From 2b8df44212782c7f9046c6654ec19660c804716c Mon Sep 17 00:00:00 2001
From: Jan-Joost Spanjers <oss@hiberis.nl>
Date: Sun, 18 Oct 2026 13:45:33 +0200
Subject: [PATCH] Add CMAKE_INSTALL_CMAKEDIR variable for installing .cmake
 files

---
 src/lib/CMakeLists.txt | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/src/lib/CMakeLists.txt b/src/lib/CMakeLists.txt
index 5912e91..90cfba8 100644
--- a/src/lib/CMakeLists.txt
+++ b/src/lib/CMakeLists.txt
@@ -2,6 +2,16 @@
 include(CMakePackageConfigHelpers)
 include(GNUInstallDirs)
 
+if(NOT DEFINED CMAKE_INSTALL_CMAKEDIR)
+    if(WIN32)
+        # Windows Layout
+        set(CMAKE_INSTALL_CMAKEDIR "cmake" CACHE STRING "")
+    else()
+        # Linux / Standard Unix Layout
+        set(CMAKE_INSTALL_CMAKEDIR "${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}" CACHE STRING "")
+    endif()
+endif()
+
 if (${INFLATELIB_BUILD_SHARED})
     add_library(inflatelib SHARED)
 
@@ -76,7 +86,7 @@ install(
     EXPORT inflatelib_export
     FILE inflatelib-config.cmake
     NAMESPACE inflatelib::
-    DESTINATION cmake
+    DESTINATION "${CMAKE_INSTALL_CMAKEDIR}"
     )
 
 write_basic_package_version_file(
@@ -85,5 +95,5 @@ write_basic_package_version_file(
     )
 install(FILES
     "${CMAKE_CURRENT_BINARY_DIR}/inflatelib-config-version.cmake"
-    DESTINATION cmake
+    DESTINATION "${CMAKE_INSTALL_CMAKEDIR}"
     )