103 lines
3.0 KiB
Diff
103 lines
3.0 KiB
Diff
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--- config.h.in
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+++ config.h.in
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@@ -215,4 +215,7 @@
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#undef HAVE_LIBIDN
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+/* Defined if economical random device is available. */
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+#undef HAVE_DEV_ERANDOM
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+
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/* Define if inlined system calls are available. */
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#undef HAVE_INLINED_SYSCALLS
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--- configure.in
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+++ configure.in
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@@ -264,4 +264,11 @@
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AC_SUBST(all_warnings)
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+dnl See whether the user wants to disable checking for /dev/erandom
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+AC_ARG_ENABLE([dev-erandom],
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+ AC_HELP_STRING([--disable-dev-erandom],
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+ [disable testing for /dev/erandom]),
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+ [try_dev_erandom=$enableval],
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+ [try_dev_erandom=yes])
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+
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AC_CANONICAL_HOST
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@@ -1974,4 +1981,19 @@
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AC_SUBST(sizeof_long_double)
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+dnl check whether we have an economical random device
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+if test "$try_dev_erandom" = yes ; then
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+ AC_CACHE_CHECK(for economical random device, ac_cv_have_dev_random,
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+ [if test -r "/dev/erandom" ; then
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+ ac_cv_have_dev_erandom=yes; else ac_cv_have_dev_erandom=no; fi])
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+ if test "$ac_cv_have_dev_erandom" = yes; then
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+ AC_DEFINE(HAVE_DEV_ERANDOM,1,
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+ [defined if the system supports an economical random device])
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+ fi
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+else
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+ AC_MSG_CHECKING(for economical random device)
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+ ac_cv_have_dev_erandom=no
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+ AC_MSG_RESULT(has been disabled)
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+fi
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+
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### End of automated tests.
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### Now run sysdeps configure fragments.
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--- configure
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+++ configure
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@@ -884,6 +884,7 @@
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--enable-kernel=VERSION compile for compatibility with kernel not older than
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VERSION
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--enable-all-warnings enable all useful warnings gcc can issue
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+ --disable-dev-erandom disable testing for /dev/erandom
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Optional Packages:
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--with-PACKAGE[=ARG] use PACKAGE [ARG=yes]
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@@ -1697,6 +1698,14 @@
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fi;
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+# Check whether --enable-dev-erandom or --disable-dev-erandom was given.
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+if test "${enable_dev_erandom+set}" = set; then
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+ enableval="$enable_dev_erandom"
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+ try_dev_erandom=$enableval
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+else
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+ try_dev_erandom=yes
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+fi;
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+
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# Make sure we can run config.sub.
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$ac_config_sub sun4 >/dev/null 2>&1 ||
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{ { echo "$as_me:$LINENO: error: cannot run $ac_config_sub" >&5
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@@ -7449,6 +7458,32 @@
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sizeof_long_double=$ac_cv_sizeof_long_double
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+if test "$try_dev_erandom" = yes ; then
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+ echo "$as_me:$LINENO: checking for economical random device" >&5
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+echo $ECHO_N "checking for economical random device... $ECHO_C" >&6
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+if test "${ac_cv_have_dev_random+set}" = set; then
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+ echo $ECHO_N "(cached) $ECHO_C" >&6
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+else
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+ if test -r "/dev/erandom" ; then
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+ ac_cv_have_dev_erandom=yes; else ac_cv_have_dev_erandom=no; fi
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+fi
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+echo "$as_me:$LINENO: result: $ac_cv_have_dev_random" >&5
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+echo "${ECHO_T}$ac_cv_have_dev_random" >&6
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+ if test "$ac_cv_have_dev_erandom" = yes; then
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+
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+cat >>confdefs.h <<\_ACEOF
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+#define HAVE_DEV_ERANDOM 1
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+_ACEOF
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+
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+ fi
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+else
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+ echo "$as_me:$LINENO: checking for economical random device" >&5
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+echo $ECHO_N "checking for economical random device... $ECHO_C" >&6
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+ ac_cv_have_dev_erandom=no
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+ echo "$as_me:$LINENO: result: has been disabled" >&5
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+echo "${ECHO_T}has been disabled" >&6
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+fi
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+
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### End of automated tests.
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### Now run sysdeps configure fragments.
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