Hello Samuel, due to a customer request, I happened to look into curl build profiles. In that process I have encountered several improvements to be made. The cumulative changes can be found in the attached patch. I do not think that the patch is appropriate for inclusion in trixie, because it does not address a release-critical bug. It should be reasonably safe though, because I verified that the patch does not affect binary artifacts of a default build. I compared a patched build to an unpatched build with identical debian/changelog and the results were bit-identical. Let's go through the suggested changes. A pending debian-policy change suggests documenting non-trivial build profiles in debian/README.source. My patch proposes such an addition. While debian/rules has support for build profiles, they are not declared in debian/control. My patch adds the relevant declarations. As a result, dh_install can figure when it should skip operation and two conditionals in debian/rules become redundant. The pkg.curl.gnutls-only profiles does not actually work, because it attempts installing curl-config from the openssl build. I propose installing the one from the gnutls build instead. In earlier times, debian/rules used quilt to vary patches for differentiating build flavours. It no longer does and we may drop the quilt dependency as a result. ca-certificates is only used for testing curl and can be skipped in a nocheck build. In addition to comparing a patched to an unpatched build, I also compared the artifacts produced by a pkg.curl.gnutls-only and pkg.curl.openssl-only build to the artifacts produced by a full build and observed that they also are bit-identical (subject to the packages actually generated). Last but not least, allow me to observe that libcurl4t64 links gnutls (via librtmp1) and libcurl3t64-gnutls links openssl via libldap2. A truly openssl-free build may be obtained by additionally enabling pkg.curl.noldap, but there is no pkg.curl.nortmp profile yet. This latter aspect is separately reported by Matthias Klose in #1065566. Hope you like the patch Helmut