* lib/mkmf.rb (try_compile): pass the given werror flag to try_do
to check if stderr is empty.
* lib/mkmf.rb (try_cflags, try_ldflags): default werror to true.
* win32/Makefile.sub (WERRORFLAG): remove useless option. VC does
not make warnings of unknown command option an error.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@50215 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
ruby itself (including numeric.c) is built with strict compile
options including -std=iso9899:1999, but ext/date is not.
By the way -std=iso9899:1999 is not only a warning option but also
changes behavior like MACRO definitions for example INFINITY.
gcc on Solaris affect this.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@50104 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* ext/date/date_core.c (DateTimeData): should not use bare 'long long'
and 'long double', which are not defined by C89.
* ext/date/date_core.c (dt_lite_plus): get rid of overflow at casting
down double to integer.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@31039 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
