diff options
| -rwxr-xr-x | configure | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/configure b/configure index 39f2a1acd2..352a9c79c3 100755 --- a/configure +++ b/configure @@ -1289,6 +1289,35 @@ else error_exit "\"$cc\" either does not exist or does not work" fi +# Check that the C++ compiler exists and works with the C compiler +if has $cxx; then + cat > $TMPC <<EOF +int c_function(void); +int main(void) { return c_function(); } +EOF + + compile_object + + cat > $TMPC <<EOF +extern "C" { + int c_function(void); +} +int c_function(void) { return 42; } +EOF + + if (cc=$cxx do_cc $QEMU_CFLAGS -o $TMPE $TMPC $TMPO $LDFLAGS); then + # C++ compiler $cxx works ok with C compiler $cc + : + else + echo "C++ compiler $cxx does not work with C compiler $cc" + echo "Disabling C++ specific optional code" + cxx= + fi +else + echo "No C++ compiler available; disabling C++ specific optional code" + cxx= +fi + # Consult white-list to determine whether to enable werror # by default. Only enable by default for git builds z_version=`cut -f3 -d. $source_path/VERSION` |