From: Matthew Fernandez <matthew.fernandez@gmail.com>
Date: Sat, 5 Nov 2022 19:56:09 +0000 (-0700)
Subject: CMake: only use 'LTDL_LIBRARY' on non-Windows or MinGW
X-Git-Tag: 7.0.1~1^2~6
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=7d7c509b2855e574e034d11b5a4bbeafee4e9338;p=graphviz

CMake: only use 'LTDL_LIBRARY' on non-Windows or MinGW

When running CMake with `--warn-uninitialized -Werror=dev`, this prevents the
following:

  CMake Error (dev) at cmake/FindLTDL.cmake:18 (set):
    uninitialized variable 'LTDL_LIBRARY'
  Call Stack (most recent call first):
    CMakeLists.txt:117 (find_package)

Gitlab: #2291
---

diff --git a/cmake/FindLTDL.cmake b/cmake/FindLTDL.cmake
index a1ee8c2a2..e955b745e 100644
--- a/cmake/FindLTDL.cmake
+++ b/cmake/FindLTDL.cmake
@@ -15,4 +15,6 @@ endif()
 mark_as_advanced(LTDL_INCLUDE_DIR LTDL_LIBRARY)
 
 set(LTDL_INCLUDE_DIRS ${LTDL_INCLUDE_DIR})
-set(LTDL_LIBRARIES ${LTDL_LIBRARY})
+if(NOT WIN32 OR MINGW)
+  set(LTDL_LIBRARIES ${LTDL_LIBRARY})
+endif()