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133d0d422e
As mentioned by Joseph in PR105101, glibc 2.26 or later has on x86
(both -m32/-m64), powerpc64le, ia64 and mips support for
*f128 math/complex APIs plus strtof128 and strfromf128, and these APIs allow
us to avoid libquadmath for Fortran purposes on these architectures,
replace *q math/complex APIs, strtof128 instead of strtoflt128 and,
while strfromf128 unfortunately isn't a perfect replacement to
quadmath_snprintf, it can be made to work.
The advantage of this is that when configured against such glibcs
(2.26 is now almost 5 years old), we can avoid linking against an extra shared
library and the math support in glibc is maintained better than libquadmath.
We need both a compiler change (so that for glibc 2.26+ it uses *f128 APIs
instead of *q) and library change.
The above mentioned problem with strfromf128 is that the strfrom* functions
are severely restricted versions of snprintf. In libgfortran, we handle
!isfinite differently and just use snprintf/quadmath_snprintf for
%+-#.*{L,Q}{f,e} printing.
strfrom* doesn't allow +, -, # modifiers and it only supports .34 or
similar precision, not .* . The L/Q etc. letters are omitted.
The + is there to force + sign at the start if it is positive.
Workaround in the patch is to add the + at the start manually for
!signbit (val).
The - (left alignment instead of right) I don't understand why we need it,
when minimum field width isn't specified (for strfrom* can't be specified),
no padding is ever added anywhere I believe.
The # is to force adding . - workaround is to search for first . or e or '\0'
character, if it is '\0', just append ., if it is e, insert . before e and
memmove the rest (which is just a few bytes, e, +/- and at most a few digits)
one byte later.
The .* case is handled by creating the format string for strfrom* by
snprintf into a temporary buffer.
As requested, this patch also switches from using __float128 type in
libgfortran to _Float128 which is equivalent on all arches that support
__float128.
The change is done in a backwards compatible change, when GCC is configured
against glibc 2.26 or newer, libgfortran.so.5 itself doesn't link against
-lquadmath nor uses any libquadmath APIs, libgfortran.a doesn't use any
libquadmath APIs either. User programs and libraries when being linked
by gfortran driver are linked against -lgfortran and -lquadmath, but
the latter only in the --as-needed linker mode, which means it needs
to be around during linking and will be linked in if there are any
calls to math/complex functions with real(kind=16) or complex(kind=16)
in compilation units compiled by older versions of gcc, but if either
user code doesn't call those math/complex functions for the largest
supported kind, or the code is recompiled by gcc with this change in,
libquadmath won't be linked in.
2022-06-28 Jakub Jelinek <jakub@redhat.com>
gcc/fortran/
* gfortran.h (gfc_real_info): Add use_iec_60559 bitfield.
* trans-types.h (gfc_real16_use_iec_60559): Declare.
* trans-types.cc (gfc_real16_use_iec_60559): Define.
(gfc_init_kinds): When building powerpc64le-linux libgfortran
on glibc 2.26 to 2.31, set gfc_real16_use_iec_60559 and
use_iec_60559.
(gfc_build_real_type): Set gfc_real16_use_iec_60559 and use_iec_60559
on glibc 2.26 or later.
* trans-intrinsic.cc (gfc_build_intrinsic_lib_fndecls): Adjust
comment. Handle gfc_real16_use_iec_60559.
(gfc_get_intrinsic_lib_fndecl): Handle use_iec_60559.
libgfortran/
* configure.ac: Check for strtof128 and strfromf128.
Check for math and complex *f128 functions. Set
have_iec_60559_libc_support to yes if *f128 support is around, for
--enable-libquadmath-support default to "default" rather than yes if
have_iec_60559_libc_support is yes.
* acinclude.m4 (LIBGFOR_CHECK_FLOAT128): Test
_Float128/_Complex _Float128 rather than __float128 and
_Complex float __attribute__((mode(TC))). If libquadmath support
is defaulted and have_iec_60559_libc_support is yes, define and subst
USE_IEC_60559. Remove unused LIBGFOR_BUILD_QUAD conditional.
* Makefile.am (kinds.h): Pass @USE_IEC_60559@ as an extra
mk-kinds-h.sh argument.
* mk-kinds-h.sh: Accept 4th use_iec_60559 argument. Use
_Float128/_Complex _Float128 types instead of __float128 and
_Complex float __attribute__((mode(TC))), and if use_iec_60559 is yes,
use f128 suffix instead of q and define GFC_REAL_16_USE_IEC_60559.
* kinds-override.h: Use _Float128/_Complex _Float128 types instead of
__float128 and _Complex float __attribute__((mode(TC))), if
USE_IEC_60559 is defined, use f128 suffixes instead of q and
define GFC_REAL_17_USE_IEC_60559.
* libgfortran.h: Don't include quadmath_weak.h if USE_IEC_60559 is
defined.
(GFC_REAL_16_INFINITY, GFC_REAL_16_QUIET_NAN): Define
for GFC_REAL_16_USE_IEC_60559 differently.
* caf/single.c (convert_type): Use _Float128/_Complex _Float128
instead of __float128 and _Complex float __attribute__((mode(TC))).
