bkuhls ea9f8b7746

[libc] Fix detection of cfloat128 (#185486) ...

Building compiler-rt with aarch64-buildroot-linux-gnu-gcc 15.2 causes a
build error:
```
compiler-rt-22.1.0/cmake/Modules/../../libc/src/__support/CPP/type_traits/is_complex.h:44:31:
 error: 'cfloat128' was not declared in this scope; did you mean 'float128'? [-Wtemplate-body]
```
According to
https://gcc.gnu.org/onlinedocs/gcc-15.2.0/gcc/Floating-Types.html
__float128 is not available on aarch64.

Analyzing the gcc defines for aarch64 seems to prove it:
```
$ aarch64-buildroot-linux-gnu-gcc -v
Target: aarch64-buildroot-linux-gnu
gcc version 15.2.0 (Buildroot 2026.02-114-gdadec9da56)

$ echo | aarch64-buildroot-linux-gnu-gcc -dM -E - | grep __GCC_IEC_559_COMPLEX
  #define __GCC_IEC_559_COMPLEX 2

$ echo | aarch64-buildroot-linux-gnu-gcc -dM -E - | grep __STDC_IEC_60559_COMPLEX__
  #define __STDC_IEC_60559_COMPLEX__ 201404L

$ echo | aarch64-buildroot-linux-gnu-gcc -dM -E - | grep -i float128
$
```
In contrast gcc for x86_64:
```
$ x86_64-buildroot-linux-gnu-gcc -v
Target: x86_64-buildroot-linux-gnu
gcc version 15.2.0 (Buildroot 2026.02-112-gd12ac02486)

$ echo | x86_64-buildroot-linux-gnu-gcc -dM -E - | grep __GCC_IEC_559_COMPLEX
  #define __GCC_IEC_559_COMPLEX 2

$ echo | x86_64-buildroot-linux-gnu-gcc -dM -E - | grep __STDC_IEC_60559_COMPLEX__
  #define __STDC_IEC_60559_COMPLEX__ 201404L

$ echo | x86_64-buildroot-linux-gnu-gcc -dM -E - | grep -i float128
  #define __SIZEOF_FLOAT128__ 16
```
This patch changes the or-condition to an and-condition for
    \_\_STDC_IEC_60559_COMPLEX\_\_ and \_\_SIZEOF_FLOAT128\_\_.

Signed-off-by: Bernd Kuhls <bernd@kuhls.net>

2026-03-11 10:12:23 -04:00

..

arpa

[libc] implement inet_addr (#167708)

2025-11-18 10:17:19 +08:00

llvm-libc-macros

[libc] Fix detection of cfloat128 (#185486)

2026-03-11 10:12:23 -04:00

llvm-libc-types

[libc] Add more macro/type declarations to Elf headers. (#185348)

2026-03-09 15:12:54 -07:00

netinet

[libc] add IPPROTO related macros (#161855)

2025-10-06 11:46:45 +08:00

sys

[libc] Add <sys/un.h> header. (#182622)

2026-03-08 06:22:36 +00:00

__llvm-libc-common.h

[libc] Remove unused _Thread_local define from headers. (#156967)

2025-09-04 14:02:43 -07:00

assert.h.def

…

assert.yaml

…

CMakeLists.txt

[libc] Add more macro/type declarations to Elf headers. (#185348)

2026-03-09 15:12:54 -07:00

complex.h.def

…

complex.yaml

…

ctype.yaml

…

dirent.yaml

[libc] Remove trivial .h.def files (#149466)

2025-07-18 11:35:09 -07:00

dlfcn.yaml

[libc] Fix typo and amend restrict qualifier (#152410)

2025-08-07 16:45:14 -07:00

elf.h.def

…

elf.yaml

[libc] Add more macro/type declarations to Elf headers. (#185348)

2026-03-09 15:12:54 -07:00

endian.h.def

…

endian.yaml

…

errno.h.def

[libc] move abs_timesout and monotonicity out of linux dir (#167719)

