From ba275d8bdb1eacd357b942b0aa7df5612f751fc5 Mon Sep 17 00:00:00 2001
From: Thomas Heijligen <thomas.heijligen@secunet.de>
Date: Tue, 28 Sep 2021 15:22:34 +0200
Subject: Makefile: move determination test for OS to Makefile.d

Move the test code for OS detection in a extra directory to split it
from the main flashrom code.

Change-Id: Id911f17f4100f242e1fde10d23a8459ddf38b369
Signed-off-by: Thomas Heijligen <thomas.heijligen@secunet.de>
Reviewed-on: https://review.coreboot.org/c/flashrom/+/58015
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
---
 Makefile.include | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'Makefile.include')

diff --git a/Makefile.include b/Makefile.include
index 36746c805..ca70d0514 100644
--- a/Makefile.include
+++ b/Makefile.include
@@ -31,6 +31,10 @@ $(foreach p,$1, \
 	$(eval override $(p) := no))
 endef
 
+# Run the C Preprocessor with file $1 and return the last line, removing quotes.
+define c_macro_test
+$(strip $(shell $(CC) -E $1 2>/dev/null | tail -1 | tr -d '"'))
+endef
 
 define COMPILER_TEST
 int main(int argc, char **argv)
-- 
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