configure: warning: You will need bison if you want to regenerate the PHP parsers. checking for flex... lex checking for yywrap in -ll... no checking lex output file root... ./configure: line 2422: lex: command not found configure: error: cannot find output from lex; giving up ERROR: Could not configure PHP What am I missing on my system that causes this installation to fail
Install bison and flex. If you use apt, you can use Code: apt-cache search flex apt-cache search bison to find appropriate packages.