Added folders: libmac & vectorclass & zlib-1.2.7

These are just copies from what's in iqtree2.
These aren't necessarily needed (it depends on what
flags are used!).  But they might be.

Author: JamesBarbetti

libmac/libomp.a

@@ -0,0 +1,9 @@
+add_library(vectorclass
+instrset_detect.cpp
+instrset.h
+vectorclass.h
+vectorf64.h
+vectorf128.h
+vectorf256.h
+vectorf512.h
+)

vectorclass/CMakeLists.txt

@@ -0,0 +1,176 @@
+Change log for vectorclass.zip
+------------------------------
+
+Projected future version, 2018:
+  * use mask registers for boolean vectors of all sizes with AVX512VL
+  * use C++14
+  * replace long template argument lists by constant arrays
+  
+2017-07-27 version 1.30
+  * fixed bug in permute8f for a particular combination of indexes  
+  
+2017-05-10 version 1.29
+  * Reversed Apple Clang patch in version 1.28 because the problem has reoccurred in
+    later versions of Clang
+  
+2017-05-02 version 1.28
+  * Fixed problem with Apple Clang version 6.2 in vectorf128.h
+  * Fixed return type for Vec8sb operator > (Vec8us, Vec8us)  
+  * cpuid function modified in instrset_detect.cpp
+  
+2017-02-19 version 1.27
+  * fixed problem with scatter functions in MS Visual Studio  
+  
+2016-12-21 version 1.26
+  * added constant4ui template
+  * fixed error for complexvec.h with clang  
+  * fixed error in vectormath_exp.h for MAX_VECTOR_SIZE < 512
+
+2016-11-25 version 1.25
+  * scatter functions
+  * new functions to_float for unsigned integer vectors
+  * instrset_detect function can detect AVX512VL, AVX512BW, AVX512DQ
+  * functions hasF16C and hasAVX512ER for detecting instruction set extensions
+  * fix bugs in horizontal_and and pow(0,0) for AVX512
+  * functions improved for AVX512 and AVX512VL: pow, approx_recipr,  
+      approx_rsqrt
+  * functions improved for AVX512DQ: 64 bit multiplication, to_double,
+      32 and 64 bit rotate_left, round_to_int64, truncate_to_int64
+  * functions improved for AVX512ER: approx_recipr, approx_rsqrt,
+      exponential functions
+
+2016-10-31 version 1.24
+  * fix bug in Vec8uq constructor in vectori512e.h
+
+2016-09-27 version 1.23
+  * temporary fix of a problem in Clang version 3.9 inserted in vectorf128.h
+
+2016-05-03 version 1.22
+  * added optional namespace
+  * fixed problem with decimal.h  
+
+2016-04-24 version 1.21
+  * fix problems with XOP option in gcc
+  * improved horizontal_and/or for sse2
+  * improved Vec2q and Vec4q constructor on Microsoft Visual Studio 2015
+  * removed warnings by gcc option -Wcast-qual  
+
+2015-12-04 version 1.20
+  * round functions: suppress precision exception under SSE4.1 and higher
+  * fix compiler problems with AVX512 multiplication in gcc version 5.1
+  * fix compiler problems with pow function in Microsoft Visual Studio 2015
+
+2015-11-14 version 1.19
+  * fix various problems with Clang compiler
+
+2015-09-25 version 1.18
+  * fix compiler error for Vec8s divide_by_i(Vec8s const & x) under Clang compiler
+  * fix error in Vec4d::size() in vectorf256e.h
+
+2015-07-31 version 1.17
+  * improved operator > for Vec4uq
+  * more special cases in blend4q
+  * nan_code functions made static inline
+  * template parameter BTYPE renamed to BVTYPE in mathematical functions to avoid clash
+      with macro named BTYPE in winnt.h
+  * fixed bug in Vec4db constructor
+
+2014-10-24 version 1.16
+  * workaround for problem in Clang compiler extended to version 3.09 because not 
+      fixed yet by Clang (vectorf128.h line 134)
+  * recognize problem with Apple version of Clang reporting wrong version number
+  * remove various minor problems with Clang
+  * function pow(vector, int) modified to strengthen type checking and avoid compiler warnings
+  * manual discusses dynamic allocation of arrays of vectors
+  * various minor changes
+
+2014-10-17 version 1.15
+  * added files ranvec1.h and ranvec1.cpp for random number generator
+  * constructors to make boolean vectors from their elements
+  * constructors and = operators to broadcast boolean scalar into boolean vectors
+  * various lookup functions improved
