Switch to OpenSSL

To follow the Apertis guidelines, which chooses OpenSSL as TLS stack, switch
systemd to be build against it.

In the same line drop systemd-journal-remote and its dependency
libmicrohttpd-dev since it can only be built against GnuTLS but has no value
for Apertis.

Signed-off-by: Walter Lozano <walter.lozano@collabora.com>

debian/control

@@ -38,9 +38,8 @@ Build-Depends: debhelper-compat (= 13),
                liblz4-tool <!nocheck>,
                libbz2-dev <!stage1>,
                zlib1g-dev <!stage1> | libz-dev <!stage1>,
-               libcurl4-gnutls-dev <!stage1> | libcurl-dev <!stage1>,
-               libmicrohttpd-dev <!stage1>,
-               libgnutls28-dev <!stage1>,
+               libcurl4-openssl-dev <!stage1>,
+               libssl-dev <!stage1>,
                libpcre2-dev <!stage1>,
                libgcrypt20-dev,
                libkmod-dev (>= 15),

debian/rules

@@ -113,9 +113,8 @@ CONFFLAGS_deb += \
 	-Dlibiptc=true \
 	-Dlibcurl=true \
 	-Dimportd=true \
-	-Dmicrohttpd=true \
-	-Dgnutls=true \
 	-Dpcre2=true
+	-Dopenssl=true
 else
 CONFFLAGS_deb += \
 	-Daudit=false \
@@ -127,9 +126,8 @@ CONFFLAGS_deb += \
 	-Dlibiptc=false \
 	-Dlibcurl=false \
 	-Dimportd=false \
-	-Dmicrohttpd=false \
-	-Dgnutls=false \
 	-Dpcre2=false
+	-Dopenssl=false
 endif
 
 CONFFLAGS_udeb = \
@@ -153,8 +151,7 @@ CONFFLAGS_udeb = \
 	-Dmachined=false \
 	-Dlibcurl=false \
 	-Dimportd=false \
-	-Dmicrohttpd=false \
-	-Dgnutls=false \
+	-Dopenssl=false \
 	-Dhostnamed=false \
 	-Dtimedated=false \
 	-Dnetworkd=false \
@@ -314,4 +311,4 @@ ifeq (, $(filter nocheck, $(DEB_BUILD_OPTIONS)))
 endif
 
 %:
-	dh $@ --without autoreconf --buildsystem=meson
+	dh $@ --without autoreconf --buildsystem=meson -Nsystemd-journal-remote