build follow readme， but tips config.status: error: XXX

[lomelee]

checking if gcc supports -fno-rtti -fno-exceptions... no
checking for gcc option to produce PIC... -fPIC -DPIC
checking if gcc PIC flag -fPIC -DPIC works... yes
checking if gcc static flag -static works... yes
checking if gcc supports -c -o file.o... yes
checking if gcc supports -c -o file.o... (cached) yes
checking whether the gcc linker (/usr/bin/ld -m elf_x86_64) supports shared libraries... yes
checking whether -lc should be explicitly linked in... no
checking dynamic linker characteristics... GNU/Linux ld.so
checking how to hardcode library paths into programs... immediate
checking whether stripping libraries is possible... yes
checking if libtool supports shared libraries... yes
checking whether to build shared libraries... yes
checking whether to build static libraries... yes
checking for pkg-config... /usr/bin/pkg-config
checking pkg-config is at least version 0.9.0... yes
checking for freeswitch... yes
checking for unimrcpclient >= 0.0.1... no
no
checking that generated files are newer than configure... done
configure: creating ./config.status
config.status: creating Makefile
config.status: executing depfiles commands
config.status: error: in /usr/src/libs/mod_unimrcp': config.status: error: Something went wrong bootstrapping makefile fragments for automatic dependency tracking. If GNU make was not used, consider re-running the configure script with MAKE="gmake" (or whatever is necessary). You can also try re-running configure with the '--disable-dependency-tracking' option to at least be able to build the package (albeit without support for automatic dependency tracking). See config.log' for more details

[lomelee]

thanks all,
I fix it ！
at my dev system (debian 11 bullseye)，

export PKG_CONFIG_PATH info like this：

export PKG_CONFIG_PATH=/usr/local/freeswitch/lib/pkgconfig:/usr/local/unimrcp/lib/pkgconfig

look : lib not libs