diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 7dc58f0b..fdd5647b 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -33,7 +33,7 @@ jobs:
       matrix:
         os: [ubuntu-22.04, ubuntu-latest]
         build_system: ["autotools", "cmake"]
-        python-version: ["3.10", "3.11", "3.12"]
+        python-version: ["3.10"]
         hdf5-branch: ["hdf5_1_14", "develop"]
         compiler: ["gcc-11", "gcc-12", "gcc-13"]
         exclude:
diff --git a/build_vol_cmake.sh b/build_vol_cmake.sh
index 58e3cae1..13a519f1 100755
--- a/build_vol_cmake.sh
+++ b/build_vol_cmake.sh
@@ -189,7 +189,7 @@ rm -f "${BUILD_DIR}/CMakeCache.txt"
 
 cd "${BUILD_DIR}"
 
-CFLAGS="-D_POSIX_C_SOURCE=200809L -g -O0" cmake -G "-DCMAKE_C_COMPILER=gcc-12" "${CMAKE_GENERATOR}" "-DHDF5_ROOT=${HDF5_INSTALL_DIR}" -DCMAKE_INSTALL_PREFIX="${INSTALL_DIR}" "${CURL_OPT}" "${YAJL_OPT}" "${YAJL_LIB_OPT}" "${CONNECTOR_DEBUG_OPT}" "${CURL_DEBUG_OPT}" "${MEM_TRACK_OPT}" "${THREAD_SAFE_OPT}" "${SCRIPT_DIR}"
+CFLAGS="-D_POSIX_C_SOURCE=200809L" cmake -G "${CMAKE_GENERATOR}" "-DHDF5_ROOT=${HDF5_INSTALL_DIR}" -DCMAKE_INSTALL_PREFIX="${INSTALL_DIR}" "${CURL_OPT}" "${YAJL_OPT}" "${YAJL_LIB_OPT}" "${CONNECTOR_DEBUG_OPT}" "${CURL_DEBUG_OPT}" "${MEM_TRACK_OPT}" "${THREAD_SAFE_OPT}" "${SCRIPT_DIR}"
 
 echo "Build files have been generated for CMake generator '${CMAKE_GENERATOR}'"
 
diff --git a/src/rest_vol.c b/src/rest_vol.c
index 545d2136..a6377254 100644
--- a/src/rest_vol.c
+++ b/src/rest_vol.c
@@ -3164,10 +3164,9 @@ RV_convert_dataspace_shape_to_JSON(hid_t space_id, char **shape_body, char **max
                         strcat(maxdims_out_string_curr_pos++, "0");
                     } /* end if */
                     else {
-                        if ((bytes_printed =
-                                 snprintf(maxdims_out_string_curr_pos,
-                                          maxdims_out_string_new_len - (size_t)maxdims_out_string_curr_pos,
-                                          "%s%" PRIuHSIZE, i > 0 ? "," : "", maxdims[i])) < 0)
+                        if ((bytes_printed = snprintf(maxdims_out_string_curr_pos,
+                                                      maxdims_out_string_new_len - (size_t)buf_ptrdiff,
+                                                      "%s%" PRIuHSIZE, i > 0 ? "," : "", maxdims[i])) < 0)
                             FUNC_GOTO_ERROR(H5E_DATASPACE, H5E_SYSERRSTR, FAIL, "snprintf error");
                         maxdims_out_string_curr_pos += bytes_printed;
                     } /* end else */
diff --git a/src/rest_vol_config.h.in b/src/rest_vol_config.h.in
index c49f1de1..5e0997d4 100644
--- a/src/rest_vol_config.h.in
+++ b/src/rest_vol_config.h.in
@@ -30,6 +30,9 @@
 /* Define to 1 if you have the <mach/mach_time.h> header file. */
 #undef HAVE_MACH_MACH_TIME_H
 
+/* Define to 1 if you have the <memory.h> header file. */
+#undef HAVE_MEMORY_H
+
 /* Define to 1 if you have the <setjmp.h> header file. */
 #undef HAVE_SETJMP_H
 
@@ -45,9 +48,6 @@
 /* Define to 1 if you have the <stdint.h> header file. */
 #undef HAVE_STDINT_H
 
-/* Define to 1 if you have the <stdio.h> header file. */
-#undef HAVE_STDIO_H
-
 /* Define to 1 if you have the <stdlib.h> header file. */
 #undef HAVE_STDLIB_H
 
@@ -81,9 +81,6 @@
 /* Define to 1 if you have the <unistd.h> header file. */
 #undef HAVE_UNISTD_H
 
-/* Whether HDF5 version is at least 2.0.0 */
-#undef HDF5_2
-
 /* Define to the sub-directory where libtool stores uninstalled libraries. */
 #undef LT_OBJDIR
 
@@ -114,13 +111,10 @@
 /* The size of `off_t', as computed by sizeof. */
 #undef SIZEOF_OFF_T
 
-/* Define to 1 if all of the C90 standard headers exist (not just the ones
-   required in a freestanding environment). This macro is provided for
-   backward compatibility; new code need not use it. */
+/* Define to 1 if you have the ANSI C header files. */
 #undef STDC_HEADERS
 
-/* Define to 1 if you can safely include both <sys/time.h> and <time.h>. This
-   macro is obsolete. */
+/* Define to 1 if you can safely include both <sys/time.h> and <time.h>. */
 #undef TIME_WITH_SYS_TIME
 
 /* Define to have the REST VOL track memory usage. */