xbps-src: added support to append additional shlibs to shlib-{provides,requires}.

Manual.md

@@ -413,6 +413,12 @@ otherwise the default would work in most cases.
 
 - `broken` If set, building the package won't be allowed because its state is currently broken.
 
+- `shlib_provides` A white space separated list of additional sonames the package provides on.
+This appends to the generated file rather than replacing it.
+
+- `shlib_requires` A white space separated list of additional sonames the package requires.
+This appends to the generated file rather than replacing it.
+
 ### build style scripts
 
 The `build_style` variable specifies the build method to build and install a

common/environment/setup-subpkg/subpkg.sh

@@ -6,10 +6,10 @@ unset -v noarch conf_files mutable_files preserve triggers
 unset -v depends run_depends replaces provides conflicts tags
 
 # hooks/post-install/03-strip-and-debug-pkgs
-unset -v nostrip nostrip_files
+unset -v nostrip nostrip_files shlib_requires
 
 # hooks/post-install/04-generate-runtime-deps
-unset -v noverifyrdeps allow_unknown_shlibs
+unset -v noverifyrdeps allow_unknown_shlibs shlib_provides
 
 # hooks/post-install/06-prepare-32bit
 unset -v lib32depends lib32disabled lib32files lib32mode

common/hooks/post-install/03-strip-and-debug-pkgs.sh

@@ -125,6 +125,9 @@ hook() {
 		esac
 	done
 
+	for f in ${shlib_provides}; do
+		echo "$f" >> ${PKGDESTDIR}/.shlib-provides
+	done
 	if [ -s "$PKGDESTDIR/.shlib-provides" ]; then
 		cat $PKGDESTDIR/.shlib-provides | tr '\n' ' ' > $PKGDESTDIR/shlib-provides
 		echo >> $PKGDESTDIR/shlib-provides

common/hooks/post-install/04-generate-runtime-deps.sh

@@ -161,6 +161,9 @@ hook() {
 	if [ -s ${PKGDESTDIR}/rdeps ]; then
 		sed 's,virtual?,,g' -i ${PKGDESTDIR}/rdeps
 	fi
+	for f in ${shlib_requires}; do
+		sorequires+="${f} "
+	done
 	if [ -n "${sorequires}" ]; then
 		echo "${sorequires}" > ${PKGDESTDIR}/shlib-requires
 	fi