From e5a35b493d5701ff4f6d9b1b7afdaed76c32ab63 Mon Sep 17 00:00:00 2001
From: Viktor Szakats <commit@vsz.me>
Date: Thu, 13 Jun 2024 13:43:59 +0200
Subject: [PATCH] cmake: enable SOVERSION for Cygwin and
 `CMAKE_DLL_NAME_WITH_SOVERSION`

- enable SOVERSION when `CMAKE_DLL_NAME_WITH_SOVERSION=ON` is set.
  Ref: https://cmake.org/cmake/help/v3.27/variable/CMAKE_DLL_NAME_WITH_SOVERSION.html
  Use: https://github.com/search?q=-DCMAKE_DLL_NAME_WITH_SOVERSION&type=code

- enable SOVERSION for Cygwin builds by default.

Ref: #13936
Ref: #13944
Closes #13898
---
 lib/CMakeLists.txt | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/CMakeLists.txt b/lib/CMakeLists.txt
index aedcfc6fdf..63e5b91390 100644
--- a/lib/CMakeLists.txt
+++ b/lib/CMakeLists.txt
@@ -191,7 +191,9 @@ if(BUILD_SHARED_LIBS)
     $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
     $<BUILD_INTERFACE:${CURL_SOURCE_DIR}/include>)
 
-  if(APPLE OR
+  if(CMAKE_DLL_NAME_WITH_SOVERSION OR
+    CYGWIN OR
+    APPLE OR
     CMAKE_SYSTEM_NAME STREQUAL "AIX" OR
     CMAKE_SYSTEM_NAME STREQUAL "Linux" OR
     CMAKE_SYSTEM_NAME STREQUAL "SunOS" OR
-- 
2.47.3