I made a few changes to some of the sources, not realizing my editor was using tabs for indentation which caused the build to complain. I wasn't sure what the error was trying to tell me at first; here's a patch that makes the message clearer (to me at least). Dave diff --git a/Makefile.maint b/Makefile.maint index 10d481b..3b7594d 100644 --- a/Makefile.maint +++ b/Makefile.maint @@ -310,7 +310,7 @@ sc_TAB_in_indentation: $$($(VC_LIST_EXCEPT) \ | grep -E '\.[ch](\.in)?$$' \ | grep -v '^gnulib/') && \ - { echo '$(ME): found TAB(s) use for indentation; use spaces' \ + { echo '$(ME): found TAB(s) used for indentation in C sources; use spaces' \ 1>&2; exit 1; } || : ctype_re = isalnum|isalpha|isascii|isblank|iscntrl|isdigit|isgraph|islower\