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50 | # directory is added to the load-path which makes sure that all files |
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51 | # are loadable. |
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52 | # |
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53 | # elisp-compile *.el || die |
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54 | # |
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55 | # Function elisp-make-autoload-file() can be used to generate a file |
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56 | # with autoload definitions for the lisp functions. It takes the output |
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57 | # file name (default: "${PN}-autoloads.el") and a list of directories |
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58 | # (default: working directory) as its arguments. Use of this function |
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59 | # requires that the elisp source files contain magic ";;;###autoload" |
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60 | # comments. See the Emacs Lisp Reference Manual (node "Autoload") for |
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61 | # a detailed explanation. |
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62 | # |
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63 | # .SS |
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64 | # src_install() usage: |
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65 | # |
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66 | # The resulting compiled files (.elc) should be put in a subdirectory of |
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67 | # /usr/share/emacs/site-lisp/ which is named after the first argument |
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68 | # of elisp-install(). The following parameters are the files to be put |
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69 | # in that directory. Usually the subdirectory should be ${PN}, you can |
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70 | # choose something else, but remember to tell elisp-site-file-install() |
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71 | # (see below) the change, as it defaults to ${PN}. |
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72 | # |
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73 | # elisp-install ${PN} *.el *.elc || die |
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74 | # |
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75 | # To let the Emacs support be activated by Emacs on startup, you need |
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76 | # to provide a site file (shipped in ${FILESDIR}) which contains the |
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77 | # startup code (have a look in the documentation of your software). |
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78 | # Normally this would look like this: |
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79 | # |
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80 | # (add-to-list 'load-path "@SITELISP@") |
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81 | # (add-to-list 'auto-mode-alist '("\\.csv\\'" . csv-mode)) |
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82 | # (autoload 'csv-mode "csv-mode" "Major mode for csv files." t) |
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83 | # |
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84 | # If your Emacs support files are installed in a subdirectory of |
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85 | # /usr/share/emacs/site-lisp/ (which is strongly recommended), you need |
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86 | # to extend Emacs' load-path as shown in the first non-comment line. |
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87 | # The elisp-site-file-install() function of this eclass will replace |
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88 | # "@SITELISP@" and "@SITEETC@" by the actual paths. |
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89 | # |
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90 | # The next line tells Emacs to load the mode opening a file ending |
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91 | # with ".csv" and load functions depending on the context and needed |
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92 | # features. Be careful though. Commands as "load-library" or "require" |
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93 | # bloat the editor as they are loaded on every startup. When having |
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94 | # many Emacs support files, users may be annoyed by the start-up time. |
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95 | # Also avoid keybindings as they might interfere with the user's |
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96 | # settings. Give a hint in pkg_postinst(), which should be enough. |
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97 | # |
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98 | # The naming scheme for this site-init file matches the shell pattern |
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99 | # "[1-8][0-9]*-gentoo*.el", where the two digits at the beginning define |
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100 | # the loading order (numbers below 10 or above 89 are reserved for |
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101 | # internal use). So if your initialisation depends on another Emacs |
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102 | # package, your site file's number must be higher! If there are no such |
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103 | # interdependencies then the number should be 50. Otherwise, numbers |
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104 | # divisible by 10 are preferred. |
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105 | # |
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106 | # Best practice is to define a SITEFILE variable in the global scope of |
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107 | # your ebuild (e.g., right after S or RDEPEND): |
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108 | # |
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109 | # SITEFILE="50${PN}-gentoo.el" |
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110 | # |
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111 | # Which is then installed by |
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112 | # |
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113 | # elisp-site-file-install "${FILESDIR}/${SITEFILE}" || die |
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114 | # |
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115 | # in src_install(). Any characters after the "-gentoo" part and before |
