apache2/sthttpd: add alternatives for doc

There is a failure to install both of sthttpd-doc and
apache2-doc to rootfs.
...
|Error: Transaction check error:
|  file /usr/share/man/man1/htpasswd.1 conflicts
between attempted installs of sthttpd-doc-2.27.1
-r0.0.armv7ahf_neon and apache2-doc-2.4.27
-r0.0.armv7ahf_neon
...

Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com>
Signed-off-by: Armin Kuster <akuster808@gmail.com>

2 files changed, 9 insertions, 2 deletions

diff --git a/meta-webserver/recipes-httpd/apache2/apache2_2.4.29.bb b/meta-webserver/recipes-httpd/apache2/apache2_2.4.29.bb
index f0298b91ab..c422092f83 100644
--- a/meta-webserver/recipes-httpd/apache2/apache2_2.4.29.bb
+++ b/meta-webserver/recipes-httpd/apache2/apache2_2.4.29.bb
@@ -29,7 +29,10 @@ SRC_URI[sha256sum] = "777753a5a25568a2a27428b2214980564bc1c38c1abf9ccc7630b63999
 
 S = "${WORKDIR}/httpd-${PV}"
 
-inherit autotools update-rc.d pkgconfig systemd
+inherit autotools update-rc.d pkgconfig systemd update-alternatives
+
+ALTERNATIVE_${PN}-doc = "htpasswd.1"
+ALTERNATIVE_LINK_NAME[htpasswd.1] = "${mandir}/man1/htpasswd.1"
 
 SYSTEMD_SERVICE_${PN} = "apache2.service"
 SYSTEMD_AUTO_ENABLE_${PN} = "disable"
diff --git a/meta-webserver/recipes-httpd/sthttpd/sthttpd_2.27.1.bb b/meta-webserver/recipes-httpd/sthttpd/sthttpd_2.27.1.bb
index 37bd7537dd..81815d6526 100644
--- a/meta-webserver/recipes-httpd/sthttpd/sthttpd_2.27.1.bb
+++ b/meta-webserver/recipes-httpd/sthttpd/sthttpd_2.27.1.bb
@@ -19,7 +19,11 @@ UPSTREAM_CHECK_REGEX = "v(?P<pver>\d+(\.\d+)+).tar.gz"
 
 S = "${WORKDIR}/sthttpd-${PV}"
 
-inherit autotools update-rc.d systemd
+inherit autotools update-rc.d systemd update-alternatives
+
+ALTERNATIVE_PRIORITY = "100"
+ALTERNATIVE_${PN}-doc = "htpasswd.1"
+ALTERNATIVE_LINK_NAME[htpasswd.1] = "${mandir}/man1/htpasswd.1"
 
 SRV_DIR ?= "${servicedir}/www"