vasilito
068a1ca63e
Bootloader fork rebase:
- Base changed from 0.1.0 pre-patched archive to upstream 1.0.0 tag (c7eeb9f)
- Applied 0001-redbear-local-forks.patch (Cargo.toml crate path redirects)
- Applied fix-uefi-alloc-panic.patch equivalents (4 panic!() -> graceful
error handling in src/main.rs)
- Applied P5-live-preload-cap-1gib.patch (1 GiB cap on live image preload)
- Skipped: P0 GPT partition scan (requires new module + integration),
P1 timeout/default-resolution, P2 live preload guard (subsumed by
panic fixes + cap), P3 live image safe read, P4 large ISO boot,
redox.patch — to be applied in dedicated rebase session.
firmware-loader/Cargo.toml: version 0.1.0 -> 0.3.0 (sync with other
Red Bear custom crates which are at 0.3.0).
fork-upstream-map.toml: bootloader back from PENDING_REBASE to 1.0.0
since the partial rebase matches upstream 1.0.0 content.
fork-upstream-map.toml: base restored to 'main' tracked (was correctly
tracked by build-redbear.sh).
98 lines
2.8 KiB
Plaintext
98 lines
2.8 KiB
Plaintext
# isnand.m4
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# serial 15
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dnl Copyright (C) 2007-2025 Free Software Foundation, Inc.
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dnl This file is free software; the Free Software Foundation
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dnl gives unlimited permission to copy and/or distribute it,
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dnl with or without modifications, as long as this notice is preserved.
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dnl This file is offered as-is, without any warranty.
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dnl Check how to get or define isnand().
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AC_DEFUN_ONCE([gl_FUNC_ISNAND],
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[
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AC_REQUIRE([gl_MATH_H_DEFAULTS])
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ISNAND_LIBM=
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gl_HAVE_ISNAND_NO_LIBM
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if test $gl_cv_func_isnand_no_libm = no; then
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gl_HAVE_ISNAND_IN_LIBM
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if test $gl_cv_func_isnand_in_libm = yes; then
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ISNAND_LIBM=-lm
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fi
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fi
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dnl The variable gl_func_isnand set here is used by isnan.m4.
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if test $gl_cv_func_isnand_no_libm = yes || test -n "$ISNAND_LIBM"; then
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gl_func_isnand=yes
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else
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gl_func_isnand=no
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HAVE_ISNAND=0
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fi
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AC_SUBST([ISNAND_LIBM])
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])
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dnl Check how to get or define isnand() without linking with libm.
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AC_DEFUN([gl_FUNC_ISNAND_NO_LIBM],
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[
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gl_HAVE_ISNAND_NO_LIBM
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gl_func_isnand_no_libm=$gl_cv_func_isnand_no_libm
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if test $gl_cv_func_isnand_no_libm = yes; then
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AC_DEFINE([HAVE_ISNAND_IN_LIBC], [1],
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[Define if the isnan(double) function is available in libc.])
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fi
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])
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dnl Prerequisites of replacement isnand definition. It does not need -lm.
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AC_DEFUN([gl_PREREQ_ISNAND],
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[
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AC_REQUIRE([gl_DOUBLE_EXPONENT_LOCATION])
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])
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dnl Test whether isnand() can be used with libm.
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AC_DEFUN([gl_HAVE_ISNAND_IN_LIBM],
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[
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AC_CACHE_CHECK([whether isnan(double) can be used with libm],
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[gl_cv_func_isnand_in_libm],
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[
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saved_LIBS="$LIBS"
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LIBS="$LIBS -lm"
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AC_LINK_IFELSE(
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[AC_LANG_PROGRAM(
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[[#include <math.h>
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#if (__GNUC__ >= 4) || (__clang_major__ >= 4)
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# undef isnand
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# define isnand(x) __builtin_isnan ((double)(x))
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#elif defined isnan
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# undef isnand
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# define isnand(x) isnan ((double)(x))
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#endif
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double x;]],
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[[return isnand (x);]])],
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[gl_cv_func_isnand_in_libm=yes],
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[gl_cv_func_isnand_in_libm=no])
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LIBS="$saved_LIBS"
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])
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])
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AC_DEFUN([gl_HAVE_ISNAND_NO_LIBM],
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[
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AC_CACHE_CHECK([whether isnan(double) can be used without linking with libm],
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[gl_cv_func_isnand_no_libm],
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[
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AC_LINK_IFELSE(
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[AC_LANG_PROGRAM(
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[[#include <math.h>
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#if (__GNUC__ >= 4) || (__clang_major__ >= 4)
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# undef isnand
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# define isnand(x) __builtin_isnan ((double)(x))
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#else
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# undef isnand
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# define isnand(x) isnan ((double)(x))
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#endif
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double x;]],
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[[return isnand (x);]])],
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[gl_cv_func_isnand_no_libm=yes],
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[gl_cv_func_isnand_no_libm=no])
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])
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])
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