diff --git a/programming/build/llvm/actions.py b/programming/build/llvm/actions.py
old mode 100755
new mode 100644
index 5ac53ffde3..c75f2ee2b1
--- a/programming/build/llvm/actions.py
+++ b/programming/build/llvm/actions.py
@@ -9,90 +9,117 @@ from pisi.actionsapi import shelltools
 from pisi.actionsapi import get
 from pisi.actionsapi import cmaketools
 
-projects = "clang;polly;compiler-rt;mlir" if get.buildTYPE() == "emul32" else "clang;clang-tools-extra;lld;lldb;polly;compiler-rt;mlir"
 libdir = "/usr/lib32/llvm" if get.buildTYPE() == "emul32" else "/usr/lib/llvm"
 lib = "lib32" if get.buildTYPE() == "emul32" else "lib"
 libsuffix = "32" if get.buildTYPE() == "emul32" else ""
 
-NoStrip = ["/usr/lib/clang/%s/lib/linux" %get.srcVERSION()]
-
-WorkDir = "llvm-project-%s/llvm" %get.srcVERSION()
+NoStrip = ["/usr/lib/clang/%s/lib/linux" % get.srcVERSION()]
 
 def setup():
-    pisitools.ldflags.add("-fuse-ld=lld")
-    pisitools.cflags.remove("-D_FORTIFY_SOURCE=2")
-    pisitools.cxxflags.remove("-D_FORTIFY_SOURCE=2")
-    
+    #pisitools.ldflags.add("-fuse-ld=lld")
 
+    if get.buildTYPE() != "emul32":
+            if not shelltools.can_access_directory("tools/clang"):
+                shelltools.system("tar xf ../clang-%s.src.tar.xz -C tools" % get.srcVERSION())
+                shelltools.move("tools/clang-%s.src" % get.srcVERSION(), "tools/clang")
+
+                shelltools.system("tar xf ../clang-tools-extra-%s.src.tar.xz -C tools" % get.srcVERSION())
+                shelltools.move("tools/clang-tools-extra-*", "tools/clang/tools/extra")
+                
+                shelltools.system("tar xf ../lldb-%s.src.tar.xz -C tools" % get.srcVERSION())
+                shelltools.move("tools/lldb-*", "tools/lldb")
+                
+                shelltools.system("tar xf ../lld-%s.src.tar.xz -C tools" % get.srcVERSION())
+                shelltools.move("tools/lld-*", "tools/lld")
+                
+                shelltools.system("tar xf ../polly-%s.src.tar.xz -C tools" % get.srcVERSION())
+                shelltools.move("tools/polly-*", "tools/polly")
+
+            if not shelltools.can_access_directory("projects/compiler-rt"):
+                shelltools.system("tar xf ../compiler-rt-%s.src.tar.xz -C projects" % get.srcVERSION())
+                shelltools.move("projects/compiler-rt-%s.src" % get.srcVERSION(), "projects/compiler-rt")
+                
+                #clang patch
+                #shelltools.cd("tools")
+                #shelltools.system("patch -p1 < enable-SSP-and-PIE-by-default.patch")
+                #shelltools.cd("..")
+        
+                #shelltools.export("CC", "clang")
+                #shelltools.export("CXX", "clang++")
+                shelltools.export("CC", "gcc")
+                shelltools.export("CXX", "g++")
+    else:
+        shelltools.system("tar xf ../clang-%s.src.tar.xz -C tools" % get.srcVERSION())
+        shelltools.move("tools/clang-%s.src" % get.srcVERSION(), "tools/clang")
+    
     if get.buildTYPE() == "emul32":
-        shelltools.export("CC", "clang -m32")
-        shelltools.export("CXX", "clang++ -m32")
+        #shelltools.export("CC", "clang -m32")
+        #shelltools.export("CXX", "clang++ -m32")
+        shelltools.export("CC", "gcc -m32")
+        shelltools.export("CXX", "g++ -m32")
         shelltools.export("PKG_CONFIG_PATH","/usr/lib32/pkgconfig")
         
