don't check for HAVE_UNISTD_H

diff --git a/Makefile.maint b/Makefile.maint
index ff0d1cff8e4809953e8c4910da35989d9573f7eb..d0aad9b4fa7292d55666caeb636b350556fb4856 100644 (file)
--- a/Makefile.maint
+++ b/Makefile.maint
@@ -71,7 +71,6 @@ syntax-check-rules = \
   sc_cast_of_argument_to_free \
   sc_cast_of_x_alloc_return_value \
   sc_cast_of_alloca_return_value \
-  sc_changelog \
   sc_dd_max_sym_length \
   sc_error_exit_success \
   sc_file_system \
@@ -151,9 +150,9 @@ sc_file_system:
 
 sc_obsolete_symbols:
        @( $(CVS_LIST) ) > /dev/null 2>&1 || : &&                       \
-         grep -E '\<(HAVE_(FCNTL|UNISTD)_H)\>'                         \
+         grep -E '\<(HAVE_FCNTL_H)\>'                                  \
             $$($(CVS_LIST) | grep -vEf .x-$@ ) &&                      \
-         { echo '$(ME): do not use HAVE_FCNTL_H or HAVE_UNISTD_H'      \
+         { echo '$(ME): do not use HAVE_FCNTL_H'                       \
                1>&2; exit 1; } || :
 
 # FIXME: warn about definitions of EXIT_FAILURE, EXIT_SUCCESS, STREQ
@@ -168,7 +167,8 @@ sc_changelog:
 # with the strings from the two affected variables.
 dd_c = $(srcdir)/src/dd.c
 sc_dd_max_sym_length:
-       @len=$$( (sed -n '/conversions\[\] =$$/,/^};/p' $(dd_c);\
+       @test -f $(dd_c) || exit 0;                             \
+       len=$$( (sed -n '/conversions\[\] =$$/,/^};/p' $(dd_c); \
                 sed -n '/flags\[\] =$$/,/^};/p' $(dd_c) )      \
                |sed -n '/"/s/^[^"]*"\([^"]*\)".*/\1/p'         \
               | wc --max-line-length);                         \