From: Victor Westerhuis <victor@westerhu.is>
Date: Thu, 18 Mar 2021 11:21:56 +0000 (+0100)
Subject: Fix GNUInstallDirs includedir detection
X-Git-Tag: 2.0.2~9
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2ea19800c9dc4b7760b3864a535e2cd05bf39954;p=thirdparty%2Fzlib-ng.git

Fix GNUInstallDirs includedir detection

CMake uses `INCLUDEDIR` instead of `INCDIR`.
---

diff --git a/cmake/detect-install-dirs.cmake b/cmake/detect-install-dirs.cmake
index 421495479..ddf1adb8c 100644
--- a/cmake/detect-install-dirs.cmake
+++ b/cmake/detect-install-dirs.cmake
@@ -33,9 +33,9 @@ if (DEFINED INC_INSTALL_DIR)
     set(INC_INSTALL_DIR "${INC_INSTALL_DIR}" CACHE PATH "Installation directory for headers" FORCE)
 elseif (DEFINED INSTALL_INC_DIR)
     set(INC_INSTALL_DIR "${INSTALL_INC_DIR}" CACHE PATH "Installation directory for headers" FORCE)
-elseif (DEFINED CMAKE_INSTALL_FULL_INCDIR)
+elseif (DEFINED CMAKE_INSTALL_FULL_INCLUDEDIR)
     set(INC_INSTALL_DIR "${CMAKE_INSTALL_FULL_INCLUDEDIR}" CACHE PATH "Installation directory for headers" FORCE)
-elseif (DEFINED CMAKE_INSTALL_INCDIR)
+elseif (DEFINED CMAKE_INSTALL_INCLUDEDIR)
     set(INC_INSTALL_DIR "${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_INCLUDEDIR}" CACHE PATH "Installation directory for headers" FORCE)
 else()
     set(INC_INSTALL_DIR "${CMAKE_INSTALL_PREFIX}/include" CACHE PATH "Installation directory for headers")