Hi,
In autoconf-2.69/lib/autoconf/go.m4, two of the test Go programs do the
following to open a file for output:
f, err := os.Open("conftest.out", os.O_CREATE|os.O_WRONLY, 0777)
However, os.Open has changed in recent versions of Go. In Go 1 as
implemented in GCC 4.7, it only takes one argument. Compare:
http://web.archive.org/web/20100210113321/http://golang.org/pkg/os/#File.Open
http://web.archive.org/web/20110520214350/http://golang.org/pkg/os/#File.Open
So currently autoconf-2.69's testsuite fails on a machine with GCC 4.7:
the go.at test finds gccgo but can't compile anything with it. It works
if you change both of those calls to do:
f, err := os.Create("conftest.out")
(e.g. with the attached patch) but that then won't work with older
versions of GCC. I'm not sure what the best fix would be here.
Thanks,
--
Adam Sampson <a...@offog.org> <http://offog.org/>
os.Open doesn't exist in multi-argument form in recent versions of Go.
diff -x config.log -x config.status -ru tmp/autoconf-2.69/lib/autoconf/go.m4
work/autoconf-2.69/lib/autoconf/go.m4
--- tmp/autoconf-2.69/lib/autoconf/go.m4 2012-01-21 13:46:39.000000000
+0000
+++ work/autoconf-2.69/lib/autoconf/go.m4 2012-04-26 12:55:17.535998327
+0100
@@ -61,7 +61,7 @@
# Produce source that performs I/O.
m4_define([_AC_LANG_IO_PROGRAM(Go)],
[AC_LANG_PROGRAM([import ( "fmt"; "os" )],
-[f, err := os.Open("conftest.out", os.O_CREATE|os.O_WRONLY, 0777)
+[f, err := os.Create("conftest.out")
if err != nil {
fmt.Println(err)
os.Exit(1)
@@ -107,7 +107,7 @@
"os"
)
],
-[f, err := os.Open("conftest.val", os.O_CREATE|os.O_WRONLY, 0777)
+[f, err := os.Create("conftest.val")
if err != nil {
os.Exit(1)
}
