diff options
Diffstat (limited to 'lib/mkmf.rb')
| -rw-r--r-- | lib/mkmf.rb | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/lib/mkmf.rb b/lib/mkmf.rb index 3a84aba370..04b5f26a5e 100644 --- a/lib/mkmf.rb +++ b/lib/mkmf.rb @@ -812,13 +812,21 @@ SRC # You should use +have_var+ rather than +try_var+. def try_var(var, headers = nil, opt = "", &b) headers = cpp_include(headers) - try_compile(<<"SRC", opt, &b) + try_compile(<<"SRC", opt, &b) or #{headers} /*top*/ extern int t(void); #{MAIN_DOES_NOTHING 't'} int t(void) { const volatile void *volatile p; p = &(&#{var})[0]; return !p; } SRC + try_link(<<"SRC", opt, &b) +#{headers} +/*top*/ +extern int t(void); +#{MAIN_DOES_NOTHING 't'} +extern int #{var}; +int t(void) { const volatile void *volatile p; p = &(&#{var})[0]; return !p; } +SRC end # Returns whether or not the +src+ can be preprocessed with the C |