Include all post-quantum algorithm files in cmake

GH-5407 already included falcon.c, but now we also add sphincs.c,
dilithium.c and ext_kyber.c to avoid undefined reference errors.

cmake/functions.cmake

@@ -195,6 +195,9 @@ function(generate_build_flags)
     endif()
     if(WOLFSSL_OQS OR WOLFSSL_USER_SETTINGS)
         set(BUILD_FALCON "yes" PARENT_SCOPE)
+        set(BUILD_SPHINCS "yes" PARENT_SCOPE)
+        set(BUILD_DILITHIUM "yes" PARENT_SCOPE)
+        set(BUILD_EXT_KYBER "yes" PARENT_SCOPE)
     endif()
     set(BUILD_INLINE ${WOLFSSL_INLINE} PARENT_SCOPE)
     if(WOLFSSL_OCSP OR WOLFSSL_USER_SETTINGS)
@@ -804,6 +807,18 @@ function(generate_lib_src_list LIB_SOURCES)
               list(APPEND LIB_SOURCES wolfcrypt/src/falcon.c)
          endif()
 
+         if(BUILD_SPHINCS)
+              list(APPEND LIB_SOURCES wolfcrypt/src/sphincs.c)
+         endif()
+
+         if(BUILD_DILITHIUM)
+              list(APPEND LIB_SOURCES wolfcrypt/src/dilithium.c)
+         endif()
+
+         if(BUILD_EXT_KYBER)
+              list(APPEND LIB_SOURCES wolfcrypt/src/ext_kyber.c)
+         endif()
+
          if(BUILD_LIBZ)
               list(APPEND LIB_SOURCES wolfcrypt/src/compress.c)
          endif()