diff --git a/ChangeLog.d/fix-iar-warnings.txt b/ChangeLog.d/fix-iar-warnings.txt
new file mode 100644
index 0000000..244e863
--- /dev/null
+++ b/ChangeLog.d/fix-iar-warnings.txt
@@ -0,0 +1,2 @@
+Bugfix
+   * Fix IAR compiler warnings. Contributed by Glenn Strauss in #3835.
diff --git a/ChangeLog.d/fix_build_for_directory_names_containing_spaces.txt b/ChangeLog.d/fix_build_for_directory_names_containing_spaces.txt
new file mode 100644
index 0000000..e7643b7
--- /dev/null
+++ b/ChangeLog.d/fix_build_for_directory_names_containing_spaces.txt
@@ -0,0 +1,4 @@
+Bugfix
+   * Fix a bug in the build where directory names containing spaces were
+     causing generate_errors.pl to error out resulting in a build failure.
+     Fixes issue #6879.
diff --git a/include/psa/crypto_values.h b/include/psa/crypto_values.h
index 4df4fe4..a9fddb7 100644
--- a/include/psa/crypto_values.h
+++ b/include/psa/crypto_values.h
@@ -57,6 +57,13 @@
  * value, check with the Arm PSA framework group to pick one that other
  * domains aren't already using. */
 
+/* Tell uncrustify not to touch the constant definitions, otherwise
+ * it might change the spacing to something that is not PSA-compliant
+ * (e.g. adding a space after casts).
+ *
+ * *INDENT-OFF*
+ */
+
 /** The action was completed successfully. */
 #define PSA_SUCCESS ((psa_status_t)0)
 
@@ -327,6 +334,8 @@
  */
 #define PSA_ERROR_DATA_INVALID          ((psa_status_t)-153)
 
+/* *INDENT-ON* */
+
 /**@}*/
 
 /** \defgroup crypto_types Key and algorithm types
@@ -819,7 +828,9 @@
     (((alg) & PSA_ALG_CATEGORY_MASK) == PSA_ALG_CATEGORY_KEY_DERIVATION)
 
 /** An invalid algorithm identifier value. */
+/* *INDENT-OFF* (https://github.com/ARM-software/psa-arch-tests/issues/337) */
 #define PSA_ALG_NONE                            ((psa_algorithm_t)0)
+/* *INDENT-ON* */
 
 #define PSA_ALG_HASH_MASK                       ((psa_algorithm_t)0x000000ff)
 /** MD2 */
@@ -2085,7 +2096,9 @@
 
 /** The null key identifier.
  */
+/* *INDENT-OFF* (https://github.com/ARM-software/psa-arch-tests/issues/337) */
 #define PSA_KEY_ID_NULL                         ((psa_key_id_t)0)
+/* *INDENT-ON* */
 /** The minimum value for a key identifier chosen by the application.
  */
 #define PSA_KEY_ID_USER_MIN                     ((psa_key_id_t)0x00000001)
diff --git a/library/bignum.c b/library/bignum.c
index 37193f5..32038f8 100644
--- a/library/bignum.c
+++ b/library/bignum.c
@@ -1559,9 +1559,9 @@
      */
     if( 0 == d || u1 >= d )
     {
-        if (r != NULL) *r = ~0;
+        if (r != NULL) *r = ~(mbedtls_mpi_uint)0u;
 
-        return ( ~0 );
+        return ( ~(mbedtls_mpi_uint)0u );
     }
 
 #if defined(MBEDTLS_HAVE_UDBL)
@@ -1700,7 +1700,7 @@
     for( i = n; i > t ; i-- )
     {
         if( X.p[i] >= Y.p[t] )
-            Z.p[i - t - 1] = ~0;
+            Z.p[i - t - 1] = ~(mbedtls_mpi_uint)0u;
         else
         {
             Z.p[i - t - 1] = mbedtls_int_div_int( X.p[i], X.p[i - 1],
diff --git a/scripts/generate_errors.pl b/scripts/generate_errors.pl
index 65383fa..e950bc5 100755
--- a/scripts/generate_errors.pl
+++ b/scripts/generate_errors.pl
@@ -60,11 +60,11 @@
 my $error_format = <FORMAT_FILE>;
 close(FORMAT_FILE);
 
-my @files = <$include_dir/*.h>;
+my @files = glob qq("$include_dir/*.h");
 my @necessary_include_files;
 my @matches;
 foreach my $file (@files) {
-    open(FILE, "$file");
+    open(FILE, '<:crlf', $file) or die("$0: $file: $!");
     my $content = <FILE>;
     close FILE;
     my $found = 0;