Merge #12581: doc: Mention configure without wallet in FreeBSD instructions

c5be37e doc: Mention configure without wallet in FreeBSD instructions (Dan Bolser)

Tree-SHA512: 495f9c1b6d73e53ad66883f26fd789423cbbd73110d4aff0aad9c09bd50583277cf8a3757e4ac6c7e0a630e68214eb711227330bfcce6944e1f9fc5d52e68ed0

Author: laanwj

doc/build-unix.md

@@ -326,6 +326,7 @@ For the wallet (optional):
 Then build using:
 
     ./autogen.sh
+    ./configure --disable-wallet # OR
     ./configure BDB_CFLAGS="-I${BDB_PREFIX}/include" BDB_LIBS="-L${BDB_PREFIX}/lib -ldb_cxx"
     gmake