FIX:

- rename some entries (COMPILE -> COMPILER, and the converters -> _CONVERTER)
- make sure that Window system are given a chance to find Latex and the converters if MikTex and GhostScript are installed (but not in the PATH)

Modules/FindLATEX.cmake

@@ -2,35 +2,91 @@
 # This module finds if Latex is installed and determines where the
 # executables are. This code sets the following variables:
 #
-#  LATEX_COMPILE        = the full path to the LaTeX compiler
-#  BIBTEX_COMPILE       = the full path to the BibTeX compiler
-#  DVIPDF_COMPILE       = the full path to the DVIPDF converter
-#  PS2PDF_COMPILE       = the full path to the PS2PDF converter
-#  DVIPS_COMPILE        = the full path to the DVIPS converter
-#  MAKEINDEX_COMPILE    = the full path to the MakeIndex compiler
+#  LATEX_COMPILER        = the full path to the LaTeX compiler
+#  BIBTEX_COMPILER       = the full path to the BibTeX compiler
+#  MAKEINDEX_COMPILER    = the full path to the MakeIndex compiler
+#  DVIPS_CONVERTER       = the full path to the DVIPS converter
+#  DVIPDF_CONVERTER      = the full path to the DVIPDF converter
+#  PS2PDF_CONVERTER      = the full path to the PS2PDF converter
 #
 
-FIND_PROGRAM(LATEX_COMPILE
+IF (WIN32)
+
+  # Try to find the MikTex binary path (look for its package manager).
+
+  FIND_PATH(MIKTEX_BINARY_PATH mpm.exe
+    "[HKEY_LOCAL_MACHINE\\SOFTWARE\\MiK\\MiKTeX\\CurrentVersion\\MiKTeX;Install Root]/miktex/bin"
+    DOC 
+    "Path to the MikTex binary directory."
+  )
+  MARK_AS_ADVANCED(MIKTEX_BINARY_PATH)
+
+  # Try to find the GhostScript binary path (look for gswin32).
+
+  GET_FILENAME_COMPONENT(GHOSTSCRIPT_BINARY_PATH_FROM_REGISTERY_8_00
+     "[HKEY_LOCAL_MACHINE\\SOFTWARE\\AFPL Ghostscript\\8.00;GS_DLL]" PATH
+  )
+
+  GET_FILENAME_COMPONENT(GHOSTSCRIPT_BINARY_PATH_FROM_REGISTERY_7_04
+     "[HKEY_LOCAL_MACHINE\\SOFTWARE\\AFPL Ghostscript\\7.04;GS_DLL]" PATH
+  )
+
+  FIND_PATH(GHOSTSCRIPT_BINARY_PATH gswin32.exe
+    ${GHOSTSCRIPT_BINARY_PATH_FROM_REGISTERY_8_00}
+    ${GHOSTSCRIPT_BINARY_PATH_FROM_REGISTERY_7_04}
+    DOC "Path to the GhostScript binary directory."
+  )
+  MARK_AS_ADVANCED(GHOSTSCRIPT_BINARY_PATH)
+
+  FIND_PATH(GHOSTSCRIPT_LIBRARY_PATH ps2pdf13.bat
+    "${GHOSTSCRIPT_BINARY_PATH}/../lib"
+    DOC "Path to the GhostScript library directory."
+  )
+  MARK_AS_ADVANCED(GHOSTSCRIPT_LIBRARY_PATH)
+
+ENDIF (WIN32)
+
+FIND_PROGRAM(LATEX_COMPILER
   NAMES latex
+  PATHS ${MIKTEX_BINARY_PATH}
 )
 
-FIND_PROGRAM(BIBTEX_COMPILE
+FIND_PROGRAM(BIBTEX_COMPILER
   NAMES bibtex
+  PATHS ${MIKTEX_BINARY_PATH}
 )
 
-FIND_PROGRAM(DVIPDF_COMPILE
-  NAMES dvipdf
-)
-
-FIND_PROGRAM(DVIPS_COMPILE
-  NAMES dvips
-)
-
-FIND_PROGRAM(MAKEINDEX_COMPILE
+FIND_PROGRAM(MAKEINDEX_COMPILER
   NAMES makeindex
+  PATHS ${MIKTEX_BINARY_PATH}
 )
 
-FIND_PROGRAM(PS2PDF_COMPILE
-  NAMES ps2pdf
+FIND_PROGRAM(DVIPS_CONVERTER
+  NAMES dvips
+  PATHS ${MIKTEX_BINARY_PATH}
 )
 
+FIND_PROGRAM(DVIPDF_CONVERTER
+  NAMES dvipdf
+  PATHS ${GHOSTSCRIPT_LIBRARY_PATH}
+)
+
+IF (WIN32)
+  FIND_PROGRAM(PS2PDF_CONVERTER
+    NAMES ps2pdf13.bat
+    PATHS ${GHOSTSCRIPT_LIBRARY_PATH}
+  )
+ELSE (WIN32)
+  FIND_PROGRAM(PS2PDF_CONVERTER
+    NAMES ps2pdf
+  )
+ENDIF (WIN32)
+
+MARK_AS_ADVANCED(
+  LATEX_COMPILER
+  BIBTEX_COMPILER
+  MAKEINDEX_COMPILER
+  DVIPDF_CONVERTER
+  DVIPS_CONVERTER
+  PS2PDF_CONVERTER
+)