[vte] build: Use -fno-semantic-interposition if available

[Christian Persch <chpe src gnome org>]

commit 3c192eca2d03426760171806e13205e6c676edf3
Author: Christian Persch <chpe gnome org>
Date:   Mon Jan 26 11:04:53 2015 +0100

    build: Use -fno-semantic-interposition if available

 configure.ac |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index dda8cda..3d2cbb4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -133,6 +133,7 @@ CC_CHECK_FLAGS_APPEND([AM_CFLAGS],[CFLAGS],[ \
   -fno-strict-aliasing \
   -fstack-protector \
   -fstack-protector-strong \
+  -fno-semantic-interposition \
   -Wno-deprecated-declarations \
 ])