diff --git a/build.sh b/build.sh
index 095c5c26168d817edf8af8339b026f965a37f0eb..cf3f3f2e7c46e19f96ab0d23917c5fadfbbb3fd0 100755
--- a/build.sh
+++ b/build.sh
@@ -21,6 +21,15 @@ MHERE="$DIR"
 
 export SOURCES=${MHERE}/../
 
+case "${UNAME_OUT}" in
+    Linux*)     MACHINE=Linux;;
+    Darwin*)    MACHINE=Mac;;
+    CYGWIN*)    MACHINE=Cygwin;;
+    MINGW*)     MACHINE=MinGw;;
+    MSYS_NT*)   MACHINE=Git;;
+    *)          MACHINE="UNKNOWN:${UNAME_OUT}"
+esac
+
 
 #validate input params
 . ${MHERE}/validate.sh
@@ -83,7 +92,14 @@ fi
 mkdir -p ${BUILD_DIR}/build
 mkdir -p ${BUILD_DIR}/dist
 
-echo "Build [${BUILD_TYPE}] binaries for [$BUILD_TARGET] in [${BUILD_DIR}] on $(nproc) threads"
+if [ "$MACHINE" != "Mac" ]
+then
+  NPROC="$(nproc)"
+else
+  NPROC="$(sysctl -n hw.ncpu)"
+fi
+
+echo "Build [${BUILD_TYPE}] binaries for [$BUILD_TARGET] in [${BUILD_DIR}] on $NPROC threads"
 echo "with options: [${BUILD_OPTIONS[@]}]"
 
 cd ${BUILD_DIR}/build
@@ -94,5 +110,5 @@ echo "${CMAKE[@]} ${MHERE}/../ -DCREATE_DEFAULT_CONFIG=OFF ${BUILD_OPTIONS[@]}"
 #echo $HERE
 export INSTALL_ROOT=${BUILD_DIR}/dist
 "${CMAKE[@]}" ${MHERE}/../ -DCREATE_DEFAULT_CONFIG=OFF ${BUILD_OPTIONS[@]}  
-"${MAKE[@]}" -j$(nproc)
+"${MAKE[@]}" -j $NPROC
 "${MAKE[@]}" install DESTDIR=${INSTALL_ROOT}
diff --git a/targets/osx.sh b/targets/osx.sh
index 067a0018f0791482022116bec64f970fabcc3d6f..5d8305664ebba99972338f80b04b425b3094e2ec 100644
--- a/targets/osx.sh
+++ b/targets/osx.sh
@@ -22,34 +22,60 @@ RDIR=$( dirname "$SOURCE" )
 DIR=$( cd -P "$( dirname "$SOURCE" )" >/dev/null 2>&1 && pwd )
 HERE="$DIR"
 
+UNAME_OUT="$(uname -s)"
+case "${UNAME_OUT}" in
+    Linux*)     MACHINE=Linux;;
+    Darwin*)    MACHINE=Mac;;
+    CYGWIN*)    MACHINE=Cygwin;;
+    MINGW*)     MACHINE=MinGw;;
+    MSYS_NT*)   MACHINE=Git;;
+    *)          MACHINE="UNKNOWN:${UNAME_OUT}"
+esac
 
-
-if [ -z "$OSXCROSS_QT_ROOT" ]
+if [ "$MACHINE" != "Mac" ]
 then
-      echo "Please, export OSXCROSS_QT_ROOT variable, pointing to Qt-builds locations for osxcross environment"
-      exit 255
-fi
+  echo "Host is $MACHINE, use osx-cross build target"
+  if [ -z "$OSXCROSS_QT_ROOT" ]
+  then
+        echo "Please, export OSXCROSS_QT_ROOT variable, pointing to Qt-builds locations for osxcross environment"
+        exit 255
+  fi
 
 
-if [ -z "$OSXCROSS_QT_VERSION" ]
-then
-      echo "Please, export OSXCROSS_QT_VERSION variable, scpecifying Qt-version in OSXCROSS_QT_ROOT directory."
-      exit 255
-fi
+  if [ -z "$OSXCROSS_QT_VERSION" ]
+  then
+        echo "Please, export OSXCROSS_QT_VERSION variable, scpecifying Qt-version in OSXCROSS_QT_ROOT directory."
+        exit 255
+  fi
+
+  echo "Using QT ${OSXCROSS_QT_VERSION} from ${OSXCROSS_QT_ROOT}/${OSXCROSS_QT_VERSION}"
 
-echo "Using QT ${OSXCROSS_QT_VERSION} from ${OSXCROSS_QT_ROOT}/${OSXCROSS_QT_VERSION}"
+  [ ! -d ${OSXCROSS_QT_ROOT}/${OSXCROSS_QT_VERSION} ] && { echo "No QT ${OSXCROSS_QT_VERSION} found in ${OSXCROSS_QT_ROOT}" && exit 255; }
 
-[ ! -d ${OSXCROSS_QT_ROOT}/${OSXCROSS_QT_VERSION} ] && { echo "No QT ${OSXCROSS_QT_VERSION} found in ${OSXCROSS_QT_ROOT}" && exit 255; }
+  $(${OSXCROSS_ROOT}/bin/osxcross-conf)
 
-$(${OSXCROSS_ROOT}/bin/osxcross-conf)
 
+  export OSXCROSS_HOST=x86_64-apple-darwin20.4
+  CMAKE=(cmake -DCMAKE_TOOLCHAIN_FILE=${OSXCROSS_ROOT}/toolchain.cmake)
 
-export OSXCROSS_HOST=x86_64-apple-darwin20.4
-CMAKE=(cmake -DCMAKE_TOOLCHAIN_FILE=${OSXCROSS_ROOT}/toolchain.cmake)
+  ##everything else can be done by default make
+  MAKE=(make)
 
-##everything else can be done by default make
-MAKE=(make)
+  
+else
+    echo "Host is $MACHINE, use native build toolchain"
+    if [ -f "/Users/$USER/Qt/Tools/CMake/CMake.app/Contents/bin/cmake" ] 
+    then
+      CMAKE=(/Users/$USER/Qt/Tools/CMake/CMake.app/Contents/bin/cmake )
 
-echo "OSXcross target"
+      echo "Found cmake at $CMAKE, using it"
+    else
+      echo "Not found cmake at default qt location, asuming it is in PATH"
+      CMAKE=(cmake)
+    fi
+
+    ##everything else can be done by default make
+    MAKE=(make)
+fi
 echo "CMAKE=${CMAKE[@]}"
 echo "MAKE=${MAKE[@]}"