Add clang add-on

xdp-tools requires clang, add clang during build
to meet xdp-tools requirement.

Signed-off-by: Vincent Li <vincent.mc.li@gmail.com>

lfs/llvm-project

@@ -0,0 +1,85 @@
+###############################################################################
+#                                                                             #
+# IPFire.org - A linux based firewall                                         #
+# Copyright (C) 2007-2023  IPFire Team  <info@ipfire.org>                     #
+#                                                                             #
+# This program is free software: you can redistribute it and/or modify        #
+# it under the terms of the GNU General Public License as published by        #
+# the Free Software Foundation, either version 3 of the License, or           #
+# (at your option) any later version.                                         #
+#                                                                             #
+# This program is distributed in the hope that it will be useful,             #
+# but WITHOUT ANY WARRANTY; without even the implied warranty of              #
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               #
+# GNU General Public License for more details.                                #
+#                                                                             #
+# You should have received a copy of the GNU General Public License           #
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.       #
+#                                                                             #
+###############################################################################
+
+###############################################################################
+# Definitions
+###############################################################################
+
+include Config
+
+VER        = 17.0.6
+
+THISAPP    = llvm-project-$(VER)
+DL_FILE    = $(THISAPP).tar.gz
+DL_FROM    = $(URL_IPFIRE)
+DIR_APP    = $(DIR_SRC)/$(THISAPP)
+TARGET     = $(DIR_INFO)/$(THISAPP)
+
+###############################################################################
+# Top-level Rules
+###############################################################################
+
+objects = $(DL_FILE)
+
+$(DL_FILE) = $(DL_FROM)/$(DL_FILE)
+
+$(DL_FILE)_BLAKE2 = 779a428c86b5e797a1f2264e33268d69799cf7d9eb9776c38af5efca2b5b6f94248bb48409306fbd61f0d4775ee7ada3cac5490b0bd55d8f56133af1df814b07
+
+install : $(TARGET)
+
+check : $(patsubst %,$(DIR_CHK)/%,$(objects))
+
+download :$(patsubst %,$(DIR_DL)/%,$(objects))
+
+b2 : $(subst %,%_BLAKE2,$(objects))
+
+###############################################################################
+# Downloading, checking, b2sum
+###############################################################################
+
+$(patsubst %,$(DIR_CHK)/%,$(objects)) :
+	@$(CHECK)
+
+$(patsubst %,$(DIR_DL)/%,$(objects)) :
+	@$(LOAD)
+
+$(subst %,%_BLAKE2,$(objects)) :
+	@$(B2SUM)
+
+###############################################################################
+# Installation Details
+###############################################################################
+
+$(TARGET) : $(patsubst %,$(DIR_DL)/%,$(objects))
+	@$(PREBUILD)
+	@rm -rf $(DIR_APP) && cd $(DIR_SRC) && tar zxf $(DIR_DL)/$(DL_FILE)
+
+	cd $(DIR_APP)/llvm && mkdir build 
+	cd $(DIR_APP)/llvm/build && cmake .. -G "Ninja" -DLLVM_TARGETS_TO_BUILD="BPF;X86" \
+		-DLLVM_ENABLE_PROJECTS="clang"    \
+		-DCMAKE_BUILD_TYPE=Release        \
+		-DLLVM_BUILD_RUNTIME=OFF \
+		-DCMAKE_INSTALL_PREFIX=/usr
+
+	cd $(DIR_APP)/llvm/build && ninja 
+	cd $(DIR_APP)/llvm/build && ninja install 
+
+	@rm -rf $(DIR_APP)
+	@$(POSTBUILD)

make.sh

@@ -1129,6 +1129,7 @@ buildipfire() {
   lfsmake2 screen
   lfsmake2 elfutils
   lfsmake2 pahole
+  lfsmake2 llvm-project
   lfsmake2 expat
   lfsmake2 libconfig
   lfsmake2 curl