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-rw-r--r--ChangeLog5
-rw-r--r--configure.in5
2 files changed, 10 insertions, 0 deletions
diff --git a/ChangeLog b/ChangeLog
index b95e24657e..2ecf03c9d1 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Wed Jun 13 17:51:05 2012 Nobuyoshi Nakada <nobu@ruby-lang.org>
+
+ * configure.in: cygwin needs C99 for some stuff, e.g.,
+ pthread_attr_setstacksize, sched_yield.
+
Wed Jun 13 17:50:43 2012 Nobuyoshi Nakada <nobu@ruby-lang.org>
* Makefile.in (.c.i): add warnflags to make the result consistent with
diff --git a/configure.in b/configure.in
index ab53e8a2c2..e94b3d6309 100644
--- a/configure.in
+++ b/configure.in
@@ -617,6 +617,11 @@ if test "$GCC" = yes; then
# comments. We bypass ANSI C mode for them. Otherwise
# extension libs cannot include those headers.
],
+ [cygwin*], [
+ # needs C99 to isinf() and so on
+ RUBY_APPEND_OPTION(warnflags, -ansi -std=c99)
+ RUBY_APPEND_OPTION(rb_cv_warnflags, -ansi -std=c99)
+ ],
[
# ANSI (no XCFLAGS because this is C only)
RUBY_TRY_CFLAGS(-ansi -std=iso9899:199409, [