glib/glib/gnulib/meson.build
Marco Trevisan (Treviño) d7a6305ba4 glib/gnulib/meson: Disable some warnings on clang windows builds
We have gnulib warnings in windows under clang:
  ../glib/gnulib/vasnprintf.c:2429:21: warning: variable 'flags' set but not
    used [-Wunused-but-set-variable]
                int flags = dp->flags;
                    ^

  ../glib/gnulib/vasnprintf.c:4853:19: warning: unannotated fall-through
    between switch labels [-Wimplicit-fallthrough]
                  case TYPE_LONGINT:
                  ^

See: https://gitlab.gnome.org/3v1n0/glib/-/jobs/2361750
2022-10-31 12:00:53 +01:00

388 lines
9.4 KiB
Meson

# glib enables -Werror=format-nonliteral by default, but the embedded gnulib
# needs to handle user provided format strings.
extra_gnulib_args = cc.get_supported_arguments([
'-Wno-format-nonliteral', '-Wno-duplicated-branches'])
if host_system == 'windows' and cc.get_id() == 'clang'
extra_gnulib_args += cc.get_supported_arguments([
'-Wno-unused-but-set-variable',
'-Wno-implicit-fallthrough',
])
endif
math_h_config = configuration_data ()
unneeded_funcs = [
'ACOSF',
'ACOSL',
'ASINF',
'ASINL',
'ATAN2F',
'ATANF',
'ATANL',
'CBRT',
'CBRTF',
'CBRTL',
'CEIL',
'CEILF',
'CEILL',
'COPYSIGN',
'COPYSIGNF',
'COPYSIGNL',
'COSF',
'COSHF',
'COSL',
'EXP2',
'EXP2F',
'EXP2L',
'EXPF',
'EXPL',
'EXPM1',
'EXPM1F',
'EXPM1L',
'FABSF',
'FABSL',
'FLOOR',
'FLOORF',
'FLOORL',
'FMA',
'FMAF',
'FMAL',
'FMOD',
'FMODF',
'FMODL',
'FREXPF',
'HYPOT',
'HYPOTF',
'HYPOTL',
'ILOGB',
'ILOGBF',
'ILOGBL',
'LDEXPF',
'LOG',
'LOG10',
'LOG10F',
'LOG10L',
'LOG1P',
'LOG1PF',
'LOG1PL',
'LOG2',
'LOG2F',
'LOG2L',
'LOGB',
'LOGBF',
'LOGBL',
'LOGF',
'LOGL',
'MODF',
'MODFF',
'MODFL',
'POWF',
'REMAINDER',
'REMAINDERF',
'REMAINDERL',
'RINT',
'RINTF',
'RINTL',
'ROUND',
'ROUNDF',
'ROUNDL',
'SINF',
'SINHF',
'SINL',
'SQRTF',
'SQRTL',
'TANF',
'TANHF',
'TANL',
'TRUNC',
'TRUNCF',
'TRUNCL',
]
foreach f : unneeded_funcs
math_h_config.set ('GNULIB_' + f, 0)
# These are not used in practice, guarded by
# the appropriate GNULIB_*, but meson config
# processor doesn't know that
math_h_config.set ('HAVE_' + f, 'variable not used')
math_h_config.set ('REPLACE_' + f, 'variable not used')
endforeach
needed_funcs = [
'FREXP',
'FREXPL',
'ISFINITE',
'ISINF',
'ISNAN',
'ISNAND',
'ISNANF',
'ISNANL',
'LDEXPL',
'SIGNBIT',
]
foreach f : needed_funcs
math_h_config.set ('GNULIB_' + f, 1)
endforeach
math_h_config.set ('GUARD_PREFIX', 'GL')
decls_for_unused_funcs = [
'ACOSL',
'ASINL',
'ATANL',
'CBRTF',
'CBRTL',
'CEILF',
'CEILL',
'COPYSIGNF',
'COSL',
'EXP2',
'EXP2F',
'EXP2L',
'EXPL',
'EXPM1L',
'FLOORF',
'FLOORL',
'LOG10L',
'LOG2',
'LOG2F',
'LOG2L',
'LOGB',
'LOGL',
'REMAINDER',
'REMAINDERL',
'RINTF',
'ROUND',
'ROUNDF',
'ROUNDL',
'SINL',
'SQRTL',
'TANL',
'TRUNC',
'TRUNCF',
'TRUNCL',
]
foreach f : decls_for_unused_funcs
math_h_config.set ('HAVE_DECL_' + f, 0)
endforeach
decls_for_used_funcs = [
'frexpl',
'ldexpl',
]
foreach f : decls_for_used_funcs
compiles = cc.compiles('''#include <math.h>
