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| author | Andy Wingo <wingo@pobox.com> | 2021-01-20 21:52:54 +0100 |
|---|---|---|
| committer | Andy Wingo <wingo@pobox.com> | 2021-01-20 23:03:56 +0100 |
| commit | a91b95cca2d397c84f8b9bbd602d40209a7092ce (patch) | |
| tree | 2c286a291f5a2b812d6e216be10936f2709d59cf /m4/sys_random_h.m4 | |
| parent | 758b31994cff582c7e8785b4cc2240dbf3573837 (diff) | |
| download | guile-a91b95cca2d397c84f8b9bbd602d40209a7092ce.tar.gz | |
Update Gnulib to v0.1-4379-g2ef5a9b4b
Also bump required autoconf version to 2.64, as required by Gnulib.
Diffstat (limited to 'm4/sys_random_h.m4')
| -rw-r--r-- | m4/sys_random_h.m4 | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/m4/sys_random_h.m4 b/m4/sys_random_h.m4 new file mode 100644 index 000000000..45e0469ba --- /dev/null +++ b/m4/sys_random_h.m4 @@ -0,0 +1,53 @@ +# sys_random_h.m4 serial 5 +dnl Copyright (C) 2020-2021 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_HEADER_SYS_RANDOM], +[ + AC_REQUIRE([gl_SYS_RANDOM_H_DEFAULTS]) + dnl <sys/random.h> is always overridden, because of GNULIB_POSIXCHECK. + gl_CHECK_NEXT_HEADERS([sys/random.h]) + if test $ac_cv_header_sys_random_h = yes; then + HAVE_SYS_RANDOM_H=1 + else + HAVE_SYS_RANDOM_H=0 + fi + AC_SUBST([HAVE_SYS_RANDOM_H]) + + m4_ifdef([gl_UNISTD_H_DEFAULTS], [AC_REQUIRE([gl_UNISTD_H_DEFAULTS])]) + if test $ac_cv_header_sys_random_h = yes; then + UNISTD_H_HAVE_SYS_RANDOM_H=1 + fi + + dnl Check for declarations of anything we want to poison if the + dnl corresponding gnulib module is not in use. + gl_WARN_ON_USE_PREPARE([[ +#if HAVE_SYS_RANDOM_H +/* Additional includes are needed before <sys/random.h> on uClibc + and Mac OS X. */ +# include <sys/types.h> +# include <stdlib.h> +# include <sys/random.h> +#endif + ]], + [getrandom]) +]) + +AC_DEFUN([gl_SYS_RANDOM_MODULE_INDICATOR], +[ + dnl Use AC_REQUIRE here, so that the default settings are expanded once only. + AC_REQUIRE([gl_SYS_RANDOM_H_DEFAULTS]) + gl_MODULE_INDICATOR_SET_VARIABLE([$1]) + dnl Define it also as a C macro, for the benefit of the unit tests. + gl_MODULE_INDICATOR_FOR_TESTS([$1]) +]) + +AC_DEFUN([gl_SYS_RANDOM_H_DEFAULTS], +[ + GNULIB_GETRANDOM=0; AC_SUBST([GNULIB_GETRANDOM]) + dnl Assume proper GNU behavior unless another module says otherwise. + HAVE_GETRANDOM=1; AC_SUBST([HAVE_GETRANDOM]) + REPLACE_GETRANDOM=0; AC_SUBST([REPLACE_GETRANDOM]) +]) |