linking on darwin: provide builtins and -arch

add missing system library to darwin linker job

first pass at linking on macos

handle libc include path and libc lib path differently

MacOS has the same int sizes as Linux

use llvm-config to find llvm include dirs

update readme

parseh: fix __cdecl causing a fn ptr to be double ptr

parseh: ZIG_PARSEH_CFLAGS -> ZIG_NATIVE_PARSEH_CFLAGS

parseh: support attributed types

parseh: more specific warning for different calling conventions

respect link order in source code

if any c imports fail, don't emit undefined identifier errors

dummy implementation of os_get_random_bytes for windows

fix some c header symbol collisions

add windows C int sizes

a = b % c uses the types of b and c instead of a

parseh: fix branching on undefined memory

add @ctz, @clz and compiler_rt implementation

if statement children nodes know if they're compiled out

avoid codegening functions never called from conditional compilation

fix build on GCC

c integer size takes into account architecture and OS

std: delete malloc and free

i386 support

add @compile_var("environ")

Merge pull request #126 from srgpqt/master

add @compile_var("os") and @compile_var("arch")

add compile error for missing enumeration value in switch

fix division by 0 crashing compiler

ability to cross compile

cleanup target data organization

targets command shows which ones are native

add "targets" command to list architectures, oses, abis

add link to intro in readme

don't create debug type for void arrays

minor readme rewording

if statements can be const expr evaluated

fix -dynamic-linker arg to ld when not overridden

@const_eval returns poison value for type when it fails

std: fix parse_u64 implementation and add test

fix build with GCC

support overriding the dynamic linker argument to ld

fix some of the ubuntu build trouble

support static linking against libc

add link to tetris example

parseh: tiny performance improvement

improve performance for get_fn_type

array.len generates a constant number literal expression

remove ptr field access of arrays

error for non const expr in array size outside fn

implement @const_eval

add debug info for loop variables

blocks with one statement pass constant expression eval

fix a bogus call to bignum_normalize causing assertion failure

fix debug type of ptr and len fields of slices

add debug info for slices

ability to explicitly cast maybe pointers to each other

unreachable return type can cast to any other return type

parseh: fix not properly demoting structs to typedefs

parseh understands simple string literal macros

std: remove auto flushing of stderr. use printf

add test for ?? return and add const expr eval for ? prefix op

rhs of ?? and %% can be any expression

parser recognizes %return in a prefix op expression

implement %defer and ?defer

codegen: return respects unconditional defer

simple unconditional defer support

parsing code for defer and more

update for loop syntax

add nonnull to functions with pointer return type

Merge branch 'realazthat-nonnull-branch'

add rand.float32 to standard library

fix explicit casting from integer literal to float

another planned feature complete

switch trap in debug mode when no prong found

support variable in switch expression prongs

no namespace required when switching on enum

switch statements resolve peer compatibility

codegen: fix switch expressions for enums with payloads

fix debug info for bool type

ability to explicitly cast bool to int

for loop supports break and continue

implement constant values for enums with payload

fix crash when initializing struct if field is invalid

move os_get_random_bytes to os.zig

allow defining errors with the same name

fix running tests when linking with libc

add ability to call function pointer field

skip analyzing parameters of invalid function call

fix handling of implicit casts in binary operators

test runner prints test names

basic support for building a test target

fix debug symbols for byval arguments

fix debug info for arrays being 1 element too short

add @compile_var("is_release")

types sized and aligned with LLVM target data layout API

add @compile_var builtin and "is_big_endian" compile var

fix false positive error with same named methods in incomplete struct

fix various semantic analyzer crashes