xindy: correctly depend on and use MacPorts tex/perl

Closes: https://trac.macports.org/ticket/55691

tex/xindy/Portfile

@@ -4,7 +4,7 @@ PortSystem 1.0
 
 name            xindy
 version         2.5.1
-revision        2
+revision        3
 
 categories      tex textproc
 license         GPL-2+
@@ -29,11 +29,19 @@ master_sites    tex_ctan:indexing/${name}/base/
 depends_skip_archcheck clisp
 
 depends_lib     port:clisp
+depends_build-append   \
+    path:bin/perl:perl5 \
+    port:texlive-latex
 
 checksums       rmd160  8b888c589720c081720010a55e48d00e33fe0ad9 \
                 sha256  2c8ee91db7217b5776b1ee5272dd259686f7ba3ec1d25c678f75a6c03fe9ba43
 
 configure.args  --disable-docs
+configure.perl  ${prefix}/bin/perl
+configure.env-append \
+    LATEX=${prefix}/bin/latex \
+    PDFLATEX=${prefix}/bin/pdflatex \
+    CLISP=${prefix}/bin/clisp
 
 build.env       LANG=C