pay attention to DESTDIR when building with NO_PERL_MAKEMAKER

Building with prefix=/some/where and temporarily installing it to
elsewhere for tar'ing up is done with:

    make prefix=/some/where
    make prefix=/some/where DESTDIR=/else/where install

Make handcrafted perl/perl.mak without NO_PERL_MAKEMAKER honour DESTDIR.

Ancient ExtUtils::MakeMaker (pre 6.11?) has the same issue, but recent
versions of Perl ships with at leat 6.17; this patch does not address that
issue.

Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/perl/Makefile b/perl/Makefile
index e3dd1a5547c471208c445d77263ee46e64b37451..4ab21d61b808d2e396419fb41419bcea7ab3cde4 100644 (file)
--- a/perl/Makefile
+++ b/perl/Makefile
@@ -29,11 +29,11 @@ $(makfile): ../GIT-CFLAGS Makefile
        '$(PERL_PATH_SQ)' -MError -e 'exit($$Error::VERSION < 0.15009)' || \
        echo '  cp private-Error.pm blib/lib/Error.pm' >> $@
        echo install: >> $@
-       echo '  mkdir -p "$(instdir_SQ)"' >> $@
-       echo '  $(RM) "$(instdir_SQ)/Git.pm"; cp Git.pm "$(instdir_SQ)"' >> $@
-       echo '  $(RM) "$(instdir_SQ)/Error.pm"' >> $@
+       echo '  mkdir -p "$$(DESTDIR)$(instdir_SQ)"' >> $@
+       echo '  $(RM) "$$(DESTDIR)$(instdir_SQ)/Git.pm"; cp Git.pm "$$(DESTDIR)$(instdir_SQ)"' >> $@
+       echo '  $(RM) "$$(DESTDIR)$(instdir_SQ)/Error.pm"' >> $@
        '$(PERL_PATH_SQ)' -MError -e 'exit($$Error::VERSION < 0.15009)' || \
-       echo '  cp private-Error.pm "$(instdir_SQ)/Error.pm"' >> $@
+       echo '  cp private-Error.pm "$$(DESTDIR)$(instdir_SQ)/Error.pm"' >> $@
        echo instlibdir: >> $@
        echo '  echo $(instdir_SQ)' >> $@
 else