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-rw-r--r--lib/portability.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/portability.h b/lib/portability.h
index 1d540acf..b5fc0aca 100644
--- a/lib/portability.h
+++ b/lib/portability.h
@@ -60,6 +60,11 @@
// http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/unistd.h.html
char *crypt(const char *key, const char *salt);
+// According to posix, #include header, get a function definition. But glibc...
+// http://pubs.opengroup.org/onlinepubs/9699919799/functions/wcwidth.html
+#include <wchar.h>
+int wcwidth(wchar_t wc);
+
// see http://pubs.opengroup.org/onlinepubs/9699919799/functions/strptime.html
#include <time.h>
char *strptime(const char *buf, const char *format, struct tm *tm);