Fix issues.

pyltk/documentclass.py

@@ -90,7 +90,8 @@ class documentclass(element):
             'content': super().content()
         })
 
-    def compile(self, outfile, infile='auto', outlog=None):
+    def compile(self, outfile, infile='auto', outlog=None,
+                compile_twice=False):
         """ Compile the given document into a PDF file.
 
         If infile is not None, and infile already exists, the document
@@ -105,7 +106,8 @@ class documentclass(element):
             written. If None, a temporary file will be created
             and then erased. If 'auto', file will be saved in
             an automatic folder for future use.
-          - outlog
+          - outlog Output loging stream (default stdout).
+          - compile_twice Set to true to compile the document twice.
         """
 
         outdir = os.path.dirname(outfile)
@@ -155,7 +157,10 @@ class documentclass(element):
             call = ['pdflatex', '-halt-on-error',
                     '-output-directory', output_aux_folder,
                     '-jobname', outfile, infile]
-            if subprocess.call(call, stdout=outlog) == 0:
+            res = subprocess.call(call, stdout=outlog)
+            if compile_twice:
+                res = subprocess.call(call, stdout=outlog)
+            if res == 0:
                 os.rename(
                     os.path.join(
                         output_aux_folder, outfile + '.pdf'),