file not found on Ubuntu

[thejoshwolfe]

josh@jash:~/dev/zig$ mkdir build
josh@jash:~/dev/zig$ cd build
josh@jash:~/dev/zig/build$ cmake ..
-- The CXX compiler identification is GNU 5.2.1
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
Configuring zig version 0.0.0
-- Found LLVM: -lLLVMLTO -lLLVMObjCARCOpts -lLLVMLinker -lLLVMBitWriter -lLLVMIRReader -lLLVMBPFCodeGen -lLLVMBPFDesc -lLLVMBPFInfo -lLLVMBPFAsmPrinter -lLLVMAMDGPUCodeGen -lLLVMAMDGPUAsmParser -lLLVMAMDGPUUtils -lLLVMAMDGPUDesc -lLLVMAMDGPUInfo -lLLVMAMDGPUAsmPrinter -lLLVMSystemZDisassembler -lLLVMSystemZCodeGen -lLLVMSystemZAsmParser -lLLVMSystemZDesc -lLLVMSystemZInfo -lLLVMSystemZAsmPrinter -lLLVMHexagonDisassembler -lLLVMHexagonCodeGen -lLLVMHexagonDesc -lLLVMHexagonInfo -lLLVMNVPTXCodeGen -lLLVMNVPTXDesc -lLLVMNVPTXInfo -lLLVMNVPTXAsmPrinter -lLLVMCppBackendCodeGen -lLLVMCppBackendInfo -lLLVMMSP430CodeGen -lLLVMMSP430Desc -lLLVMMSP430Info -lLLVMMSP430AsmPrinter -lLLVMXCoreDisassembler -lLLVMXCoreCodeGen -lLLVMXCoreDesc -lLLVMXCoreInfo -lLLVMXCoreAsmPrinter -lLLVMMipsDisassembler -lLLVMMipsCodeGen -lLLVMMipsAsmParser -lLLVMMipsDesc -lLLVMMipsInfo -lLLVMMipsAsmPrinter -lLLVMAArch64Disassembler -lLLVMAArch64CodeGen -lLLVMAArch64AsmParser -lLLVMAArch64Desc -lLLVMAArch64Info -lLLVMAArch64AsmPrinter -lLLVMAArch64Utils -lLLVMARMDisassembler -lLLVMARMCodeGen -lLLVMARMAsmParser -lLLVMARMDesc -lLLVMARMInfo -lLLVMARMAsmPrinter -lLLVMPowerPCDisassembler -lLLVMPowerPCCodeGen -lLLVMPowerPCAsmParser -lLLVMPowerPCDesc -lLLVMPowerPCInfo -lLLVMPowerPCAsmPrinter -lLLVMSparcDisassembler -lLLVMSparcCodeGen -lLLVMSparcAsmParser -lLLVMSparcDesc -lLLVMSparcInfo -lLLVMSparcAsmPrinter -lLLVMMIRParser -lLLVMAsmParser -lLLVMLibDriver -lLLVMOption -lLLVMDebugInfoPDB -lLLVMTableGen -lLLVMOrcJIT -lLLVMLineEditor -lLLVMX86Disassembler -lLLVMX86AsmParser -lLLVMX86CodeGen -lLLVMSelectionDAG -lLLVMAsmPrinter -lLLVMX86Desc -lLLVMMCDisassembler -lLLVMX86Info -lLLVMX86AsmPrinter -lLLVMX86Utils -lLLVMMCJIT -lLLVMDebugInfoDWARF -lLLVMPasses -lLLVMipo -lLLVMVectorize -lLLVMInterpreter -lLLVMExecutionEngine -lLLVMRuntimeDyld -lLLVMCodeGen -lLLVMTarget -lLLVMScalarOpts -lLLVMProfileData -lLLVMObject -lLLVMMCParser -lLLVMBitReader -lLLVMInstCombine -lLLVMInstrumentation -lLLVMTransformUtils -lLLVMipa -lLLVMMC -lLLVMAnalysis -lLLVMCore -lLLVMSupport;-lz -lpthread -lffi -ledit -ltinfo -ldl -lm  
-- Configuring done
-- Generating done
-- Build files have been written to: /home/josh/dev/zig/build
josh@jash:~/dev/zig/build$ make
Scanning dependencies of target run_tests
[  7%] Building CXX object CMakeFiles/run_tests.dir/src/buffer.cpp.o
[ 15%] Building CXX object CMakeFiles/run_tests.dir/src/util.cpp.o
[ 23%] Building CXX object CMakeFiles/run_tests.dir/src/os.cpp.o
[ 30%] Building CXX object CMakeFiles/run_tests.dir/test/standalone.cpp.o
Linking CXX executable run_tests
[ 30%] Built target run_tests
Scanning dependencies of target zig
[ 38%] Building CXX object CMakeFiles/zig.dir/src/buffer.cpp.o
[ 46%] Building CXX object CMakeFiles/zig.dir/src/error.cpp.o
[ 53%] Building CXX object CMakeFiles/zig.dir/src/main.cpp.o
[ 61%] Building CXX object CMakeFiles/zig.dir/src/parser.cpp.o
[ 69%] Building CXX object CMakeFiles/zig.dir/src/tokenizer.cpp.o
[ 76%] Building CXX object CMakeFiles/zig.dir/src/util.cpp.o
[ 84%] Building CXX object CMakeFiles/zig.dir/src/codegen.cpp.o
[ 92%] Building CXX object CMakeFiles/zig.dir/src/zig_llvm.cpp.o
[100%] Building CXX object CMakeFiles/zig.dir/src/os.cpp.o
Linking CXX executable zig
[100%] Built target zig
josh@jash:~/dev/zig/build$ ./zig build --output hello ../test/hello.zig 
Original source:
----------------
#link("c")
extern {
    fn puts(s: *mut u8) -> i32;
    fn exit(code: i32) -> unreachable;
}