         #clang patch
         #shelltools.cd("tools")
         #shelltools.system("patch -p1 < enable-SSP-and-PIE-by-default.patch")
         #shelltools.cd("..")
-    else:
-        shelltools.export("CC", "clang")
-        shelltools.export("CXX", "clang++")
     
     shelltools.makedirs("build")
     
     shelltools.cd("build")
     
     if get.buildTYPE() != "emul32":
-        pisitools.cflags.add("-m64")
-        pisitools.cxxflags.add("-m64")
-        options = "-DLLVM_TARGET_ARCH:STRING=x86_64 \
-                   -DLLDB_ENABLE_LUA=OFF \
-                   -DLLVM_DEFAULT_TARGET_TRIPLE=%s " % get.HOST()
+        options = "-DCMAKE_C_FLAGS:STRING=-m64 \
+                              -DCMAKE_INSTALL_PREFIX=/usr \
+                            -DCMAKE_CXX_FLAGS:STRING=-m64 \
+                            -DLLVM_TARGET_ARCH:STRING=x86_64 \
+                            -DLLDB_ENABLE_LUA=OFF \
+                            -DLLVM_DEFAULT_TARGET_TRIPLE=%s " % get.HOST()
                           
     
     if get.buildTYPE() == "emul32":
-        pisitools.cflags.add("-m32")
-        pisitools.cxxflags.add("-m32")
-        options = "  -DCMAKE_INSTALL_PREFIX=/emul32 \
-                     -DLLVM_TARGET_ARCH:STRING=i686  \
-                     -DLLVM_LIBDIR_SUFFIX=32 \
-                     -DLLVM_DEFAULT_TARGET_TRIPLE='i686-pc-linux-gnu'"
+        options = "  -DCMAKE_C_FLAGS:STRING=-m32 \
+                            -DCMAKE_INSTALL_PREFIX=/emul32 \
+                            -DLLVM_TARGET_ARCH:STRING=i686  \
+                            -DLLVM_LIBDIR_SUFFIX=32 \
+                            -DLLVM_DEFAULT_TARGET_TRIPLE='i686-pc-linux-gnu' \
+                            -DCMAKE_CXX_FLAGS:STRING=-m32"
     
     
     cmaketools.configure("-DCMAKE_BUILD_TYPE=Release \
-                          -G 'Unix Makefiles' \
-                          %s \
-                          -DLLVM_ENABLE_PROJECTS='%s' \
-                          -DLLVM_ENABLE_FFI=ON \
-                          -DLLVM_BUILD_DOCS=OFF \
-                          -DLLVM_ENABLE_RTTI=ON \
-                          -DLLVM_ENABLE_EH=ON \
-                          -DBUILD_SHARED_LIBS=ON \
-                          -DLLVM_INCLUDEDIR=/usr/include \
-                          -DLLVM_ENABLE_ASSERTIONS=OFF \
-                          -DFFI_INCLUDE_DIR=/usr/include \
-                          -DCOMPILER_RT_USE_LIBCXX=OFF \
-                          -DCLANG_DEFAULT_RTLIB=compiler-rt \
-                          .. " % (options, projects), sourceDir=".." ) 
+                                        %s \
+                                        -DLLVM_ENABLE_FFI=ON \
+                                        -DLLVM_BUILD_DOCS=OFF \
+                                        -DLLVM_ENABLE_RTTI=ON \
+                                        -DLLVM_ENABLE_EH=ON \
+                                        -DLLVM_BUILD_LLVM_DYLIB=ON \
+                                        -DLLVM_LINK_LLVM_DYLIB=ON \
+                                        -DLLVM_INCLUDEDIR=/usr/include \
+                                        -DLLVM_ENABLE_ASSERTIONS=OFF \
+                                        -DFFI_INCLUDE_DIR=/usr/lib/libffi-3.2.1/include \
+                                        -DCOMPILER_RT_USE_LIBCXX=OFF \
+                                        -DLIBOMP_USE_HIER_SCHED=ON" % (options), sourceDir=".." ) 
 
 def build():
     shelltools.makedirs("build")
     shelltools.cd("build")
 
-    autotools.make()
+    cmaketools.make()
 
 def install():
     shelltools.makedirs("build")
     shelltools.cd("build")
     
