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-rw-r--r--ext/clogger_ext/extconf.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/ext/clogger_ext/extconf.rb b/ext/clogger_ext/extconf.rb
index 60c46a7..d87d8c2 100644
--- a/ext/clogger_ext/extconf.rb
+++ b/ext/clogger_ext/extconf.rb
@@ -17,6 +17,7 @@ begin
     $CPPFLAGS += '-D_POSIX_SOURCE_200112L'
     have_func('CLOCK_MONOTONIC', 'time.h')
   end
+  have_func('clock_gettime', 'time.h')
   have_func('localtime_r', 'time.h') or raise "localtime_r needed"
   have_func('gmtime_r', 'time.h') or raise "gmtime_r needed"
   have_func('rb_str_set_len', 'ruby.h')