diff --git a/.drone.yml b/.drone.yml
index a7224036e..3df5f406a 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -59,11 +59,12 @@ steps:
   image: ubuntu:18.04
   environment:
     CC: gcc
-    CMAKE_FLAGS: '-DDYNAMIC_ARCH=1 -DTARGET=ARMV8 -DNUM_THREADS=32'
+    CXX: g++
+    CMAKE_FLAGS: '-DDYNAMIC_ARCH=1 -DTARGET=ARMV8 -DNUM_THREADS=32 -DNOFORTRAN=ON -DBUILD_WITHOUT_LAPACK=ON'
   commands:
     - echo "CMAKE_FLAGS:= $CMAKE_FLAGS"
     - apt-get update -y
-    - apt-get install -y make $CC gfortran perl cmake
+    - apt-get install -y make $CC $CXX g++ perl cmake
     - $CC --version
     - mkdir build && cd build
     - cmake $CMAKE_FLAGS ..
@@ -83,11 +84,12 @@ steps:
   image: ubuntu:18.04
   environment:
     CC: clang
-    CMAKE_FLAGS: '-DDYNAMIC_ARCH=1 -DTARGET=ARMV8 -DNUM_THREADS=32'
+    CXX: clang++
+    CMAKE_FLAGS: '-DDYNAMIC_ARCH=1 -DTARGET=ARMV8 -DNUM_THREADS=32 -DNOFORTRAN=ON -DBUILD_WITHOUT_LAPACK=ON'
   commands:
     - echo "CMAKE_FLAGS:= $CMAKE_FLAGS"
     - apt-get update -y
-    - apt-get install -y make $CC gfortran perl cmake
+    - apt-get install -y make $CC $CXX perl cmake
     - $CC --version
     - mkdir build && cd build
     - cmake $CMAKE_FLAGS ..