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| -rw-r--r-- | ChangeLog | 4 | ||||
| -rw-r--r-- | configure.in | 4 |
2 files changed, 8 insertions, 0 deletions
@@ -1,3 +1,7 @@ +Fri Mar 15 14:45:02 2013 KOSAKI Motohiro <kosaki.motohiro@gmail.com> + + * configure.in (_FORTIFY_SOURCE): added a few comments. + Fri Mar 15 14:17:55 2013 KOSAKI Motohiro <kosaki.motohiro@gmail.com> * thread_pthread.c (numberof): renamed from ARRAY_SIZE() because diff --git a/configure.in b/configure.in index d166664a7f..89422b4f72 100644 --- a/configure.in +++ b/configure.in @@ -684,6 +684,10 @@ if test "$GCC" = yes; then test "${debugflags+set}" || {RUBY_TRY_CFLAGS(-g3, [debugflags=-g3])} # -D_FORTIFY_SOURCE + # When defined _FORTIFY_SOURCE, glibc enables some additional sanity + # argument check. The performance drop is very little and Ubuntu enables + # _FORTIFY_SOURCE=2 by default. So, let's support it for protecting us from + # a mistake of silly C extensions. RUBY_TRY_CFLAGS(-D_FORTIFY_SOURCE=2, [RUBY_APPEND_OPTION(XCFLAGS, -D_FORTIFY_SOURCE=2)]) # -fstack-protector |