[gentoo-dev] [RFC, PATCH] db.eclass: support Prefix

[heroxbd]

From: Benda Xu <hero...@gentoo.org>

  ROOT and D are replaced with EROOT and ED.
---
 eclass/db.eclass | 30 ++++++++++++++++++------------
 1 file changed, 18 insertions(+), 12 deletions(-)

diff --git a/eclass/db.eclass b/eclass/db.eclass
index c46c431ea9c..0c0d0ef14cd 100644
--- a/eclass/db.eclass
+++ b/eclass/db.eclass
@@ -17,7 +17,8 @@ DEPEND="test? ( >=dev-lang/tcl-8.4 )"
 RDEPEND=""
 
 db_fix_so() {
-       LIB="${ROOT}/usr/$(get_libdir)"
+       has "${EAPI:-0}" 0 1 2 && ! use prefix && EROOT="${ROOT}"
+       LIB="${EROOT}/usr/$(get_libdir)"
 
        cd "${LIB}"
 
@@ -50,7 +51,7 @@ db_fix_so() {
 
        # do the same for headers now
        # but since there are only two of them, just overwrite them
-       cd "${ROOT}"/usr/include
+       cd "${EROOT}"/usr/include
        target=`find . -maxdepth 1 -type d -name 'db[0-9]*' | sort -n |cut -d/ 
-f2- | tail -n1`
        if [ -n "${target}" ] && [ -e "${target}/db.h" ] && ( ! [[ -e db.h ]] 
|| [[ -h db.h ]] ); then
                einfo "Creating db.h symlinks to ${target}"
@@ -67,19 +68,21 @@ db_fix_so() {
 }
 
 db_src_install_doc() {
+       has "${EAPI:-0}" 0 1 2 && ! use prefix && ED="${D}"
        # not everybody wants this wad of documentation as it is primarily API 
docs
        if use doc; then
                dodir /usr/share/doc/${PF}/html
-               mv "${D}"/usr/docs/* "${D}"/usr/share/doc/${PF}/html/
-               rm -rf "${D}"/usr/docs
+               mv "${ED}"/usr/docs/* "${ED}"/usr/share/doc/${PF}/html/
+               rm -rf "${ED}"/usr/docs
        else
-               rm -rf "${D}"/usr/docs
+               rm -rf "${ED}"/usr/docs
        fi
 
        db_src_install_examples
 }
 
 db_src_install_examples() {
+       has "${EAPI:-0}" 0 1 2 && ! use prefix && ED="${D}"
        if use examples ; then
                local langs="c cxx stl"
                [[ "${IUSE/java}" != "${IUSE}" ]] \
@@ -90,15 +93,16 @@ db_src_install_examples() {
                        src="${S}/../examples_${i}/"
                        if [ -f "${src}" ]; then
                                dodir "${destdir}"
-                               cp -ra "${src}" "${D}${destdir}/"
+                               cp -ra "${src}" "${ED}${destdir}/"
                        fi
                done
        fi
 }
 
 db_src_install_usrbinslot() {
+       has "${EAPI:-0}" 0 1 2 && ! use prefix && ED="${D}"
        # slot all program names to avoid overwriting
-       for fname in "${D}"/usr/bin/db*
+       for fname in "${ED}"/usr/bin/db*
        do
                dn="$(dirname "${fname}")"
                bn="$(basename "${fname}")"
@@ -109,18 +113,20 @@ db_src_install_usrbinslot() {
 }
 
 db_src_install_headerslot() {
+       has "${EAPI:-0}" 0 1 2 && ! use prefix && ED="${D}"
        # install all headers in a slotted location
        dodir /usr/include/db${SLOT}
-       mv "${D}"/usr/include/*.h "${D}"/usr/include/db${SLOT}/
+       mv "${ED}"/usr/include/*.h "${ED}"/usr/include/db${SLOT}/
 }
 
 db_src_install_usrlibcleanup() {
-       LIB="${D}/usr/$(get_libdir)"
+       has "${EAPI:-0}" 0 1 2 && ! use prefix && ED="${D}"
+       LIB="${ED}/usr/$(get_libdir)"
        # Clean out the symlinks so that they will not be recorded in the
        # contents (bug #60732)
 
-       if [ "${D}" = "" ]; then
-               die "Calling clean_links while \$D not defined"
+       if [ "${ED}" = "" ]; then
+               die "Calling clean_links while \$ED not defined"
        fi
 
        if [ -e "${LIB}"/libdb.a ] && [ ! -e "${LIB}"/libdb-${SLOT}.a ]; then
@@ -139,7 +145,7 @@ db_src_install_usrlibcleanup() {
        find "${LIB}" -maxdepth 1 -type l -name 'libdb[1._-]*a' -exec rm \{} \;
 
        rm -f \
-               "${D}"/usr/include/{db,db_185}.h \
+               "${ED}"/usr/include/{db,db_185}.h \
                "${LIB}"/libdb{,_{cxx,sql,stl,java,tcl}}.a
 }
 
-- 
2.15.0