diff --git a/src/USER-MEAMC/Install.sh b/src/USER-MEAMC/Install.sh
deleted file mode 100644
index 2b4098a473..0000000000
--- a/src/USER-MEAMC/Install.sh
+++ /dev/null
@@ -1,47 +0,0 @@
-# Install/unInstall package files in LAMMPS
-# mode = 0/1/2 for uninstall/install/update
-
-# this is default Install.sh for all packages
-# if package has an auxiliary library or a file with a dependency,
-# then package dir has its own customized Install.sh
-
-mode=$1
-
-# enforce using portable C locale
-LC_ALL=C
-export LC_ALL
-
-# arg1 = file, arg2 = file it depends on
-
-action () {
-  if (test $mode = 0) then
-    rm -f ../$1
-  elif (! cmp -s $1 ../$1) then
-    if (test -z "$2" || test -e ../$2) then
-      cp $1 ..
-      if (test $mode = 2) then
-        echo "  updating src/$1"
-      fi
-    fi
-  elif (test -n "$2") then
-    if (test ! -e ../$2) then
-      rm -f ../$1
-    fi
-  fi
-}
-
-# all package files with no dependencies
-
-for file in *.cpp *.h; do
-  test -f ${file} && action $file
-done
-
-
-# additional files
-
-for file in meam_*.c; do
-  test -f ${file} && action ${file}
-done
-
-action fm_exp.c
-action meam.h
diff --git a/src/USER-MEAMC/fm_exp.c b/src/USER-MEAMC/fm_exp.cpp
similarity index 99%
rename from src/USER-MEAMC/fm_exp.c
rename to src/USER-MEAMC/fm_exp.cpp
index 00b957b27c..253af868f7 100644
--- a/src/USER-MEAMC/fm_exp.c
+++ b/src/USER-MEAMC/fm_exp.cpp
@@ -1,3 +1,4 @@
+extern "C" {
 /*
    Copyright (c) 2012,2013   Axel Kohlmeyer <akohlmey@gmail.com>
    All rights reserved.
@@ -131,3 +132,4 @@ double fm_exp(double x)
  * indent-tabs-mode: nil
  * End:
  */
+}
diff --git a/src/USER-MEAMC/meam.h b/src/USER-MEAMC/meam.h
index ab2c756dc3..c8e46903c5 100644
--- a/src/USER-MEAMC/meam.h
+++ b/src/USER-MEAMC/meam.h
@@ -91,7 +91,7 @@ typedef struct {
       double dr,rdrar;
 } meam_data_t;
 
-meam_data_t meam_data;
+extern meam_data_t meam_data;
 
 // Functions we need for compat
 #ifndef max
diff --git a/src/USER-MEAMC/meam_cleanup.c b/src/USER-MEAMC/meam_cleanup.cpp
similarity index 95%
rename from src/USER-MEAMC/meam_cleanup.c
rename to src/USER-MEAMC/meam_cleanup.cpp
index 5c81fc3b49..1beedc9fa0 100644
--- a/src/USER-MEAMC/meam_cleanup.c
+++ b/src/USER-MEAMC/meam_cleanup.cpp
@@ -1,3 +1,4 @@
+extern "C" {
 #include "meam.h"
 
 void meam_cleanup_(void) {
@@ -12,3 +13,4 @@ void meam_cleanup_(void) {
     deallocate(meam_data.phir);
 
 }
+}
\ No newline at end of file
diff --git a/src/USER-MEAMC/meam_data.c b/src/USER-MEAMC/meam_data.c
deleted file mode 100644
index 54ddf81b64..0000000000
--- a/src/USER-MEAMC/meam_data.c
+++ /dev/null
@@ -1,3 +0,0 @@
-#include "meam.h"
-
-meam_data_t meam_data = {};
\ No newline at end of file
diff --git a/src/USER-MEAMC/meam_data.cpp b/src/USER-MEAMC/meam_data.cpp
new file mode 100644
index 0000000000..c5fd152147
--- /dev/null
+++ b/src/USER-MEAMC/meam_data.cpp
@@ -0,0 +1,5 @@
+extern "C" {
+#include "meam.h"
+
+meam_data_t meam_data = {};
+}
\ No newline at end of file
diff --git a/src/USER-MEAMC/meam_dens_final.c b/src/USER-MEAMC/meam_dens_final.cpp
similarity index 99%
rename from src/USER-MEAMC/meam_dens_final.c
rename to src/USER-MEAMC/meam_dens_final.cpp
index 1e553866e4..bdcff4a7f6 100644
--- a/src/USER-MEAMC/meam_dens_final.c
+++ b/src/USER-MEAMC/meam_dens_final.cpp
@@ -1,3 +1,4 @@
+extern "C"{
 #include "meam.h"
 #include <math.h>
 
