diff options
| author | kosaki <kosaki@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2013-03-16 05:06:32 +0000 |
|---|---|---|
| committer | kosaki <kosaki@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2013-03-16 05:06:32 +0000 |
| commit | 2e544471ae719757a0fec2a686bdeb7a97540c90 (patch) | |
| tree | 0704082acc89152201a1bca248c250838eff4fcf /configure.in | |
| parent | e1807e59951d4280895dd3f2c2fc4a774ad3fe6a (diff) | |
* configure.in (_FORTIFY_SOURCE): added a few comments.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@39771 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'configure.in')
| -rw-r--r-- | configure.in | 4 |
1 files changed, 4 insertions, 0 deletions
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 |