Add a build system and configure it work properly with citations.

_shake/Build.hs

@@ -0,0 +1,42 @@
+import Development.Shake
+import Development.Shake.FilePath
+
+target :: FilePath
+target = "candidature"
+
+buildDir :: FilePath
+buildDir = "_build"
+
+fullTarget :: FilePath
+fullTarget = buildDir </> target <.> "pdf"
+
+pdflatexCmd :: [String]
+pdflatexCmd = ["pdflatex", "-halt-on-error", "-output-directory=" ++ buildDir, target]
+
+-- | Filters out the files which contain '#'.
+noEmacsFiles :: [FilePath] -> [FilePath]
+noEmacsFiles = filter ('#' `notElem`)
+
+main :: IO ()
+main = shakeArgs shakeOptions { shakeFiles = buildDir } $ do
+  want [ fullTarget ]
+
+  fullTarget %> \out -> do
+    src <- getDirectoryFiles "" ["*.tex", "*.sty"]
+    need $ (out -<.> "bbl") : noEmacsFiles src
+
+    cmd pdflatexCmd
+
+  fullTarget -<.> "bbl" %> \out -> do
+    bibs <- getDirectoryFiles "bib" ["*.bib"]
+    need $ map ("bib" </>) $ noEmacsFiles bibs
+
+    exists <- doesFileExist $ fullTarget -<.> "aux"
+    if not exists
+      then cmd pdflatexCmd
+      else return ()
+
+    cmd ["biber", dropExtension out]
+
+  phony "clean" $ do
+    removeFilesAfter "_build" ["//*"]

candidature.sty

@@ -1,3 +1,5 @@
 \NeedsTeXFormat{LaTeX2e}
 \ProvidesPackage{candidature}[2015/05/14 Style for Sergiu Ivanov's Applications]
 \typeout{Style for Sergiu Ivanov's Applications}
+
+\usepackage[backend=biber]{biblatex}

candidature.tex

@@ -4,6 +4,15 @@
 
 \usepackage[french]{babel}
 
+\addbibresource{bib/hdr_noverlan.bib}
+\addbibresource{bib/hdr_verlan.bib}
+\addbibresource{bib/insdel.bib}
+\addbibresource{bib/pn.bib}
+\addbibresource{bib/psystems.bib}
+
 \begin{document}
+
+\cite{Korec}
+
 Hello World
 \end{document}