From 294e908a2cb53ab4ea34e202a31fc941a4825e16 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@nbd.name>
Date: Mon, 20 Feb 2017 12:13:51 +0100
Subject: [PATCH] cmake: skip build system check on compile

cmake checks the build system and its variables on its own to detect if
the makefiles need to be regenerated.
Unfortunately this can invalidate overrides passed in the
Build/Configure step. On non-Linux systems this breaks the build when
switching between targets of the same package architecture.

Fix this by forcibly disabling the build system check and relying on the
LEDE build system to take care of these things

Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
 include/cmake.mk | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/include/cmake.mk b/include/cmake.mk
index 80c1b05937..900dae1d4a 100644
--- a/include/cmake.mk
+++ b/include/cmake.mk
@@ -107,3 +107,7 @@ define Host/Configure/Default
 		$(HOST_CMAKE_SOURCE_DIR) \
 	)
 endef
+
+MAKE_FLAGS += \
+	CMAKE_COMMAND='$$(if $$(CMAKE_DISABLE_$$@),:,$(STAGING_DIR_HOST)/bin/cmake)' \
+	CMAKE_DISABLE_cmake_check_build_system=1
-- 
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