From 52e3da46e47cd36305b180bc489f89581a76ffed Mon Sep 17 00:00:00 2001 From: Thomas Petazzoni Date: Sun, 4 Mar 2018 22:31:17 +0100 Subject: [PATCH] linux: fix passing of host CFLAGS and LDFLAGS We were passing HOSTCFLAGS="$(HOSTCFLAGS)" to Linux. However: - HOSTCFLAGS in Buildroot doesn't exist, and is empty, so this assignment never did anything. The name of the variable in Buildroot in HOST_CFLAGS. - HOSTCFLAGS in Linux isn't used everywhere, and passing it overrides the default HOSTCFLAGS value defined in the main Linux kernel Makefile. In addition, there is no way to pass additional host LDFLAGS in the Linux kernel build system. Therefore, we simply shoehorn our HOST_CFLAGS and HOST_LDFLAGS while passing HOSTCC to the Linux kernel build system. This has been tested to work fine with host OpenSSL and host libelf only available in $(HOST_DIR). Signed-off-by: Thomas Petazzoni Tested-by: Frank Hunleth Signed-off-by: Peter Korsgaard (cherry picked from commit dde090c299b0357fdb1a4ec44ad8d332ac57f65e) Signed-off-by: Peter Korsgaard --- linux/linux.mk | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/linux/linux.mk b/linux/linux.mk index f24255747f..2be2403570 100644 --- a/linux/linux.mk +++ b/linux/linux.mk @@ -95,8 +95,7 @@ LINUX_EXTRA_DOWNLOADS += $(ARCH_XTENSA_OVERLAY_URL) endif LINUX_MAKE_FLAGS = \ - HOSTCC="$(HOSTCC)" \ - HOSTCFLAGS="$(HOSTCFLAGS)" \ + HOSTCC="$(HOSTCC) $(HOST_CFLAGS) $(HOST_LDFLAGS)" \ ARCH=$(KERNEL_ARCH) \ INSTALL_MOD_PATH=$(TARGET_DIR) \ CROSS_COMPILE="$(TARGET_CROSS)" \