This option sometimes breaks builds with various external dependencies.
Especially vendor trees that have sourcedir path references.

Signed-off-by: Christian Melki <[email protected]>
---
 platforms/u-boot.in | 10 ++++++++++
 rules/u-boot.make   | 12 ++++++++++--
 2 files changed, 20 insertions(+), 2 deletions(-)

diff --git a/platforms/u-boot.in b/platforms/u-boot.in
index 410391fe8..0d8213f45 100644
--- a/platforms/u-boot.in
+++ b/platforms/u-boot.in
@@ -20,6 +20,16 @@ config U_BOOT_MD5
        string
        prompt "U-Boot source md5"
 
+config U_BOOT_BUILD_OOT
+       prompt "Out of tree build"
+       default y
+       bool
+       help
+         U-Boot is usually built out of tree.
+         But for some builds, f.ex. with firmware blobs, out of tree builds
+         can break because of vendors using source paths to files.
+         This is mostly a workaround for those type of builds.
+
 choice
        prompt "config system"
        default U_BOOT_CONFIGSYSTEM_LEGACY
diff --git a/rules/u-boot.make b/rules/u-boot.make
index 38c32bf27..2c6a1ada4 100644
--- a/rules/u-boot.make
+++ b/rules/u-boot.make
@@ -23,9 +23,14 @@ U_BOOT_SUFFIX                := tar.bz2
 U_BOOT_URL             := 
https://ftp.denx.de/pub/u-boot/$(U_BOOT).$(U_BOOT_SUFFIX)
 U_BOOT_SOURCE          := $(SRCDIR)/$(U_BOOT).$(U_BOOT_SUFFIX)
 U_BOOT_DIR             := $(BUILDDIR)/$(U_BOOT)
-U_BOOT_BUILD_DIR       := $(U_BOOT_DIR)-build
 U_BOOT_DEVPKG          := NO
+ifdef PTXCONF_U_BOOT_BUILD_OOT
+U_BOOT_BUILD_DIR       := $(U_BOOT_DIR)-build
 U_BOOT_BUILD_OOT       := KEEP
+else
+U_BOOT_BUILD_DIR       := $(U_BOOT_DIR)
+U_BOOT_BUILD_OOT       := NO
+endif
 
 ifdef PTXCONF_U_BOOT_CONFIGSYSTEM_KCONFIG
 U_BOOT_CONFIG  := $(call ptx/in-platformconfigdir, \
@@ -54,10 +59,13 @@ U_BOOT_WRAPPER_BLACKLIST := \
 
 U_BOOT_CONF_OPT                := \
        -C $(U_BOOT_DIR) \
-       O=$(U_BOOT_BUILD_DIR) \
        V=$(PTXDIST_VERBOSE) \
        $(call remove_quotes,$(PTXCONF_U_BOOT_CUSTOM_MAKE_OPTS))
 
+ifdef PTXCONF_U_BOOT_BUILD_OOT
+U_BOOT_CONF_OPT                += O=$(U_BOOT_BUILD_DIR)
+endif
+
 U_BOOT_MAKE_ENV                := \
        CROSS_COMPILE=$(BOOTLOADER_CROSS_COMPILE) \
        HOSTCC=$(HOSTCC)
-- 
2.30.2


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