mirror of
https://github.com/jezhiggins/arabica
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60 lines
2.5 KiB
Text
60 lines
2.5 KiB
Text
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dnl @synopsis ARABICA_PREFIX_CONFIG_H [(PREFIX [,ORIG-HEADER])]
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dnl
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dnl takes the usual config.h generated header file; looks for each of
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dnl the generated "#define SOMEDEF" lines, and prefixes the defined
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dnl name (ie. makes it "#define PREFIX_SOMEDEF". The result overwrites
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dnl the input header. The PREFIX is converted to uppercase for the
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dnl conversions. If PREFIX is absent, $PACKAGE will be assumed. If
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dnl the ORIG-HEADER is absent, "config.h" will be assumed.
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dnl
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dnl In most cases, the configure.in will contain a line saying
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dnl
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dnl AC_CONFIG_HEADER(config.h)
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dnl
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dnl somewhere *before* AC_OUTPUT and a simple line saying
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dnl
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dnl AC_PREFIX_CONFIG_HEADER
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dnl
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dnl somewhere *after* AC_OUTPUT.
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dnl
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dnl @author Guido U. Draheim <guidod@gmx.de>, Jez Higgins <jez@jezuk.co.uk>
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dnl @version 2006-10-13, 2011-11-25
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dnl @license GPLWithACException
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AC_DEFUN([ARABICA_PREFIX_CONFIG_H],
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[changequote(<<, >>)dnl
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ac_prefix_conf_PKG=`echo ifelse($1, , $PACKAGE, $1)`
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ac_prefix_conf_PRE=`echo $ac_prefix_conf_PKG | tr 'abcdefghijklmnopqrstuvwxyz-' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ_'`
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ac_prefix_conf_PRE=`echo $ac_prefix_conf_PRE | sed -e '/^[0-9]/s/^/_/'`
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ac_prefix_conf_INP=`echo ifelse($2, , config.h, $2)`
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ac_prefix_conf_OUT=`echo $ac_prefix_conf_INP.out`
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ac_prefix_conf_DEF=`echo _$ac_prefix_conf_OUT | tr 'abcdefghijklmnopqrstuvwxyz./,-' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ____'`
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changequote([, ])dnl
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if test -z "$ac_prefix_conf_PKG" ; then
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AC_MSG_ERROR([no prefix for _PREFIX_CONFIG_H])
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else
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AC_MSG_RESULT(Massaging $ac_prefix_conf_INP to add prefix $ac_prefix_conf_PRE)
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if test -f $ac_prefix_conf_INP ; then
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echo '#ifndef '$ac_prefix_conf_DEF >$ac_prefix_conf_OUT
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echo '#define '$ac_prefix_conf_DEF' 1' >>$ac_prefix_conf_OUT
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echo ' ' >>$ac_prefix_conf_OUT
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echo /'*' $ac_prefix_conf_OUT. Generated automatically at end of configure. '*'/ >>$ac_prefix_conf_OUT
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echo 's/#undef */#undef '$ac_prefix_conf_PRE'_/' >conftest.sed
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echo 's/#define *\([A-Za-z0-9_]*\)\(.*\)/#ifndef '$ac_prefix_conf_PRE"_\\1 \\" >>conftest.sed
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echo '#define '$ac_prefix_conf_PRE"_\\1 \\2 \\" >>conftest.sed
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echo '#endif/' >>conftest.sed
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sed -f conftest.sed $ac_prefix_conf_INP >>$ac_prefix_conf_OUT
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echo ' ' >>$ac_prefix_conf_OUT
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echo '/*' $ac_prefix_conf_DEF '*/' >>$ac_prefix_conf_OUT
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echo '#endif' >>$ac_prefix_conf_OUT
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rm $ac_prefix_conf_INP
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mv $ac_prefix_conf_OUT $ac_prefix_conf_INP
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else
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AC_MSG_ERROR([input file $ac_prefix_conf_IN does not exist, dnl
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skip generating $ac_prefix_conf_OUT])
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fi
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rm -f conftest.*
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fi])
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