we have gcc-11 now. Check version for more than 2 digits. (#79)

* we have gcc-11 now. Check version for more than 2 digits.

* version detection as well - And support c++ 11 by default

setup_environment

@@ -44,7 +44,8 @@ if [ $? = 1 ]; then
 	return 1;
 fi
 
-CC_VERSION=`gcc --version | head -1 | awk '{for(i=1;i<=NF;i++){ if(match($i,/^[0-9]\.[0-9]\.[0-9]$/))  {print $i; exit 0}}}'`
+CC_VERSION=$(gcc --version | head -1 | awk '{for(i=1;i<=NF;i++){ if(match($i,/^[0-9]+\.[0-9]+\.[0-9]+$/)) {print $i; exit 0}}}')
+
 
 CUDA_VERSION_STRING=`$CUDA_INSTALL_PATH/bin/nvcc --version | awk '/release/ {print $5;}' | sed 's/,//'`;
 export CUDA_VERSION_NUMBER=`echo $CUDA_VERSION_STRING | sed 's/\./ /' | awk '{printf("%02u%02u", 10*int($1), 10*$2);}'`

version_detection.mk

@@ -43,7 +43,7 @@ CUDA_VERSION_STRING:=$(shell $(CUDA_INSTALL_PATH)/bin/nvcc --version | awk '/rel
 CUDART_VERSION:=$(shell echo $(CUDA_VERSION_STRING) | sed 's/\./ /' | awk '{printf("%02u%02u", 10*int($$1), 10*$$2);}')
 
 # Detect GCC Version 
-CC_VERSION := $(shell gcc --version | head -1 | awk '{for(i=1;i<=NF;i++){ if(match($$i,/^[0-9]\.[0-9]\.[0-9]$$/))  {print $$i; exit 0 }}}')
+CC_VERSION := $(shell gcc --version | head -1 | awk '{for(i=1;i<=NF;i++){ if(match($$i,/^[0-9]+\.[0-9]+\.[0-9]+$$/)) {print $$i; exit 0 }}}')
 
 # Detect Support for C++11 (C++0x) from GCC Version 
-GNUC_CPP0X := $(shell gcc --version | perl -ne 'if (/gcc\s+\(.*\)\s+([0-9.]+)/){ if($$1 >= 4.3) {$$n=1} else {$$n=0;} } END { print $$n; }')
+GNUC_CPP0X := 1