We want the .pc file to have the full expanded paths, so it doesn't end up with unexpanded datarootdir, etc. To achieve this we copy in the AS_AC_EXPAND macro that thomasvs did a while ago.calculate-0.9.5
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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 example:
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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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AC_DEFUN([AS_AC_EXPAND],
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[
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EXP_VAR=[$1]
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FROM_VAR=[$2]
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dnl first expand prefix and exec_prefix if necessary
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prefix_save=$prefix
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exec_prefix_save=$exec_prefix
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dnl if no prefix given, then use /usr/local, the default prefix
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if test "x$prefix" = "xNONE"; then
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prefix="$ac_default_prefix"
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fi
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dnl if no exec_prefix given, then use prefix
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if test "x$exec_prefix" = "xNONE"; then
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exec_prefix=$prefix
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fi
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full_var="$FROM_VAR"
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dnl loop until it doesn't change anymore
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while true; do
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new_full_var="`eval echo $full_var`"
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if test "x$new_full_var" = "x$full_var"; then break; fi
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full_var=$new_full_var
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done
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dnl clean up
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full_var=$new_full_var
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AC_SUBST([$1], "$full_var")
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dnl restore prefix and exec_prefix
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prefix=$prefix_save
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exec_prefix=$exec_prefix_save
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])
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