MNT: Use default CUDA_HOME of /usr/local/cuda-X.Y, instead of $FSLDIR

config/buildSettings.mk

@@ -127,12 +127,12 @@ ifneq ($(shell which nvcc), )
 
   # We specifically use variable names "CUDA_VER"
   # and "CUDA_HOME" because they will be set in
-  # the conda-forge CUDA build environment (and
+  # the FSL CUDA docker image environments (and
   # will take precedence over these definitions
   # here when they are set).
   NVCC         ?= nvcc
-  CUDA_HOME    ?= ${FSLDIR}
   CUDA_VER     ?= $(shell nvcc --version | grep -Po "release \K[0-9\.]+")
+  CUDA_HOME    ?= /usr/local/cuda-${CUDA_VER}
   GENCODEFLAGS ?= $(shell ${FSLCONFDIR}/supportedGencodes.sh ${CUDA_VER})
 
   # We specify the compiler to use with -ccbin, as
@@ -177,6 +177,6 @@ ifneq ($(shell which nvcc), )
                  $(subst -lcurand,-lcurand_static,${CUDALIBS}))
   else
     NVCCFLAGS += --cudart=shared  --cudadevrt=static
-	_CUDALIBS += ${CUDALIBS}
+    _CUDALIBS += ${CUDALIBS}
   endif
 endif