scc

commit c6e47d620ccb3d0882fcdb938ec8e8d3c5c817b4
parent 5f241cec09bb5c207955933e41ac692f2de2c44b
Author: Roberto E. Vargas Caballero <k0ga@shike2.net>
Date:   Fri, 24 Apr 2026 23:59:39 +0200

libc/time: Remove dst variable in mktime()

This avoids an additional call to _isdst() when it it is not
required and it also avoids problems in case of _isdst() has
to call mktime(), because the current code would produce an
infinite call loop.

Diffstat:
M
src/libc/time/mktime.c
 | 
6
++----

1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/src/libc/time/mktime.c b/src/libc/time/mktime.c
@@ -104,7 +104,7 @@ mktime(struct tm *ptm)
 	time_t t;
 	long off;
 	char *name;
-	int i, year, dst;
+	int i, year;
 	struct tm tm;
 
 	tm = *ptm;
@@ -131,9 +131,7 @@ mktime(struct tm *ptm)
 	t += (tm.tm_mday-1) * SECDAY;
 
 	_tzset();
-	dst = _isdst(&tm);
-
-	if (tm.tm_isdst == 0 || tm.tm_isdst < 0 && !dst)
+	if (tm.tm_isdst == 0 || tm.tm_isdst < 0 && !_isdst(&tm))
 		off = _timezone;
 	else
 		off = _dstzone;