For HAVE_GFC_REAL_10 when HAVE_GFC_REAL_16 isn't defined use
_Complex long double instead of long double.
* ieee/issignaling_fallback.h (ieee854_float128_shape_type): Use
_Float128 instead of __float128.
(__issignalingf128): Change argument type to _Float128.
(issignaling): Use _Float128 instead of __float128 in _Generic.
* intrinsics/cshift0.c (cshift0): Use _Float128 instead of __float128
in a comment. Fix a comment typo, logn double -> long double.
* intrinsics/erfc_scaled.c (_THRESH, _M_2_SQRTPI, _INF, _ERFC, _EXP):
Use different definitions if GFC_REAL_16_USE_IEC_60559.
(_THRESH, _M_2_SQRTPI): Use GFC_REAL_17_LITERAL macro.
(_ERFC, _EXP): Use different definitions if GFC_REAL_17_USE_IEC_60559.
* intrinsics/spread_generic.c (spread, spread_scalar): Use _Float128
instead of __float128 in a comment. Fix a comment typo,
logn double -> long double.
* intrinsics/trigd.c (ENABLE_SIND, ENABLE_COSD, ENABLE_TAND): Handle
GFC_REAL_16_USE_IEC_60559.
* intrinsics/pack_generic.c (pack): Use _Float128 instead of
__float128 in a comment. Fix a comment typo, logn double ->
long double.
* intrinsics/unpack_generic.c (unpack1, unpack0): Likewise.
* runtime/in_pack_generic.c (internal_pack): Likewise.
* runtime/in_unpack_generic.c (internal_unpack): Likewise.
* io/read.c (convert_real, convert_infnan): Handle
GFC_REAL_16_USE_IEC_60559 and GFC_REAL_17_USE_IEC_60559.
* io/transfer128.c (tmp1, tmp2): Don't define if libquadmath
isn't needed.
* io/write_float.def (gfor_strfromf128): New function.
(DTOA2Q, FDTOA2Q): Define differently if
GFC_REAL_16_USE_IEC_60559 or GFC_REAL_17_USE_IEC_60559.
* m4/mtype.m4: Use different suffix if GFC_REAL_16_USE_IEC_60559
or GFC_REAL_17_USE_IEC_60559.
* config.h.in: Regenerated.
* configure: Regenerated.
* Makefile.in: Regenerated.
* generated/bessel_r16.c: Regenerated.
* generated/bessel_r17.c: Regenerated.
* generated/norm2_r16.c: Regenerated.
* generated/norm2_r17.c: Regenerated.
825 lines
26 KiB
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825 lines
26 KiB
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# Process this file with autoconf to produce a configure script, like so:
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AC_INIT([GNU Fortran Runtime Library], 0.3,,[libgfortran])
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AC_CONFIG_HEADER(config.h)
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GCC_TOPLEV_SUBDIRS
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# -------
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# Options
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# -------
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target_alias=${target_alias-$host_alias}
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# Sets up automake. Must come after AC_CANONICAL_SYSTEM. Each of the
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# following is magically included in AUTOMAKE_OPTIONS in each Makefile.am.
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# 1.9.6: minimum required version
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# no-define: PACKAGE and VERSION will not be #define'd in config.h (a bunch
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# of other PACKAGE_* variables will, however, and there's nothing
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# we can do about that; they come from AC_INIT).
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# foreign: we don't follow the normal rules for GNU packages (no COPYING
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# -Wall: turns on all automake warnings...
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AM_INIT_AUTOMAKE([1.9.6 no-define foreign no-dist -Wall -Wno-portability])
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# Handy for debugging:
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# Are we being configured with some form of cross compiler?
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# NB: We don't actually need to know this just now, but when, say, a test
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if test "$build" != "$host"; then
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# is selected.
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toolexecdir='$(libdir)/gcc/$(target_alias)'
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;;
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;;
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# For GPU offloading, not everything in libfortran can be supported.
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# following is a (partial) list of features that are unsupportable on
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# * alloca
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# * C library support for I/O, with printf as the one notable exception
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# although they do have the support.
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LIBGOMP_CHECKED_REAL_KINDS="4 8 10 16"
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# this is the suspicious part
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fi
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# Types
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|
||
# check header files (we assume C89 is available, so don't check for that)
|
||
AC_CHECK_HEADERS_ONCE(unistd.h sys/random.h sys/time.h sys/times.h \
|
||
sys/resource.h sys/types.h sys/stat.h sys/uio.h sys/wait.h \
|
||
floatingpoint.h ieeefp.h fenv.h fptrap.h \
|
||
fpxcp.h pwd.h complex.h xlocale.h)
|
||
|
||
GCC_HEADER_STDINT(gstdint.h)
|
||
|
||
AC_CHECK_MEMBERS([struct stat.st_blksize, struct stat.st_blocks, struct stat.st_rdev])
|
||
|
||
case "${host}--x${with_newlib}" in
|
||
mips*--xyes)
|
||
hardwire_newlib=1;;
|
||
nvptx*--xyes)
|
||
hardwire_newlib=1;;
|
||
esac
|
||
|
||
# Check for library functions.
|
||
if test "${hardwire_newlib:-0}" -eq 1; then
|
||
# We are being configured with a cross compiler. AC_REPLACE_FUNCS
|
||
# may not work correctly, because the compiler may not be able to
|
||
# link executables.
|
||
AC_DEFINE(HAVE_MKSTEMP, 1, [Define if you have mkstemp.])
