MNT: Change supportedGencodes.sh so it is just passed the cuda version,

rather than install path. Ignore compiler/link flags from the environment

config/common/supportedGencodes.sh

 #!/bin/sh
 #
 # Returns a string with allowed -gencode value pairs
-# for the CUDA version given by a string that defines
-# where the CUDA installation resides. If the user
-# allows it can also return a "default" set of value
-# pairs that should give "something" for CUDA versions
-# 5.5--8.0.
-#
+# for the given CUDA version. If the user allows it
+# can also return a "default" set of value pairs that
+# should give "something" for CUDA versions 5.5--8.0.
 
 default_arch="-gencode arch=compute_20,code=sm_20 -gencode arch=compute_20,code=sm_21 -gencode arch=compute_30,code=sm_30 -gencode arch=compute_35,code=sm_35"
 
-instring=$1
+vn=$1
 default_allowed=$2
 
-if [ `echo $instring | grep cuda` ] 
-then
-    vn=`echo $instring | awk -F 'cuda-' '{print $2}'`
-    vn=`echo $vn | sed 's;/;;'`
-elif [ `echo $instring | grep CUDA` ]
-then
-    vn=`echo $instring | awk -F 'CUDA-' '{print $2}'`
-    vn=`echo $vn | sed 's;/;;'`
-else
-    if [ "$default_allowed" = default_allowed ]
-    then
+if [ "$default_allowed" = default_allowed ]; then
 	echo $default_arch
 	exit 0
-    else
+else
 	exit 1
-    fi
 fi
 
-if [ "$vn" = 5.5 ] 
+if [ "$vn" = 5.5 ]
 then
     echo "-gencode arch=compute_10,code=sm_10 -gencode arch=compute_11,code=sm_11 -gencode arch=compute_12,code=sm_12 -gencode arch=compute_13,code=sm_13 -gencode arch=compute_20,code=sm_20 -gencode arch=compute_20,code=sm_21 -gencode arch=compute_30,code=sm_30 -gencode arch=compute_35,code=sm_35"
     exit 0
@@ -71,12 +57,4 @@ elif [ "$vn" = 10.0 ]
 then
     echo "-gencode arch=compute_30,code=sm_30 -gencode arch=compute_32,code=sm_32 -gencode arch=compute_35,code=sm_35 -gencode arch=compute_37,code=sm_37 -gencode arch=compute_50,code=sm_50 -gencode arch=compute_52,code=sm_52 -gencode arch=compute_53,code=sm_53 -gencode arch=compute_60,code=sm_60 -gencode arch=compute_61,code=sm_61 -gencode arch=compute_62,code=sm_62 -gencode arch=compute_70,code=sm_70 -gencode arch=compute_72,code=sm_72 -gencode arch=compute_75,code=sm_75"
     exit 0
-else
-    if [ "$default_allowed" = default_allowed ]
-    then
-	echo $default_arch
-	exit 0
-    else
-	exit 1
-    fi
 fi

config/common/vars.mk

@@ -51,10 +51,10 @@ INCFLAGS = ${USRINCFLAGS} -I. -I${DEVINCDIR} -I${INCDIR}
 # Final compiler/linker flags
 #############################
 
-# Honour any flags provided by the environment
-CFLAGS   ?=
-CXXFLAGS ?=
-LDFLAGS  ?=
+# Ignore flags provided by the environment
+CFLAGS   =
+CXXFLAGS =
+LDFLAGS  =
 
 # All projects must use these flags for
 # compilation/linking, using the form: