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boot/uboot: fix build of old U-Boot versions

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Since commit 0dca644e44 ("boot/uboot: fix
missing host-openssl for i.MX28 target"), we pass HOSTCFLAGS/HOSTLDFLAGS
in the environment of U-Boot when building. This is needed to allow
U-Boot to find the OpenSSL headers/libraries when they are
needed. Unfortunately, this breaks the build with old U-Boot versions as
the U-Boot Makefiles were not designed to have HOSTCFLAGS passed in,
which causes some important CFLAGS from the U-Boot build system to be
ignored.

As suggested by Arnout, we pass the HOST_CFLAGS inside HOSTCC directly,
which allows to pass the CFLAGS without overriding the internal U-Boot
CFLAGS.

Tested with an old U-Boot (2012.10), and a modern U-Boot in a
configuration that needs OpenSSL.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit is contained in:
Thomas Petazzoni 2016-07-05 11:31:08 +02:00
parent e6cdb4dd3e
commit 1c2eb2684f
1 changed files with 1 additions and 1 deletions
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2
boot/uboot/uboot.mk
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@ -93,7 +93,7 @@ endif
UBOOT_MAKE_OPTS += \
CROSS_COMPILE="$(TARGET_CROSS)" \
ARCH=$(UBOOT_ARCH) \
HOSTCFLAGS="$(HOST_CFLAGS)" \
HOSTCC="$(HOSTCC) $(HOST_CFLAGS)" \
HOSTLDFLAGS="$(HOST_LDFLAGS)"
ifeq ($(BR2_TARGET_UBOOT_NEEDS_DTC),y)