[CMake][dunecontrol] Makes compiler and compiler flags visible to CMake.

CMake honors the familar compiler flags if they are exported. This patch
extracts them from CONFIGURE_FLAGS and exports them to cmake by putting
them in from of the cmake call.

bin/dunecontrol

@@ -569,12 +569,21 @@ run_default_configure () {
     PARAMS="$PARAMS ACLOCAL_AMFLAGS=\"$ACLOCAL_FLAGS\""
 
     if test "x$LOCAL_USE_CMAKE" = "xyes"; then
+      # we have to export the compiler and compiler flags
+      # such that they are honored by cmake.
+      flags="CXX CC CXXFLAGS CFLAGS CPPFLAGS LDFLAGS F77 FFLAGS FLIBS FC FCFLAGS FCLIBS LIBS"
+      for i in  $flags; do
+        cflags=`echo $PARAMS | sed "s/.*\($i=\"[^\"]*\"\|$i=[^\s^ ]*\).*/\1/"`
+        if test "$cflags" != "$PARAMS"; then
+            PREPARAMS="$PREPARAMS $cflags"
+        fi
+      done
       test -d "$BUILDDIR" || mkdir "$BUILDDIR"
       SRCDIR="$PWD"
       cd "$BUILDDIR"
       echo `pwd`
-      echo "cmake -DBUILD_SHARED_LIBS:BOOL=OFF -DCMAKE_MODULE_PATH=\"$CMAKE_MODULE_PATH\" $CMAKE_PARAMS $CMAKE_FLAGS $SRCDIR"
-      eval cmake "-DBUILD_SHARED_LIBS:BOOL=OFF -DCMAKE_MODULE_PATH=\"$CMAKE_MODULE_PATH\" $CMAKE_PARAMS $CMAKE_FLAGS $SRCDIR" || exit 1
+      echo "$PREPARAMS cmake -DBUILD_SHARED_LIBS:BOOL=OFF -DCMAKE_MODULE_PATH=\"$CMAKE_MODULE_PATH\" $CMAKE_PARAMS $CMAKE_FLAGS $SRCDIR"
+      eval $PREPARAMS cmake "-DBUILD_SHARED_LIBS:BOOL=OFF -DCMAKE_MODULE_PATH=\"$CMAKE_MODULE_PATH\" $CMAKE_PARAMS $CMAKE_FLAGS $SRCDIR" || exit 1
     else
       echo ./configure "$PARAMS"
       # create build directory of requested