Fix compilation on OSX.

AdaptiveSampler.h

@@ -11,6 +11,7 @@
 // under-represented).
 
 #include <assert.h>
+#include <errno.h>
 #include <inttypes.h>
 #include <stdio.h>
 #include <stdlib.h>

LogHistogramSampler.h

@@ -2,9 +2,10 @@
 #ifndef LOGHISTOGRAMSAMPLER_H
 #define LOGHISTOGRAMSAMPLER_H
 
-#include <inttypes.h>
-
 #include <assert.h>
+#include <inttypes.h>
+#include <math.h>
+
 #include <vector>
 
 #include "Operation.h"
@@ -53,6 +54,7 @@ public:
   double minimum() {
     for (size_t i = 0; i < bins.size(); i++)
       if (bins[i] > 0) return pow(_POW, (double) i + 0.5);
+    DIE("Not implemented");
   }
 
   double get_nth(double nth) {

SConstruct

@@ -1,5 +1,6 @@
 #!/usr/bin/python
 import os
+import sys
 
 env = Environment(ENV = os.environ)
 
@@ -8,6 +9,9 @@ env['HAVE_POSIX_BARRIER'] = True
 env.Append(CPPPATH = ['/usr/local/include', '/opt/local/include'])
 env.Append(LIBPATH = ['/opt/local/lib'])
 env.Append(CCFLAGS = '-std=c++0x -D_GNU_SOURCE') # -D__STDC_FORMAT_MACROS')
+if sys.platform == 'darwin':
+    env['CC']  = 'clang'
+    env['CXX'] = 'clang++'
 
 conf = env.Configure(config_h = "config.h")
 conf.Define("__STDC_FORMAT_MACROS")

mutilate.cc

@@ -511,7 +511,11 @@ void go(const vector<string>& servers, options_t& options,
   if (options.threads > 1) {
     pthread_t pt[options.threads];
     struct thread_data td[options.threads];
+#ifdef __clang__
+    vector<string>* ts = static_cast<vector<string>*>(alloca(sizeof(vector<string>) * options.threads));
+#else
     vector<string> ts[options.threads];
+#endif
 
     for (int t = 0; t < options.threads; t++) {
       td[t].options = &options;