I am uploading a NMU to fix this.
The debdiff is attached.
diff -Nru driftnet-1.5.0/debian/changelog driftnet-1.5.0/debian/changelog
--- driftnet-1.5.0/debian/changelog 2023-09-22 22:35:48.000000000 +0200
+++ driftnet-1.5.0/debian/changelog 2023-10-07 15:31:13.000000000 +0200
@@ -1,3 +1,11 @@
+driftnet (1.5.0-0.2) unstable; urgency=medium
+
+ * Non-maintainer upload
+ * Patch: Recover else clause in endianess if (Closes: #1053612)
+ * d/watch: Terminate opts before URL
+
+ -- Bastian Germann <b...@debian.org> Sat, 07 Oct 2023 13:31:13 +0000
+
driftnet (1.5.0-0.1) unstable; urgency=medium
* Non-maintainer upload
diff -Nru
driftnet-1.5.0/debian/patches/Recover-else-clause-in-endianess-if.patch
driftnet-1.5.0/debian/patches/Recover-else-clause-in-endianess-if.patch
--- driftnet-1.5.0/debian/patches/Recover-else-clause-in-endianess-if.patch
1970-01-01 01:00:00.000000000 +0100
+++ driftnet-1.5.0/debian/patches/Recover-else-clause-in-endianess-if.patch
2023-10-07 15:31:13.000000000 +0200
@@ -0,0 +1,23 @@
+Origin: https://github.com/deiv/driftnet/pull/50
+From: Bastian Germann <b...@debian.org>
+Date: Sat, 7 Oct 2023 15:06:52 +0200
+Subject: Recover else clause in endianess if
+
+The else clause was included in the inner (GTK3) if clause in
+465a1ff68a (Add RGB byte ordering implementation in PEL related macros).
+---
+ src/display/img.h | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/src/display/img.h b/src/display/img.h
+index 331095b..2f99ada 100644
+--- a/src/display/img.h
++++ b/src/display/img.h
+@@ -69,6 +69,7 @@ typedef uint32_t pel;
+ # define GETB(p) ((chan)(((p) & (pel)0xff000000) >> 24))
+ # define GETA(p) ((chan)(((p) & (pel)0x000000ff) ))
+ #endif
++#else
+ # error "no endianness defined"
+ #endif
+
diff -Nru driftnet-1.5.0/debian/patches/series
driftnet-1.5.0/debian/patches/series
--- driftnet-1.5.0/debian/patches/series 1970-01-01 01:00:00.000000000
+0100
+++ driftnet-1.5.0/debian/patches/series 2023-10-07 15:31:13.000000000
+0200
@@ -0,0 +1 @@
+Recover-else-clause-in-endianess-if.patch
diff -Nru driftnet-1.5.0/debian/watch driftnet-1.5.0/debian/watch
--- driftnet-1.5.0/debian/watch 2023-09-22 22:35:48.000000000 +0200
+++ driftnet-1.5.0/debian/watch 2023-10-07 15:31:13.000000000 +0200
@@ -1,5 +1,5 @@
version=4
opts=\
repacksuffix=+dfsg,\
-dversionmangle=auto,\
+dversionmangle=auto \
https://github.com/deiv/driftnet/tags .*/v?(\d[\d\.]+)\.tar\.gz
