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-rw-r--r--docs/reference.rst3
1 files changed, 3 insertions, 0 deletions
diff --git a/docs/reference.rst b/docs/reference.rst
index ccbf0a4d..8018bdb9 100644
--- a/docs/reference.rst
+++ b/docs/reference.rst
@@ -24,6 +24,9 @@ __BIG_ENDIAN__ Set this if your platform stores integers and
floats in big-endian format. Mixed-endian
systems (different layout for ints and floats)
are currently not supported.
+PB_NO_PACKED_STRUCTS Disable packed structs. Increases RAM usage but
+ is necessary on some platforms that do not
+ support unaligned memory access.
PB_ENABLE_MALLOC Set this to enable dynamic allocation support
in the decoder.
PB_MAX_REQUIRED_FIELDS Maximum number of required fields to check for