diff --git a/CMakeLists.txt b/CMakeLists.txt
index d0dc010bd1c..11cdcf8a540 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -252,6 +252,11 @@ else()
   find_package (PnetCDF COMPONENTS C)
 endif()
 
+# Did we find pnetCDF? If so, set _PNETCDF in config.h.
+if (PnetCDF_C_FOUND)
+  set(_PNETCDF 1)
+endif ()
+
 #==============================================================================
 #  INCLUDE SOURCE DIRECTORIES
 #==============================================================================
@@ -312,6 +317,11 @@ CHECK_C_SOURCE_COMPILES("
 #endif
 int main() {return 0;}" HAVE_NETCDF_PAR)
 
+# Set this synonym for HAVE_NETCDF_PAR. It is defined in config.h.
+if (HAVE_NETCDF_PAR)
+  set(_NETCDF4 1)
+endif ()
+
 ###
 # Check to see if szip write capability is present in netcdf-c.
 ###
diff --git a/cmake_config.h.in b/cmake_config.h.in
index b7ed181b372..7561db067df 100644
--- a/cmake_config.h.in
+++ b/cmake_config.h.in
@@ -30,15 +30,22 @@
 
 #define USE_VARD @USE_VARD@
 
+/* Does netCDF support netCDF/HDF5 files? */
+#cmakedefine HAVE_NETCDF4
+
+/* Does netCDF support parallel I/O for netCDF/HDF5 files? */
+#cmakedefine HAVE_NETCDF_PAR
+
+/* Does PIO support netCDF/HDF5 files? (Will be same as
+ * HAVE_NETCDF_PAR). */
+#cmakedefine _NETCDF4
+
 /* Does netCDF and HDF5 support parallel I/O filters? */
 #cmakedefine HAVE_PAR_FILTERS
 
 /* Was PIO built with netCDF integration? */
 #cmakedefine NETCDF_INTEGRATION
 
-/* Does PIO support netCDF/HDF5 files? */
-#cmakedefine _NETCDF4
-
 /* Does PIO support using pnetcdf for I/O? */
 #cmakedefine _PNETCDF
 
diff --git a/libpio.settings.in b/libpio.settings.in
index 7eefe3134fa..4e88e6a01d0 100644
--- a/libpio.settings.in
+++ b/libpio.settings.in
@@ -32,4 +32,6 @@ Parallel Filters:	@HAS_PAR_FILTERS@
 NetCDF/HDF5 Support:	@HAS_NETCDF4@
 NetCDF/HDF5 Par I/O:	@HAS_NETCDF4_PAR@
 NetCDF Integration:	@HAS_NETCDF_INTEGRATION@
+PIO Logging:		@HAS_LOGGING@
+MPIEXEC:		@WITH_MPIEXEC@
 
diff --git a/src/clib/CMakeLists.txt b/src/clib/CMakeLists.txt
index 8d37fc812f3..30d25ac0471 100644
--- a/src/clib/CMakeLists.txt
+++ b/src/clib/CMakeLists.txt
@@ -94,32 +94,19 @@ endif ()
 if (NetCDF_C_FOUND)
   target_include_directories (pioc
     PUBLIC ${NetCDF_C_INCLUDE_DIRS})
-  target_compile_definitions (pioc
-    PUBLIC _NETCDF)
   target_link_libraries (pioc
     PUBLIC ${NetCDF_C_LIBRARIES})
-  if (${NetCDF_C_HAS_PARALLEL})
-    target_compile_definitions (pioc
-      PUBLIC _NETCDF4)
-  endif ()
   if (${NetCDF_C_LOGGING_ENABLED})
-    target_compile_definitions (pioc
-      PUBLIC NETCDF_C_LOGGING_ENABLED)
     # netcdf.h needs this to be defined to use netCDF logging.
     target_compile_definitions (pioc
       PUBLIC LOGGING)
   endif()
-else ()
-  target_compile_definitions (pioc
-    PUBLIC _NONETCDF)
 endif ()
 
