Always compile pin.c

@@ -6,13 +6,13 @@ SUBDIRS = posix
 INCLUDES = -I${top_srcdir}/include
 libmailutils_la_SOURCES = basename.c daemon.c getopt.c getopt1.c md5.c \
                          mu_dbm.c getline.c xstrdup.c xmalloc.c argcv.c \
-                         mu_argp.c
+                         mu_argp.c pin.c
 
 EXTRA_DIST = alloca.c fnmatch.c fgetpwent.c getpass.c malloc.c obstack.c \
   realloc.c setenv.c snprintf.c strchrnul.c strndup.c strnlen.c strncasecmp.c \
   strcasecmp.c strtok_r.c  strsignal.c xstrtol.c  vasprintf.c \
   argp-ba.c argp-eexst.c argp-fmtstream.c argp-fs-xinl.c \
-  argp-help.c argp-parse.c argp-pv.c argp-pvh.c argp-xinl.c pin.c
+  argp-help.c argp-parse.c argp-pv.c argp-pvh.c argp-xinl.c 
 
 noinst_HEADERS = argcv.h error.h fnmatch.h getline.h getopt.h md5.h mu_dbm.h\
  regex.h snprintf.h xalloc.h xstrtol.h obstack.h mu_argp.h \