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116 | # the extension will be stripped from the destination file's name. |
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117 | # For example, a file "50${PN}-gentoo-${PV}.el" will be installed as |
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118 | # "50${PN}-gentoo.el". If your subdirectory is not named ${PN}, give |
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119 | # the differing name as second argument. |
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120 | # |
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121 | # .SS |
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122 | # pkg_postinst() / pkg_postrm() usage: |
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123 | # |
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124 | # After that you need to recreate the start-up file of Emacs after |
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125 | # emerging and unmerging by using |
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126 | # |
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127 | # pkg_postinst() { |
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128 | # elisp-site-regen |
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129 | # } |
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130 | # |
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131 | # pkg_postrm() { |
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132 | # elisp-site-regen |
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133 | # } |
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134 | # |
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135 | # When having optional Emacs support, you should prepend "use emacs &&" |
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136 | # to above calls of elisp-site-regen(). |
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137 | # Don't use "has_version virtual/emacs"! When unmerging the state of |
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138 | # the emacs USE flag is taken from the package database and not from the |
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139 | # environment, so it is no problem when you unset USE=emacs between |
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140 | # merge and unmerge of a package. |
10 | |
141 | |
11 | INHERITED="$INHERITED $ECLASS" |
142 | # @ECLASS-VARIABLE: SITELISP |
12 | |
143 | # @DESCRIPTION: |
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144 | # Directory where packages install Emacs Lisp files. |
13 | SITELISP=/usr/share/emacs/site-lisp |
145 | SITELISP=/usr/share/emacs/site-lisp |
14 | |
146 | |
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147 | # @ECLASS-VARIABLE: SITEETC |
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148 | # @DESCRIPTION: |
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149 | # Directory where packages install miscellaneous (not Lisp) files. |
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150 | SITEETC=/usr/share/emacs/etc |
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151 | |
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152 | # @ECLASS-VARIABLE: EMACS |
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153 | # @DESCRIPTION: |
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154 | # Path of Emacs executable. |
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155 | EMACS=${EPREFIX}/usr/bin/emacs |
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156 | |
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157 | # @ECLASS-VARIABLE: EMACSFLAGS |
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158 | # @DESCRIPTION: |
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159 | # Flags for executing Emacs in batch mode. |
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160 | # These work for Emacs versions 18-23, so don't change them. |
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161 | EMACSFLAGS="-batch -q --no-site-file" |
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162 | |
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163 | # @ECLASS-VARIABLE: BYTECOMPFLAGS |
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164 | # @DESCRIPTION: |
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165 | # Emacs flags used for byte-compilation in elisp-compile(). |
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166 | BYTECOMPFLAGS="-L ." |
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167 | |
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168 | # @FUNCTION: elisp-emacs-version |
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169 | # @DESCRIPTION: |
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170 | # Output version of currently active Emacs. |
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171 | |
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172 | elisp-emacs-version() { |
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173 | local ret |
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174 | # The following will work for at least versions 18-23. |
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175 | echo "(princ emacs-version)" >"${T}"/emacs-version.el |
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176 | ${EMACS} ${EMACSFLAGS} -l "${T}"/emacs-version.el |
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177 | ret=$? |
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178 | rm -f "${T}"/emacs-version.el |
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179 | if [[ ${ret} -ne 0 ]]; then |
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180 | eerror "elisp-emacs-version: Failed to run ${EMACS}" |
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181 | fi |
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182 | return ${ret} |
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183 | } |
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184 | |
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185 | # @FUNCTION: elisp-need-emacs |
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186 | # @USAGE: <version> |
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187 | # @RETURN: 0 if true, 1 otherwise |
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188 | # @DESCRIPTION: |
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189 | # Test if the eselected Emacs version is at least the major version |
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190 | # specified as argument. |
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191 | |
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192 | elisp-need-emacs() { |
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193 | local need_emacs=$1 have_emacs |
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194 | have_emacs=$(elisp-emacs-version) || return |
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195 | einfo "Emacs version: ${have_emacs}" |