 #===== PnetCDF-C =====
 if (PnetCDF_C_FOUND)
   target_include_directories (pioc
     PUBLIC ${PnetCDF_C_INCLUDE_DIRS})
-  target_compile_definitions (pioc
-    PUBLIC _PNETCDF)
   target_link_libraries (pioc
     PUBLIC ${PnetCDF_C_LIBRARIES})
 
@@ -131,9 +118,6 @@ if (PnetCDF_C_FOUND)
       PUBLIC USE_PNETCDF_VARN
       PUBLIC USE_PNETCDF_VARN_ON_READ)
   endif()
-else ()
-  target_compile_definitions (pioc
-    PUBLIC _NOPNETCDF)
 endif ()
 
 #===== Add EXTRAs =====
diff --git a/src/clib/pio_meta.h.in b/src/clib/pio_meta.h.in
index 8cbe2019fd7..a735a890026 100644
--- a/src/clib/pio_meta.h.in
+++ b/src/clib/pio_meta.h.in
@@ -29,5 +29,6 @@
 #define PIO_HAS_NETCDF4     @PIO_HAS_NETCDF4@     /*!< NetCDF-4 supported. */
 #define PIO_HAS_NETCDF4_PAR @PIO_HAS_NETCDF4_PAR@ /*!< NetCDF-4 parallel I/O supported. */
 #define PIO_HAS_NETCDF_INTEGRATION @PIO_HAS_NETCDF_INTEGRATION@ /*!< NetCDF integration supported. */
+#define PIO_HAS_LOGGING     @PIO_HAS_LOGGING@     /*!< PIO logging turned on. */
 
 #endif
diff --git a/src/clib/pioc_support.c b/src/clib/pioc_support.c
index 6e1849075b8..8a681136d86 100644
--- a/src/clib/pioc_support.c
+++ b/src/clib/pioc_support.c
@@ -164,14 +164,6 @@ PIOc_set_log_level(int level)
     /* Set the log level. */
     pio_log_level = level;
 
-#if NETCDF_C_LOGGING_ENABLED
-    int ret;
-
-    /* If netcdf logging is available turn it on starting at level = 4. */
-    if (level > NC_LEVEL_DIFF)
-        if ((ret = nc_set_log_level(level - NC_LEVEL_DIFF)))
-            return pio_err(NULL, NULL, ret, __FILE__, __LINE__);
-#endif /* NETCDF_C_LOGGING_ENABLED */
 #endif /* PIO_ENABLE_LOGGING */
 
     return PIO_NOERR;
diff --git a/src/flib/CMakeLists.txt b/src/flib/CMakeLists.txt
index 8ee65c77ad6..506981ddc98 100644
--- a/src/flib/CMakeLists.txt
+++ b/src/flib/CMakeLists.txt
@@ -216,25 +216,14 @@ endif ()
 if (NetCDF_Fortran_FOUND)
   target_include_directories (piof
     PUBLIC ${NetCDF_Fortran_INCLUDE_DIRS})
-  target_compile_definitions (piof
-    PUBLIC _NETCDF)
   target_link_libraries (piof
     PUBLIC ${NetCDF_Fortran_LIBRARIES})
-  if (EXISTS ${NetCDF_Fortran_INCLUDE_DIR}/netcdf_par.h)
-    target_compile_definitions (piof
-      PUBLIC _NETCDF4)
-  endif ()
-else ()
-  target_compile_definitions (piof
-    PUBLIC _NONETCDF)
 endif ()
 
 #===== PnetCDF =====
 if (PnetCDF_Fortran_FOUND)
   target_include_directories (piof
     PUBLIC ${PnetCDF_Fortran_INCLUDE_DIRS})
-  target_compile_definitions (piof
-    PUBLIC _PNETCDF)
   target_link_libraries (piof
     PUBLIC ${PnetCDF_Fortran_LIBRARIES})
 
@@ -246,9 +235,6 @@ if (PnetCDF_Fortran_FOUND)
       PUBLIC USE_PNETCDF_VARN
       PUBLIC USE_PNETCDF_VARN_ON_READ)
   endif()
-else ()
-  target_compile_definitions (piof
-    PUBLIC _NOPNETCDF)
 endif ()
 
 #===== Add EXTRAs =====