Remove ill-maintained pdf generation.

CMakeLists.txt

@@ -1069,12 +1069,10 @@ if(NETCDF_ENABLE_DOXYGEN)
   option(NETCDF_ENABLE_DOXYGEN_BUILD_RELEASE_DOCS "Build release documentation.  This is of interest only to the netCDF developers." OFF)
   if(NETCDF_ENABLE_DOXYGEN_BUILD_RELEASE_DOCS)
     set(DOXYGEN_CSS_FILE "${CMAKE_SOURCE_DIR}/docs/release.css" CACHE STRING "")
-    set(DOXYGEN_HEADER_FILE "${CMAKE_SOURCE_DIR}/docs/release_header.html" CACHE STRING "")
     set(DOXYGEN_SEARCHENGINE "NO" CACHE STRING "")
     set(NETCDF_ENABLE_DOXYGEN_SERVER_BASED_SEARCH NO CACHE STRING "")
   else()
     set(DOXYGEN_CSS_FILE "" CACHE STRING "")
-    set(DOXYGEN_HEADER_FILE "" CACHE STRING "")
     set(DOXYGEN_SEARCHENGINE "YES" CACHE STRING "")
 
     # If not using release document configuration,
@@ -1096,14 +1094,6 @@ if(NETCDF_ENABLE_DOXYGEN)
     set(SHOW_DOXYGEN_TODO_LIST NO CACHE STRING "")
   endif(NETCDF_DOXYGEN_ENABLE_TASKS)
 
-  option(NETCDF_ENABLE_DOXYGEN_PDF_OUTPUT "[EXPERIMENTAL] Turn on PDF output for Doxygen-generated documentation." OFF)
-
-  if(NETCDF_ENABLE_DOXYGEN_PDF_OUTPUT)
-    set(NC_NETCDF_ENABLE_DOXYGEN_PDF_OUTPUT "YES" CACHE STRING "")
-  else()
-    set(NC_NETCDF_ENABLE_DOXYGEN_PDF_OUTPUT "NO" CACHE STRING "")
-  endif()
-
   find_program(NC_DOT NAMES dot)
   # Specify whether or not 'dot' was found on the system path.
   if(NC_DOT)

configure.ac

@@ -290,7 +290,6 @@ AM_CONDITIONAL([DOXYGEN_BUILD_RELEASE_DOCS], [test "x$enable_doxygen_build_relea
 
 if test $enable_doxygen_build_release_docs = yes; then
    AC_SUBST([DOXYGEN_CSS_FILE], ["release.css"])
-   AC_SUBST([DOXYGEN_HEADER_FILE], ["release_header.html"])
    AC_SUBST([DOXYGEN_SEARCHENGINE], ["NO"])
 else
    AC_SUBST([DOXYGEN_CSS_FILE], [])

docs/Doxyfile.in

@@ -1987,7 +1987,7 @@ EXTRA_SEARCH_MAPPINGS  =
 # If the GENERATE_LATEX tag is set to YES, doxygen will generate LaTeX output.
 # The default value is: YES.
 
-GENERATE_LATEX         = @NC_NETCDF_ENABLE_DOXYGEN_PDF_OUTPUT@
+GENERATE_LATEX         = 
 
 # The LATEX_OUTPUT tag is used to specify where the LaTeX docs will be put. If a
 # relative path is entered the value of OUTPUT_DIRECTORY will be put in front of