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118c07e02e
This incorporates: 2020-06-27 getloadavg: don’t depend on fopen-gnu 2020-06-25 c-dtoastr, c-ldtoastr: new modules 2020-06-01 getloadavg: fix double-increment bug 2020-06-01 tempname: use getrandom, not getentropy 2020-05-31 tempname: merge from glibc and coreutils 2020-05-31 getentropy: work around a macOS and Solaris problem 2020-05-31 fnmatch: merge from glibc 2020-05-30 unistd: remove conflicting declaration of getrandom 2020-05-30 don't assume that UNICODE is not defined 2020-05-29 fix compilation error on native Windows 2020-05-28 avoid dynamic loading of Windows API functions when possible 2020-05-28 at-internal: make more robust in multithreaded applications 2020-05-28 getloadavg: make more robust in multithreaded applications 2020-05-27 getloadavg: make more robust in multithreaded applications 2020-05-26 count-one-bits: fix MSVC specific code 2020-05-25 getentropy, getrandom: new modules 2020-05-24 open, openat: really support O_CLOEXEC 2020-05-23 verify: document ‘assume’ better 2020-05-21 regex: configure better with "clang -fsanitize=leak" 2020-05-21 memmem: configure better with "clang -fsanitize=undefined" 2020-05-19 ftoastr: fix ifndef typo * build-aux/config.guess, build-aux/config.sub, doc/misc/texinfo.tex: * lib/count-one-bits.h, lib/ftoastr.c, lib/ftoastr.h: * lib/getloadavg.c, lib/gettimeofday.c, lib/libc-config.h: * lib/open.c, lib/openat-proc.c, lib/tempname.c, lib/tempname.h: * lib/unistd.in.h, lib/verify.h, m4/memmem.m4, m4/regex.m4: * m4/unistd_h.m4: Update from Gnulib. * lib/getrandom.c, lib/sys_random.in.h: * m4/getrandom.m4, m4/sys_random_h.m4: New files, copied from Gnulib. * lib/gnulib.mk.in, m4/gnulib-comp.m4: Regenerate.
65 lines
2.0 KiB
Plaintext
65 lines
2.0 KiB
Plaintext
# getrandom.m4 serial 5
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dnl Copyright 2020 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 Written by Paul Eggert.
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AC_DEFUN([gl_FUNC_GETRANDOM],
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[
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AC_REQUIRE([gl_SYS_RANDOM_H_DEFAULTS])
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AC_CHECK_FUNCS_ONCE([getrandom])
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if test "$ac_cv_func_getrandom" != yes; then
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HAVE_GETRANDOM=0
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else
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dnl On Solaris 11.4 the return type is 'int', not 'ssize_t'.
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AC_CACHE_CHECK([whether getrandom is compatible with its GNU+BSD signature],
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[gl_cv_func_getrandom_ok],
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[AC_COMPILE_IFELSE(
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[AC_LANG_PROGRAM(
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[[/* Additional includes are needed before <sys/random.h> on Mac OS X. */
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#include <sys/types.h>
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#include <stdlib.h>
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#include <sys/random.h>
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ssize_t getrandom (void *, size_t, unsigned int);
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]],
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[[]])
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],
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[gl_cv_func_getrandom_ok=yes],
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[gl_cv_func_getrandom_ok=no])
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])
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if test $gl_cv_func_getrandom_ok = no; then
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REPLACE_GETRANDOM=1
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fi
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fi
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case "$host_os" in
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mingw*)
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AC_CACHE_CHECK([whether the bcrypt library is guaranteed to be present],
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[gl_cv_lib_assume_bcrypt],
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[AC_COMPILE_IFELSE(
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[AC_LANG_PROGRAM(
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[[#include <windows.h>]],
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[[#if !(_WIN32_WINNT >= _WIN32_WINNT_WIN7)
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cannot assume it
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#endif
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]])
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],
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[gl_cv_lib_assume_bcrypt=yes],
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[gl_cv_lib_assume_bcrypt=no])
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])
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if test $gl_cv_lib_assume_bcrypt = yes; then
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AC_DEFINE([HAVE_LIB_BCRYPT], [1],
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[Define to 1 if the bcrypt library is guaranteed to be present.])
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LIB_GETRANDOM='-lbcrypt'
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else
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LIB_GETRANDOM='-ladvapi32'
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fi
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;;
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*)
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LIB_GETRANDOM= ;;
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esac
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AC_SUBST([LIB_GETRANDOM])
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])
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