Filter: Fix function comparison

[thirdparty/bird.git] / doc / sgml2html

diff --git a/doc/sgml2html b/doc/sgml2html
index a5bbee9eb8abd0c8747808a13f8207665765d33d..ea8e8c92b5dd4a7cb9dd8dce53f3750f4badddb3 100755 (executable)
--- a/doc/sgml2html
+++ b/doc/sgml2html
@@ -34,7 +34,12 @@ $progs = {
   "GROFFMACRO" => "-ms",
   "AWK" => "/usr/share/linuxdoc-tools/awkwhich"
 };
-$ENV{"SGML_CATALOG_FILES"} = "$DataDir/dtd/catalog";
+
+if (! -x $progs->{"NSGMLS"})
+  { $progs->{"NSGMLS"} = "/usr/bin/onsgmls"; }
+
+$ENV{"SGML_CATALOG_FILES"} = "$DataDir/dtd/catalog" .
+  (defined $ENV{SGML_CATALOG_FILES} ? ":$ENV{SGML_CATALOG_FILES}" : "");
 
 require "$FindBin::Bin/LinuxDocTools.pm";
 &LinuxDocTools::init;