int main ()
{
(void) @0@;
return 0;
}
'''.format (f))
math_h_config.set ('HAVE_DECL_' + f.to_upper (), compiles ? 1 : 0)
set_variable ('have_decl_' + f, compiles ? true : false)
endforeach
nan_tmpl = '''#include <math.h>
#if __GNUC__ >= 4
# undef @0@
# define @0@(x) @2@ ((@1@)(x))
#else
# undef @0@
# define @0@(x) isnan ((@1@)(x))
#endif
double x;
int main () {return @0@ (x);}
'''
links = cc.links (nan_tmpl.format ('isnand', 'double', '__builtin_isnan'),
dependencies : [libm])
math_h_config.set ('HAVE_ISNAN', links ? 1 : 0)
set_variable ('have_isnan', links)
math_h_config.set ('HAVE_ISNAND', links ? 1 : 0)
set_variable ('have_isnand', links)
if links
extra_gnulib_args += '-DHAVE_ISNAN_IN_LIBC'
extra_gnulib_args += '-DHAVE_ISNAND_IN_LIBC'
endif
links = cc.links (nan_tmpl.format ('isnanf', 'float', '__builtin_isnanf'),
dependencies : [libm])
math_h_config.set ('HAVE_ISNANF', links ? 1 : 0)
set_variable ('have_isnanf', links)
if links
extra_gnulib_args += '-DHAVE_ISNANF_IN_LIBC'
endif
links = cc.links (nan_tmpl.format ('isnanl', 'long double', '__builtin_isnanl'),
dependencies : [libm])
math_h_config.set ('HAVE_ISNANL', links ? 1 : 0)
set_variable ('have_isnanl', links)
if links
extra_gnulib_args += '-DHAVE_ISNANL_IN_LIBC'
endif
math_h_config.set ('REPLACE_ISNAN', (have_isnand and have_isnanf and have_isnanl) ? 0 : 1)
other_needed_math_sources = []
if not (have_isnand and have_isnanf and have_isnanl)
other_needed_math_sources += [ 'isnand.c', 'isnanf.c', 'isnanl.c' ]
endif
links = cc.links ('''#include <math.h>
double x;
int y;
int main () {return ldexp (x, y) < 1;}
''',
dependencies : [libm])
math_h_config.set ('HAVE_LDEXP', links ? 1 : 0)
math_h_config.set ('HAVE_LDEXP_IN_LIBC', links ? 1 : 0)
set_variable ('have_ldexp', links)
links = cc.links ('''#include <math.h>
long double x;
int main () {return ldexpl (x, -1) > 0;}
''',
dependencies : [libm])
math_h_config.set ('HAVE_LDEXPL', links ? 1 : 0)
math_h_config.set ('HAVE_LDEXPL_IN_LIBC', links ? 1 : 0)
set_variable ('have_ldexpl', links)
links = cc.links ('''#include <math.h>
double x;
int main () {int e; return frexp (x, &e) > 0;}
''',
dependencies : [libm])
math_h_config.set ('HAVE_FREXP', links ? 1 : 0)
math_h_config.set ('HAVE_FREXP_IN_LIBC', links ? 1 : 0)
set_variable ('have_frexp', links)
links = cc.links ('''#include <math.h>
long double x;
int main () {int e; return frexpl (x, &e) > 0;}
''',
dependencies : [libm])
math_h_config.set ('HAVE_FREXPL', links ? 1 : 0)
math_h_config.set ('HAVE_FREXPL_IN_LIBC', links ? 1 : 0)
set_variable ('have_frexpl', links)
math_h_config.set ('INCLUDE_NEXT_AS_FIRST_DIRECTIVE', 'include')
math_h_config.set ('NEXT_AS_FIRST_DIRECTIVE_MATH_H', '<math.h>')
math_h_config.set ('PRAGMA_COLUMNS', '')
math_h_config.set ('PRAGMA_SYSTEM_HEADER', '')
compiles = cc.compiles ('''
#include <math.h>
/* Solaris 10 has a broken definition of NAN. Other platforms
fail to provide NAN, or provide it only in C99 mode; this
test only needs to fail when NAN is provided but wrong. */