|
||
AC_DEFINE(HAVE_STRTOF, 1, [Define if you have strtof.])
|
||
AC_DEFINE(HAVE_SNPRINTF, 1, [Define if you have snprintf.])
|
||
AC_DEFINE(HAVE_VSNPRINTF, 1, [Define if you have vsnprintf.])
|
||
AC_DEFINE(HAVE_LOCALTIME_R, 1, [Define if you have localtime_r.])
|
||
AC_DEFINE(HAVE_GMTIME_R, 1, [Define if you have gmtime_r.])
|
||
AC_DEFINE(HAVE_STRNLEN, 1, [Define if you have strnlen.])
|
||
AC_DEFINE(HAVE_STRNDUP, 1, [Define if you have strndup.])
|
||
|
||
# At some point, we should differentiate between architectures
|
||
# like x86, which have long double versions, and alpha/powerpc/etc.,
|
||
# which don't. For the time being, punt.
|
||
if test x"long_double_math_on_this_cpu" = x"yes"; then
|
||
AC_DEFINE(HAVE_STRTOLD, 1, [Define if you have strtold.])
|
||
fi
|
||
else
|
||
AC_CHECK_FUNCS_ONCE(getrusage times mkstemp strtof strtold snprintf \
|
||
ftruncate chsize chdir getentropy getlogin gethostname kill link symlink \
|
||
sleep ttyname sigaction waitpid \
|
||
alarm access fork posix_spawn setmode fcntl writev \
|
||
gettimeofday stat fstat lstat getpwuid vsnprintf dup \
|
||
getcwd localtime_r gmtime_r getpwuid_r ttyname_r clock_gettime \
|
||
getgid getpid getuid geteuid umask getegid \
|
||
secure_getenv __secure_getenv mkostemp strnlen strndup newlocale \
|
||
freelocale uselocale strerror_l strtof128 strfromf128)
|
||
fi
|
||
|
||
# Check strerror_r, cannot be above as versions with two and three arguments exist
|
||
LIBGFOR_CHECK_STRERROR_R
|
||
|
||
# Check for C99 (and other IEEE) math functions
|
||
GCC_CHECK_MATH_FUNC([acosf])
|
||
GCC_CHECK_MATH_FUNC([acos])
|
||
GCC_CHECK_MATH_FUNC([acosl])
|
||
GCC_CHECK_MATH_FUNC([acoshf])
|
||
GCC_CHECK_MATH_FUNC([acosh])
|
||
GCC_CHECK_MATH_FUNC([acoshl])
|
||
GCC_CHECK_MATH_FUNC([asinf])
|
||
GCC_CHECK_MATH_FUNC([asin])
|
||
GCC_CHECK_MATH_FUNC([asinl])
|
||
GCC_CHECK_MATH_FUNC([asinhf])
|
||
GCC_CHECK_MATH_FUNC([asinh])
|
||
GCC_CHECK_MATH_FUNC([asinhl])
|
||
GCC_CHECK_MATH_FUNC([atan2f])
|
||
GCC_CHECK_MATH_FUNC([atan2])
|
||
GCC_CHECK_MATH_FUNC([atan2l])
|
||
GCC_CHECK_MATH_FUNC([atanf])
|
||
GCC_CHECK_MATH_FUNC([atan])
|
||
GCC_CHECK_MATH_FUNC([atanl])
|
||
GCC_CHECK_MATH_FUNC([atanhf])
|
||
GCC_CHECK_MATH_FUNC([atanh])
|
||
GCC_CHECK_MATH_FUNC([atanhl])
|
||
GCC_CHECK_MATH_FUNC([cargf])
|
||
GCC_CHECK_MATH_FUNC([carg])
|
||
GCC_CHECK_MATH_FUNC([cargl])
|
||
GCC_CHECK_MATH_FUNC([ceilf])
|
||
GCC_CHECK_MATH_FUNC([ceil])
|
||
GCC_CHECK_MATH_FUNC([ceill])
|
||
GCC_CHECK_MATH_FUNC([copysignf])
|
||
GCC_CHECK_MATH_FUNC([copysign])
|
||
GCC_CHECK_MATH_FUNC([copysignl])
|
||
GCC_CHECK_MATH_FUNC([cosf])
|
||
GCC_CHECK_MATH_FUNC([cos])
|
||
GCC_CHECK_MATH_FUNC([cosl])
|
||
GCC_CHECK_MATH_FUNC([ccosf])
|
||
GCC_CHECK_MATH_FUNC([ccos])
|
||
GCC_CHECK_MATH_FUNC([ccosl])
|
||
GCC_CHECK_MATH_FUNC([coshf])
|
||
GCC_CHECK_MATH_FUNC([cosh])
|
||
GCC_CHECK_MATH_FUNC([coshl])
|
||
GCC_CHECK_MATH_FUNC([ccoshf])
|
||
