Mercurial > pidgin3 / annotate

m4macros/as-ac-expand.m4@37c5e05d7b5d (annotated)

m4macros/as-ac-expand.m4

Sun, 28 Jun 2015 15:01:48 -0400

author
James Geboski <jgeboski@gmail.com>
date
Sun, 28 Jun 2015 15:01:48 -0400
branch
facebook
changeset 37279
37c5e05d7b5d
parent 35850
1abeda205d6c
permissions
-rw-r--r--

facebook: prevent HTTP responses from being truncated

35850
1abeda205d6c cross-win32: make dirs more flexible, add them to the config.h
Tomasz Wasilczyk <twasilczyk@pidgin.im>
parents:
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1 dnl as-ac-expand.m4 0.2.0 -*- autoconf -*-
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2 dnl autostars m4 macro for expanding directories using configure's prefix
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3
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4 dnl (C) 2003, 2004, 2005 Thomas Vander Stichele <thomas at apestaart dot org>
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5
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6 dnl Copying and distribution of this file, with or without modification,
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7 dnl are permitted in any medium without royalty provided the copyright
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8 dnl notice and this notice are preserved.
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9
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10 dnl AS_AC_EXPAND(VAR, CONFIGURE_VAR)
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11
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12 dnl example:
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13 dnl AS_AC_EXPAND(SYSCONFDIR, $sysconfdir)
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parents:
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14 dnl will set SYSCONFDIR to /usr/local/etc if prefix=/usr/local
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15
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16 AC_DEFUN([AS_AC_EXPAND],
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17 [
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18 EXP_VAR=[$1]
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19 FROM_VAR=[$2]
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20
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21 dnl first expand prefix and exec_prefix if necessary
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22 prefix_save=$prefix
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23 exec_prefix_save=$exec_prefix
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24
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25 dnl if no prefix given, then use /usr/local, the default prefix
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26 if test "x$prefix" = "xNONE"; then
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27 prefix="$ac_default_prefix"
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28 fi
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29 dnl if no exec_prefix given, then use prefix
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30 if test "x$exec_prefix" = "xNONE"; then
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31 exec_prefix=$prefix
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32 fi
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33
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34 full_var="$FROM_VAR"
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35 dnl loop until it doesn't change anymore
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36 while true; do
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Tomasz Wasilczyk <twasilczyk@pidgin.im>
parents:
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37 new_full_var="`eval echo $full_var`"
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parents:
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38 if test "x$new_full_var" = "x$full_var"; then break; fi
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parents:
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39 full_var=$new_full_var
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Tomasz Wasilczyk <twasilczyk@pidgin.im>
parents:
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40 done
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41
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42 dnl clean up
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43 full_var=$new_full_var
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44 AC_SUBST([$1], "$full_var")
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45
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46 dnl restore prefix and exec_prefix
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47 prefix=$prefix_save
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48 exec_prefix=$exec_prefix_save
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49 ])

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