add exported symbols test

git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@14428 ec53bebd-3082-4978-b11e-865c3cabbd6b

cf/check-symbols.sh

@@ -0,0 +1,31 @@
+# check library exported symbols
+# $Id$
+
+esym=
+symbols=
+
+while test $# != 0 ;do 
+  case "$1" in
+    -lib) lib="$2" ; shift;;
+    -com_err)
+       esym="${esym} com_right\$ free_error_table\$ initialize_error_table_r\$"
+       esym="${esym} com_err error_message\$ error_table_name\$"
+       esym="${esym} init_error_table\$ add_to_error_table\$"
+       esym="${esym} reset_com_err_hook\$ set_com_err_hook\$ _et_list\$"
+       esym="${esym} initialize_[A-Za-z0-9]*_error_table" ;;
+    -version)
+       esym="${esym} print_version\$" ;;
+    -*) echo "unknown option $1" ; exit 1 ;;
+    *) break ;;
+  esac
+  shift
+done
+
+for a in "$@" $esym; do
+    symbols="\$3 !~ /^${a}/ ${symbols:+&&} ${symbols}"
+done
+
+(nm .libs/lib${lib}.a || nm .libs/lib${lib}.so*)  |
+awk "BEGIN { stat = 0 }
+NF == 3 && \$2 ~ /[A-Z]/ && \$2 !~ /U/ && $symbols { printf \"%s should not be exported\\n\", \$3; ++stat } END { exit stat }"
+