@ubu:~/secp256k1$ sudo make install
make[1]: Bxoд в кaтaлoг `/home/user/secp256k1'
 /bin/mkdir -p '/usr/local/lib'
 /bin/bash ./libtool   --mode=install /usr/bin/install -c   libsecp256k1.la '/usr/local/lib'
libtool: install: /usr/bin/install -c .libs/libsecp256k1.so.0.0.0 /usr/local/lib/libsecp256k1.so.0.0.0
libtool: install: (cd /usr/local/lib && { ln -s -f libsecp256k1.so.0.0.0 libsecp256k1.so.0 || { rm -f libsecp256k1.so.0 && ln -s libsecp256k1.so.0.0.0 libsecp256k1.so.0; }; })
libtool: install: (cd /usr/local/lib && { ln -s -f libsecp256k1.so.0.0.0 libsecp256k1.so || { rm -f libsecp256k1.so && ln -s libsecp256k1.so.0.0.0 libsecp256k1.so; }; })
libtool: install: /usr/bin/install -c .libs/libsecp256k1.lai /usr/local/lib/libsecp256k1.la
libtool: install: /usr/bin/install -c .libs/libsecp256k1.a /usr/local/lib/libsecp256k1.a
libtool: install: chmod 644 /usr/local/lib/libsecp256k1.a
libtool: install: /usr/bin/ranlib /usr/local/lib/libsecp256k1.a
libtool: finish: PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/sbin" ldconfig -n /usr/local/lib
----------------------------------------------------------------------
Libraries have been installed in:
   /usr/local/lib

If you ever happen to want to link against installed libraries
in a given directory, LIBDIR, you must either use libtool, and
specify the full pathname of the library, or use the `-LLIBDIR'
flag during linking and do at least one of the following:
   - add LIBDIR to the `LD_LIBRARY_PATH' environment variable
     during execution
   - add LIBDIR to the `LD_RUN_PATH' environment variable
     during linking
   - use the `-Wl,-rpath -Wl,LIBDIR' linker flag
   - have your system administrator add LIBDIR to `/etc/ld.so.conf'

See any operating system documentation about shared libraries for
more information, such as the ld(1) and ld.so(8) manual pages.
----------------------------------------------------------------------
 /bin/mkdir -p '/usr/local/include'
 /usr/bin/install -c -m 644 include/secp256k1.h '/usr/local/include'
 /bin/mkdir -p '/usr/local/lib/pkgconfig'
 /usr/bin/install -c -m 644 libsecp256k1.pc '/usr/local/lib/pkgconfig'
make[1]: Bыxoд из кaтaлoгa `/home/user/secp256k1'