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-rw-r--r--template/Doxyfile.tmpl2
1 files changed, 1 insertions, 1 deletions
diff --git a/template/Doxyfile.tmpl b/template/Doxyfile.tmpl
index 0fd9462c69..34a42983ce 100644
--- a/template/Doxyfile.tmpl
+++ b/template/Doxyfile.tmpl
@@ -12,7 +12,7 @@ unless miniruby
miniruby = './miniruby$(EXEEXT) -I$(srcdir)/lib -I$(EXTOUT)/common -I./- -r$(srcdir)/ext/purelib.rb'
RbConfig.expand(miniruby, RbConfig::CONFIG.merge("srcdir"=>srcdir))
end
-dot = RbConfig::CONFIG['DOT']
+dot = RbConfig::CONFIG['DOT'] || ""
have_dot = dot.empty? ? "NO" : "YES"
%>
#---------------------------------------------------------------------------