Start with tests for the C API

The C API tests can be run individually via

    build/api_test/api_test

Or together with the spec tests via

    cmake --build build --target test

1 files changed, 1 insertions, 1 deletions

diff --git a/src/node.h b/src/node.h
index 533406b..2d7f0a1 100644
--- a/src/node.h
+++ b/src/node.h
@@ -61,7 +61,7 @@ struct cmark_node {
 	} as;
 };
 
-int
+CMARK_EXPORT int
 cmark_node_check(cmark_node *node);
 
 #ifdef __cplusplus