better installation example
MODIFY
README.md
README.md
@@ -175,7 +175,13 @@ If you want to build afl++ yourself you have many options.
The easiest choice is to build and install everything:
```shell
-sudo apt install build-essential python3-dev automake flex bison libglib2.0-dev libpixman-1-dev python3-setuptools clang lld llvm llvm-dev libstdc++-dev
+sudo apt-get update
+sudo apt-get install -y build-essential python3-dev automake git flex bison libglib2.0-dev libpixman-1-dev python3-setuptools
+# try to install llvm 11 and install the distro default if that fails
+sudo apt-get install -y lld-11 llvm-11 llvm-11-dev clang-11 || sudo apt-get install -y lld llvm llvm-dev clang
+sudo apt-get install -y gcc-$(gcc --version|head -n1|sed 's/.* //'|sed 's/\..*//')-plugin-dev libstdc++-$(gcc --version|head -n1|sed 's/.* //'|sed 's/\..*//')-dev
+git clone https://github.com/AFLplusplus/AFLplusplus && cd AFLplusplus
+cd AFLplusplus
make distrib
sudo make install
```

better installation example