From: Deniz Bahadir <deniz@code.bahadir.email>
Date: Fri, 15 Sep 2023 13:46:56 +0000 (+0200)
Subject: Fix examining value of GENERATOR_IS_MULTI_CONFIG
X-Git-Tag: 2.1.4~14
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=401aeb8b867d27ebbcdb44c49a727935ab707103;p=thirdparty%2Fzlib-ng.git

Fix examining value of GENERATOR_IS_MULTI_CONFIG

CMake does not define a variable GENERATOR_IS_MULTI_CONFIG by default.
Instead it sets a global property of that name.
In order to examine its value it first has to be retrieved and stored
into a (local) variable, which is what this commit does.

fixes: #1574

Signed-off-by: Deniz Bahadir <deniz@code.bahadir.email>
---

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6cccb4659..bf0423b95 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -57,6 +57,7 @@ endif()
 
 # Make sure we use an appropriate BUILD_TYPE by default, "Release" to be exact
 # this should select the maximum generic optimisation on the current platform (i.e. -O3 for gcc/clang)
+get_property(GENERATOR_IS_MULTI_CONFIG GLOBAL PROPERTY GENERATOR_IS_MULTI_CONFIG)
 if(NOT GENERATOR_IS_MULTI_CONFIG)
     if(NOT CMAKE_BUILD_TYPE)
         set(CMAKE_BUILD_TYPE "Release" CACHE STRING