2025-12-08 22:14:12 +05:30

errno.yaml

…

fcntl.h.def

…

fcntl.yaml

…

features.h.def

…

features.yaml

…

fenv.yaml

…

float.h.def

…

float.yaml

…

inttypes.h.def

…

inttypes.yaml

…

limits.h.def

…

limits.yaml

…

link.h.def

[libc] Provide a minimal implementation of elf.h (#172766)

2026-01-12 10:56:49 -08:00

link.yaml

[libc] Provide a minimal implementation of elf.h (#172766)

2026-01-12 10:56:49 -08:00

locale.h.def

…

locale.yaml

[libc][hdrgen] Sort identifiers with leading underscores specially (#165745)

2025-10-30 11:49:22 -07:00

malloc.yaml

…

math.h.def

…

math.yaml

[libc][math][c23] Add rsqrtf() function (#159615)

2025-10-08 23:37:01 -04:00

nl_types.yaml

[libc] Add macros definitions for <nl_types.h> (#164474)

2025-10-22 09:41:03 -07:00

poll.h.def

…

poll.yaml

…

pthread.yaml

[libc] Add pthread_getattr_np declaration (#178549)

2026-01-29 10:33:19 -08:00

sched.h.def

…

sched.yaml

[libc] Correct standard for getcpu (#153982)

2025-08-16 16:05:45 -07:00

search.yaml

[libc] Remove trivial .h.def files (#149466)

2025-07-18 11:35:09 -07:00

setjmp.yaml

[libc] Remove trivial .h.def files (#149466)

2025-07-18 11:35:09 -07:00

signal.h.def

…

signal.yaml

…

spawn.yaml

[libc] Remove trivial .h.def files (#149466)

2025-07-18 11:35:09 -07:00

stdbit.h.def

…

stdbit.yaml

…

stdckdint.h.def

…

stdckdint.yaml

…

stdfix.h.def

…

stdfix.yaml

[libc] add missing headers in stdfix (#162078)

2025-10-24 10:42:31 -07:00

stdint.h.def

…

stdint.yaml

…

stdio.h.def

…

stdio.yaml

[libc][hdrgen] Sort identifiers with leading underscores specially (#165745)

2025-10-30 11:49:22 -07:00

stdlib-malloc.yaml

[libc] Declare reallocarray in stdlib.h / malloc.h (#184223)

2026-03-02 13:47:43 -08:00

stdlib.h.def

…

stdlib.yaml

[libc] Move mbtowc, mbstowcs and inverse functions to stdlib.h (#168455)

2025-11-17 15:43:42 -08:00

string.yaml

[libc][hdrgen] Sort identifiers with leading underscores specially (#165745)

2025-10-30 11:49:22 -07:00

strings.yaml

[libc] Remove trivial .h.def files (#149466)

2025-07-18 11:35:09 -07:00

sysexits.h.def

…

sysexits.yaml

…

termios.h.def

…

termios.yaml

…

threads.yaml

[libc] Remove trivial .h.def files (#149466)

2025-07-18 11:35:09 -07:00

time.h.def

…

time.yaml

[libc] Add missing const qualifiers to a few functions in <time.h> (#185311)

2026-03-10 10:08:55 -07:00

uchar.yaml

[libc] Remove trivial .h.def files (#149466)

2025-07-18 11:35:09 -07:00

Uefi.yaml

[libc][uefi] add crt1 (#132150)

2025-05-09 09:02:33 -07:00

unistd.h.def

…

unistd.yaml

[libc] Add support for getpagesize. (#171713)

2025-12-11 14:27:50 -08:00

wchar.h.def

…

wchar.yaml

[libc] Move mbtowc, mbstowcs and inverse functions to stdlib.h (#168455)

2025-11-17 15:43:42 -08:00

wctype.yaml

[libc] Implement iswspace entrypoint (#185269)

2026-03-11 06:56:54 -07:00