Please note that these warnings are just used to help the Homebrew maintainers with debugging if you file an issue. If everything you use Homebrew for is working fine: please don't worry and just ignore them. Thanks! Warning: Unbrewed dylibs were found in /usr/local/lib. If you didn't put them there on purpose they could cause problems when building Homebrew formulae, and may need to be deleted. Unexpected dylibs: /usr/local/lib/libecomlodr.dylib /usr/local/lib/libsymsea.1.1.0.dylib /usr/local/lib/libtcl8.6.dylib /usr/local/lib/libtk8.6.dylib Warning: Unbrewed header files were found in /usr/local/include. If you didn't put them there on purpose they could cause problems when building Homebrew formulae, and may need to be deleted. Unexpected header files: /usr/local/include/fakemysql.h /usr/local/include/fakepq.h /usr/local/include/fakesql.h /usr/local/include/itcl.h /usr/local/include/itcl2TclOO.h /usr/local/include/itclDecls.h /usr/local/include/itclInt.h /usr/local/include/itclIntDecls.h /usr/local/include/itclMigrate2TclCore.h /usr/local/include/itclTclIntStubsFcn.h /usr/local/include/mysqlStubs.h /usr/local/include/node/android-ifaddrs.h /usr/local/include/node/ares.h /usr/local/include/node/ares_version.h /usr/local/include/node/libplatform/libplatform.h /usr/local/include/node/nameser.h /usr/local/include/node/node.h /usr/local/include/node/node_buffer.h /usr/local/include/node/node_internals.h /usr/local/include/node/node_object_wrap.h /usr/local/include/node/node_version.h /usr/local/include/node/openssl/aes.h /usr/local/include/node/openssl/archs/aix-gcc/opensslconf.h /usr/local/include/node/openssl/archs/aix64-gcc/opensslconf.h /usr/local/include/node/openssl/archs/BSD-x86/opensslconf.h /usr/local/include/node/openssl/archs/BSD-x86_64/opensslconf.h /usr/local/include/node/openssl/archs/darwin-i386-cc/opensslconf.h /usr/local/include/node/openssl/archs/darwin64-x86_64-cc/opensslconf.h /usr/local/include/node/openssl/archs/linux-aarch64/opensslconf.h /usr/local/include/node/openssl/archs/linux-armv4/opensslconf.h /usr/local/include/node/openssl/archs/linux-elf/opensslconf.h /usr/local/include/node/openssl/archs/linux-ppc/opensslconf.h /usr/local/include/node/openssl/archs/linux-ppc64/opensslconf.h /usr/local/include/node/openssl/archs/linux-x32/opensslconf.h /usr/local/include/node/openssl/archs/linux-x86_64/opensslconf.h /usr/local/include/node/openssl/archs/solaris-x86-gcc/opensslconf.h /usr/local/include/node/openssl/archs/solaris64-x86_64-gcc/opensslconf.h /usr/local/include/node/openssl/archs/VC-WIN32/opensslconf.h /usr/local/include/node/openssl/archs/VC-WIN64A/opensslconf.h /usr/local/include/node/openssl/asn1.h /usr/local/include/node/openssl/asn1_mac.h /usr/local/include/node/openssl/asn1t.h /usr/local/include/node/openssl/bio.h /usr/local/include/node/openssl/blowfish.h /usr/local/include/node/openssl/bn.h /usr/local/include/node/openssl/buffer.h /usr/local/include/node/openssl/camellia.h /usr/local/include/node/openssl/cast.h /usr/local/include/node/openssl/cmac.h /usr/local/include/node/openssl/cms.h /usr/local/include/node/openssl/comp.h /usr/local/include/node/openssl/conf.h /usr/local/include/node/openssl/conf_api.h /usr/local/include/node/openssl/crypto.h /usr/local/include/node/openssl/des.h /usr/local/include/node/openssl/des_old.h /usr/local/include/node/openssl/dh.h /usr/local/include/node/openssl/dsa.h /usr/local/include/node/openssl/dso.h /usr/local/include/node/openssl/dtls1.h /usr/local/include/node/openssl/e_os2.h /usr/local/include/node/openssl/ebcdic.h /usr/local/include/node/openssl/ec.h /usr/local/include/node/openssl/ecdh.h /usr/local/include/node/openssl/ecdsa.h /usr/local/include/node/openssl/engine.h /usr/local/include/node/openssl/err.h /usr/local/include/node/openssl/evp.h /usr/local/include/node/openssl/hmac.h /usr/local/include/node/openssl/idea.h /usr/local/include/node/openssl/krb5_asn.h /usr/local/include/node/openssl/kssl.h /usr/local/include/node/openssl/lhash.h /usr/local/include/node/openssl/md4.h /usr/local/include/node/openssl/md5.h /usr/local/include/node/openssl/mdc2.h /usr/local/include/node/openssl/modes.h /usr/local/include/node/openssl/obj_mac.h /usr/local/include/node/openssl/objects.h /usr/local/include/node/openssl/ocsp.h /usr/local/include/node/openssl/opensslconf.h /usr/local/include/node/openssl/opensslv.h /usr/local/include/node/openssl/ossl_typ.h /usr/local/include/node/openssl/pem.h /usr/local/include/node/openssl/pem2.h /usr/local/include/node/openssl/pkcs12.h /usr/local/include/node/openssl/pkcs7.h /usr/local/include/node/openssl/pqueue.h /usr/local/include/node/openssl/rand.h /usr/local/include/node/openssl/rc2.h /usr/local/include/node/openssl/rc4.h /usr/local/include/node/openssl/ripemd.h /usr/local/include/node/openssl/rsa.h /usr/local/include/node/openssl/safestack.h /usr/local/include/node/openssl/seed.h /usr/local/include/node/openssl/sha.h /usr/local/include/node/openssl/srp.h /usr/local/include/node/openssl/srtp.h /usr/local/include/node/openssl/ssl.h /usr/local/include/node/openssl/ssl2.h /usr/local/include/node/openssl/ssl23.h /usr/local/include/node/openssl/ssl3.h /usr/local/include/node/openssl/stack.h /usr/local/include/node/openssl/symhacks.h /usr/local/include/node/openssl/tls1.h /usr/local/include/node/openssl/ts.h /usr/local/include/node/openssl/txt_db.h /usr/local/include/node/openssl/ui.h /usr/local/include/node/openssl/ui_compat.h /usr/local/include/node/openssl/whrlpool.h /usr/local/include/node/openssl/x509.h /usr/local/include/node/openssl/x509_vfy.h /usr/local/include/node/openssl/x509v3.h /usr/local/include/node/pthread-fixes.h /usr/local/include/node/stdint-msvc2008.h /usr/local/include/node/tree.h /usr/local/include/node/uv-aix.h /usr/local/include/node/uv-bsd.h /usr/local/include/node/uv-darwin.h /usr/local/include/node/uv-errno.h /usr/local/include/node/uv-linux.h /usr/local/include/node/uv-sunos.h /usr/local/include/node/uv-threadpool.h /usr/local/include/node/uv-unix.h /usr/local/include/node/uv-version.h /usr/local/include/node/uv-win.h /usr/local/include/node/uv.h /usr/local/include/node/v8-debug.h /usr/local/include/node/v8-platform.h /usr/local/include/node/v8-profiler.h /usr/local/include/node/v8-testing.h /usr/local/include/node/v8-util.h /usr/local/include/node/v8-version.h /usr/local/include/node/v8.h /usr/local/include/node/v8config.h /usr/local/include/node/zconf.h /usr/local/include/node/zlib.h /usr/local/include/odbcStubs.h /usr/local/include/pqStubs.h /usr/local/include/tcl.h /usr/local/include/tclDecls.h /usr/local/include/tclOO.h /usr/local/include/tclOODecls.h /usr/local/include/tclPlatDecls.h /usr/local/include/tclThread.h /usr/local/include/tclTomMath.h /usr/local/include/tclTomMathDecls.h /usr/local/include/tdbc.h /usr/local/include/tdbcDecls.h /usr/local/include/tdbcInt.h /usr/local/include/tk.h /usr/local/include/tkDecls.h /usr/local/include/tkPlatDecls.h Warning: Unbrewed .pc files were found in /usr/local/lib/pkgconfig. If you didn't put them there on purpose they could cause problems when building Homebrew formulae, and may need to be deleted. Unexpected .pc files: /usr/local/lib/pkgconfig/tcl.pc /usr/local/lib/pkgconfig/tk.pc Warning: Unbrewed static libraries were found in /usr/local/lib. If you didn't put them there on purpose they could cause problems when building Homebrew formulae, and may need to be deleted. Unexpected static libraries: /usr/local/lib/libappfirewall.a /usr/local/lib/libautoblock.a /usr/local/lib/libautosetup.a /usr/local/lib/libconnectionsclient.a /usr/local/lib/liblocationawareness.a /usr/local/lib/libpersonalfirewall.a /usr/local/lib/libtclstub8.6.a /usr/local/lib/libtkstub8.6.a /usr/local/lib/libtrustedcomponents.a Warning: You have unlinked kegs in your Cellar Leaving kegs unlinked can lead to build-trouble and cause brews that depend on those kegs to fail to run properly once built. Run `brew link` on these: autoconf libgpg-error libksba libtool libyaml pkg-config