Don't check stderr in configure tests as this causes them to fail when
unexpected warnings are emitted, such as deprecation of i386 in Xcode 10.

https://gitlab.freedesktop.org/cairo/cairo/-/issues/121

Updated version of this patch:

https://bugs.freedesktop.org/show_bug.cgi?id=30910#c6
--- configure.orig	2023-02-03 20:33:05.000000000 -0600
+++ configure	2023-02-03 20:38:32.000000000 -0600
@@ -14998,7 +14998,7 @@
 rm -f core conftest.err conftest.$ac_objext \
     conftest$ac_exeext conftest.$ac_ext
 
-	if test "x$cairo_cc_stderr" != "x"; then
+	if false; then
 		cairo_cc_flag=no
 	fi
 
@@ -15045,7 +15045,7 @@
 rm -f core conftest.err conftest.$ac_objext \
     conftest$ac_exeext conftest.$ac_ext
 
-	if test "x$cairo_cc_stderr" != "x"; then
+	if false; then
 		cairo_cc_flag=no
 	fi
 
@@ -15096,7 +15096,7 @@
 rm -f core conftest.err conftest.$ac_objext \
     conftest$ac_exeext conftest.$ac_ext
 
-	if test "x$cairo_cc_stderr" != "x"; then
+	if false; then
 		cairo_cc_flag=no
 	fi
 
@@ -15143,7 +15143,7 @@
 rm -f core conftest.err conftest.$ac_objext \
     conftest$ac_exeext conftest.$ac_ext
 
-	if test "x$cairo_cc_stderr" != "x"; then
+	if false; then
 		cairo_cc_flag=no
 	fi
 
@@ -15212,7 +15212,7 @@
 rm -f core conftest.err conftest.$ac_objext \
     conftest$ac_exeext conftest.$ac_ext
 
-	if test "x$cairo_cc_stderr" != "x"; then
+	if false; then
 		cairo_cc_flag=no
 	fi
 
@@ -15268,7 +15268,7 @@
 rm -f core conftest.err conftest.$ac_objext \
     conftest$ac_exeext conftest.$ac_ext
 
-	if test "x$cairo_cc_stderr" != "x"; then
+	if false; then
 		cairo_cc_flag=no
 	fi
 
@@ -16852,7 +16852,7 @@
 rm -f core conftest.err conftest.$ac_objext \
     conftest$ac_exeext conftest.$ac_ext
 
-	if test "x$cairo_cc_stderr" != "x"; then
+	if false; then
 		cairo_cc_flag=no
 	fi
 
@@ -16899,7 +16899,7 @@
 rm -f core conftest.err conftest.$ac_objext \
     conftest$ac_exeext conftest.$ac_ext
 
-	if test "x$cairo_cc_stderr" != "x"; then
+	if false; then
 		cairo_cc_flag=no
 	fi
 
@@ -27730,7 +27730,7 @@
 rm -f core conftest.err conftest.$ac_objext \
     conftest$ac_exeext conftest.$ac_ext
 
-	if test "x$cairo_cc_stderr" != "x"; then
+	if false; then
 		cairo_cc_flag=no
 	fi
 
@@ -27849,7 +27849,7 @@
 rm -f core conftest.err conftest.$ac_objext \
     conftest$ac_exeext conftest.$ac_ext
 
-	if test "x$cairo_cc_stderr" != "x"; then
+	if false; then
 		cairo_cc_flag=no
 	fi
 
@@ -27930,7 +27930,7 @@
 rm -f core conftest.err conftest.$ac_objext \
     conftest$ac_exeext conftest.$ac_ext
 
-	if test "x$cairo_cc_stderr" != "x"; then
+	if false; then
 		cairo_cc_flag=no
 	fi