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196 | if ! [[ ${have_emacs%%.*} -ge ${need_emacs%%.*} ]]; then |
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197 | eerror "This package needs at least Emacs ${need_emacs%%.*}." |
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198 | eerror "Use \"eselect emacs\" to select the active version." |
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199 | return 1 |
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200 | fi |
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201 | return 0 |
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202 | } |
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203 | |
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204 | # @FUNCTION: elisp-compile |
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205 | # @USAGE: <list of elisp files> |
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206 | # @DESCRIPTION: |
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207 | # Byte-compile Emacs Lisp files. |
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208 | # |
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209 | # This function uses GNU Emacs to byte-compile all ".el" specified by |
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210 | # its arguments. The resulting byte-code (".elc") files are placed in |
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211 | # the same directory as their corresponding source file. |
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212 | # |
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213 | # The current directory is added to the load-path. This will ensure |
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214 | # that interdependent Emacs Lisp files are visible between themselves, |
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215 | # in case they require or load one another. |
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216 | |
15 | elisp-compile() { |
217 | elisp-compile() { |
16 | /usr/bin/emacs --batch -f batch-byte-compile --no-site-file --no-init-file $* |
218 | ebegin "Compiling GNU Emacs Elisp files" |
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219 | ${EMACS} ${EMACSFLAGS} ${BYTECOMPFLAGS} -f batch-byte-compile "$@" |
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220 | eend $? "elisp-compile: batch-byte-compile failed" |
17 | } |
221 | } |
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222 | |
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223 | # @FUNCTION: elisp-make-autoload-file |
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224 | # @USAGE: [output file] [list of directories] |
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225 | # @DESCRIPTION: |
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226 | # Generate a file with autoload definitions for the lisp functions. |
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227 | |
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228 | elisp-make-autoload-file() { |
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229 | local f="${1:-${PN}-autoloads.el}" null="" page=$'\f' |
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230 | shift |
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231 | ebegin "Generating autoload file for GNU Emacs" |
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232 | |
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233 | cat >"${f}" <<-EOF |
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234 | ;;; ${f##*/} --- autoloads for ${PN} |
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235 | |
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236 | ;;; Commentary: |
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237 | ;; Automatically generated by elisp-common.eclass |
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238 | ;; DO NOT EDIT THIS FILE |
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239 | |
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240 | ;;; Code: |
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241 | ${page} |
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242 | ;; Local ${null}Variables: |
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243 | ;; version-control: never |
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244 | ;; no-byte-compile: t |
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245 | ;; no-update-autoloads: t |
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246 | ;; End: |
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247 | |
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248 | ;;; ${f##*/} ends here |
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249 | EOF |
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250 | |
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251 | ${EMACS} ${EMACSFLAGS} \ |
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252 | --eval "(setq make-backup-files nil)" \ |
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253 | --eval "(setq generated-autoload-file (expand-file-name \"${f}\"))" \ |
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254 | -f batch-update-autoloads "${@-.}" |
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255 | |
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256 | eend $? "elisp-make-autoload-file: batch-update-autoloads failed" |
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257 | } |
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258 | |
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259 | # @FUNCTION: elisp-install |
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260 | # @USAGE: <subdirectory> <list of files> |
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261 | # @DESCRIPTION: |
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262 | # Install files in SITELISP directory. |
18 | |
263 | |
19 | elisp-install() { |
264 | elisp-install() { |
20 | local subdir=$1 |
265 | local subdir="$1" |
21 | dodir ${SITELISP}/${subdir} |
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22 | insinto ${SITELISP}/${subdir} |
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23 | shift |
266 | shift |
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267 | ebegin "Installing Elisp files for GNU Emacs support" |
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268 | ( # subshell to avoid pollution of calling environment |
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269 | insinto "${SITELISP}/${subdir}" |
24 | doins $@ |
270 | doins "$@" |
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271 | ) |
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272 | eend $? "elisp-install: doins failed" |
25 | } |
273 | } |
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274 | |
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275 | # @FUNCTION: elisp-site-file-install |
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276 | # @USAGE: <site-init file> [subdirectory] |
