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authorAlan Coopersmith <alan.coopersmith@oracle.com>2013-05-01 23:58:39 -0700
committerAlan Coopersmith <alan.coopersmith@oracle.com>2013-05-23 08:13:25 -0700
commit59b8e1388a687f871831ac5a9e0ac11de75e2516 (patch)
treed2da4d43b4914089efdde02ace9613b41a937427 /configure.ac
parent5d43d4914dcabb6de69859567061e99300e56ef4 (diff)
Use _XEatDataWords to avoid overflow of rep.length bit shifting
rep.length is a CARD32, so rep.length << 2 could overflow in 32-bit builds Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com> Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Diffstat (limited to 'configure.ac')
-rw-r--r--configure.ac6
1 files changed, 6 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac
index 8dbca38..f5ef1e2 100644
--- a/configure.ac
+++ b/configure.ac
@@ -31,6 +31,12 @@ PKG_CHECK_MODULES(XI, [xproto >= 7.0.13] [x11 >= 1.4.99.1] [xextproto >= 7.0.3]
# CFLAGS only for PointerBarrier typedef
PKG_CHECK_MODULES(XFIXES, [xfixes >= 5])
+# Check for _XEatDataWords function that may be patched into older Xlib releases
+SAVE_LIBS="$LIBS"
+LIBS="$XI_LIBS"
+AC_CHECK_FUNCS([_XEatDataWords])
+LIBS="$SAVE_LIBS"
+
# Check for xmlto and asciidoc for man page conversion
# (only needed by people building tarballs)
if test "$have_xmlto" = yes && test "$have_asciidoc" = yes; then