int main () {
float f = 1.0f;
#ifdef NAN
f = NAN;
#endif
return f == 0;
}
''')
math_h_config.set ('REPLACE_NAN', compiles ? 0 : 1)
if have_frexp
subdir ('gl_cv_func_frexp_works')
else
gl_cv_func_frexp_works = false
gl_cv_func_frexp_broken_beyond_repair = true
endif
if have_frexpl
subdir ('gl_cv_func_frexpl_works')
else
gl_cv_func_frexpl_works = false
gl_cv_func_frexpl_broken_beyond_repair = true
endif
if not gl_cv_func_frexp_works and gl_cv_func_frexp_broken_beyond_repair
error ('frexp() is missing or broken beyond repair, and we have nothing to replace it with')
endif
if not gl_cv_func_frexpl_works and gl_cv_func_frexpl_broken_beyond_repair
error ('frexpl() is missing or broken beyond repair, and we have nothing to replace it with')
endif
math_h_config.set ('REPLACE_FREXP', gl_cv_func_frexp_works ? 0 : 1)
math_h_config.set ('REPLACE_FREXPL', gl_cv_func_frexpl_works ? 0 : 1)
math_h_config.set ('HAVE_DECL_FREXPL', gl_cv_func_frexpl_decl ? 0 : 1)
math_h_config.set ('REPLACE_ITOLD', 0)
math_h_config.set ('REPLACE_HUGE_VAL', 0)
math_h_config.set ('REPLACE_SIGNBIT_USING_GCC', 0)
if have_ldexpl
subdir ('gl_cv_func_ldexpl_works')
else
gl_cv_func_ldexpl_works = false
endif
math_h_config.set ('REPLACE_LDEXPL', gl_cv_func_ldexpl_works ? 0 : 1)
math_h_config.set ('HAVE_DECL_LDEXPL', gl_cv_func_ldexpl_decl ? 0 : 1)
inf_tmpl = '''#include <math.h>
double x;
int main () {return @0@ (x);}
'''
# Some compilers may not have isfinite, isinf available
foreach f: ['isfinite', 'isinf', 'signbit']
links = cc.links (inf_tmpl.format('@0@'.format(f)),
dependencies : [libm])
math_h_config.set ('HAVE_@0@'.format(f.to_upper()), links ? 1 : 0)
math_h_config.set ('HAVE_@0@_IN_LIBC'.format(f.to_upper()), links ? 1 : 0)
math_h_config.set ('REPLACE_@0@'.format(f.to_upper()), links ? 0 : 1)
set_variable ('have_@0@'.format(f), links)
if not links
if f == 'signbit'
other_needed_math_sources += [ 'signbitd.c', 'signbitf.c', 'signbitl.c' ]
elif f != 'isfinite' and f != 'isnan'
other_needed_math_sources += [ '@0@.c'.format(f) ]
endif
endif
endforeach
math_h = configure_file (input: 'gnulib_math.h.in',
output: 'gnulib_math.h',
configuration: math_h_config)
gnulib_sources = ['asnprintf.c', 'printf.c', 'printf-args.c', 'printf-parse.c', 'printf-frexp.c', 'printf-frexpl.c', 'vasnprintf.c', 'xsize.c']
if not gl_cv_func_frexp_works
gnulib_sources += ['frexp.c']
endif
if not gl_cv_func_frexpl_works
gnulib_sources += ['frexpl.c']
endif
gnulib_sources += other_needed_math_sources
# g-gnulib.h includes glib.h that requires some headers to be generated
gnulib_sources += [
'g-gnulib.h',
glib_built_headers,
]
gnulib_lib = static_library('gnulib', gnulib_sources,
dependencies : [libm],
include_directories : [configinc, glibinc, include_directories ('.')],
pic : true,
c_args : ['-DGCC_LINT=1', '-DLIBDIR="@0@"'.format(glib_libdir), '-DG_LOG_DOMAIN="GLib"',
glib_c_args_internal, extra_gnulib_args],
gnu_symbol_visibility : 'hidden',
)
gnulib_libm_dependency = [libm]