@@ -260,3 +261,5 @@
       }
 
 //ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
+
+}
\ No newline at end of file
diff --git a/src/USER-MEAMC/meam_dens_init.c b/src/USER-MEAMC/meam_dens_init.cpp
similarity index 99%
rename from src/USER-MEAMC/meam_dens_init.c
rename to src/USER-MEAMC/meam_dens_init.cpp
index 8c1d84f6d4..8a17f4e7e5 100644
--- a/src/USER-MEAMC/meam_dens_init.c
+++ b/src/USER-MEAMC/meam_dens_init.cpp
@@ -1,3 +1,4 @@
+extern "C" {
 #include "meam.h"
 #include <math.h>
 
@@ -500,5 +501,4 @@
 //ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
 
 
-
-
+}
\ No newline at end of file
diff --git a/src/USER-MEAMC/meam_force.c b/src/USER-MEAMC/meam_force.cpp
similarity index 99%
rename from src/USER-MEAMC/meam_force.c
rename to src/USER-MEAMC/meam_force.cpp
index d27d8ca7eb..b10a766716 100644
--- a/src/USER-MEAMC/meam_force.c
+++ b/src/USER-MEAMC/meam_force.cpp
@@ -1,3 +1,4 @@
+extern "C"{
 #include "meam.h"
 #include <math.h>
 
@@ -549,3 +550,5 @@ void dsij(int i,int j,int k,int jn,int nmax,int numneigh,double rij2,double *dsi
       }
 
       }
+
+}
\ No newline at end of file
diff --git a/src/USER-MEAMC/meam_setup_done.c b/src/USER-MEAMC/meam_setup_done.cpp
similarity index 99%
rename from src/USER-MEAMC/meam_setup_done.c
rename to src/USER-MEAMC/meam_setup_done.cpp
index e777025067..0d445f84bc 100644
--- a/src/USER-MEAMC/meam_setup_done.c
+++ b/src/USER-MEAMC/meam_setup_done.cpp
@@ -1,3 +1,4 @@
+extern "C" {
 #include "meam.h"
 #include <math.h>
 
@@ -943,3 +944,6 @@ void G_gam(double Gamma,int ibar,double gsmooth_factor, double *G, int *errorfla
 
       return result;
       }
+
+
+}
diff --git a/src/USER-MEAMC/meam_setup_global.c b/src/USER-MEAMC/meam_setup_global.cpp
similarity index 99%
rename from src/USER-MEAMC/meam_setup_global.c
rename to src/USER-MEAMC/meam_setup_global.cpp
index c8c4ef8468..5f6dfcb317 100644
--- a/src/USER-MEAMC/meam_setup_global.c
+++ b/src/USER-MEAMC/meam_setup_global.cpp
@@ -1,3 +1,4 @@
+extern "C" {
 #include "meam.h"
 #include <math.h>
 
@@ -97,3 +98,4 @@
       }
 
 
+}
\ No newline at end of file
diff --git a/src/USER-MEAMC/meam_setup_param.c b/src/USER-MEAMC/meam_setup_param.cpp
similarity index 98%
rename from src/USER-MEAMC/meam_setup_param.c
rename to src/USER-MEAMC/meam_setup_param.cpp
index 2c49481a28..ff89eda96a 100644
--- a/src/USER-MEAMC/meam_setup_param.c
+++ b/src/USER-MEAMC/meam_setup_param.cpp
@@ -1,3 +1,4 @@
+extern "C" {
 #include "meam.h"
 
 //
@@ -58,7 +59,7 @@
       void meam_setup_param_(int *which_p, double *value_p, int *nindex_p, int *index /*index(3)*/, int *errorflag)
       {
         //: index[0..2]
-        int i1, i2;
+        int i1, i2, val;
         *errorflag = 0;
         int which = *which_p;
         double value = *value_p;
@@ -97,7 +98,7 @@
         case 4:
           meam_checkindex(2,maxelt,nindex,index,errorflag);
           if (*errorflag!=0) return;
-          int val = (int)value;
+          val = (int)value;
 
           if (val==0)
             meam_data.lattce_meam[index[0]][index[1]] = FCC;
@@ -221,3 +222,5 @@
           *errorflag = 1;
       }
     }
+
+}
\ No newline at end of file