GCC_CHECK_MATH_FUNC([ccosh])
|
||
GCC_CHECK_MATH_FUNC([ccoshl])
|
||
GCC_CHECK_MATH_FUNC([expf])
|
||
GCC_CHECK_MATH_FUNC([exp])
|
||
GCC_CHECK_MATH_FUNC([expl])
|
||
GCC_CHECK_MATH_FUNC([cexpf])
|
||
GCC_CHECK_MATH_FUNC([cexp])
|
||
GCC_CHECK_MATH_FUNC([cexpl])
|
||
GCC_CHECK_MATH_FUNC([fabsf])
|
||
GCC_CHECK_MATH_FUNC([fabs])
|
||
GCC_CHECK_MATH_FUNC([fabsl])
|
||
GCC_CHECK_MATH_FUNC([cabsf])
|
||
GCC_CHECK_MATH_FUNC([cabs])
|
||
GCC_CHECK_MATH_FUNC([cabsl])
|
||
GCC_CHECK_MATH_FUNC([floorf])
|
||
GCC_CHECK_MATH_FUNC([floor])
|
||
GCC_CHECK_MATH_FUNC([floorl])
|
||
GCC_CHECK_MATH_FUNC([fmaf])
|
||
GCC_CHECK_MATH_FUNC([fma])
|
||
GCC_CHECK_MATH_FUNC([fmal])
|
||
GCC_CHECK_MATH_FUNC([fmodf])
|
||
GCC_CHECK_MATH_FUNC([fmod])
|
||
GCC_CHECK_MATH_FUNC([fmodl])
|
||
GCC_CHECK_MATH_FUNC([frexpf])
|
||
GCC_CHECK_MATH_FUNC([frexp])
|
||
GCC_CHECK_MATH_FUNC([frexpl])
|
||
GCC_CHECK_MATH_FUNC([hypotf])
|
||
GCC_CHECK_MATH_FUNC([hypot])
|
||
GCC_CHECK_MATH_FUNC([hypotl])
|
||
GCC_CHECK_MATH_FUNC([ldexpf])
|
||
GCC_CHECK_MATH_FUNC([ldexp])
|
||
GCC_CHECK_MATH_FUNC([ldexpl])
|
||
GCC_CHECK_MATH_FUNC([logf])
|
||
GCC_CHECK_MATH_FUNC([log])
|
||
GCC_CHECK_MATH_FUNC([logl])
|
||
GCC_CHECK_MATH_FUNC([clogf])
|
||
GCC_CHECK_MATH_FUNC([clog])
|
||
GCC_CHECK_MATH_FUNC([clogl])
|
||
GCC_CHECK_MATH_FUNC([log10f])
|
||
GCC_CHECK_MATH_FUNC([log10])
|
||
GCC_CHECK_MATH_FUNC([log10l])
|
||
GCC_CHECK_MATH_FUNC([clog10f])
|
||
GCC_CHECK_MATH_FUNC([clog10])
|
||
GCC_CHECK_MATH_FUNC([clog10l])
|
||
GCC_CHECK_MATH_FUNC([nextafterf])
|
||
GCC_CHECK_MATH_FUNC([nextafter])
|
||
GCC_CHECK_MATH_FUNC([nextafterl])
|
||
GCC_CHECK_MATH_FUNC([powf])
|
||
GCC_CHECK_MATH_FUNC([pow])
|
||
GCC_CHECK_MATH_FUNC([cpowf])
|
||
GCC_CHECK_MATH_FUNC([cpow])
|
||
GCC_CHECK_MATH_FUNC([cpowl])
|
||
GCC_CHECK_MATH_FUNC([roundf])
|
||
GCC_CHECK_MATH_FUNC([round])
|
||
GCC_CHECK_MATH_FUNC([roundl])
|
||
GCC_CHECK_MATH_FUNC([lroundf])
|
||
GCC_CHECK_MATH_FUNC([lround])
|
||
GCC_CHECK_MATH_FUNC([lroundl])
|
||
GCC_CHECK_MATH_FUNC([llroundf])
|
||
GCC_CHECK_MATH_FUNC([llround])
|
||
GCC_CHECK_MATH_FUNC([llroundl])
|
||
GCC_CHECK_MATH_FUNC([scalbnf])
|
||
GCC_CHECK_MATH_FUNC([scalbn])
|
||
GCC_CHECK_MATH_FUNC([scalbnl])
|
||
GCC_CHECK_MATH_FUNC([sinf])
|
||
GCC_CHECK_MATH_FUNC([sin])
|
||
GCC_CHECK_MATH_FUNC([sinl])
|
||
GCC_CHECK_MATH_FUNC([csinf])
|
||
GCC_CHECK_MATH_FUNC([csin])
|
||
GCC_CHECK_MATH_FUNC([csinl])
|
||
GCC_CHECK_MATH_FUNC([sinhf])
|
||
GCC_CHECK_MATH_FUNC([sinh])
|
||
GCC_CHECK_MATH_FUNC([sinhl])
|
||
GCC_CHECK_MATH_FUNC([csinhf])
|
||
GCC_CHECK_MATH_FUNC([csinh])
|
||
GCC_CHECK_MATH_FUNC([csinhl])
|
||
GCC_CHECK_MATH_FUNC([sqrtf])
|
||
GCC_CHECK_MATH_FUNC([sqrt])
|
||
GCC_CHECK_MATH_FUNC([sqrtl])
|
||
GCC_CHECK_MATH_FUNC([csqrtf])
|
||
GCC_CHECK_MATH_FUNC([csqrt])
|
||
GCC_CHECK_MATH_FUNC([csqrtl])
|
||
GCC_CHECK_MATH_FUNC([tanf])
|
||
GCC_CHECK_MATH_FUNC([tan])
|
||
GCC_CHECK_MATH_FUNC([tanl])
|
||
GCC_CHECK_MATH_FUNC([ctanf])
