From 91a799247dc5e4627e6b2f221669c8ff9238bc8d Mon Sep 17 00:00:00 2001
From: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com>
Date: Wed, 15 May 2024 11:01:31 +0100
Subject: [PATCH] depends: Add host-specific `cmake_system_version` variables

---
 depends/hosts/darwin.mk  | 3 +++
 depends/hosts/linux.mk   | 3 +++
 depends/hosts/mingw32.mk | 2 ++
 3 files changed, 8 insertions(+)

diff --git a/depends/hosts/darwin.mk b/depends/hosts/darwin.mk
index 61042397351..a27d8b323b6 100644
--- a/depends/hosts/darwin.mk
+++ b/depends/hosts/darwin.mk
@@ -76,3 +76,6 @@ darwin_debug_CFLAGS=-O1 -g
 darwin_debug_CXXFLAGS=$(darwin_debug_CFLAGS)
 
 darwin_cmake_system_name=Darwin
+# Darwin version, which corresponds to OSX_MIN_VERSION.
+# See https://en.wikipedia.org/wiki/Darwin_(operating_system)
+darwin_cmake_system_version=20.1
diff --git a/depends/hosts/linux.mk b/depends/hosts/linux.mk
index df01b6b2c04..e2f34265d15 100644
--- a/depends/hosts/linux.mk
+++ b/depends/hosts/linux.mk
@@ -39,4 +39,7 @@ i686_linux_CXX=$(default_host_CXX) -m32
 x86_64_linux_CC=$(default_host_CC) -m64
 x86_64_linux_CXX=$(default_host_CXX) -m64
 endif
+
 linux_cmake_system_name=Linux
+# Refer to doc/dependencies.md for the minimum required kernel.
+linux_cmake_system_version=3.17.0
diff --git a/depends/hosts/mingw32.mk b/depends/hosts/mingw32.mk
index 6e868322d5e..c09f7b1e3a8 100644
--- a/depends/hosts/mingw32.mk
+++ b/depends/hosts/mingw32.mk
@@ -20,3 +20,5 @@ mingw32_debug_CXXFLAGS=$(mingw32_debug_CFLAGS)
 mingw32_debug_CPPFLAGS=-D_GLIBCXX_DEBUG -D_GLIBCXX_DEBUG_PEDANTIC
 
 mingw32_cmake_system_name=Windows
+# Windows 7 (NT 6.1).
+mingw32_cmake_system_version=6.1