diff --git a/docs/BUILD.md b/docs/BUILD.md
index 247773399..2292cedad 100644
--- a/docs/BUILD.md
+++ b/docs/BUILD.md
@@ -23,140 +23,153 @@ To be able to compile the ocl binaries, it is required to have the latest stable
 
     http://support.amd.com/
 
-The next thing to do is download all the third party libraries listed above and put files into */opt/hashcat-deps/tmp* directory.
+The next thing to do is download all the third party libraries listed above and put these files into the *hashcat-deps/tmp* directory.
 
-The following files are needed inside the */opt/hashcat-deps/tmp* directory:
+The following files are needed inside the *hashcat-deps/tmp* directory:
     
     ADL_SDK8.zip
     R352-developer.zip
     cuda_7.5.18_linux.run
     NVIDIA-Linux-x86_64-352.21.run
     gdk_linux_amd64_352_55_release.run
-    AMDAPPSDK-3.0-linux64.tar.bz2
+    AMD-APP-SDKInstaller-v3.0.130.135-GA-linux64.tar.bz2
 
 Now just execute the following script to complete the installation of dependencies (check for an updated version in **docs/deps.sh**):
 
     #!/bin/bash
     # Author: Gabriele Gristina <matrix@hashcat.net>
-    # Revision: 1.0
+    # Revision: 1.01
     
     ## global vars
     DEPS="make gcc-4.9 g++-4.9 gcc-4.9-multilib g++-4.9-multilib libc6-dev-i386 mingw-w64 build-essential unzip"
-    DOWNLOAD_DEPS="ADL_SDK8.zip R352-developer.zip cuda_7.5.18_linux.run NVIDIA-Linux-x86_64-352.21.run gdk_linux_amd64_352_55_release.run AMDAPPSDK-3.0-linux64.tar.bz2"
+    DOWNLOAD_DEPS="ADL_SDK8.zip R352-developer.zip cuda_7.5.18_linux.run NVIDIA-Linux-x86_64-352.21.run gdk_linux_amd64_352_55_release.run AMD-APP-SDKInstaller-v3.0.130.135-GA-linux64.tar.bz2"
     
-    ## root check
-    if [ $(id -u) -ne 0 ]; then
-    	echo "! Must be root"
-    	exit 1
-    fi
+    ## enter the hashcat-deps directory
+    cur_directory=$(dirname ${0})
+    script_directory=$(cd ${cur_directory} && pwd -P)
+    hashcat_deps_dir=${script_directory}/../hashcat-deps
+    
+    mkdir -p ${hashcat_deps_dir} # but it should already exist (is part of the repository)
+    cd ${hashcat_deps_dir}
     
-    ## cleanup 'hashcat-deps' directories
-    rm -rf /opt/hashcat-deps/{adl-sdk,cuda-7.5,NVIDIA-Linux-x86_64-352.21,nvidia-gdk,amd-app-sdk} && \
-    mkdir -p /opt/hashcat-deps/{tmp,adl-sdk,cuda-7.5,NVIDIA-Linux-x86_64-352.21,nvidia-gdk,amd-app-sdk} && \
-    cd /opt/hashcat-deps/tmp
+    ## cleanup the directories under the 'hashcat-deps' folder
+    rm -rf {adl-sdk,cuda-7.5,NVIDIA-Linux-x86_64-352.21,nvidia-gdk,amd-app-sdk} && \
+    mkdir -p {tmp,adl-sdk,cuda-7.5,NVIDIA-Linux-x86_64-352.21,nvidia-gdk,amd-app-sdk} && \
+    cd tmp/
     
     if [ $? -ne 0 ]; then
-    	echo "! Cannot create hashcat-deps directories."
-    	exit 1
+      echo "! Cannot create hashcat-deps directories."
+      exit 1
     fi
     
     ## check dependencies
     i=0
     for d in ${DOWNLOAD_DEPS}; do
-    	if [ ! -f "${d}" ]; then
-    		echo "! ${d} not found."
-    		((i++))
-    	fi
+      if [ ! -f "${d}" ]; then
+        echo "! ${d} not found."
+        ((i++))
+      fi
     done
     
     if [ ${i} -gt 0 ]; then
-    	echo "! Please download manually into the directory /opt/hashcat-deps/tmp"
-    	exit 1
+      echo "! Please manually download all the above dependencies to the hashcat-deps/tmp/ directory"
+      exit 1
     fi
     
