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(cached) GNU/Linux ld.so checking how to hardcode library paths into programs... immediate checking for llvm-config... /home/fhussain/repos/research/llvmcentral/build/bin/llvm-config checking for LLVM version... 4.0.0svn checking can compile with and link with LLVM(engine)... yes checking for flex... flex checking lex output file root... lex.yy checking lex library... -lfl checking whether yytext is a pointer... yes checking for perl... /usr/bin/perl checking for perl version... This is perl 5, version 22, subversion 1 (v5.22.1) built for x86_64-linux-gnu-thread-multi checking for perl module Exporter::Lite... ok checking for perl module File::Which... ok checking for perl module Getopt::Tabular... ok checking for perl module Regexp::Common... ok checking for perl module Sys::CPU... ok checking for perl module Term::ReadKey... ok checking for clang-format... /home/fhussain/repos/research/llvmcentral/build/bin/clang-format checking that generated files are newer than configure... done configure: creating ./config.status config.status: creating Makefile config.status: creating clang_delta/Makefile config.status: creating clex/Makefile config.status: creating creduce/Makefile config.status: creating delta/Makefile config.status: creating scripts/Makefile config.status: creating tests/Makefile config.status: creating unifdef/Makefile config.status: creating config.h config.status: config.h is unchanged config.status: executing depfiles commands config.status: executing libtool commands