addSGMLCatalogs () { if test -d $1/sgml/dtd; then for i in $(find $1/sgml/dtd -name docbook.cat); do export SGML_CATALOG_FILES="${SGML_CATALOG_FILES:+:}$i" done fi } if test -z "$sgmlHookDone"; then sgmlHookDone=1 # Set http_proxy and ftp_proxy to a invalid host to prevent # xmllint and xsltproc from trying to download DTDs from the # network even when --nonet is not given. That would be impure. # (Note that .invalid is a reserved domain guaranteed not to # work.) export http_proxy=http://nodtd.invalid/ export ftp_proxy=http://nodtd.invalid/ export SGML_CATALOG_FILES envHooks+=(addSGMLCatalogs) fi