     ## installing needed packages
     for pkg in ${DEPS}; do
-    	apt-get -y install ${pkg}
-    	if [ $? -ne 0 ]; then
-    		echo "! failed to install ${pkg}"
-    		exit 1
-    	fi
+    
+      # check if the package is already installed
+      dpkg -s ${pkg} &>/dev/null
+      if [ $? -ne 0 ]; then
+        ## root check
+        if [ $(id -u) -ne 0 ]; then
+          echo "! Must be root to install the required package '${pkg}' with apt-get"
+          exit 1
+        fi
+    
+        apt-get -y install ${pkg}
+        if [ $? -ne 0 ]; then
+          echo "! failed to install ${pkg}"
+          exit 1
+        fi
+      fi
     done
     
     ## extract ADL SDK
-    unzip ADL_SDK8.zip -d /opt/hashcat-deps/adl-sdk-8
+    unzip ADL_SDK8.zip -d ${hashcat_deps_dir}/adl-sdk-8
     ret=$?
     
     if [[ ${ret} -ne 0 ]] && [[ ${ret} -ne 1 ]]; then
-    	echo "! failed to extract ADL SDK"
-    	exit 1
+      echo "! failed to extract ADL SDK"
+      exit 1
     fi
     
-    rm -rf /opt/hashcat-deps/adl-sdk && ln -s /opt/hashcat-deps/adl-sdk-8 /opt/hashcat-deps/adl-sdk
-
+    rm -rf ${hashcat_deps_dir}/adl-sdk && ln -s ${hashcat_deps_dir}/adl-sdk-8 ${hashcat_deps_dir}/adl-sdk
+    
     if [ $? -ne 0 ]; then
-    	echo "! failed to setup ADL SDK link"
-    	exit 1
+      echo "! failed to setup ADL SDK link"
+      exit 1
     fi
     
     ## extract NVAPI
-    unzip R352-developer.zip -d /opt/hashcat-deps/
+    unzip R352-developer.zip -d ${hashcat_deps_dir}
     ret=$?
     
     if [[ ${ret} -ne 0 ]] && [[ ${ret} -ne 1 ]]; then
-    	echo "! failed to extract NVAPI"
-    	exit 1
+      echo "! failed to extract NVAPI"
+      exit 1
     fi
     
     ## install CUDA SDK
     chmod +x cuda_7.5.18_linux.run && \
-    ./cuda_7.5.18_linux.run -toolkit -silent -override --toolkitpath=/opt/hashcat-deps/cuda-7.5
+    ./cuda_7.5.18_linux.run -toolkit -silent -override --toolkitpath=${hashcat_deps_dir}/cuda-7.5
     
     if [ $? -ne 0 ]; then
-    	echo "! failed to install CUDA SDK"
-    	exit 1
+      echo "! failed to install CUDA SDK"
+      exit 1
     fi
     
     ## install NVIDIA Driver
     chmod +x NVIDIA-Linux-x86_64-352.21.run && \
     ./NVIDIA-Linux-x86_64-352.21.run -x && \
-    mv NVIDIA-Linux-x86_64-352.21 /opt/hashcat-deps/ && \
-    cd /opt/hashcat-deps/NVIDIA-Linux-x86_64-352.21 && \
+    mv NVIDIA-Linux-x86_64-352.21 ${hashcat_deps_dir}/ && \
+    cd ${hashcat_deps_dir}/NVIDIA-Linux-x86_64-352.21 && \
     ln -s libnvidia-ml.so.352.21 libnvidia-ml.so && \
     ln -s libcuda.so.352.21 libcuda.so && \
     cd 32 && \
     ln -s libnvidia-ml.so.352.21 libnvidia-ml.so && \
     ln -s libcuda.so.352.21 libcuda.so && \
-    cd /opt/hashcat-deps/tmp
+    cd ${hashcat_deps_dir}/tmp
     
     if [ $? -ne 0 ]; then
-    	echo "! failed to install NVIDIA Driver"
-    	exit 1
+      echo "! failed to install NVIDIA Driver"
+      exit 1
     fi
     