-    autotools.rawInstall("DESTDIR=%s" % get.installDIR())
+    cmaketools.rawInstall("DESTDIR=%s" % get.installDIR())
+        
+    if get.buildTYPE() == "emul32":
         
-    if get.buildTYPE() == "emul32":        
         pisitools.domove("/emul32/lib32/", "/usr/")
         pisitools.insinto("/usr/include/llvm/Config/","%s/emul32/include/llvm/Config/llvm-config.h" % get.installDIR(),"llvm-config-32.h")
         pisitools.insinto("/usr/bin/","%s/emul32/bin/llvm-config" % get.installDIR(),"llvm-config-32")
         pisitools.removeDir("/emul32")
-        #pisitools.remove("/usr/lib/python2.7/site-packages/six.py")
+        pisitools.remove("/usr/lib/python2.7/site-packages/six.py")
    
     shelltools.cd ("..")
-       
-    pisitools.dodoc("LICENSE.TXT", "README.txt")
+    
+    pisitools.dodoc("CREDITS.TXT", "LICENSE.TXT", "README.txt")
diff --git a/programming/build/llvm/pspec.xml b/programming/build/llvm/pspec.xml
old mode 100755
new mode 100644
index 4819ec566a..0c1bef0247
--- a/programming/build/llvm/pspec.xml
+++ b/programming/build/llvm/pspec.xml
@@ -11,7 +11,13 @@
         <License>NCSA</License>
         <Summary>The Low Level Virtual Machine</Summary>
         <Description>The LLVM Project is a collection of modular and reusable compiler and toolchain technologies. Despite its name, LLVM has little to do with traditional virtual machines, though it does provide helpful libraries that can be used to build them.</Description>
-       <Archive sha1sum="3c88390b19ac6779c8d9c89256892d690903412b" type="tarxz">https://github.com/llvm/llvm-project/releases/download/llvmorg-11.0.0/llvm-project-11.0.0.tar.xz</Archive>
+       <Archive sha1sum="25d07260f3b7bf4f647e115c4a663fdeda130fbd" type="tarxz">https://github.com/llvm/llvm-project/releases/download/llvmorg-10.0.1/llvm-10.0.1.src.tar.xz</Archive>
+       <Archive sha1sum="0e61e92b22a620fe7f833fa8b2a56f2db96f7335" type="binary">https://github.com/llvm/llvm-project/releases/download/llvmorg-10.0.1/clang-10.0.1.src.tar.xz</Archive>
+       <Archive sha1sum="26c996da082677aca1016bcf2141dbff01dc7300" type="binary">https://github.com/llvm/llvm-project/releases/download/llvmorg-10.0.1/clang-tools-extra-10.0.1.src.tar.xz</Archive>
+       <Archive sha1sum="90b946ff7b850bcded598509a10d0795e7da3f63" type="binary">https://github.com/llvm/llvm-project/releases/download/llvmorg-10.0.1/lldb-10.0.1.src.tar.xz</Archive>
+	   <Archive sha1sum="8581337dba00041c2633f61bfb5be778df83cff7" type="binary">https://github.com/llvm/llvm-project/releases/download/llvmorg-10.0.1/lld-10.0.1.src.tar.xz</Archive>
+	   <Archive sha1sum="fd1ece6c77d420f52d0502bc2b34075c353eed21" type="binary">https://github.com/llvm/llvm-project/releases/download/llvmorg-10.0.1/polly-10.0.1.src.tar.xz</Archive>
+       <Archive sha1sum="ee6077b4728b3c750e476938cead11cea45b49ff" type="binary">https://github.com/llvm/llvm-project/releases/download/llvmorg-10.0.1/compiler-rt-10.0.1.src.tar.xz</Archive>
         <BuildDependencies>
             <Dependency>zlib-devel</Dependency>
             <Dependency>libxml2-devel</Dependency>
@@ -20,14 +26,14 @@
             <Dependency>libffi-devel</Dependency>
             <Dependency>groff</Dependency>
             <Dependency>swig</Dependency>
+            <Dependency>python-devel</Dependency>
             <Dependency>libedit-devel</Dependency>
-            <Dependency versionFrom="3.18.3">cmake</Dependency>
-            <Dependency versionFrom="3.8.6">python3-devel</Dependency>
+            <Dependency>cmake</Dependency>
             <!-- Use new plugin-api.h header file from binutils to enable LLVM gold plugin -->
