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Diffstat (limited to 'configure.in')
| -rw-r--r-- | configure.in | 5 |
1 files changed, 5 insertions, 0 deletions
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, [ |