|
||
GCC_CHECK_MATH_FUNC([ctan])
|
||
GCC_CHECK_MATH_FUNC([ctanl])
|
||
GCC_CHECK_MATH_FUNC([tanhf])
|
||
GCC_CHECK_MATH_FUNC([tanh])
|
||
GCC_CHECK_MATH_FUNC([tanhl])
|
||
GCC_CHECK_MATH_FUNC([ctanhf])
|
||
GCC_CHECK_MATH_FUNC([ctanh])
|
||
GCC_CHECK_MATH_FUNC([ctanhl])
|
||
GCC_CHECK_MATH_FUNC([truncf])
|
||
GCC_CHECK_MATH_FUNC([trunc])
|
||
GCC_CHECK_MATH_FUNC([truncl])
|
||
GCC_CHECK_MATH_FUNC([erff])
|
||
GCC_CHECK_MATH_FUNC([erf])
|
||
GCC_CHECK_MATH_FUNC([erfcf])
|
||
GCC_CHECK_MATH_FUNC([erfc])
|
||
GCC_CHECK_MATH_FUNC([erfcl])
|
||
GCC_CHECK_MATH_FUNC([j0f])
|
||
GCC_CHECK_MATH_FUNC([j0])
|
||
GCC_CHECK_MATH_FUNC([j1f])
|
||
GCC_CHECK_MATH_FUNC([j1])
|
||
GCC_CHECK_MATH_FUNC([jnf])
|
||
GCC_CHECK_MATH_FUNC([jn])
|
||
GCC_CHECK_MATH_FUNC([jnl])
|
||
GCC_CHECK_MATH_FUNC([y0f])
|
||
GCC_CHECK_MATH_FUNC([y0])
|
||
GCC_CHECK_MATH_FUNC([y1f])
|
||
GCC_CHECK_MATH_FUNC([y1])
|
||
GCC_CHECK_MATH_FUNC([ynf])
|
||
GCC_CHECK_MATH_FUNC([yn])
|
||
GCC_CHECK_MATH_FUNC([ynl])
|
||
GCC_CHECK_MATH_FUNC([tgamma])
|
||
GCC_CHECK_MATH_FUNC([tgammaf])
|
||
GCC_CHECK_MATH_FUNC([lgamma])
|
||
GCC_CHECK_MATH_FUNC([lgammaf])
|
||
|
||
# Check for GFORTRAN_C99_1.1 funcs
|
||
GCC_CHECK_MATH_FUNC([cacos])
|
||
GCC_CHECK_MATH_FUNC([cacosf])
|
||
GCC_CHECK_MATH_FUNC([cacosh])
|
||
GCC_CHECK_MATH_FUNC([cacoshf])
|
||
GCC_CHECK_MATH_FUNC([cacoshl])
|
||
GCC_CHECK_MATH_FUNC([cacosl])
|
||
GCC_CHECK_MATH_FUNC([casin])
|
||
GCC_CHECK_MATH_FUNC([casinf])
|
||
GCC_CHECK_MATH_FUNC([casinh])
|
||
GCC_CHECK_MATH_FUNC([casinhf])
|
||
GCC_CHECK_MATH_FUNC([casinhl])
|
||
GCC_CHECK_MATH_FUNC([casinl])
|
||
GCC_CHECK_MATH_FUNC([catan])
|
||
GCC_CHECK_MATH_FUNC([catanf])
|
||
GCC_CHECK_MATH_FUNC([catanh])
|
||
GCC_CHECK_MATH_FUNC([catanhf])
|
||
GCC_CHECK_MATH_FUNC([catanhl])
|
||
GCC_CHECK_MATH_FUNC([catanl])
|
||
|
||
# For POWER, check the ieee128 math functions
|
||
|
||
if test "x$have_real_17" = "xyes"; then
|
||
AC_DEFINE_UNQUOTED(AS_TR_CPP(HAVE_REAL_17),[1],
|
||
[Define to 1 if you have REAL(KIND=17)])
|
||
|
||
LIBGFOR_CHECK_MATH_IEEE128([__acoshieee128])
|
||
LIBGFOR_CHECK_MATH_IEEE128([__acosieee128])
|
||
LIBGFOR_CHECK_MATH_IEEE128([__asinhieee128])
|
||
LIBGFOR_CHECK_MATH_IEEE128([__asinieee128])
|
||
LIBGFOR_CHECK_MATH_IEEE128([__atan2ieee128])
|
||
LIBGFOR_CHECK_MATH_IEEE128([__atanhieee128])
|
||
LIBGFOR_CHECK_MATH_IEEE128([__atanieee128])
|
||
LIBGFOR_CHECK_MATH_IEEE128([__coshieee128])
|
||
LIBGFOR_CHECK_MATH_IEEE128([__cosieee128])
|
||
LIBGFOR_CHECK_MATH_IEEE128([__erfieee128])
|
||
LIBGFOR_CHECK_MATH_IEEE128([__expieee128])
|
||
LIBGFOR_CHECK_MATH_IEEE128([__fabsieee128])
|
||
LIBGFOR_CHECK_MATH_IEEE128([__jnieee128])
|
||
LIBGFOR_CHECK_MATH_IEEE128([__log10ieee128])
|
||
LIBGFOR_CHECK_MATH_IEEE128([__logieee128])
|
||
LIBGFOR_CHECK_MATH_IEEE128([__powieee128])
|
||
LIBGFOR_CHECK_MATH_IEEE128([__sinhieee128])
|
||
LIBGFOR_CHECK_MATH_IEEE128([__sinieee128])
|
||
LIBGFOR_CHECK_MATH_IEEE128([__sqrtieee128])
