README: Forgot PCRE

diff --git a/README b/README
index 727236c7837bf678ed88976b13f788c3e3b68f22..99f58fd6ff2db046967317c2605dbd3693150a19 100644 (file)
--- a/README
+++ b/README
@@ -15,9 +15,8 @@ by arbitrary whitespace, regex matching, formatting of tables and so on.
 See the man page for full description.
 
 The program has been tested on Linux, but it should run on an arbitrary POSIX
-system with a C99 compiler. (It is possible that some GNUisms remain in the code,
-but they should be easy to fix if needed.) Building of documentation requires
-AsciiDoc (any reasonably recent version should work).
+system with a C99 compiler and the PCRE library. Building of documentation
+requires AsciiDoc (any reasonably recent version should work).
 
 Use "make" to build and "make tests" to run the test suite.