diff -rup a/configure b/configure

--- a/configure	2016-05-31 07:35:55.000000000 -0400

+++ b/configure	2016-08-25 18:50:02.732609963 -0400

@@ -2585,6 +2585,10 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu

+CFLAGS=`echo "" "$CFLAGS" | sed 's/ -m64 / /g'`

+CXXFLAGS=`echo "" "$CXXFLAGS" | sed 's/ -m64 / /g'`

+

+

 ac_aux_dir=

 for ac_dir in . "$srcdir"/.; do

   if test -f "$ac_dir/install-sh"; then

diff -rup a/configure.ac b/configure.ac

--- a/configure.ac	2016-05-26 10:44:13.000000000 -0400

+++ b/configure.ac	2016-08-25 18:49:37.072638055 -0400

@@ -33,6 +33,10 @@ AC_PREREQ(2.57)

 AC_INIT([strace],

 	m4_esyscmd([./git-version-gen .tarball-version]),

 	[strace-devel@lists.sourceforge.net])

+

+CFLAGS=`echo "" "$CFLAGS" | sed 's/ -m64 / /g'`

+CXXFLAGS=`echo "" "$CXXFLAGS" | sed 's/ -m64 / /g'`

+

 AC_CONFIG_SRCDIR([strace.c])

 AC_CONFIG_AUX_DIR([.])

 AC_CONFIG_HEADERS([config.h])