             <Dependency>binutils</Dependency>
             <Dependency>gcc</Dependency>
-            <Dependency>llvm-clang</Dependency>
-            <Dependency>lld</Dependency>
+<!--             <Dependency>llvm-clang</Dependency>	  -->
+<!--             <Dependency>lld</Dependency>			  -->
         </BuildDependencies>
         <AdditionalFiles>
             <AdditionalFile owner="root" permission="0644" target="tools/enable-SSP-and-PIE-by-default.patch">enable-SSP-and-PIE-by-default.patch</AdditionalFile>
@@ -50,7 +56,6 @@
             <Path fileType="executable">/usr/bin</Path>
             <Path fileType="executable">/usr/bin/llvm-config</Path>
             <Path fileType="header">/usr/include/llvm*</Path>
-            <Path fileType="header">/usr/include/mlir*</Path>
             <Path fileType="header">/usr/include/polly*</Path>
             <Path fileType="library">/usr/lib/llvm</Path>
             <Path fileType="library">/usr/lib</Path>
@@ -79,12 +84,10 @@
         </RuntimeDependencies>
         <Files>
             <Path fileType="library">/usr/lib/libLLVM*.so</Path>
-			<Path fileType="library">/usr/lib/libLLVM*.so.11</Path>
+			<Path fileType="library">/usr/lib/libLLVM*.so.10</Path>
             <Path fileType="library">/usr/lib/LLVMgold.*</Path>
             <Path fileType="library">/usr/lib/libLTO.*</Path>
 			<Path fileType="library">/usr/lib/libPolly*.so</Path>
-			<Path fileType="library">/usr/lib/libMLIR*</Path>			
-			<Path fileType="library">/usr/lib/libmlir*</Path>
             <Path fileType="library">/usr/lib/bfd-plugins/LLVMgold.so</Path>
             <Path fileType="data">/usr/share/licenses/llvm-libs/LICENSE</Path>
         </Files>
@@ -101,7 +104,7 @@
             <Dependency>libedit</Dependency>
             <Dependency>libgcc</Dependency>
             <Dependency>ncurses</Dependency>
-            <Dependency>python3</Dependency>
+            <Dependency>python</Dependency>
             <Dependency>libxml2</Dependency>
             <Dependency>xz</Dependency>
         </RuntimeDependencies>
@@ -140,7 +143,7 @@
             <Dependency>libedit</Dependency>
             <Dependency>libgcc</Dependency>
             <Dependency>ncurses</Dependency>
-            <Dependency>python3</Dependency>
+            <Dependency>python</Dependency>
             <Dependency>libxml2</Dependency>
         </RuntimeDependencies>
         <Files>
@@ -191,14 +194,14 @@
             <Path fileType="executable">/usr/libexec/c++-*</Path>
         </Files>
     </Package>
-	
+
     <Package>
         <Name>compiler-rt</Name>
         <Summary>Various runtime libraries used by Clang</Summary>
         <RuntimeDependencies>
         </RuntimeDependencies>
         <Files>
-            <Path fileType="library">/usr/lib/clang/11.0.0/lib/linux/*.so</Path>
+            <Path fileType="library">/usr/lib/clang/10.0.1/lib/linux/*.so</Path>
         </Files>
     </Package>
 
@@ -236,7 +239,6 @@
         <Files>
             <Path fileType="header">/usr/include/clang</Path>
             <Path fileType="header">/usr/include/clang-c</Path>
-            <Path fileType="header">/usr/include/clang-tidy</Path>
         </Files>
     </Package>
 
@@ -277,13 +279,6 @@
     </Package>
 
     <History>
-        <Update release="14">
-            <Date>2020-11-15</Date>
-            <Version>11.0.0</Version>
-            <Comment>Version bump.</Comment>
-            <Name>İdris Kalp</Name>
-            <Email>idriskalp@gmail.com</Email>
-        </Update>
         <Update release="13">
             <Date>2020-09-23</Date>
             <Version>10.0.1</Version>