+  * operators &, |, ^, ~, etc. defined for various boolean vectors to avoid converson
+      to integer vectors
+  * nmul_add functions
+  * mul_add etc. moved to main header files
+  * explicit fused multiply-and-add used in math functions to improve performance 
+      on compilers that don't automatically insert FMA
+
+2014-07-24 version 1.14
+  * support for AVX-512f instruction set and 512-bit vectors:
+      Vec16i, Vec16ui, Vec8q, Vec8uq, Vec16f, Vec8d, and corresponding boolean vectors
+  * new define MAX_VECTOR_SIZE, valid values are 128, 256 and 512
+  * added hyperbolic functions sinh, cosh, tanh, asinh, acosh, atanh
+  * size() member function on all vector classes returns the number of elements
+  * functions for conversion between boolean vectors and integer bitfields
+  * extracting an element from a boolean vector now returns a bool, not an int
+  * improved precision in exp2 and exp10 functions
+  * various bug fixes
+
+2014-05-11 version 1.13
+  * pow function improved
+  * mul_add, mul_sub, mul_sub_x functions
+  * propagation of error codes through nan_code function
+  * "denormal" renamed to "subnormal" everywhere, in accordance with IEEE 754-2008 standard
+
+2014-04-20 version 1.12
+  * inline implementation of mathematical functions added (vectormath_exp.h vectormath_trig.h
+      vectormath_common.h)
+  * vectormath.h renamed to vectormath_lib.h because a new alternative is added
+  * gather functions with constant indexes
+  * function sign_combine
+  * function pow_const(vector, const int)
+  * function pow_ratio(vector, const int, const int)
+  * functions horizontal_find_first, horizontal_count
+  * function recipr_sqrt removed
+  * functions round_to_int64_limited, truncate_to_int64_limited, to_double_limited
+  * function cubic_root renamed to cbrt
+  * function atan(vector,vector) renamed to atan2
+  * function if_mul
+  * function Vec4i round_to_int(Vec2d)
+  * operator & (float vector, boolean vector)
+  * operator &= (int vector, int vector)
+  * removed constructor Vec128b(int) and Vec256b(int) to avoid implicit conversion
+  * removed signalling nan function
+  * minor improvements in various blend and lookup functions
+
+2014-03-01 version 1.11
+  * fixed missing unsigned operators >>= in vectori256.h
+
+2013-10-04 version 1.10
+  * clear distinction between boolean vectors and integer vectors for the sake of 
+      compatibility with mask registers in forthcoming AVX512 instruction set
+  * added function if_add
+  * tentative support for clang version 3.3 with workaround for bugs
+  * remove ambiguity for builtin m128i operator == in clang compiler. 
+  * problems in clang compiler, bug reports filed at clang
+      (http://llvm.org/bugs/show_bug.cgi?id=17164, 17312)
+  * instrset.h fixes problem with macros named min and max in MS windows.h
+  * workaround problem in MS Visual Studio 11.0. Bug report 735861 and 804274
+  * minor bug fixes
+
+2013-03-31 version 1.03 beta
+  * bug fix for Vec2d cos (Vec2d const & x), VECTORMATH = 1
+
+2012-08-01 version 1.02 beta
+  * added file vector3d.h for 3-dimensional vectors
+  * added file complexvec.h for complex numbers and complex vectors
+  * added file quaternion.h for quaternions
+  * added function change_sign for floating point vectors
+  * added operators +, -, *, / between floating point vectors and scalars to remove 
+      overloading ambiguity
+
+2012-07-08 version 1.01 beta
+  * added file decimal.h with Number <-> string conversion functions: 
+      bin2bcd, bin2ascii, bin2hex_ascii, ascii2bin
+  * added andnot function for boolean vectors
+  * added functions shift_bytes_up and shift_bytes_down
+  * added operators for unsigned integer vector classes: >>=, &, &&, |, ||, ^, ~
+  * inteldispatchpatch.cpp removed. Use asmlib instead (www.agner.org/optimize/#asmlib)
+  * prefix ++ and -- operators now return a reference, postfix operators return a value
+  * various improvements in permute and blend functions
+  * minor improvement in abs function
+  * added version number to VECTORCLASS_H
+
+2012-05-30 version 1.00 beta
+  * first public release