     ## install NVIDIA GPU Deployment Kit
     chmod +x gdk_linux_amd64_352_55_release.run && \
-    ./gdk_linux_amd64_352_55_release.run --silent --installdir=/opt/hashcat-deps/nvidia-gdk
+    ./gdk_linux_amd64_352_55_release.run --silent --installdir=${hashcat_deps_dir}/nvidia-gdk
     
     if [ $? -ne 0 ]; then
-    	echo "! failed to install NVIDIA GPU Deployment Kit"
-    	exit 1
+      echo "! failed to install NVIDIA GPU Deployment Kit"
+      exit 1
     fi
     
     ## extract AMD APP SDK
-    tar xjf AMDAPPSDK-3.0-linux64.tar.bz2 && \
-    ./AMD-APP-SDK-v3.0.130.135-GA-linux64.sh --noexec --target /opt/hashcat-deps/amd-app-sdk-v3.0.130.135
+    tar xjf AMD-APP-SDKInstaller-v3.0.130.135-GA-linux64.tar.bz2 && \
+    ./AMD-APP-SDK-v3.0.130.135-GA-linux64.sh --noexec --target ${hashcat_deps_dir}/amd-app-sdk-v3.0.130.135
     
     if [ $? -ne 0 ]; then
-    	echo "! failed to extract AMD APP SDK"
-    	exit 1
+      echo "! failed to extract AMD APP SDK"
+      exit 1
     fi
     
-    rm -rf /opt/hashcat-deps/amd-app-sdk && ln -s /opt/hashcat-deps/amd-app-sdk-v3.0.130.135 /opt/hashcat-deps/amd-app-sdk
-
+    rm -rf ${hashcat_deps_dir}/amd-app-sdk && ln -s ${hashcat_deps_dir}/amd-app-sdk-v3.0.130.135 ${hashcat_deps_dir}/amd-app-sdk
+    
     if [ $? -ne 0 ]; then
-    	echo "! failed to setup ADL SDK link"
-    	exit 1
+      echo "! failed to setup ADL SDK link"
+      exit 1
     fi
     
     echo "> oclHashcat dependencies have been resolved."
diff --git a/hashcat-deps/.lock b/hashcat-deps/.lock
new file mode 100644
index 000000000..e69de29bb
diff --git a/hashcat-deps/tmp/.lock b/hashcat-deps/tmp/.lock
new file mode 100644
index 000000000..e69de29bb
diff --git a/src/Makefile b/src/Makefile
index a65cdfd68..b8888d694 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -24,18 +24,18 @@ endif
 ## Library Paths
 ##
 
-OCL                      := /opt/hashcat-deps/amd-app-sdk
+OCL                      := hashcat-deps/amd-app-sdk
 OCLLIBPATH32             := $(OCL)/lib/x86
 OCLLIBPATH64             := $(OCL)/lib/x86_64
 
-CUDA                     := /opt/hashcat-deps/cuda-7.5
-CUDALIBPATH32            := /opt/hashcat-deps/NVIDIA-Linux-x86_64-352.21/32
-CUDALIBPATH64            := /opt/hashcat-deps/NVIDIA-Linux-x86_64-352.21
+CUDA                     := hashcat-deps/cuda-7.5
+CUDALIBPATH32            := hashcat-deps/NVIDIA-Linux-x86_64-352.21/32
+CUDALIBPATH64            := hashcat-deps/NVIDIA-Linux-x86_64-352.21
 
-ADL                      := /opt/hashcat-deps/adl-sdk
+ADL                      := hashcat-deps/adl-sdk
 
-GDK                      := /opt/hashcat-deps/nvidia-gdk
-NVAPI                    := /opt/hashcat-deps/R352-developer
+GDK                      := hashcat-deps/nvidia-gdk
+NVAPI                    := hashcat-deps/R352-developer
 
 NVMLINCPATH              := $(GDK)/usr/include/nvidia/gdk/
 NVMLLIBPATH32            := $(CUDALIBPATH32)
diff --git a/tools/deps.sh b/tools/deps.sh
index 6385b8a5e..02d88ad03 100755
--- a/tools/deps.sh
+++ b/tools/deps.sh
@@ -1,21 +1,23 @@
 #!/bin/bash
 # Author: Gabriele Gristina <matrix@hashcat.net>
-# Revision: 1.0
+# Revision: 1.01
 