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277 | # @DESCRIPTION: |
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278 | # Install Emacs site-init file in SITELISP directory. Automatically |
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279 | # inserts a standard comment header with the name of the package (unless |
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280 | # it is already present). Tokens @SITELISP@ and @SITEETC@ are replaced |
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281 | # by the path to the package's subdirectory in SITELISP and SITEETC, |
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282 | # respectively. |
26 | |
283 | |
27 | elisp-site-file-install() { |
284 | elisp-site-file-install() { |
28 | local sitefile=$1 my_pn=${2:-${PN}} |
285 | local sf="${1##*/}" my_pn="${2:-${PN}}" ret |
29 | pushd ${S} |
286 | local header=";;; ${PN} site-lisp configuration" |
30 | cp ${sitefile} ${T} |
287 | |
31 | sed -i "s:@SITELISP@:${SITELISP}/${my_pn}:g" ${T}/$(basename ${sitefile}) |
288 | [[ ${sf} == [0-9][0-9]*-gentoo*.el ]] \ |
32 | insinto ${SITELISP} |
289 | || ewarn "elisp-site-file-install: bad name of site-init file" |
33 | doins ${T}/$(basename ${sitefile}) || die "failed to install site file" |
290 | sf="${T}/${sf/%-gentoo*.el/-gentoo.el}" |
34 | popd |
291 | ebegin "Installing site initialisation file for GNU Emacs" |
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292 | [[ $1 = "${sf}" ]] || cp "$1" "${sf}" |
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293 | sed -i -e "1{:x;/^\$/{n;bx;};/^;.*${PN}/I!s:^:${header}\n\n:;1s:^:\n:;}" \ |
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294 | -e "s:@SITELISP@:${EPREFIX}${SITELISP}/${my_pn}:g" \ |
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295 | -e "s:@SITEETC@:${EPREFIX}${SITEETC}/${my_pn}:g;\$q" "${sf}" |
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296 | ( # subshell to avoid pollution of calling environment |
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297 | insinto "${SITELISP}/site-gentoo.d" |
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298 | doins "${sf}" |
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299 | ) |
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300 | ret=$? |
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301 | rm -f "${sf}" |
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302 | eend ${ret} "elisp-site-file-install: doins failed" |
35 | } |
303 | } |
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304 | |
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305 | # @FUNCTION: elisp-site-regen |
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306 | # @DESCRIPTION: |
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307 | # Regenerate the site-gentoo.el file, based on packages' site |
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308 | # initialisation files in the /usr/share/emacs/site-lisp/site-gentoo.d/ |
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309 | # directory. |
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310 | # |
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311 | # Note: Before December 2007, site initialisation files were installed |
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312 | # in /usr/share/emacs/site-lisp/. For backwards compatibility, this |
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313 | # location is still supported when generating site-gentoo.el. |
36 | |
314 | |
37 | elisp-site-regen() { |
315 | elisp-site-regen() { |
38 | einfo "Regenerating ${SITELISP}/site-gentoo.el ..." |
316 | local sitelisp=${ROOT}${EPREFIX}${SITELISP} |
39 | einfo "" |
317 | local sf i line null="" page=$'\f' |
40 | cat <<EOF >${SITELISP}/site-gentoo.el |
318 | local -a sflist |
41 | ;;; DO NOT EDIT THIS FILE -- IT IS GENERATED AUTOMATICALLY BY PORTAGE |
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42 | ;;; ----------------------------------------------------------------- |
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43 | |
319 | |
44 | EOF |
320 | if [ ! -d "${sitelisp}" ]; then |
45 | ls ${SITELISP}/[0-9][0-9]*-gentoo.el |sort -n | \ |
321 | eerror "elisp-site-regen: Directory ${sitelisp} does not exist" |
46 | while read sf |
322 | return 1 |
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323 | fi |
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324 | |
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325 | if [ ! -d "${T}" ]; then |
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326 | eerror "elisp-site-regen: Temporary directory ${T} does not exist" |
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327 | return 1 |
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328 | fi |
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329 | |
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330 | einfon "Regenerating site-gentoo.el for GNU Emacs (${EBUILD_PHASE}) ..." |
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331 | |
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332 | # Until January 2009, elisp-common.eclass sometimes created an |
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333 | # auxiliary file for backwards compatibility. Remove any such file. |
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334 | rm -f "${sitelisp}"/00site-gentoo.el |
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335 | |
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336 | for sf in "${sitelisp}"/[0-9][0-9]*-gentoo.el \ |
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337 | "${sitelisp}"/site-gentoo.d/[0-9][0-9]*.el |
47 | do |
338 | do |
48 | einfo " Adding $(basename $sf) ..." |
339 | [ -r "${sf}" ] || continue |
49 | # Great for debugging, too noisy and slow for users though |
340 | # sort files by their basename. straight insertion sort. |
50 | # echo "(message \"Loading $sf ...\")" >>${SITELISP}/site-start.el |
341 | for ((i=${#sflist[@]}; i>0; i--)); do |
51 | cat $sf >>${SITELISP}/site-gentoo.el |
342 | [[ ${sf##*/} < ${sflist[i-1]##*/} ]] || break |
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343 | sflist[i]=${sflist[i-1]} |
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344 | done |
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345 | sflist[i]=${sf} |
52 | done |
346 | done |
53 | while read line; do einfo "${line}"; done <<EOF |
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54 | |
347 | |
55 | All site initialization for Gentoo-installed packages is now added to |
348 | cat <<-EOF >"${T}"/site-gentoo.el |
56 | /usr/share/emacs/site-lisp/site-gentoo.el; site-start.el is no longer |
349 | ;;; site-gentoo.el --- site initialisation for Gentoo-installed packages |
57 | managed by Gentoo. You are responsible for all maintenance of |
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58 | site-start.el if there is such a file. |
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59 | |
