1 files changed, 31 insertions, 0 deletions
diff --git a/Master/texmf-dist/doc/support/make4ht/extensions/latexmk.lua b/Master/texmf-dist/doc/support/make4ht/extensions/latexmk.lua
new file mode 100644
index 00000000000..bf4dcdde5a4
--- /dev/null
+++ b/Master/texmf-dist/doc/support/make4ht/extensions/latexmk.lua
@@ -0,0 +1,31 @@
+-- use Latexmk in first LaTeX call
+-- only in the first call, because we don't need to execute  biber, etc. in the subsequent
+-- LaTeX calls, these are only for resolving the cross-references
+local M = {}
+function M.modify_build(make)
+  local used = false
+  local first 
+  local build_seq = make.build_seq
+  -- find first htlatex call in the build sequence
+  for pos,v in ipairs(build_seq) do
+    if v.name == "htlatex" and not first then
+      first = pos
+    end
+  end
+  -- if htlatex was found
+  if first then
+    -- add dummy latexmk call to the build sequence
+    make:latexmk {}
+    -- replace name, command and type in the first htlatex
+    -- call with values from the dummy latexmk call
+    local replaced = build_seq[first]
+    local latexmk = build_seq[#build_seq]
+    replaced.name = latexmk.name
+    replaced.command = latexmk.command
+    replaced.type = latexmk.type
+    -- remove the dummy latexmk
+    table.remove(build_seq)
+  end
+  return make
+end
+return M