diff --git a/.travis.yml b/.travis.yml
index 6ebb46106..e38a39427 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -65,13 +65,13 @@ matrix:
       os: osx
       osx_image: xcode9.4
       env:
-        - BUILD="mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=../toolchain/ios.toolchain.cmake -DIOS_PLATFORM=OS .. && make -j2"
+        - BUILD="mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/ios.toolchain.cmake -DIOS_PLATFORM=OS .. && make -j2"
 
     - name: "ios-iphonesimulator"
       os: osx
       osx_image: xcode9.4
       env:
-        - BUILD="mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=../toolchain/ios.toolchain.cmake -DIOS_PLATFORM=SIMULATOR .. && make -j2"
+        - BUILD="mkdir build && cd build && cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/ios.toolchain.cmake -DIOS_PLATFORM=SIMULATOR .. && make -j2"
 
 before_install:
   - eval "${BEFORE_BUILD}"
diff --git a/build.sh b/build.sh
index 64c2249f1..5ec8edab1 100755
--- a/build.sh
+++ b/build.sh
@@ -27,7 +27,7 @@ popd
 ##### linux of hisiv300 (forgot the chip name) toolchain with neon and openmp
 mkdir -p build-hisiv300-linux
 pushd build-hisiv300-linux
-cmake -DCMAKE_TOOLCHAIN_FILE=../toolchain/hisiv300.toolchain.cmake ..
+cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/hisiv300.toolchain.cmake ..
 make
 make install
 popd
@@ -35,7 +35,7 @@ popd
 ##### linux of hisiv500 (Hi3516CV200 and Hi3519V101) toolchain with neon and openmp
 mkdir -p build-hisiv500-linux
 pushd build-hisiv500-linux
-cmake -DCMAKE_TOOLCHAIN_FILE=../toolchain/hisiv500.toolchain.cmake ..
+cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/hisiv500.toolchain.cmake ..
 make
 make install
 popd
@@ -43,7 +43,7 @@ popd
 ##### linux of himix100 (Hi3559a) toolchain with neon and openmp
 mkdir -p build-himix100-linux
 pushd build-himix100-linux
-cmake -DCMAKE_TOOLCHAIN_FILE=../toolchain/himix100.toolchain.cmake ..
+cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/himix100.toolchain.cmake ..
 make
 make install
 popd
@@ -51,7 +51,7 @@ popd
 ##### linux of arm-linux-gnueabi toolchain
 mkdir -p build-arm-linux-gnueabi
 pushd build-arm-linux-gnueabi
-cmake -DCMAKE_TOOLCHAIN_FILE=../toolchain/arm-linux-gnueabi.toolchain.cmake ..
+cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/arm-linux-gnueabi.toolchain.cmake ..
 make
 make install
 popd
@@ -59,7 +59,7 @@ popd
 ##### linux of arm-linux-gnueabihf toolchain
 mkdir -p build-arm-linux-gnueabihf
 pushd build-arm-linux-gnueabihf
-cmake -DCMAKE_TOOLCHAIN_FILE=../toolchain/arm-linux-gnueabihf.toolchain.cmake ..
+cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/arm-linux-gnueabihf.toolchain.cmake ..
 make
 make install
 popd
@@ -67,7 +67,7 @@ popd
 ##### linux for aarch64-linux-gnu toolchain
 mkdir -p build-aarch64-linux-gnu
 pushd build-aarch64-linux-gnu
-cmake -DCMAKE_TOOLCHAIN_FILE=../toolchain/aarch64-linux-gnu.toolchain.cmake ..
+cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/aarch64-linux-gnu.toolchain.cmake ..
 make
 make install
 popd
@@ -75,7 +75,7 @@ popd
 ##### linux host system with gcc/g++
 mkdir -p build-host-gcc-linux
 pushd build-host-gcc-linux
-cmake -DCMAKE_TOOLCHAIN_FILE=../toolchain/host.gcc.toolchain.cmake ..
+cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/host.gcc.toolchain.cmake ..
 make
 make install
 popd
@@ -83,7 +83,7 @@ popd
 ##### ios armv7 arm64
 mkdir -p build-ios
 pushd build-ios
-cmake -DCMAKE_TOOLCHAIN_FILE=../toolchain/iosxc.toolchain.cmake ..
+cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/iosxc.toolchain.cmake ..
 make
 make install
 popd
@@ -91,7 +91,7 @@ popd
 ##### ios simulator i386 x86_64
 mkdir -p build-ios-sim
 pushd build-ios-sim
-cmake -DCMAKE_TOOLCHAIN_FILE=../toolchain/iossimxc.toolchain.cmake ..
+cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/iossimxc.toolchain.cmake ..
 make
 make install
 popd
diff --git a/toolchain/aarch64-linux-gnu.toolchain.cmake b/toolchains/aarch64-linux-gnu.toolchain.cmake
similarity index 100%
rename from toolchain/aarch64-linux-gnu.toolchain.cmake
rename to toolchains/aarch64-linux-gnu.toolchain.cmake
diff --git a/toolchain/arm-linux-gnueabi.toolchain.cmake b/toolchains/arm-linux-gnueabi.toolchain.cmake
similarity index 100%
rename from toolchain/arm-linux-gnueabi.toolchain.cmake
rename to toolchains/arm-linux-gnueabi.toolchain.cmake
diff --git a/toolchain/arm-linux-gnueabihf.toolchain.cmake b/toolchains/arm-linux-gnueabihf.toolchain.cmake
similarity index 100%
rename from toolchain/arm-linux-gnueabihf.toolchain.cmake
rename to toolchains/arm-linux-gnueabihf.toolchain.cmake
diff --git a/toolchain/himix100.toolchain.cmake b/toolchains/himix100.toolchain.cmake
similarity index 100%
rename from toolchain/himix100.toolchain.cmake
rename to toolchains/himix100.toolchain.cmake
diff --git a/toolchain/hisiv300.toolchain.cmake b/toolchains/hisiv300.toolchain.cmake
similarity index 100%
rename from toolchain/hisiv300.toolchain.cmake
rename to toolchains/hisiv300.toolchain.cmake
diff --git a/toolchain/hisiv500.toolchain.cmake b/toolchains/hisiv500.toolchain.cmake
similarity index 100%
rename from toolchain/hisiv500.toolchain.cmake
rename to toolchains/hisiv500.toolchain.cmake
diff --git a/toolchain/host.gcc.toolchain.cmake b/toolchains/host.gcc.toolchain.cmake
similarity index 100%
rename from toolchain/host.gcc.toolchain.cmake
rename to toolchains/host.gcc.toolchain.cmake
diff --git a/toolchain/ios.toolchain.cmake b/toolchains/ios.toolchain.cmake
similarity index 100%
rename from toolchain/ios.toolchain.cmake
rename to toolchains/ios.toolchain.cmake
diff --git a/toolchain/iossimxc.toolchain.cmake b/toolchains/iossimxc.toolchain.cmake
similarity index 100%
rename from toolchain/iossimxc.toolchain.cmake
rename to toolchains/iossimxc.toolchain.cmake
diff --git a/toolchain/iosxc.toolchain.cmake b/toolchains/iosxc.toolchain.cmake
similarity index 100%
rename from toolchain/iosxc.toolchain.cmake
rename to toolchains/iosxc.toolchain.cmake
diff --git a/toolchain/pi3.toolchain.cmake b/toolchains/pi3.toolchain.cmake
similarity index 100%
rename from toolchain/pi3.toolchain.cmake
rename to toolchains/pi3.toolchain.cmake