build: include usleep gnulib module

Without this module, attempts to sleep for 1 or more seconds
on mingw instead become a no-delay no-op.

* bootstrap.conf (gnulib_modules): Add usleep.

diff --git a/bootstrap.conf b/bootstrap.conf
index ca9332da1da1cc3f35c09981cf70021cc7f26bab..d807e405431fe8c791ea4d258f16a14a54ce1af5 100644 (file)
--- a/bootstrap.conf
+++ b/bootstrap.conf
@@ -58,6 +58,7 @@ sys_stat
 time_r
 timegm
 useless-if-before-free
+usleep
 vasprintf
 verify
 vc-list-files