Merge bitcoin#569: [Docs] OSX Build - Instructions on how to make the Homebrew OpenSSL headers visible

c9b77b2 Instructions on how to make the Homebrew OpenSSL headers visible (gpdionisio)

Tree-SHA512: 5a1479a286c1cfe25332065902eab008f1b51506a9594038b28b5fc8ccd175229f35df8a1c3734f3d4ae02f5f33e97218cce5b1d5f2f7b5e28abcfba562c4cda

Author: Mrs-X

doc/build-osx.md

@@ -47,17 +47,22 @@ Instructions: Homebrew
         git clone https://github.com/PIVX-Project/PIVX.git
         cd PIVX
 
-2.  Build pivxd:
+2.  Make the Homebrew OpenSSL headers visible to the configure script  (do ```brew info openssl``` to find out why this is necessary, or if you use Homebrew with installation folders different from the default).
+
+        export LDFLAGS+=-L/usr/local/opt/openssl/lib
+        export CPPFLAGS+=-I/usr/local/opt/openssl/include
+
+3.  Build pivxd:
 
         ./autogen.sh
         ./configure --with-gui=qt5
         make
 
-3.  It is also a good idea to build and run the unit tests:
+4.  It is also a good idea to build and run the unit tests:
 
         make check
 
-4.  (Optional) You can also install pivxd to your path:
+5.  (Optional) You can also install pivxd to your path:
 
         make install