Rework gcc build procedure. Add vpi build command.

1 files changed, 4 insertions, 0 deletions

diff --git a/configure b/configure
index 44839d38b..a00e8f998 100755
--- a/configure
+++ b/configure
@@ -149,6 +149,10 @@ if test $backend = gcc; then
 	echo "Need gcc version $gcc_version"
 	exit 1
     fi
+    if test "x$backtrace_lib" = x ; then
+	# Automatically use libbacktrace from gcc.
+	backtrace_lib="$prefix/$libdirsuffix/libbacktrace.a"
+    fi
 fi
 
 # For llvm backend, check llvm-config