diff options
Diffstat (limited to 'aclocal/getrandom.m4')
| -rw-r--r-- | aclocal/getrandom.m4 | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/aclocal/getrandom.m4 b/aclocal/getrandom.m4 new file mode 100644 index 0000000..bc0fe16 --- /dev/null +++ b/aclocal/getrandom.m4 @@ -0,0 +1,16 @@ +dnl Checks for getrandom support (glibc 2.25+, musl 1.1.20+) +dnl +AC_DEFUN([AC_GETRANDOM], [ + AC_MSG_CHECKING(for getrandom()) + AC_LINK_IFELSE( + [AC_LANG_PROGRAM([[ + #include <stdlib.h> /* for NULL */ + #include <sys/random.h> + ]], + [[ return getrandom(NULL, 0U, 0U); ]] )], + [AC_DEFINE([HAVE_GETRANDOM], [1], [Define to 1 if you have the `getrandom' function.]) + AC_MSG_RESULT([yes])], + [AC_MSG_RESULT([no])]) + + AC_SUBST(HAVE_GETRANDOM) +]) |