 ## global vars
 DEPS="make gcc-4.9 g++-4.9 gcc-4.9-multilib g++-4.9-multilib libc6-dev-i386 mingw-w64 build-essential unzip"
-DOWNLOAD_DEPS="ADL_SDK8.zip R352-developer.zip cuda_7.5.18_linux.run NVIDIA-Linux-x86_64-352.21.run gdk_linux_amd64_352_55_release.run AMDAPPSDK-3.0-linux64.tar.bz2"
+DOWNLOAD_DEPS="ADL_SDK8.zip R352-developer.zip cuda_7.5.18_linux.run NVIDIA-Linux-x86_64-352.21.run gdk_linux_amd64_352_55_release.run AMD-APP-SDKInstaller-v3.0.130.135-GA-linux64.tar.bz2"
 
-## root check
-if [ $(id -u) -ne 0 ]; then
-  echo "! Must be root"
-  exit 1
-fi
+## enter the hashcat-deps directory
+cur_directory=$(dirname ${0})
+script_directory=$(cd ${cur_directory} && pwd -P)
+hashcat_deps_dir=${script_directory}/../hashcat-deps
 
-## cleanup 'hashcat-deps' directories
-rm -rf /opt/hashcat-deps/{adl-sdk,cuda-7.5,NVIDIA-Linux-x86_64-352.21,nvidia-gdk,amd-app-sdk} && \
-mkdir -p /opt/hashcat-deps/{tmp,adl-sdk,cuda-7.5,NVIDIA-Linux-x86_64-352.21,nvidia-gdk,amd-app-sdk} && \
-cd /opt/hashcat-deps/tmp
+mkdir -p ${hashcat_deps_dir} # but it should already exist (is part of the repository)
+cd ${hashcat_deps_dir}
+
+## cleanup the directories under the 'hashcat-deps' folder
+rm -rf {adl-sdk,cuda-7.5,NVIDIA-Linux-x86_64-352.21,nvidia-gdk,amd-app-sdk} && \
+mkdir -p {tmp,adl-sdk,cuda-7.5,NVIDIA-Linux-x86_64-352.21,nvidia-gdk,amd-app-sdk} && \
+cd tmp/
 
 if [ $? -ne 0 ]; then
   echo "! Cannot create hashcat-deps directories."
@@ -32,21 +34,32 @@ for d in ${DOWNLOAD_DEPS}; do
 done
 
 if [ ${i} -gt 0 ]; then
-  echo "! Please download manually into the directory /opt/hashcat-deps/tmp"
+  echo "! Please manually download all the above dependencies to the hashcat-deps/tmp/ directory"
   exit 1
 fi
 
 ## installing needed packages
 for pkg in ${DEPS}; do
-  apt-get -y install ${pkg}
+
+  # check if the package is already installed
+  dpkg -s ${pkg} &>/dev/null
   if [ $? -ne 0 ]; then
-    echo "! failed to install ${pkg}"
-    exit 1
+    ## root check
+    if [ $(id -u) -ne 0 ]; then
+      echo "! Must be root to install the required package '${pkg}' with apt-get"
+      exit 1
+    fi
+
+    apt-get -y install ${pkg}
+    if [ $? -ne 0 ]; then
+      echo "! failed to install ${pkg}"
+      exit 1
+    fi
   fi
 done
 
 ## extract ADL SDK
-unzip ADL_SDK8.zip -d /opt/hashcat-deps/adl-sdk-8
+unzip ADL_SDK8.zip -d ${hashcat_deps_dir}/adl-sdk-8
 ret=$?
 
 if [[ ${ret} -ne 0 ]] && [[ ${ret} -ne 1 ]]; then
@@ -54,7 +67,7 @@ if [[ ${ret} -ne 0 ]] && [[ ${ret} -ne 1 ]]; then
   exit 1
 fi
 
