diff --git a/programs/pkey/gen_key.c b/programs/pkey/gen_key.c
index fca35e55a..275e541c2 100644
--- a/programs/pkey/gen_key.c
+++ b/programs/pkey/gen_key.c
@@ -33,8 +33,9 @@
 #define polarssl_printf     printf
 #endif
 
-#if defined(POLARSSL_PK_WRITE_C) && defined(POLARSSL_FS_IO) && \
-    defined(POLARSSL_ENTROPY_C) && defined(POLARSSL_CTR_DRBG_C)
+#if defined(POLARSSL_PK_WRITE_C) && defined(POLARSSL_PEM_WRITE_C) && \
+    defined(POLARSSL_FS_IO) && defined(POLARSSL_ENTROPY_C) && \
+    defined(POLARSSL_CTR_DRBG_C)
 #include "polarssl/error.h"
 #include "polarssl/pk.h"
 #include "polarssl/ecdsa.h"
@@ -121,12 +122,14 @@ int dev_random_entropy_poll( void *data, unsigned char *output,
     USAGE_DEV_RANDOM                                    \
     "\n"
 
-#if !defined(POLARSSL_PK_WRITE_C) || !defined(POLARSSL_FS_IO) ||    \
-    !defined(POLARSSL_ENTROPY_C) || !defined(POLARSSL_CTR_DRBG_C)
+#if !defined(POLARSSL_PK_WRITE_C) || !defined(POLARSSL_PEM_WRITE_C) || \
+    !defined(POLARSSL_FS_IO) || !defined(POLARSSL_ENTROPY_C) || \
+    !defined(POLARSSL_CTR_DRBG_C)
 int main( void )
 {
     polarssl_printf( "POLARSSL_PK_WRITE_C and/or POLARSSL_FS_IO and/or "
-            "POLARSSL_ENTROPY_C and/or POLARSSL_CTR_DRBG_C "
+            "POLARSSL_ENTROPY_C and/or POLARSSL_CTR_DRBG_C and/or "
+            "POLARSSL_PEM_WRITE_C "
             "not defined.\n" );
     return( 0 );
 }
@@ -417,4 +420,5 @@ exit:
 
     return( ret );
 }
-#endif /* POLARSSL_PK_WRITE_C && POLARSSL_FS_IO */
+#endif /* POLARSSL_PK_WRITE_C && POLARSSL_PEM_WRITE_C && POLARSSL_FS_IO &&
+        * POLARSSL_ENTROPY_C && POLARSSL_CTR_DRBG_C */
diff --git a/programs/x509/cert_req.c b/programs/x509/cert_req.c
index 01b8107a1..0e8862f37 100644
--- a/programs/x509/cert_req.c
+++ b/programs/x509/cert_req.c
@@ -35,13 +35,15 @@
 
 #if !defined(POLARSSL_X509_CSR_WRITE_C) || !defined(POLARSSL_FS_IO) ||  \
     !defined(POLARSSL_PK_PARSE_C) || !defined(POLARSSL_SHA256_C) || \
-    !defined(POLARSSL_ENTROPY_C) || !defined(POLARSSL_CTR_DRBG_C)
+    !defined(POLARSSL_ENTROPY_C) || !defined(POLARSSL_CTR_DRBG_C) || \
+    !defined(POLARSSL_PEM_WRITE_C)
 int main( void )
 {
     polarssl_printf( "POLARSSL_X509_CSR_WRITE_C and/or POLARSSL_FS_IO and/or "
-            "POLARSSL_PK_PARSE_C and/or POLARSSL_SHA256_c and/or "
-            "POLARSSL_ENTROPY_C and/or POLARSSL_CTR_DRBG_C "
-            "not defined.\n");
+                     "POLARSSL_PK_PARSE_C and/or POLARSSL_SHA256_c and/or "
+                     "POLARSSL_ENTROPY_C and/or POLARSSL_CTR_DRBG_C and/or "
+                     "POLARSSL_PEM_WRITE_C "
+                     "not defined.\n");
     return( 0 );
 }
 #else
@@ -341,4 +343,4 @@ exit:
     return( ret );
 }
 #endif /* POLARSSL_X509_CSR_WRITE_C && POLARSSL_PK_PARSE_C && POLARSSL_FS_IO &&
-          POLARSSL_ENTROPY_C && POLARSSL_CTR_DRBG_C */
+          POLARSSL_ENTROPY_C && POLARSSL_CTR_DRBG_C && POLARSSL_PEM_WRITE_C */
diff --git a/programs/x509/cert_write.c b/programs/x509/cert_write.c
index 57cb6c7c0..290eebcf2 100644
--- a/programs/x509/cert_write.c
+++ b/programs/x509/cert_write.c
@@ -36,13 +36,16 @@
 #if !defined(POLARSSL_X509_CRT_WRITE_C) ||                                  \
     !defined(POLARSSL_X509_CRT_PARSE_C) || !defined(POLARSSL_FS_IO) ||      \
     !defined(POLARSSL_ENTROPY_C) || !defined(POLARSSL_CTR_DRBG_C) ||        \
-    !defined(POLARSSL_ERROR_C) || !defined(POLARSSL_SHA256_C)
+    !defined(POLARSSL_ERROR_C) || !defined(POLARSSL_SHA256_C) || \
+    !defined(POLARSSL_PEM_WRITE_C)
 int main( void )
 {
-    polarssl_printf( "POLARSSL_X509_CRT_WRITE_C and/or POLARSSL_X509_CRT_PARSE_C and/or "
-            "POLARSSL_FS_IO and/or POLARSSL_SHA256_C and_or "
-            "POLARSSL_ENTROPY_C and/or POLARSSL_CTR_DRBG_C and/or "
-            "POLARSSL_ERROR_C not defined.\n");
+    polarssl_printf( "POLARSSL_X509_CRT_WRITE_C and/or "
+                     "POLARSSL_X509_CRT_PARSE_C and/or "
+                     "POLARSSL_FS_IO and/or POLARSSL_SHA256_C and_or "
+                     "POLARSSL_ENTROPY_C and/or POLARSSL_CTR_DRBG_C and/or "
+                     "POLARSSL_PEM_WRITE_C and/or "
+                     "POLARSSL_ERROR_C not defined.\n");
     return( 0 );
 }
 #else
@@ -665,4 +668,4 @@ exit:
 }
 #endif /* POLARSSL_X509_CRT_WRITE_C && POLARSSL_X509_CRT_PARSE_C &&
           POLARSSL_FS_IO && POLARSSL_ENTROPY_C && POLARSSL_CTR_DRBG_C &&
-          POLARSSL_ERROR_C */
+          POLARSSL_ERROR_C && MBEDTLS_PEM_WRITE_C */