Add syntax check rule to look for non-reentrant POSIX apis

Makefile.nonreentrant

@@ -0,0 +1,85 @@
+
+#
+# Generated by running the following on Fedora 9:
+#
+#  nm -D --defined-only /lib/libc.so.6  \
+#      | grep '_r$' \
+#      | awk '{print $3}' \
+#      | grep -v __ \
+#      | grep -v qsort \ # Red herring since we don't need to pass extra args to qsort comparator
+#      | grep -v readdir \ # This is safe as long as each DIR * instance is only used by one thread
+#      | sort \
+#      | uniq \
+#      | sed -e 's/_r//'
+#
+
+NON_REENTRANT =
+NON_REENTRANT += asctime
+NON_REENTRANT += ctime
+NON_REENTRANT += drand48
+NON_REENTRANT += ecvt
+NON_REENTRANT += erand48
+NON_REENTRANT += ether_aton
+NON_REENTRANT += ether_ntoa
+NON_REENTRANT += fcvt
+NON_REENTRANT += fgetgrent
+NON_REENTRANT += fgetpwent
+NON_REENTRANT += fgetspent
+NON_REENTRANT += getaliasbyname
+NON_REENTRANT += getaliasent
+NON_REENTRANT += getdate
+NON_REENTRANT += getgrent
+NON_REENTRANT += getgrgid
+NON_REENTRANT += getgrnam
+NON_REENTRANT += gethostbyaddr
+NON_REENTRANT += gethostbyname2
+NON_REENTRANT += gethostbyname
+NON_REENTRANT += gethostent
+NON_REENTRANT += getlogin
+NON_REENTRANT += getmntent
+NON_REENTRANT += getnetbyaddr
+NON_REENTRANT += getnetbyname
+NON_REENTRANT += getnetent
+NON_REENTRANT += getnetgrent
+NON_REENTRANT += getprotobyname
+NON_REENTRANT += getprotobynumber
+NON_REENTRANT += getprotoent
+NON_REENTRANT += getpwent
+NON_REENTRANT += getpwnam
+NON_REENTRANT += getpwuid
+NON_REENTRANT += getrpcbyname
+NON_REENTRANT += getrpcbynumber
+NON_REENTRANT += getrpcent
+NON_REENTRANT += getservbyname
+NON_REENTRANT += getservbyport
+NON_REENTRANT += getservent
+NON_REENTRANT += getspent
+NON_REENTRANT += getspnam
+NON_REENTRANT += getutent
+NON_REENTRANT += getutid
+NON_REENTRANT += getutline
+NON_REENTRANT += gmtime
+NON_REENTRANT += hcreate
+NON_REENTRANT += hdestroy
+NON_REENTRANT += hsearch
+NON_REENTRANT += initstate
+NON_REENTRANT += jrand48
+NON_REENTRANT += lcong48
+NON_REENTRANT += localtime
+NON_REENTRANT += lrand48
+NON_REENTRANT += mrand48
+NON_REENTRANT += nrand48
+NON_REENTRANT += ptsname
+NON_REENTRANT += qecvt
+NON_REENTRANT += qfcvt
+NON_REENTRANT += random
+NON_REENTRANT += rand
+NON_REENTRANT += seed48
+NON_REENTRANT += setstate
+NON_REENTRANT += sgetspent
+NON_REENTRANT += srand48
+NON_REENTRANT += srandom
+NON_REENTRANT += strerror
+NON_REENTRANT += strtok
+NON_REENTRANT += tmpnam
+NON_REENTRANT += ttyname