-rm -rf /opt/hashcat-deps/adl-sdk && ln -s /opt/hashcat-deps/adl-sdk-8 /opt/hashcat-deps/adl-sdk
+rm -rf ${hashcat_deps_dir}/adl-sdk && ln -s ${hashcat_deps_dir}/adl-sdk-8 ${hashcat_deps_dir}/adl-sdk
 
 if [ $? -ne 0 ]; then
   echo "! failed to setup ADL SDK link"
@@ -62,7 +75,7 @@ if [ $? -ne 0 ]; then
 fi
 
 ## extract NVAPI
-unzip R352-developer.zip -d /opt/hashcat-deps/
+unzip R352-developer.zip -d ${hashcat_deps_dir}
 ret=$?
 
 if [[ ${ret} -ne 0 ]] && [[ ${ret} -ne 1 ]]; then
@@ -72,7 +85,7 @@ fi
 
 ## install CUDA SDK
 chmod +x cuda_7.5.18_linux.run && \
-./cuda_7.5.18_linux.run -toolkit -silent -override --toolkitpath=/opt/hashcat-deps/cuda-7.5
+./cuda_7.5.18_linux.run -toolkit -silent -override --toolkitpath=${hashcat_deps_dir}/cuda-7.5
 
 if [ $? -ne 0 ]; then
   echo "! failed to install CUDA SDK"
@@ -82,14 +95,14 @@ fi
 ## install NVIDIA Driver
 chmod +x NVIDIA-Linux-x86_64-352.21.run && \
 ./NVIDIA-Linux-x86_64-352.21.run -x && \
-mv NVIDIA-Linux-x86_64-352.21 /opt/hashcat-deps/ && \
-cd /opt/hashcat-deps/NVIDIA-Linux-x86_64-352.21 && \
+mv NVIDIA-Linux-x86_64-352.21 ${hashcat_deps_dir}/ && \
+cd ${hashcat_deps_dir}/NVIDIA-Linux-x86_64-352.21 && \
 ln -s libnvidia-ml.so.352.21 libnvidia-ml.so && \
 ln -s libcuda.so.352.21 libcuda.so && \
 cd 32 && \
 ln -s libnvidia-ml.so.352.21 libnvidia-ml.so && \
 ln -s libcuda.so.352.21 libcuda.so && \
-cd /opt/hashcat-deps/tmp
+cd ${hashcat_deps_dir}/tmp
 
 if [ $? -ne 0 ]; then
   echo "! failed to install NVIDIA Driver"
@@ -98,7 +111,7 @@ fi
 
 ## install NVIDIA GPU Deployment Kit
 chmod +x gdk_linux_amd64_352_55_release.run && \
-./gdk_linux_amd64_352_55_release.run --silent --installdir=/opt/hashcat-deps/nvidia-gdk
+./gdk_linux_amd64_352_55_release.run --silent --installdir=${hashcat_deps_dir}/nvidia-gdk
 
 if [ $? -ne 0 ]; then
   echo "! failed to install NVIDIA GPU Deployment Kit"
@@ -106,15 +119,15 @@ if [ $? -ne 0 ]; then
 fi
 
 ## extract AMD APP SDK
-tar xjf AMDAPPSDK-3.0-linux64.tar.bz2 && \
-./AMD-APP-SDK-v3.0.130.135-GA-linux64.sh --noexec --target /opt/hashcat-deps/amd-app-sdk-v3.0.130.135
+tar xjf AMD-APP-SDKInstaller-v3.0.130.135-GA-linux64.tar.bz2 && \
+./AMD-APP-SDK-v3.0.130.135-GA-linux64.sh --noexec --target ${hashcat_deps_dir}/amd-app-sdk-v3.0.130.135
 
 if [ $? -ne 0 ]; then
   echo "! failed to extract AMD APP SDK"
   exit 1
 fi
 
-rm -rf /opt/hashcat-deps/amd-app-sdk && ln -s /opt/hashcat-deps/amd-app-sdk-v3.0.130.135 /opt/hashcat-deps/amd-app-sdk
+rm -rf ${hashcat_deps_dir}/amd-app-sdk && ln -s ${hashcat_deps_dir}/amd-app-sdk-v3.0.130.135 ${hashcat_deps_dir}/amd-app-sdk
 
 if [ $? -ne 0 ]; then
   echo "! failed to setup ADL SDK link"