|
||
LIBGFOR_CHECK_MATH_IEEE128([__tanhieee128])
|
||
LIBGFOR_CHECK_MATH_IEEE128([__tanieee128])
|
||
LIBGFOR_CHECK_MATH_IEEE128([__ynieee128])
|
||
fi
|
||
|
||
# On AIX, clog is present in libm as __clog
|
||
AC_CHECK_LIB([m],[__clog],[AC_DEFINE([HAVE_CLOG],[1],[libm includes clog])])
|
||
|
||
GCC_CHECK_MATH_INLINE_BUILTIN_FALLBACK2([copysign], [double])
|
||
GCC_CHECK_MATH_INLINE_BUILTIN_FALLBACK2([copysignl], [long double])
|
||
GCC_CHECK_MATH_INLINE_BUILTIN_FALLBACK1([fabs], [double])
|
||
GCC_CHECK_MATH_INLINE_BUILTIN_FALLBACK1([fabsl], [long double])
|
||
|
||
GCC_CHECK_MATH_FUNC([acosf128])
|
||
GCC_CHECK_MATH_FUNC([acoshf128])
|
||
GCC_CHECK_MATH_FUNC([asinf128])
|
||
GCC_CHECK_MATH_FUNC([asinhf128])
|
||
GCC_CHECK_MATH_FUNC([atan2f128])
|
||
GCC_CHECK_MATH_FUNC([atanf128])
|
||
GCC_CHECK_MATH_FUNC([atanhf128])
|
||
GCC_CHECK_MATH_FUNC([cargf128])
|
||
GCC_CHECK_MATH_FUNC([ceilf128])
|
||
GCC_CHECK_MATH_FUNC([copysignf128])
|
||
GCC_CHECK_MATH_FUNC([cosf128])
|
||
GCC_CHECK_MATH_FUNC([ccosf128])
|
||
GCC_CHECK_MATH_FUNC([coshf128])
|
||
GCC_CHECK_MATH_FUNC([ccoshf128])
|
||
GCC_CHECK_MATH_FUNC([expf128])
|
||
GCC_CHECK_MATH_FUNC([cexpf128])
|
||
GCC_CHECK_MATH_FUNC([fabsf128])
|
||
GCC_CHECK_MATH_FUNC([cabsf128])
|
||
GCC_CHECK_MATH_FUNC([floorf128])
|
||
GCC_CHECK_MATH_FUNC([fmaf128])
|
||
GCC_CHECK_MATH_FUNC([fmodf128])
|
||
GCC_CHECK_MATH_FUNC([frexpf128])
|
||
GCC_CHECK_MATH_FUNC([hypotf128])
|
||
GCC_CHECK_MATH_FUNC([ldexpf128])
|
||
GCC_CHECK_MATH_FUNC([logf128])
|
||
GCC_CHECK_MATH_FUNC([clogf128])
|
||
GCC_CHECK_MATH_FUNC([log10f128])
|
||
GCC_CHECK_MATH_FUNC([clog10f128])
|
||
GCC_CHECK_MATH_FUNC([nextafterf128])
|
||
GCC_CHECK_MATH_FUNC([powf128])
|
||
GCC_CHECK_MATH_FUNC([cpowf128])
|
||
GCC_CHECK_MATH_FUNC([roundf128])
|
||
GCC_CHECK_MATH_FUNC([lroundf128])
|
||
GCC_CHECK_MATH_FUNC([llroundf128])
|
||
GCC_CHECK_MATH_FUNC([scalbnf128])
|
||
GCC_CHECK_MATH_FUNC([sinf128])
|
||
GCC_CHECK_MATH_FUNC([csinf128])
|
||
GCC_CHECK_MATH_FUNC([sinhf128])
|
||
GCC_CHECK_MATH_FUNC([csinhf128])
|
||
GCC_CHECK_MATH_FUNC([sqrtf128])
|
||
GCC_CHECK_MATH_FUNC([csqrtf128])
|
||
GCC_CHECK_MATH_FUNC([tanf128])
|
||
GCC_CHECK_MATH_FUNC([ctanf128])
|
||
GCC_CHECK_MATH_FUNC([tanhf128])
|
||
GCC_CHECK_MATH_FUNC([ctanhf128])
|
||
GCC_CHECK_MATH_FUNC([truncf128])
|
||
GCC_CHECK_MATH_FUNC([erff128])
|
||
GCC_CHECK_MATH_FUNC([erfcf128])
|
||
GCC_CHECK_MATH_FUNC([j0f128])
|
||
GCC_CHECK_MATH_FUNC([j1f128])
|
||
GCC_CHECK_MATH_FUNC([jnf128])
|
||
GCC_CHECK_MATH_FUNC([y0f128])
|
||
GCC_CHECK_MATH_FUNC([y1f128])
|
||
GCC_CHECK_MATH_FUNC([ynf128])
|
||
GCC_CHECK_MATH_FUNC([tgammaf128])
|
||
GCC_CHECK_MATH_FUNC([lgammaf128])
|
||
|
||
GCC_CHECK_MATH_FUNC([cacosf128])
|
||
GCC_CHECK_MATH_FUNC([cacoshf128])
|
||
GCC_CHECK_MATH_FUNC([casinf128])
|
||
GCC_CHECK_MATH_FUNC([casinhf128])
|
||
GCC_CHECK_MATH_FUNC([catanf128])
|
||
GCC_CHECK_MATH_FUNC([catanhf128])
|
||
|
||
