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-rw-r--r--src/include/config.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/include/config.h b/src/include/config.h
index 255f3b7e65d..08ab5861f7b 100644
--- a/src/include/config.h
+++ b/src/include/config.h
@@ -140,6 +140,9 @@
/* does anybody use this? */
#if defined(next)
+# if defined(__STRICT_ANSI__)
+# define isascii(c) ((unsigned)(c)<=0177)
+# endif
# define USE_LIMITS_H
# define JMP_BUF
# define NEED_SIG_JMP