linuxptp: Drop unneeded downstream patches

Drop Use-cross-cpp-in-incdefs.patch which is "Inappropriate"
but what is fixing can be done in an "Upstreamable" way
by the new downstream patch
0002-linuxptp-Use-CC-in-incdefs.sh.patch.

Drop build-Allow-CC-and-prefix-to-be-overriden.patch that can
be removed by passing CC='${CC}' in EXTRA_OEMAKE and, as already
the case, passing prefix=${prefix} in the oe_runmake command line.

While there, drop ARCH from EXTRA_OEMAKE because it's not used in
the codebase.

Signed-off-by: Luca Fancellu <luca.fancellu@arm.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-oe/recipes-connectivity/linuxptp/linuxptp/0002-linuxptp-Use-CC-in-incdefs.sh.patch

@@ -0,0 +1,34 @@
+From 2cc19a679ec37715df546dd9f00d8d9b0ab20059 Mon Sep 17 00:00:00 2001
+From: Luca Fancellu <luca.fancellu@arm.com>
+Date: Wed, 18 Oct 2023 11:10:18 +0100
+Subject: [PATCH] linuxptp: Use ${CC} in incdefs.sh
+
+The Makefile is defining CC and incdefs.sh is using
+${CROSS_COMPILE}cpp inside it, allowing both to use different
+compilers depending on what the user pass during make invocation
+as CC.
+
+Align them using ${CC} also inside incdefs.sh
+
+Signed-off-by: Luca Fancellu <luca.fancellu@arm.com>
+Upstream-Status: Pending
+---
+ incdefs.sh | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/incdefs.sh b/incdefs.sh
+index a9e94f777f6b..391e63c7fac6 100755
+--- a/incdefs.sh
++++ b/incdefs.sh
+@@ -27,7 +27,7 @@ user_flags()
+ 	printf " -D_GNU_SOURCE"
+ 
+ 	# Get list of directories searched for header files.
+-	dirs=$(echo "" | ${CROSS_COMPILE}cpp -Wp,-v 2>&1 >/dev/null | grep ^" /")
++	dirs=$(${CC} -E -Wp,-v -xc /dev/null 2>&1 >/dev/null | grep ^" /")
+ 
+ 	# Look for clock_adjtime().
+ 	for d in $dirs; do
+-- 
+2.34.1
+

meta-oe/recipes-connectivity/linuxptp/linuxptp/Use-cross-cpp-in-incdefs.patch

@@ -1,28 +0,0 @@
-From be8808005772da48c052cf34a343a6d140541f6a Mon Sep 17 00:00:00 2001
-From: Marcel Ziswiler <marcel.ziswiler@toradex.com>
-Date: Fri, 23 Dec 2016 18:12:29 +0100
-Subject: [PATCH] linuxptp: Use cross cpp in incdefs
-
-Use cross cpp incdefs.sh shell script since we are doing cross compiling
-we need to ensure we use correct setttings from toolchain
-
-Upstream-Status: Inappropriate [OE-Specific]
-Signed-off-by: Khem Raj <raj.khem@gmail.com>
-
----
- incdefs.sh | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/incdefs.sh b/incdefs.sh
-index a9e94f7..dd1692f 100755
---- a/incdefs.sh
-+++ b/incdefs.sh
-@@ -27,7 +27,7 @@ user_flags()
- 	printf " -D_GNU_SOURCE"
- 
- 	# Get list of directories searched for header files.
--	dirs=$(echo "" | ${CROSS_COMPILE}cpp -Wp,-v 2>&1 >/dev/null | grep ^" /")
-+	dirs=$(${CPP} -Wp,-v -xc /dev/null 2>&1 >/dev/null | grep ^" /")
- 
- 	# Look for clock_adjtime().
- 	for d in $dirs; do

meta-oe/recipes-connectivity/linuxptp/linuxptp/build-Allow-CC-and-prefix-to-be-overriden.patch

@@ -1,35 +0,0 @@
-From 886bca11ff8fcc55386b6e4397b13e64950f93fb Mon Sep 17 00:00:00 2001
-From: Otavio Salvador <otavio@ossystems.com.br>
-Date: Tue, 1 Jul 2014 17:37:31 -0300
-Subject: [PATCH] build: Allow CC and prefix to be overriden
-
-Upstream-Status: Pending
-
-Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
-
----
- makefile | 4 ++--
- 1 file changed, 2 insertions(+), 2 deletions(-)
-
-diff --git a/makefile b/makefile
-index 3e3b8b3..5c1a1f9 100644
---- a/makefile
-+++ b/makefile
-@@ -18,7 +18,7 @@
- KBUILD_OUTPUT ?=
- 
- DEBUG	=
--CC	= $(CROSS_COMPILE)gcc
-+CC	?= $(CROSS_COMPILE)gcc
- VER     = -DVER=$(version)
- CFLAGS	= -Wall $(VER) $(incdefs) $(DEBUG) $(EXTRA_CFLAGS)
- LDLIBS	= -lm -lrt -pthread $(EXTRA_LDFLAGS)
-@@ -43,7 +43,7 @@ incdefs := $(shell $(srcdir)/incdefs.sh)
- version := $(shell $(srcdir)/version.sh $(srcdir))
- VPATH	= $(srcdir)
- 
--prefix	= /usr/local
-+prefix	?= /usr/local
- sbindir	= $(prefix)/sbin
- mandir	= $(prefix)/man
- man8dir	= $(mandir)/man8

meta-oe/recipes-connectivity/linuxptp/linuxptp_4.1.bb

@@ -8,9 +8,8 @@ LIC_FILES_CHKSUM = "file://COPYING;md5=b234ee4d69f5fce4486a80fdaf4a4263"
 LINUXPTP_SRC_URI = "http://sourceforge.net/projects/linuxptp"
 
 SRC_URI = "${LINUXPTP_SRC_URI}/files/v4.1/linuxptp-${PV}.tgz \
-           file://build-Allow-CC-and-prefix-to-be-overriden.patch \
-           file://Use-cross-cpp-in-incdefs.patch \
            file://0001-include-string.h-for-strncpy.patch \
+           file://0002-linuxptp-Use-CC-in-incdefs.sh.patch \
            file://systemd/phc2sys@.service \
            file://systemd/ptp4l@.service \
            "
@@ -23,7 +22,7 @@ inherit systemd
 UPSTREAM_CHECK_URI = "${LINUXPTP_SRC_URI}/files/"
 UPSTREAM_CHECK_REGEX = "(?P<pver>\d+(\.\d+)+)/"
 
-EXTRA_OEMAKE = "ARCH=${TARGET_ARCH} EXTRA_CFLAGS='${CFLAGS}' mandir=${mandir}"
+EXTRA_OEMAKE = "CC='${CC}' EXTRA_CFLAGS='${CFLAGS}' mandir='${mandir}'"
 
 export KBUILD_OUTPUT="${RECIPE_SYSROOT}"