# Check whether the system has a working stat()
|
||
LIBGFOR_CHECK_WORKING_STAT
|
||
|
||
# Check whether __mingw_snprintf() is present
|
||
LIBGFOR_CHECK_MINGW_SNPRINTF
|
||
|
||
have_iec_60559_libc_support=no
|
||
if test "x$ac_cv_func_strtof128$ac_cv_func_strfromf128" = xyesyes \
|
||
&& test "x$gcc_cv_math_func_sinf128$gcc_cv_math_func_cacosf128" = xyesyes; then
|
||
have_iec_60559_libc_support=yes
|
||
fi
|
||
|
||
# Check whether libquadmath should be used
|
||
AC_ARG_ENABLE(libquadmath-support,
|
||
AS_HELP_STRING([--disable-libquadmath-support],
|
||
[disable libquadmath support for Fortran]),
|
||
ENABLE_LIBQUADMATH_SUPPORT=$enableval,
|
||
if test "x$have_iec_60559_libc_support" = xyes; then
|
||
ENABLE_LIBQUADMATH_SUPPORT=default
|
||
else
|
||
ENABLE_LIBQUADMATH_SUPPORT=yes
|
||
fi)
|
||
enable_libquadmath_support=
|
||
if test "${ENABLE_LIBQUADMATH_SUPPORT}" = "no" ; then
|
||
enable_libquadmath_support=no
|
||
elif test "${ENABLE_LIBQUADMATH_SUPPORT}" = "default" ; then
|
||
enable_libquadmath_support=default
|
||
fi
|
||
|
||
# Check whether we have a _Float128 type, depends on enable_libquadmath_support
|
||
# and have_iec_60559_libc_support.
|
||
LIBGFOR_CHECK_FLOAT128
|
||
|
||
# Check for GNU libc feenableexcept
|
||
AC_CHECK_LIB([m],[feenableexcept],[have_feenableexcept=yes AC_DEFINE([HAVE_FEENABLEEXCEPT],[1],[libm includes feenableexcept])])
|
||
|
||
# At least for glibc, clock_gettime is in librt. But don't
|
||
# pull that in if it still doesn't give us the function we want. This
|
||
# test is copied from libgomp, and modified to not link in -lrt as
|
||
# libgfortran calls clock_gettime via a weak reference if it's found
|
||
# in librt.
|
||
if test "$ac_cv_func_clock_gettime" = no; then
|
||
AC_CHECK_LIB(rt, clock_gettime,
|
||
[AC_DEFINE(HAVE_CLOCK_GETTIME_LIBRT, 1,
|
||
[Define to 1 if you have the `clock_gettime' function in librt.])])
|
||
fi
|
||
|
||
# Check for SysV fpsetmask
|
||
LIBGFOR_CHECK_FPSETMASK
|
||
AC_CHECK_TYPES([fp_except,fp_except_t], [], [], [[
|
||
#ifdef HAVE_IEEEFP_H
|
||
#include <ieeefp.h>
|
||
#endif
|
||
#include <math.h>
|
||
]])
|
||
AC_CHECK_TYPES([fp_rnd,fp_rnd_t], [], [], [[
|
||
#ifdef HAVE_IEEEFP_H
|
||
#include <ieeefp.h>
|
||
#endif
|
||
#include <math.h>
|
||
]])
|
||
|
||
# Check whether we have fpsetsticky or fpresetsticky
|
||
AC_CHECK_FUNC([fpsetsticky],[have_fpsetsticky=yes AC_DEFINE([HAVE_FPSETSTICKY],[1],[fpsetsticky is present])])
|
||
AC_CHECK_FUNC([fpresetsticky],[have_fpresetsticky=yes AC_DEFINE([HAVE_FPRESETSTICKY],[1],[fpresetsticky is present])])
|
||
|
||
# Check for AIX fp_trap and fp_enable
|
||
AC_CHECK_FUNC([fp_trap],[have_fp_trap=yes AC_DEFINE([HAVE_FP_TRAP],[1],[fp_trap is present])])
|
||
AC_CHECK_FUNC([fp_enable],[have_fp_enable=yes AC_DEFINE([HAVE_FP_ENABLE],[1],[fp_enable is present])])
|
||
|
||
# Check if _SOFT_FLOAT is defined
|
||
AC_CHECK_DEFINE([_SOFT_FLOAT],[have_soft_float=yes])
