Reduce unnecessary work in dependency builds

- Remove invalid -DFORTRAN_LIBRARIES=ON from HDF5 (not a real HDF5
  variable); explicitly disable features MFC doesn't need:
  HDF5_BUILD_CPP_LIB, HDF5_BUILD_FORTRAN, HDF5_ENABLE_PARALLEL
- Disable ZFP compression in Silo (MFC never uses Silo compression)
- Add GIT_SHALLOW to Silo clone (was missing unlike other deps)

Author: sbryngelson

toolchain/dependencies/CMakeLists.txt

@@ -61,11 +61,13 @@ if (MFC_HDF5)
             GIT_PROGRESS   ON
             CMAKE_ARGS     "-DCMAKE_INSTALL_PREFIX=${CMAKE_INSTALL_PREFIX}"
                             -DBUILD_SHARED_LIBS=OFF
-                            -DFORTRAN_LIBRARIES=ON
                             -DBUILD_TESTING=OFF
                             -DHDF5_BUILD_UTILS=OFF
                             -DHDF5_BUILD_TOOLS=ON
                             -DHDF5_BUILD_EXAMPLES=OFF
+                            -DHDF5_BUILD_CPP_LIB=OFF
+                            -DHDF5_BUILD_FORTRAN=OFF
+                            -DHDF5_ENABLE_PARALLEL=OFF
         )
     endif()
 endif()
@@ -83,12 +85,14 @@ if (MFC_SILO)
         ExternalProject_Add(silo
             GIT_REPOSITORY "https://github.com/LLNL/Silo"
             GIT_TAG        0cddaa6865fb49ae7b2110fa1b6f2709592abe0b
+            GIT_SHALLOW    ON
             GIT_PROGRESS   ON
             PATCH_COMMAND  "${GIT_EXECUTABLE}" stash
                         && "${GIT_EXECUTABLE}" apply "${CMAKE_SOURCE_DIR}/Silo.patch"
             CMAKE_ARGS     -DSILO_ENABLE_SHARED=OFF
                            -DSILO_ENABLE_SILOCK=OFF
                            -DSILO_ENABLE_BROWSER=OFF
+                           -DSILO_ENABLE_ZFP=OFF
                            -DFIND_LIBRARY_USE_LIB64_PATHS=ON
                            "-DCMAKE_PREFIX_PATH=${CMAKE_PREFIX_PATH}"
                            "-DCMAKE_FIND_ROOT_PATH=${CMAKE_FIND_ROOT_PATH}"