adding includes causing Linux build errors

setup.py

@@ -30,7 +30,7 @@
 
 setup(
     name='xrayphysics',
-    version='0.2', 
+    version='1.0', 
     author='Kyle Champley', 
     author_email='[email protected]', 
     description='x-ray cross section tables, x-ray tube source simulation, beam hardening correction, and dual energy decompositon', 

src/dual_energy_decomposition.cpp

@@ -1,4 +1,5 @@
 #include "dual_energy_decomposition.h"
+#include <math.h>
 
 #ifdef USE_OPENMP
 #include <omp.h>

src/xrayphysics.cpp

@@ -1,6 +1,7 @@
 #include "xrayphysics.h"
 #include "dual_energy_decomposition.h"
 #include <string>
+#include <math.h>
 
 #ifdef USE_OPENMP
 #include <omp.h>

src/xsec.cpp

@@ -1,6 +1,8 @@
 
 #include "xsec.h"
 #include "xsec_raw.h"
+#include <cstring>
+#include <math.h>
 
 const float atomicMass[101] = {0.0, 1.008000e+00, 4.002600e+00, 6.939000e+00, 9.012200e+00, 1.081100e+01, 1.201100e+01, 1.400700e+01, 1.599900e+01, 1.899800e+01, 2.017900e+01,
 														  2.299000e+01, 2.431200e+01, 2.698200e+01, 2.808600e+01, 3.097400e+01, 3.206400e+01, 3.545300e+01, 3.994800e+01, 3.910200e+01, 4.008000e+01,

src/xsource.cpp

@@ -1,4 +1,5 @@
 #include "xsource.h"
+#include <math.h>
 
 #ifndef PI
 	#define PI 3.1415926535897932385