* file.c: include sys/sysmacros.h for ArchLinux which deprecated
use of major() and minor() in sys/types.h.
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* configure.in (ac_cv_func_round): round(3) in x86_64-w64-mingw32
is not accurate in an edge case. [ruby-core:77794] [Bug #12878]
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* configure.in (RUBY_APPEND_OPTION, RUBY_PREPEND_OPTION): expand
the option to be appended/prepended when matching, as well as
RUBY_APPEND_OPTIONS and RUBY_PREPEND_OPTIONS.
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* configure.in (DLDFLAGS): append --compress-debug-sections=zlib
if available, which reduces the size of LIBRUBY_SO by half or
more.
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actually check its availability rather to check GCC's version.
* configure.in (WARN_UNUSED_RESULT): moved to here.
* configure.in (RUBY_FUNC_ATTRIBUTE): change function declaration
to return int rather than void, because it makes no sense for a
warn_unused_result attributed function to return void.
Funny thing however is that it also makes no sense for noreturn
attributed function to return int. So there is a fundamental
conflict between them. While I tested this, I confirmed both
GCC 6 and Clang 3.8 prefers int over void to correctly detect
necessary attributes under this setup. Maybe subject to change
in future.
* internal.h (UNINITIALIZED_VAR): renamed to MAYBE_UNUSED, then
moved to configure.in for the same reason we move
WARN_UNUSED_RESULT.
* configure.in (MAYBE_UNUSED): moved to here.
* internal.h (__has_attribute): deleted, because it has no use now.
* string.c (rb_str_enumerate_lines): refactor macro rename.
* string.c (rb_str_enumerate_bytes): ditto.
* string.c (rb_str_enumerate_chars): ditto.
* string.c (rb_str_enumerate_codepoints): ditto.
* thread.c (do_select): ditto.
* vm_backtrace.c (rb_debug_inspector_open): ditto.
* vsnprintf.c (BSD_vfprintf): ditto.
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* configure.in, include/ruby/defines.h (RUBY_USE_SETJMPEX):
include setjmpex.h only when using setjmpex() for RUBY_SETJMP.
the header of mingw32 overrides setjmp() by setjmpex().
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* missing/crypt.h (struct crypt_data): remove unnecessary member
"initialized".
* missing/crypt.c (des_setkey_r): nothing to be initialized in
crypt_data.
* configure.in (struct crypt_data): check for "initialized" in
struct crypt_data, which may be only in glibc, and isn't on AIX
at least.
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* configure.in: revert r55237. replace crypt, not crypt_r, and
check if crypt is broken more.
* missing/crypt.c: move crypt_r.c
* string.c (rb_str_crypt): use crypt_r if provided by the system.
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* configure.in (XCFLAGS): merge flags only for ruby itself from
ruby_cflags.
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-fexcess-precision=standard and -fp-model precise are set to this now.
* configure.in (cflags): use ruby_cflags.
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* configure.in (RUBY_CHECK_BUILTIN_SETJMP): declare t as NORETURN
to suppress warnings by -Wsuggest-attribute=noreturn.
[ruby-core:75510] [Bug #12383]
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* configure.in (FUNC_STDCALL, FUNC_CDECL, FUNC_FASTCALL): set
macro names explicitly to the old names, which are accidentally
changed at r54985, for backward compatibilities.
fiddle also depends on these names to fallback to ANSI names.
[ruby-core:75494] [Bug #12377]
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* util.c (ruby_qsort): use qsort_s if available, for Microsoft
Visual Studio 2005 (msvcr80.dll) and mingw.
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is specified and it implied -fexcess-precision=standard.
Now with -std=gnu99, it should be explicitly specified.
https://gcc.gnu.org/onlinedocs/gcc/Optimize-Options.html
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and define CONSTFUNC and PUREFUNC if available.
Note that I don't add those options as default because
it still shows many false-positive (it seems not to consider
longjmp).
* vm_eval.c (stack_check): get rb_thread_t* as an argument
to avoid duplicate call of GET_THREAD().
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* random.c (fill_random_bytes_syscall): use arc4random_buf if
available.
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only if it can use SSE 4.2 POPCNT whose latency is 3 cycle.
* internal.h (rb_popcount64): use __builtin_popcountll because now
it is in fast path.
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* configure.in (__builtin_ctz): check.
* configure.in (__builtin_ctzll): check.
* internal.h (rb_popcount32): defined for ntz_int32.
it can use __builtin_popcount but this function is not used on
GCC environment because it uses __builtin_ctz.
When another function uses this, using __builtin_popcount
should be re-considered.
* internal.h (rb_popcount64): ditto.
* internal.h (ntz_int32): defined for ntz_intptr.
* internal.h (ntz_int64): defined for ntz_intptr.
* internal.h (ntz_intptr): defined as ntz for uintptr_t.
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returns positive infinity, in addition to lgamma_r(-0.0).
AIX returns an incorrect result of negative infinity.
* math.c (ruby_lgamma_r): handle +0.0, in addition to -0.0.
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In AIX, round(0.49999999999999994) returns 1.0.
Use round() in numeric.c instead.
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* configure.in: check if succeeded in creating config.h.
* tool/ifchange: ignore failures when TEST_COLORS unmatched. just
use the default value if expected name is not contained in it.
[ruby-core:75046] [Bug #12303]
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* configure.in (cygwin): add feature macros for the declarations
of eaccess.
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