--- /dev/null
+;;;; c-api.test --- complementary test suite for the c-api -*- scheme -*-
+;;;; MDJ 990915 <djurfeldt@nada.kth.se>
+;;;;
+;;;; Copyright (C) 1999, 2006 Free Software Foundation, Inc.
+;;;;
+;;;; This program is free software; you can redistribute it and/or modify
+;;;; it under the terms of the GNU General Public License as published by
+;;;; the Free Software Foundation; either version 2, or (at your option)
+;;;; any later version.
+;;;;
+;;;; This program is distributed in the hope that it will be useful,
+;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+;;;; GNU General Public License for more details.
+;;;;
+;;;; You should have received a copy of the GNU General Public License
+;;;; along with this software; see the file COPYING. If not, write to
+;;;; the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+;;;; Boston, MA 02110-1301 USA
+
+(define srcdir (cdr (assq 'srcdir %guile-build-info)))
+
+(define (egrep string filename)
+ (zero? (system (string-append "egrep '" string "' " filename " >/dev/null"))))
+
+(define (seek-offset-test dirname)
+ (let ((dir (opendir dirname)))
+ (do ((filename (readdir dir) (readdir dir)))
+ ((eof-object? filename))
+ (if (and
+ (eqv? (string-ref filename (- (string-length filename) 1)) #\c)
+ (eqv? (string-ref filename (- (string-length filename) 2)) #\.))
+ (let ((file (string-append dirname "/" filename)))
+ (if (and (file-exists? file)
+ (egrep "SEEK_(SET|CUR|END)" file)
+ (not (egrep "unistd.h" file)))
+ (fail file)))))))
+
+;;; A rough conservative test to check that all source files
+;;; which use SEEK_SET, SEEK_CUR, and SEEK_END include unistd.h.
+;;;
+;;; If this test start to trigger without reason, we just modify it
+;;; to be more precise.
+(with-test-prefix "SEEK_XXX => #include <unistd.h>"
+ (if (file-exists? srcdir)
+ (seek-offset-test srcdir)))