KasmVNC/contrib/fltk/fixes/0003-We-need-to-unset-CMAKE_REQUIRED_LIBRARIES-after-chec.patch

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2020-09-20 14:16:44 +02:00
>From bb02d8426a9a279df76376313349c17774030753 Mon Sep 17 00:00:00 2001
From: DRC <information@virtualgl.org>
Date: Tue, 26 Feb 2013 04:01:36 -0600
Subject: [PATCH 3/4] We need to unset CMAKE_REQUIRED_LIBRARIES after checking
for the libpng functions. Otherwise, under certain circumstances (known to
be an issue when building on OS X with the in-tree libpng implementation),
the scandir() function check will fail, leaving HAVE_SCANDIR unset, and the
build will subsequently fail.
---
CMakeLists.txt | 3 +++
1 file changed, 3 insertions(+)
diff --git a/CMakeLists.txt b/CMakeLists.txt
index cae895e..0984aae 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -210,6 +210,9 @@ if(LIB_png)
endif(LIB_png)
CHECK_FUNCTION_EXISTS(png_get_valid HAVE_PNG_GET_VALID)
CHECK_FUNCTION_EXISTS(png_set_tRNS_to_alpha HAVE_PNG_SET_TRNS_TO_ALPHA)
+if(LIB_png)
+ set(CMAKE_REQUIRED_LIBRARIES "")
+endif(LIB_png)
CHECK_FUNCTION_EXISTS(scandir HAVE_SCANDIR)
CHECK_FUNCTION_EXISTS(snprintf HAVE_SNPRINTF)
--
1.8.1.3