Lighttpd

When building Lighttpd with autotools, LIGHTTPD_STATIC=yes and Lua, algo_hmac.o seems to be missing from the link phase, resulting in an error: undefined reference to `li_hmac_md5'.

To reproduce in Alpine Linux container:¶

apk add --update --no-cache autoconf automake make libtool gcc musl-dev lua-dev pcre2-dev
wget https://download.lighttpd.net/lighttpd/releases-1.4.x/lighttpd-1.4.70.tar.gz
tar -xf lighttpd-1.4.70.tar.gz
cd lighttpd-1.4.70
LIGHTTPD_STATIC=yes ./configure --with-lua
touch src/plugins-static.h # to just continue with the build
make

Relevant output:¶

libtool: link: gcc -g -O2 -pipe -Wall -W -Wshadow -pedantic -o lighttpd lighttpd-server.o lighttpd-response.o lighttpd-connections.o lighttpd-h1.o lighttpd-h2.o lighttpd-sock_addr_cache.o lighttpd-network.o lighttpd-network_write.o ls-hpack/lighttpd-lshpack.o lighttpd-algo_xxhash.o lighttpd-fdevent_impl.o lighttpd-http_range.o lighttpd-data_config.o lighttpd-configfile.o lighttpd-configparser.o lighttpd-base64.o lighttpd-buffer.o lighttpd-burl.o lighttpd-log.o lighttpd-http_header.o lighttpd-http_kv.o lighttpd-keyvalue.o lighttpd-chunk.o lighttpd-http_chunk.o lighttpd-fdevent.o lighttpd-fdevent_fdnode.o lighttpd-gw_backend.o lighttpd-stat_cache.o lighttpd-http_etag.o lighttpd-array.o lighttpd-algo_md5.o lighttpd-algo_sha1.o lighttpd-algo_splaytree.o lighttpd-configfile-glue.o lighttpd-http-header-glue.o lighttpd-http_cgi.o lighttpd-http_date.o lighttpd-plugin.o lighttpd-reqpool.o lighttpd-request.o lighttpd-sock_addr.o lighttpd-rand.o lighttpd-fdlog_maint.o lighttpd-fdlog.o lighttpd-sys-setjmp.o lighttpd-ck.o lighttpd-fdevent_win32.o lighttpd-fs_win32.o lighttpd-mod_access.o lighttpd-mod_accesslog.o lighttpd-mod_ajp13.o lighttpd-mod_alias.o lighttpd-mod_auth.o lighttpd-mod_auth_api.o lighttpd-mod_authn_file.o lighttpd-mod_cgi.o lighttpd-mod_deflate.o lighttpd-mod_dirlisting.o lighttpd-mod_evhost.o lighttpd-mod_expire.o lighttpd-mod_extforward.o lighttpd-mod_fastcgi.o lighttpd-mod_indexfile.o lighttpd-mod_proxy.o lighttpd-mod_redirect.o lighttpd-mod_rewrite.o lighttpd-mod_rrdtool.o lighttpd-mod_scgi.o lighttpd-mod_setenv.o lighttpd-mod_simple_vhost.o lighttpd-mod_sockproxy.o lighttpd-mod_ssi.o lighttpd-mod_staticfile.o lighttpd-mod_status.o lighttpd-mod_userdir.o lighttpd-mod_vhostdb.o lighttpd-mod_vhostdb_api.o lighttpd-mod_webdav.o lighttpd-mod_magnet.o lighttpd-mod_magnet_cache.o -Wl,--export-dynamic  -lpcre2-8 -lz -llua -lm
/usr/lib/gcc/x86_64-alpine-linux-musl/12.2.1/../../../../x86_64-alpine-linux-musl/bin/ld: lighttpd-mod_magnet.o: in function `magnet_hmac_once':
/lighttpd-1.4.70/src/mod_magnet.c:867: undefined reference to `li_hmac_md5'

Possible fix (diff against master):¶

diff --git a/src/Makefile.am b/src/Makefile.am
index 95d5e076..bbc98ac9 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -433,8 +433,7 @@ lighttpd_SOURCES += mod_maxminddb.c
 lighttpd_LDADD += $(MAXMINDDB_LIB)
 endif
 if BUILD_WITH_LUA
-lighttpd_SOURCES += mod_magnet.c mod_magnet_cache.c
-                    #algo_hmac.c
+lighttpd_SOURCES += mod_magnet.c mod_magnet_cache.c algo_hmac.c
 lighttpd_CPPFLAGS += $(LUA_CFLAGS)
 lighttpd_LDADD += $(LUA_LIBS) -lm
 endif

Not sure why it was commented out earlier.