Fix llvm and clang version in INSTALL.md

INSTALL.md

@@ -341,7 +341,7 @@ sudo apt-get -y install bison build-essential cmake flex git libedit-dev \
 sudo apt install -y bison build-essential cmake flex git libedit-dev \
  libllvm7 llvm-7-dev libclang-7-dev python zlib1g-dev libelf-dev libfl-dev python3-distutils
  
-# For Hirsute (21.04)  or Impish (21.10)
+# For Hirsute (21.04) or Impish (21.10)
 sudo apt install -y bison build-essential cmake flex git libedit-dev libllvm11 llvm-11-dev libclang-11-dev python zlib1g-dev libelf-dev libfl-dev python3-distutils
 
 # For other versions
@@ -387,7 +387,7 @@ mkdir bcc-build
 cd bcc-build/
 
 ## here llvm should always link shared library
-cmake ../bcc -DCMAKE_INSTALL_PREFIX=/usr -DENABLE_LLVM_SHARED=1 
+cmake ../bcc -DCMAKE_INSTALL_PREFIX=/usr -DENABLE_LLVM_SHARED=1
 make -j10
 make install 
 
@@ -501,23 +501,23 @@ sudo yum install -y luajit luajit-devel # for Lua support
 You could compile LLVM from source code
 
 ```
-curl  -LO  http:https://releases.llvm.org/7.0.1/llvm-7.0.1.src.tar.xz
-curl  -LO  http:https://releases.llvm.org/7.0.1/cfe-7.0.1.src.tar.xz
-tar -xf cfe-7.0.1.src.tar.xz
-tar -xf llvm-7.0.1.src.tar.xz
+curl -LO http:https://releases.llvm.org/10.0.0/llvm-10.0.0.src.tar.xz
+curl -LO http:https://releases.llvm.org/10.0.0/cfe-10.0.0.src.tar.xz
+tar -xf cfe-10.0.0.src.tar.xz
+tar -xf llvm-10.0.0.src.tar.xz
 
 mkdir clang-build
 mkdir llvm-build
 
 cd llvm-build
 cmake3 -G "Unix Makefiles" -DLLVM_TARGETS_TO_BUILD="BPF;X86" \
- -DCMAKE_BUILD_TYPE=Release ../llvm-7.0.1.src
+ -DCMAKE_BUILD_TYPE=Release ../llvm-10.0.0.src
 make
 sudo make install
 
 cd ../clang-build
 cmake3 -G "Unix Makefiles" -DLLVM_TARGETS_TO_BUILD="BPF;X86" \
- -DCMAKE_BUILD_TYPE=Release ../cfe-7.0.1.src
+ -DCMAKE_BUILD_TYPE=Release ../cfe-10.0.0.src
 make
 sudo make install
 cd ..
@@ -528,8 +528,8 @@ or install from centos-release-scl
 ```
 yum install -y centos-release-scl
 yum-config-manager --enable rhel-server-rhscl-7-rpms
-yum install -y devtoolset-7 llvm-toolset-7 llvm-toolset-7-llvm-devel llvm-toolset-7-llvm-static llvm-toolset-7-clang-devel
-source scl_source enable devtoolset-7 llvm-toolset-7
+yum install -y devtoolset-7 llvm-toolset-10 llvm-toolset-10-llvm-devel llvm-toolset-10-llvm-static llvm-toolset-10-clang-devel
+source scl_source enable devtoolset-7 llvm-toolset-10
 ```
 
 For permanently enable scl environment, please check https://access.redhat.com/solutions/527703.