[newlib-cygwin] strptime.c(strptime_l): add %q GNU quarter

[Corinna Vinschen]

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=d6a26e542da06d0ded2b8eefbd019fc93fdec019

commit d6a26e542da06d0ded2b8eefbd019fc93fdec019
Author: Brian Inglis <Brian.Inglis@SystematicSW.ab.ca>
Date:   Fri Oct 21 23:15:18 2022 -0600

    strptime.c(strptime_l): add %q GNU quarter

Diff:
---
 newlib/libc/time/strptime.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/newlib/libc/time/strptime.c b/newlib/libc/time/strptime.c
index 12b2ef469..6220ff73a 100644
--- a/newlib/libc/time/strptime.c
+++ b/newlib/libc/time/strptime.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1999 Kungliga Tekniska Högskolan
+ * Copyright (c) 1999 Kungliga Tekniska Högskolan
  * (Royal Institute of Technology, Stockholm, Sweden). 
  * All rights reserved. 
  *
@@ -298,6 +298,14 @@ strptime_l (const char *buf, const char *format, struct tm *timeptr,
 		} else
 		    timeptr->tm_hour += 12;
 		break;
+	    case 'q' :		/* quarter year - GNU extension */
+		ret = strtol_l (buf, &s, 10, locale);
+		if (s == buf)
+		    return NULL;
+		timeptr->tm_mon = (ret - 1)*3;
+		buf = s;
+		ymd |= SET_MON;
+		break;
 	    case 'r' :		/* %I:%M:%S %p */
 		s = strptime_l (buf, _ctloc (ampm_fmt), timeptr, locale);
 		if (s == NULL)