From 96e21c2e2573831674bed2c4cb855b294d768a41 Mon Sep 17 00:00:00 2001
From: Viktor Szakats <commit@vsz.me>
Date: Mon, 1 Dec 2025 15:03:16 +0100
Subject: [PATCH] cmake: verify minimum CMake version in `libssh2-config.cmake`

This is the same minimum version required to build libssh2 itself (3.7).

Closes #1754
---
 cmake/libssh2-config.cmake.in | 5 +++++
 src/CMakeLists.txt            | 1 +
 2 files changed, 6 insertions(+)

diff --git a/cmake/libssh2-config.cmake.in b/cmake/libssh2-config.cmake.in
index 39266ccb..0facf0b5 100644
--- a/cmake/libssh2-config.cmake.in
+++ b/cmake/libssh2-config.cmake.in
@@ -4,6 +4,11 @@
 option(LIBSSH2_USE_PKGCONFIG "Enable pkg-config to detect @PROJECT_NAME@ dependencies. Default: @LIBSSH2_USE_PKGCONFIG@"
   "@LIBSSH2_USE_PKGCONFIG@")
 
+if(CMAKE_VERSION VERSION_LESS @CMAKE_MINIMUM_REQUIRED_VERSION@)
+  message(STATUS "@PROJECT_NAME@: @PROJECT_NAME@-specific Find modules require "
+    "CMake @CMAKE_MINIMUM_REQUIRED_VERSION@ or upper, found: ${CMAKE_VERSION}.")
+endif()
+
 include(CMakeFindDependencyMacro)
 
 set(_libssh2_cmake_module_path_save ${CMAKE_MODULE_PATH})
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 0259bf9b..dd989a2f 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -397,6 +397,7 @@ if(NOT LIBSSH2_DISABLE_INSTALL)
     DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig")
 
   # Consumed variables:
+  #   CMAKE_MINIMUM_REQUIRED_VERSION
   #   CRYPTO_BACKEND
   #   LIB_NAME
   #   LIB_SELECTED