|
||
|
||
# Runs configure.host to set up necessary host-dependent shell variables.
|
||
# We then display a message about it, and propagate them through the
|
||
# build chain.
|
||
. ${srcdir}/configure.host
|
||
AC_MSG_NOTICE([FPU dependent file will be ${fpu_host}.h])
|
||
AC_MSG_NOTICE([Support for IEEE modules: ${ieee_support}])
|
||
FPU_HOST_HEADER=config/${fpu_host}.h
|
||
AC_SUBST(FPU_HOST_HEADER)
|
||
|
||
# Whether we will build the IEEE modules
|
||
AM_CONDITIONAL(IEEE_SUPPORT,[test x${ieee_support} = xyes])
|
||
AC_SUBST(IEEE_SUPPORT)
|
||
|
||
# Some targets require additional compiler options for IEEE compatibility.
|
||
IEEE_FLAGS="${ieee_flags}"
|
||
AC_SUBST(IEEE_FLAGS)
|
||
|
||
# Conditionalize the makefile for this target machine.
|
||
tmake_file_=
|
||
for f in ${tmake_file}
|
||
do
|
||
if test -f ${srcdir}/config/$f
|
||
then
|
||
tmake_file_="${tmake_file_} \$(srcdir)/config/$f"
|
||
fi
|
||
done
|
||
tmake_file="${tmake_file_}"
|
||
AC_SUBST(tmake_file)
|
||
|
||
|
||
# Check for POSIX getpwuid_r
|
||
#
|
||
# There are two versions of getpwuid_r, the POSIX one with 5
|
||
# arguments, and another one with 4 arguments used by at least HP-UX
|
||
# 10.2.
|
||
if test "$ac_cv_func_getpwuid_r" = "yes"; then
|
||
AC_CACHE_CHECK([POSIX version of getpwuid_r with 5 arguments], libgfor_cv_posix_getpwuid_r, [
|
||
AC_LINK_IFELSE([AC_LANG_PROGRAM([
|
||
#include <stdio.h>
|
||
#include <sys/types.h>
|
||
#include <pwd.h>], [
|
||
getpwuid_r(0, NULL, NULL, 0, NULL);
|
||
])], [libgfor_cv_posix_getpwuid_r="yes"], [libgfor_cv_posix_getpwuid_r="no"])])
|
||
fi
|
||
if test "$libgfor_cv_posix_getpwuid_r" = "yes"; then
|
||
AC_DEFINE([HAVE_POSIX_GETPWUID_R], [1], [Define to 1 if we have POSIX getpwuid_r which takes 5 arguments.])
|
||
fi
|
||
|
||
|
||
# Check out attribute support.
|
||
LIBGFOR_CHECK_ATTRIBUTE_VISIBILITY
|
||
LIBGFOR_CHECK_ATTRIBUTE_ALIAS
|
||
|
||
# Check out atomic builtins support.
|
||
LIBGFOR_CHECK_ATOMIC_FETCH_ADD
|
||
|
||
# Check out #pragma weak.
|
||
LIBGFOR_GTHREAD_WEAK
|
||
|
||
# Check out weakref support.
|
||
LIBGFOR_CHECK_WEAKREF
|
||
|
||
# Various other checks on target
|
||
LIBGFOR_CHECK_UNLINK_OPEN_FILE
|
||
|
||
# Check whether line terminator is LF or CRLF
|
||
LIBGFOR_CHECK_CRLF
|
||
|
||
# Check whether we support AVX extensions
|
||
LIBGFOR_CHECK_AVX
|
||
|
||
# Check whether we support AVX2 extensions
|
||
LIBGFOR_CHECK_AVX2
|
||
|
||
# Check whether we support AVX512f extensions
|
||
LIBGFOR_CHECK_AVX512F
|
||
|
||
# Check for FMA3 extensions
|
||
LIBGFOR_CHECK_FMA3
|
||
|
||
# Check for FMA4 extensions
|
||
LIBGFOR_CHECK_FMA4
|
||
|
||
# Check if AVX128 works
|
||
LIBGFOR_CHECK_AVX128
|
||
|
||
# Determine what GCC version number to use in filesystem paths.
|
||
GCC_BASE_VER
|
||
|
||
AC_CACHE_SAVE
|
||
|
||
if test ${multilib} = yes; then
|
||
multilib_arg="--enable-multilib"
|
||
else
|
||
multilib_arg=
|
||
fi
|
||
|
||
# Write our Makefile and spec file.
|
||
AC_CONFIG_FILES([
|
||
Makefile
|
||
libgfortran.spec
|
||
])
|
||
AC_OUTPUT
|