mkvtoolnix/ac/ax_docbook.m4

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AC_ARG_WITH(docbook_xsl_root,
AC_HELP_STRING([--with-docbook-xsl-root=dir],[use dir as base for DocBook XSL stylesheets instead of looking for it; must contain the "manpages/docbook.xsl" sub-directory and file]),
[ DOCBOOK_ROOT="$with_docbook_xsl_root" ],)
if ! test -z "$DOCBOOK_ROOT"; then
AC_MSG_CHECKING([for DocBook XSL root directory])
AC_MSG_RESULT([using supplied $DOCBOOK_ROOT])
else
AC_MSG_CHECKING([for DocBook XSL root directory])
for i in `ls -d /usr/share/xml/docbook/xsl-stylesheets*-nons 2> /dev/null` \
/usr/share/xml/docbook/stylesheet/xsl/nwalsh \
/usr/share/xml/docbook/stylesheet/nwalsh \
`ls -d /usr/share/sgml/docbook/xsl-stylesheets* /usr/share/xml/docbook/xsl-stylesheets* 2> /dev/null` \
; do
if test -f "$i/manpages/docbook.xsl"; then
DOCBOOK_ROOT="$i"
break
elif test -f "$i/current/manpages/docbook.xsl"; then
DOCBOOK_ROOT="$i/current"
break
fi
done
if test -z "$DOCBOOK_ROOT"; then
AC_MSG_RESULT([not found])
AC_MSG_ERROR([DocBook XSL stylesheets are required for building.])
else
AC_MSG_RESULT([$DOCBOOK_ROOT])
fi
fi
# It's just rude to go over the net to build
XSLTPROC_FLAGS=--nonet
AC_ARG_WITH(xsltproc,
AC_HELP_STRING([--with-xsltproc=prog],[use prog instead of looking for xsltproc]),
[ XSLTPROC="$with_xsltproc" ],)
if ! test -z "$XSLTPROC"; then
AC_MSG_CHECKING(for xsltproc)
AC_MSG_RESULT(using supplied $XSLTPROC)
else
AC_PATH_PROG(XSLTPROC, xsltproc)
fi
if test -z "$XSLTPROC" -o ! -x "$XSLTPROC"; then
AC_MSG_ERROR([xsltproc wasn't found])
fi
AC_CACHE_CHECK([whether xsltproc works],
[ac_cv_xsltproc_works],
[
ac_cv_xsltproc_works=no
"$XSLTPROC" "$XSLTPROC_FLAGS" "$DOCBOOK_ROOT/manpages/docbook.xsl" >/dev/null 2>/dev/null << END
<?xml version="1.0" encoding='ISO-8859-1'?>
<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
<book id="test">
</book>
END
if test "$?" = 0; then
ac_cv_xsltproc_works=yes
fi
])
if test x"$ac_cv_xsltproc_works" != xyes; then
AC_MSG_ERROR([xsltproc doesn't work with DocBook's $DOCBOOK_ROOT/manpages/docbook.xsl])
fi
AC_SUBST(DOCBOOK_ROOT)
AC_SUBST(XSLTPROC)
AC_SUBST(XSLTPROC_FLAGS)