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spf=pass (aspmx1.migadu.com: domain of "bug-guix-bounces+larch=yhetil.org@gnu.org" designates 209.51.188.17 as permitted sender) smtp.mailfrom="bug-guix-bounces+larch=yhetil.org@gnu.org" X-Migadu-Spam-Score: 6.46 Authentication-Results: aspmx1.migadu.com; dkim=fail ("headers rsa verify failed") header.d=tugraz.at header.s=mailrelay header.b=W0QyJIZu; dmarc=fail reason="SPF not aligned (relaxed)" header.from=tugraz.at (policy=none); spf=pass (aspmx1.migadu.com: domain of "bug-guix-bounces+larch=yhetil.org@gnu.org" designates 209.51.188.17 as permitted sender) smtp.mailfrom="bug-guix-bounces+larch=yhetil.org@gnu.org" X-Migadu-Queue-Id: BE78A1AB9 X-Spam-Score: 6.46 X-Migadu-Scanner: scn0.migadu.com X-TUID: vZaYWhc+klz0 Am Donnerstag, dem 20.10.2022 um 11:29 +0200 schrieb Ludovic Court=C3=A8s: > Logging as performed by =E2=80=98%service-file-logger=E2=80=99 is quite G= C-intensive > (but shouldn=E2=80=99t be leaky!); this bit: >=20 > =C2=A0=C2=A0=C2=A0=C2=A0 (let ((prefix (strftime default-logfile-date-for= mat > =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0 (localtime (current-time))))) > =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 (format output "~a~a~%" prefix line) > =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 (loop)) (let ((prefix (strftime default-logfile-date-format (localtime (current-time))))) (format output "~a~a~%" prefix line) (loop)) Would it make a difference if you instead wrote (let ((prefix (strftime default-logfile-date-format (localtime (current-time))))) (format output "~a~a~%" prefix line)) (loop) ? Semantically, they're equivalent (perhaps with a wrapping begin needed), but the compiler might fail to see this. Cheers