350 | |
60 | In order for this site initialization to be loaded for all users |
351 | ;;; Commentary: |
61 | automatically, as was done previously, you can add a line like this: |
352 | ;; Automatically generated by elisp-common.eclass |
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353 | ;; DO NOT EDIT THIS FILE |
62 | |
354 | |
63 | (load "/usr/share/emacs/site-lisp/site-gentoo") |
355 | ;;; Code: |
64 | |
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65 | to /usr/share/emacs/site-lisp/site-start.el. Alternatively, that line |
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66 | can be added by individual users to their initialization files, or for |
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67 | greater flexibility, users can select which of the package-specific |
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68 | initialization files in /usr/share/emacs/site-lisp to load. |
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69 | EOF |
356 | EOF |
70 | echo |
357 | # Use sed instead of cat here, since files may miss a trailing newline. |
71 | } |
358 | sed '$q' "${sflist[@]}" </dev/null >>"${T}"/site-gentoo.el |
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359 | cat <<-EOF >>"${T}"/site-gentoo.el |
72 | |
360 | |
73 | # The following Emacs Lisp compilation routine is taken from GNU |
361 | ${page} |
74 | # autotools. |
362 | (provide 'site-gentoo) |
75 | |
363 | |
76 | elisp-comp() { |
364 | ;; Local ${null}Variables: |
77 | # Copyright 1995 Free Software Foundation, Inc. |
365 | ;; no-byte-compile: t |
78 | # François Pinard <pinard@iro.umontreal.ca>, 1995. |
366 | ;; buffer-read-only: t |
79 | # |
367 | ;; End: |
80 | # This program is free software; you can redistribute it and/or modify |
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81 | # it under the terms of the GNU General Public License as published by |
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82 | # the Free Software Foundation; either version 2, or (at your option) |
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83 | # any later version. |
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84 | # |
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85 | # This program is distributed in the hope that it will be useful, |
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86 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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87 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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88 | # GNU General Public License for more details. |
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89 | # |
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90 | # You should have received a copy of the GNU General Public License |
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91 | # along with this program; if not, write to the Free Software |
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92 | # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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93 | |
368 | |
94 | # As a special exception to the GNU General Public License, if you |
369 | ;;; site-gentoo.el ends here |
95 | # distribute this file as part of a program that contains a |
370 | EOF |
96 | # configuration script generated by Autoconf, you may include it under |
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97 | # the same distribution terms that you use for the rest of that program. |
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98 | |
371 | |
99 | # This script byte-compiles all `.el' files which are part of its |
372 | if cmp -s "${sitelisp}"/site-gentoo.el "${T}"/site-gentoo.el; then |
100 | # arguments, using GNU Emacs, and put the resulting `.elc' files into |
373 | # This prevents outputting unnecessary text when there |
101 | # the current directory, so disregarding the original directories used |
374 | # was actually no change. |
102 | # in `.el' arguments. |
375 | # A case is a remerge where we have doubled output. |
103 | # |
376 | rm -f "${T}"/site-gentoo.el |
104 | # This script manages in such a way that all Emacs LISP files to |
377 | echo " no changes." |
105 | # be compiled are made visible between themselves, in the event |
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106 | # they require or load-library one another. |
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107 | |
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108 | if test $# = 0; then |
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109 | echo 1>&2 "No files given to $0" |
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110 | exit 1 |
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111 | else |
378 | else |
112 | if test -z "$EMACS" || test "$EMACS" = "t"; then |
379 | mv "${T}"/site-gentoo.el "${sitelisp}"/site-gentoo.el |
113 | # Value of "t" means we are running in a shell under Emacs. |
380 | echo |
114 | # Just assume Emacs is called "emacs". |
381 | case ${#sflist[@]} in |
115 | EMACS=emacs |
382 | 0) ewarn "... Huh? No site initialisation files found." ;; |
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383 | 1) einfo "... ${#sflist[@]} site initialisation file included." ;; |
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384 | *) einfo "... ${#sflist[@]} site initialisation files included." ;; |
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385 | esac |
116 | fi |
386 | fi |
117 | |
387 | |
118 | tempdir=elc.$$ |
388 | return 0 |
119 | mkdir $tempdir |
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120 | cp $* $tempdir |
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121 | cd $tempdir |
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122 | |
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123 | echo "(add-to-list 'load-path \"../\")" > script |
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124 | $EMACS -batch -q --no-site-file --no-init-file -l script -f batch-byte-compile *.el |
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125 | mv *.elc .. |
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126 | |
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127 | cd .. |
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128 | rm -fr $tempdir |
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129 | fi |
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130 | } |
389 | } |
131 | |
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132 | # Local Variables: *** |
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133 | # mode: shell-script *** |
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134 | # tab-width: 4 *** |
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135 | # indent-tabs-mode: t *** |
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136 | # End: *** |
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137 | |
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