From 483833d06d9222d363358494c4deef7e1ea5cdda Mon Sep 17 00:00:00 2001
From: philsmd <philsmd@hashcat.net>
Date: Sun, 3 Jan 2016 19:47:55 +0100
Subject: [PATCH] added note about how to fix the 'cannot find -lOpenCL' error
 to BUILD.md

---
 docs/BUILD.md | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

diff --git a/docs/BUILD.md b/docs/BUILD.md
index b495eb6ac..db71fb4f3 100644
--- a/docs/BUILD.md
+++ b/docs/BUILD.md
@@ -24,7 +24,7 @@ The following files are needed inside the *deps/tmp* directory:
     gdk_linux_amd64_352_55_release.run
     
 # Building oclHashcat
-First get a copy of **oclHashcat** repository
+First get a copy of the **oclHashcat** repository
 
 ```sh
 $ git clone https://github.com/hashcat/oclHashcat.git
@@ -49,7 +49,7 @@ $ make install
 ```
 
 Useful tricks:
-- build all binaries (see Note1):
+- build all binaries (see Note1 and Note2):
 ```sh
 $ make binaries
 ```
@@ -62,5 +62,19 @@ $ git clone https://github.com/KhronosGroup/OpenCL-Headers deps/OpenCL-Headers/C
 
 the tools/deps.sh script does not clone this repo automatically since for native compilation it is not needed.
 
+Note2: if you get an error like the following one for "make binaries"
+
+```sh
+/usr/bin/ld: cannot find -lOpenCL
+```
+
+the main reason is probably that the 32-bit version of libOpenCL.so was not found.
+
+A possible solution is to just symbolic link it (if the 32-bit version of libOpenCL.so.1 exists), for example:
+
+```sh
+sudo ln -s /usr/lib/i386-linux-gnu/libOpenCL.so.1 /usr/lib/i386-linux-gnu/libOpenCL.so
+```
+
 =
 Enjoy your fresh **oclHashcat** binaries ;)