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dnl as-ac-expand.m4 0.2.0 -*- autoconf -*- |
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dnl autostars m4 macro for expanding directories using configure's prefix |
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dnl (C) 2003, 2004, 2005 Thomas Vander Stichele <thomas at apestaart dot org> |
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dnl Copying and distribution of this file, with or without modification, |
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dnl are permitted in any medium without royalty provided the copyright |
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dnl notice and this notice are preserved. |
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dnl AS_AC_EXPAND(VAR, CONFIGURE_VAR) |
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dnl AS_AC_EXPAND(VAR, CONFIGURE_VAR) |
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dnl |
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dnl example |
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dnl example: |
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dnl AS_AC_EXPAND(SYSCONFDIR, $sysconfdir) |
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dnl AS_AC_EXPAND(SYSCONFDIR, $sysconfdir) |
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dnl will set SYSCONFDIR to /usr/local/etc if prefix=/usr/local |
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dnl will set SYSCONFDIR to /usr/local/etc if prefix=/usr/local |
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dnl if no prefix given, then use /usr/local, the default prefix |
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dnl if no prefix given, then use /usr/local, the default prefix |
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if test "x$prefix" = "xNONE"; then |
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if test "x$prefix" = "xNONE"; then |
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prefix=$ac_default_prefix |
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prefix="$ac_default_prefix" |
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fi |
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fi |
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dnl if no exec_prefix given, then use prefix |
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dnl if no exec_prefix given, then use prefix |
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if test "x$exec_prefix" = "xNONE"; then |
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if test "x$exec_prefix" = "xNONE"; then |
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dnl loop until it doesn't change anymore |
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dnl loop until it doesn't change anymore |
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while true; do |
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while true; do |
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new_full_var="`eval echo $full_var`" |
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new_full_var="`eval echo $full_var`" |
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if test "x$new_full_var"="x$full_var"; then break; fi |
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if test "x$new_full_var" = "x$full_var"; then break; fi |
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full_var=$new_full_var |
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full_var=$new_full_var |
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done |
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done |
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