I am uploading a NMU to fix this.
diff -Nru fdm-1.9+git20181219/debian/changelog
fdm-1.9+git20181219/debian/changelog
--- fdm-1.9+git20181219/debian/changelog 2019-01-12 14:25:15.000000000
+0100
+++ fdm-1.9+git20181219/debian/changelog 2023-07-01 22:52:24.000000000
+0200
@@ -1,3 +1,10 @@
+fdm (1.9+git20181219-1.1) unstable; urgency=medium
+
+ * Non-maintainer upload
+ * Drop unnecessary Build-Depends: libpcre3-dev (Closes: #1000125)
+
+ -- Bastian Germann <b...@debian.org> Sat, 01 Jul 2023 22:52:24 +0200
+
fdm (1.9+git20181219-1) unstable; urgency=medium
* New project homepage: https://github.com/nicm/fdm (Closes: #878646)
diff -Nru fdm-1.9+git20181219/debian/control fdm-1.9+git20181219/debian/control
--- fdm-1.9+git20181219/debian/control 2019-01-09 17:34:41.000000000 +0100
+++ fdm-1.9+git20181219/debian/control 2023-07-01 22:52:14.000000000 +0200
@@ -2,7 +2,7 @@
Section: mail
Priority: optional
Maintainer: Frank Terbeck <f...@bewatermyfriend.org>
-Build-Depends: debhelper (>= 12), libssl-dev, zlib1g-dev, libpcre3-dev,
libtdb-dev, bison, flex
+Build-Depends: debhelper (>= 12), libssl-dev, zlib1g-dev, libtdb-dev, bison,
flex
Homepage: https://github.com/nicm/fdm
Vcs-Browser: https://github.com/ft/pkg-fdm/
Vcs-Git: https://github.com/ft/pkg-fdm.git
