From 6f6cab9989a4d3f4a28e3cdbfacc4e3e1e55c843 Mon Sep 17 00:00:00 2001
From: Cory Fields <cory-nospam-@coryfields.com>
Date: Wed, 4 May 2022 20:02:52 +0000
Subject: [PATCH] abi: Don't export symbols in static Windows libraries

libtool takes care of building both object versions, we just need to pick the
right one to export symbols.
---
 include/secp256k1.h | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/include/secp256k1.h b/include/secp256k1.h
index 86ab7e556d..dddab346ae 100644
--- a/include/secp256k1.h
+++ b/include/secp256k1.h
@@ -141,9 +141,13 @@ typedef int (*secp256k1_nonce_function)(
 # define SECP256K1_NO_BUILD
 #endif
 
+/** At secp256k1 build-time DLL_EXPORT is defined when building objects destined
+ *  for a shared library, but not for those intended for static libraries.
+ */
+
 #ifndef SECP256K1_API
 # if defined(_WIN32)
-#  ifdef SECP256K1_BUILD
+#  if defined(SECP256K1_BUILD) && defined(DLL_EXPORT)
 #   define SECP256K1_API __declspec(dllexport)
 #  else
 #   define SECP256K1_API