- add purely informational check of HOSTCXX

diff --git a/toolchain/dependencies/dependencies.sh b/toolchain/dependencies/dependencies.sh
index 47147a46d4e467b6b7c0a2305207c1bd5e2289c9..18970e92cf1b3bbee9d3eee6ebccfe1ca02a0e4a 100755 (executable)
--- a/toolchain/dependencies/dependencies.sh
+++ b/toolchain/dependencies/dependencies.sh
@@ -1,5 +1,5 @@
 #!/bin/sh
-
+# vi: set sw=4 ts=4:
 #set -x
 
 echo ""
@@ -175,6 +175,33 @@ echo "C compiler '$COMPILER'"
 echo "C compiler version '$COMPILER_VERSION':                  Ok"
 
 
+# check for host CXX
+CXXCOMPILER=$(which $HOSTCXX)
+if [ -z "$CXXCOMPILER" ] ; then
+       CXXCOMPILER=$(which c++)
+fi
+if [ -z "$CXXCOMPILER" ] ; then
+       echo "C++ Compiler installed:               FALSE"
+       /bin/echo -e "\nYou may have to install 'g++' on your build machine\n"
+       #exit 1
+fi
+if [ ! -z "$CXXCOMPILER" ] ; then
+       CXXCOMPILER_VERSION=$($CXXCOMPILER --version 2>&1 | head -n1 | $XSED -e 's/^.*(.CC) \([0-9\.]\)/\1/g' -e "s/[-\ ].*//g")
+       if [ -z "$CXXCOMPILER_VERSION" ] ; then
+               echo "c++ installed:                FALSE"
+               /bin/echo -e "\nYou may have to install 'g++' on your build machine\n"
+               #exit 1
+       fi
+
+       CXXCOMPILER_MAJOR=$(echo $CXXCOMPILER_VERSION | $XSED -e "s/\..*//g")
+       CXXCOMPILER_MINOR=$(echo $CXXCOMPILER_VERSION | $XSED -e "s/^$CXXCOMPILER_MAJOR\.//g" -e "s/\..*//g")
+       if [ $CXXCOMPILER_MAJOR -lt 3 -o $CXXCOMPILER_MAJOR -eq 2 -a $CXXCOMPILER_MINOR -lt 95 ] ; then
+               echo "You have g++ '$CXXCOMPILER_VERSION' installed.  g++ >= 2.95 is required"
+               exit 1
+       fi
+       echo "C++ compiler '$CXXCOMPILER'"
+       echo "C++ compiler version '$CXXCOMPILER_VERSION':                      Ok"
+fi
 
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