fn _start() -> unreachable {
    puts("Hello, world!");
    exit(0);
}


Tokens:
---------
NumberSign #
Symbol link
LParen (
StringLiteral "c"
RParen )
Extern extern
LBrace {
Fn fn
Symbol puts
LParen (
Symbol s
Colon :
Star *
Mut mut
Symbol u8
RParen )
Arrow ->
Symbol i32
Semicolon ;
Fn fn
Symbol exit
LParen (
Symbol code
Colon :
Symbol i32
RParen )
Arrow ->
Unreachable unreachable
Semicolon ;
RBrace }
Fn fn
Symbol _start
LParen (
RParen )
Arrow ->
Unreachable unreachable
LBrace {
Symbol puts
LParen (
StringLiteral "Hello, world!"
RParen )
Semicolon ;
Symbol exit
LParen (
NumberLiteral 0
RParen )
Semicolon ;
RBrace }
EOF 

AST:
------
Root
  ExternBlock
    FnDecl
      FnProto 'puts'
        ParamDecl 's'
          'mut' PointerType
            Type 'u8'
        Type 'i32'
    FnDecl
      FnProto 'exit'
        ParamDecl 'code'
          Type 'i32'
        Type 'unreachable'
  FnDef
    FnProto '_start'
      Type 'unreachable'
    Block
      FnCallExpression
        FnCall 'puts'
          StringLiteralExpression 'Hello, world!'
      FnCallExpression
        FnCall 'exit'
          NumberLiteralExpression 0

Semantic Analysis:
--------------------
OK

Code Generation:
------------------
; ModuleID = 'ZigModule'

@0 = private unnamed_addr constant [14 x i8] c"Hello, world!\00"

; Function Attrs: noreturn
declare void @exit(i32) #0

declare i32 @puts(i8*)

; Function Attrs: noreturn nounwind
define void @_start() #1 {
entry:
  %0 = call i32 @puts(i8* getelementptr inbounds ([14 x i8], [14 x i8]* @0, i32 0, i32 0)), !dbg !8
  call void @exit(i32 0), !dbg !10
  unreachable, !dbg !10
}

attributes #0 = { noreturn }
attributes #1 = { noreturn nounwind }

!llvm.dbg.cu = !{!0}

!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "zig 0.0.0", isOptimized: false, runtimeVersion: 0, emissionKind: 1, enums: !2, subprograms: !3)
!1 = !DIFile(filename: "hello.zig", directory: "../test")
!2 = !{}
!3 = !{!4}
!4 = !DISubprogram(name: "_start", scope: !1, file: !1, line: 7, type: !5, isLocal: false, isDefinition: true, scopeLine: 7, isOptimized: false, function: void ()* @_start, variables: !2)
!5 = !DISubroutineType(types: !6)
!6 = !{!7}
!7 = !DIBasicType(name: "void", encoding: DW_ATE_unsigned)
!8 = !DILocation(line: 8, column: 5, scope: !9)
!9 = distinct !DILexicalBlock(scope: !4, file: !1, line: 7, column: 28)
!10 = !DILocation(line: 9, column: 5, scope: !9)

Link:
-------
OK
josh@jash:~/dev/zig/build$ ./hello 
bash: ./hello: No such file or directory

The problem is that ./hello is linked against /lib/ld64.so.1 instead of /lib64/ld-linux-x86-64.so.2. This seems to be due to ld being misconfigured on Debian.

This patch can work around the issue:

diff --git a/src/codegen.cpp b/src/codegen.cpp
index d59eff3..8318a43 100644
--- a/src/codegen.cpp
+++ b/src/codegen.cpp
@@ -721,6 +721,8 @@ void code_gen_link(CodeGen *g, const char *out_file) {
     if (g->is_static) {
         args.append("-static");
     }
+    args.append("-dynamic-linker");
+    args.append("/lib64/ld-linux-x86-64.so.2");
     args.append("-o");
     args.append(out_file);
     args.append((const char *)buf_ptr(&out_file_o));