Error in Build Process v23.05.2

Hello everyone,
my build is failing. What can I do?
Greetings from Stefan Harbich

make[9]: Entering directory '/home/stefan.harbich/Downloads/apu/openwrt/build_dir/hostpkg/gettext-0.21.1/gettext-tools/src'
/usr/bin/env bash ../libtool  --tag=CC   --mode=link gcc  -O2 -I/home/stefan.harbich/Downloads/apu/openwrt/staging_dir/host/include -I/home/stefan.harbich/Downloads/apu/openwrt/staging_dir/hostpkg/include -I/home/stefan.harbich/Downloads/apu/openwrt/staging_dir/target-x86_64_musl/host/include -DPIC -fPIC  -L/home/stefan.harbich/Downloads/apu/openwrt/staging_dir/host/lib -L/home/stefan.harbich/Downloads/apu/openwrt/staging_dir/hostpkg/lib -L/home/stefan.harbich/Downloads/apu/openwrt/staging_dir/target-x86_64_musl/host/lib -o msgfmt msgfmt-msgfmt.o msgfmt-write-mo.o msgfmt-write-java.o msgfmt-write-csharp.o msgfmt-write-resources.o msgfmt-write-tcl.o msgfmt-write-qt.o msgfmt-write-desktop.o msgfmt-write-xml.o ../../gettext-runtime/intl/msgfmt-hash-string.o libgettextsrc.la   
libtool: link: gcc -O2 -I/home/stefan.harbich/Downloads/apu/openwrt/staging_dir/host/include -I/home/stefan.harbich/Downloads/apu/openwrt/staging_dir/hostpkg/include -I/home/stefan.harbich/Downloads/apu/openwrt/staging_dir/target-x86_64_musl/host/include -DPIC -fPIC -o msgfmt msgfmt-msgfmt.o msgfmt-write-mo.o msgfmt-write-java.o msgfmt-write-csharp.o msgfmt-write-resources.o msgfmt-write-tcl.o msgfmt-write-qt.o msgfmt-write-desktop.o msgfmt-write-xml.o ../../gettext-runtime/intl/msgfmt-hash-string.o  -L/home/stefan.harbich/Downloads/apu/openwrt/staging_dir/host/lib -L/home/stefan.harbich/Downloads/apu/openwrt/staging_dir/hostpkg/lib -L/home/stefan.harbich/Downloads/apu/openwrt/staging_dir/target-x86_64_musl/host/lib ./.libs/libgettextsrc.a /home/stefan.harbich/Downloads/apu/openwrt/build_dir/hostpkg/gettext-0.21.1/gettext-tools/gnulib-lib/.libs/libgettextlib.a /home/stefan.harbich/Downloads/apu/openwrt/staging_dir/hostpkg/lib/libunistring.a /home/stefan.harbich/Downloads/apu/openwrt/build_dir/hostpkg/gettext-0.21.1/libtextstyle/lib/.libs/libtextstyle.a -lm -lncurses -lc
/usr/bin/ld: /home/stefan.harbich/Downloads/apu/openwrt/build_dir/hostpkg/gettext-0.21.1/gettext-tools/gnulib-lib/.libs/libgettextlib.a(rpl_la-encoding.o): in function `xmlIconvWrapper':
encoding.c:(.text+0xe69): undefined reference to `libiconv'
/usr/bin/ld: /home/stefan.harbich/Downloads/apu/openwrt/build_dir/hostpkg/gettext-0.21.1/gettext-tools/gnulib-lib/.libs/libgettextlib.a(rpl_la-encoding.o): in function `xmlFindCharEncodingHandler__internal_alias.part.0':
encoding.c:(.text+0x20d6): undefined reference to `libiconv_open'
/usr/bin/ld: encoding.c:(.text+0x20e4): undefined reference to `libiconv_open'
/usr/bin/ld: encoding.c:(.text+0x215b): undefined reference to `libiconv_open'
/usr/bin/ld: encoding.c:(.text+0x220f): undefined reference to `libiconv_open'
/usr/bin/ld: encoding.c:(.text+0x223f): undefined reference to `libiconv_close'
/usr/bin/ld: encoding.c:(.text+0x2247): undefined reference to `libiconv_close'
/usr/bin/ld: /home/stefan.harbich/Downloads/apu/openwrt/build_dir/hostpkg/gettext-0.21.1/gettext-tools/gnulib-lib/.libs/libgettextlib.a(rpl_la-encoding.o): in function `xmlCharEncCloseFunc__internal_alias':
encoding.c:(.text+0x396a): undefined reference to `libiconv_close'
/usr/bin/ld: encoding.c:(.text+0x39bd): undefined reference to `libiconv_close'
collect2: error: ld returned 1 exit status
make[9]: *** [Makefile:3627: msgfmt] Error 1
make[9]: Leaving directory '/home/stefan.harbich/Downloads/apu/openwrt/build_dir/hostpkg/gettext-0.21.1/gettext-tools/src'
make[8]: *** [Makefile:3417: all] Error 2
make[8]: Leaving directory '/home/stefan.harbich/Downloads/apu/openwrt/build_dir/hostpkg/gettext-0.21.1/gettext-tools/src'
make[7]: *** [Makefile:2817: all-recursive] Error 1
make[7]: Leaving directory '/home/stefan.harbich/Downloads/apu/openwrt/build_dir/hostpkg/gettext-0.21.1/gettext-tools'
make[6]: *** [Makefile:2685: all] Error 2
make[6]: Leaving directory '/home/stefan.harbich/Downloads/apu/openwrt/build_dir/hostpkg/gettext-0.21.1/gettext-tools'
make[5]: *** [Makefile:406: all-recursive] Error 1
make[5]: Leaving directory '/home/stefan.harbich/Downloads/apu/openwrt/build_dir/hostpkg/gettext-0.21.1'
make[4]: *** [Makefile:362: all] Error 2
make[4]: Leaving directory '/home/stefan.harbich/Downloads/apu/openwrt/build_dir/hostpkg/gettext-0.21.1'
make[3]: *** [Makefile:188: /home/stefan.harbich/Downloads/apu/openwrt/build_dir/hostpkg/gettext-0.21.1/.built] Error 2
make[3]: Leaving directory '/home/stefan.harbich/Downloads/apu/openwrt/package/libs/gettext-full'
time: package/libs/gettext-full/host-compile#0.53#0.13#0.65
    ERROR: package/libs/gettext-full [host] failed to build.
make[2]: *** [package/Makefile:126: package/libs/gettext-full/host/compile] Error 1
make[2]: Leaving directory '/home/stefan.harbich/Downloads/apu/openwrt'
make[1]: *** [package/Makefile:122: /home/stefan.harbich/Downloads/apu/openwrt/staging_dir/target-x86_64_musl/stamp/.package_compile] Error 2
make[1]: Leaving directory '/home/stefan.harbich/Downloads/apu/openwrt'
make: *** [/home/stefan.harbich/Downloads/apu/openwrt/include/toplevel.mk:232: world] Fehler 2