changed amakrid to whoami (was not working in fedora)

git-svn-id: file:///home/svn/mapi/trunk@876 8d5bb341-7cf1-0310-8cf6-ba355fef3186

src/Makefile.am

@@ -59,7 +59,7 @@ dist-hook:
 
 # if installing as root, create a mapi user group
 install-exec-hook:
-	@if test ${USER} = root; then \
+	@if test `whoami` = root; then \
 		if $(GROUPADD) -f ${MAPI_GROUP}; then\
 			echo "Created user group '${MAPI_GROUP}'"; \
 		fi \