From 1d8d1a9acfa85bb328cd7d67c030749045ce9bd4 Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Thu, 15 Sep 2022 02:14:03 +0200 Subject: [PATCH] Makefile: Make compiler version comparison optional Forwarded: not-needed Bug-Debian: https://bugs.debian.org/1019749 The top-level Makefile warns if the compiler version string changes at all between the kernel build and an out-of-tree module build. We expect that major compiler version changes could introduce ABI changes, and override the CC variable in out-of-tree module builds to ensure that the same major compiler version is used. But minor version changes should not make a difference, so this exact version comparison produces false warnings. Since custom kernel packages don't have that, don't remove the version comparison. Instead, skip it if $(DEBIAN_KERNEL_NO_CC_VERSION_CHECK) is non-empty. Gbp-Pq: Topic debian Gbp-Pq: Name makefile-make-compiler-version-comparison-optional.patch --- Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Makefile b/Makefile index c44ba526f2a..e8a9b75be57 100644 --- a/Makefile +++ b/Makefile @@ -1929,7 +1929,7 @@ PHONY += prepare # now expand this into a simple variable to reduce the cost of shell evaluations prepare: CC_VERSION_TEXT := $(CC_VERSION_TEXT) prepare: - @if [ "$(CC_VERSION_TEXT)" != "$(CONFIG_CC_VERSION_TEXT)" ]; then \ + @if [ -z "$(DEBIAN_KERNEL_NO_CC_VERSION_CHECK)" ] && [ "$(CC_VERSION_TEXT)" != "$(CONFIG_CC_VERSION_TEXT)" ]; then \ echo >&2 "warning: the compiler differs from the one used to build the kernel"; \ echo >&2 " The kernel was built by: $(CONFIG_CC_VERSION_TEXT)"; \ echo >&2 " You are using: $(CC_VERSION_TEXT)"; \ -- 2.30.2