diff --git a/src/Makefile b/src/Makefile
index 96e01d7565..f04a1600fa 100755
--- a/src/Makefile
+++ b/src/Makefile
@@ -153,7 +153,7 @@ no-%:
 	  echo "Package $(@:no-%=%) does not exist"; \
 	else \
 	  echo "Uninstalling package $(@:no-%=%), ignore errors"; \
-	  cd $(NODIR); csh -f Install.csh 0; cd ..; $(MAKE) clean-all; \
+	  cd $(NODIR); csh -f Install.csh 0; cd ..; \
         fi;
 
 # status = list differences between src and package files
diff --git a/src/Makefile.package b/src/Makefile.package
index e8b9bb6bd2..3623c9f6ba 100644
--- a/src/Makefile.package
+++ b/src/Makefile.package
@@ -1,9 +1,9 @@
 # Settings for libraries used by specific LAMMPS packages
 # this file is auto-edited when those packages are included/excluded
 
-PKG_INC =  -I../../lib/atc -I../../lib/reax -I../../lib/poems -I../../lib/meam 
-PKG_PATH = -L../../lib/atc -L../../lib/reax -L../../lib/poems -L../../lib/meam -L../../lib/gpu 
-PKG_LIB =  -latc -lreax -lpoems -lmeam -lgpu 
+PKG_INC =  -I../../lib/poems -I../../lib/atc -I../../lib/reax -I../../lib/meam 
+PKG_PATH = -L../../lib/poems -L../../lib/atc -L../../lib/reax -L../../lib/meam -L../../lib/gpu 
+PKG_LIB =  -lpoems -latc -lreax -lmeam -lgpu 
 
 PKG_SYSPATH = $(user-atc_SYSPATH) $(reax_SYSPATH) $(meam_SYSPATH) $(gpu_SYSPATH) 
 PKG_SYSLIB =  $(user-atc_SYSLIB) $(reax_SYSLIB) $(meam_SYSLIB) $(gpu_SYSLIB) 
diff --git a/src/Package.csh b/src/Package.csh
index 0ab65a7752..1ba6e5a41d 100644
--- a/src/Package.csh
+++ b/src/Package.csh
@@ -1,26 +1,18 @@
 # Package.csh = package management, called from Makefile
 # Syntax: csh Package.csh DIR status/update/overwrite
 
+# package installed if any *.cpp or *.h file is in src
+
 # if last arg = "status":
 #   print installation status of each package
-#   if package not installed (0-length src/style file), do nothing besides
-#     check that no package files are in src (except style file)
-#   flag src files that do not exist or are 0-length
-#   list package files that are different than src version
+#   flag package files that do not exist in src
+#   flag package files that are different than src version
 
 # if last arg = "update":
-#   if 0-length src/style file doesn't exist, create src/style file
-#     via touch command, since LAMMPS needs it to do a build,
-#     but don't copy any more files since don't want to install package
-#   if 0-length src/style file already exists, do nothing
-#   if non-0-length src/style file exists,
-#     copy any package file into src if file doesn't exist or is different
+#   if package installed, copy its files that are different from package to src
 
 # if last arg = "overwrite":
-#   if package not installed (0-length src/style file), do nothing besides
-#     check that no package files are in src (except style file)
-#   flag src files that do not exist or are 0-length
-#   overwrite package files that are different than src version
+#   if package installed, copy its files that are different from src to package
 
 # use diff to compare files
 #   tried using cmp, but it doesn't satisfy if test if one file is
@@ -30,71 +22,61 @@ set glob
 set style = `echo $1 | sed 'y/-ABCDEFGHIJKLMNOPQRSTUVWXYZ/_abcdefghijklmnopqrstuvwxyz/'`
 cd $1
 
+set installed = 0
+foreach file (*.cpp *.h)
+  if (-e ../$file) then
+    set installed = 1
+  endif
+end
+
 if ($2 == "status") then
 
-  if (-z ../style_$style.h) then
-    echo "Installed  NO: package $1"
-    foreach file (*.cpp *.h)
-      if (-e ../$file && $file != "style_$style.h") then
-        echo "  src/$file exists but should not"
-      endif
-    end
-  else
+  if ($installed) then
     echo "Installed YES: package $1"
     foreach file (*.cpp *.h)
       if (! -e ../$file) then
         echo "  src/$file does not exist"
-      else if (-z ../$file) then
-        echo "  src/$file is empty file"
       else if (`diff --brief $file ../$file` != "") then
         echo "  src/$file and $1/$file are different"
       endif
     end
+  else
+    echo "Installed  NO: package $1"
   endif
 
 else if ($2 == "update") then
 
-  echo "Updating src from $1 package"
+  echo "Updating src files from $1 package files"
 
-  if (! -e ../style_$style.h) then
-    echo "  $1 package is not installed, but creating dummy style file"
-    touch ../style_$style.h
-  else if (-z ../style_$style.h) then
-    echo "  $1 package is not installed, no action"
-  else
+  if ($installed) then
     foreach file (*.cpp *.h)
       if (! -e ../$file) then
-        echo "  updating src/$file"
+        echo "  creating src/$file"
         cp $file ..
       else if (`diff --brief $file ../$file` != "") then
         echo "  updating src/$file"
         cp $file ..
       endif
     end
+  else
+    echo "  $1 package is not installed, no action"
   endif
 
 else if ($2 == "overwrite") then
 
-  echo "Overwriting $1 package with src"
+  echo "Overwriting $1 package files with src files"
 
-  if (-z ../style_$style.h) then
-    echo "  $1 package is not installed, no action"
-    foreach file (*.cpp *.h)
-      if (-e ../$file && $file != "style_$style.h") then
-        echo "  src/$file exists but should not"
-      endif
-    end
-  else
+  if ($installed) then
     foreach file (*.cpp *.h)
       if (! -e ../$file) then
         echo "  src/$file does not exist"
-      else if (-z ../$file) then
-        echo "  src/$file is empty file"
       else if (`diff --brief $file ../$file` != "") then
         echo "  overwriting $1/$file"
         cp ../$file .
       endif
     end
+  else
+    echo "  $1 package is not installed, no action"
   endif
 
 endif