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-rw-r--r--configure.in2
1 files changed, 1 insertions, 1 deletions
diff --git a/configure.in b/configure.in
index e4aa446340..b4d0b5110f 100644
--- a/configure.in
+++ b/configure.in
@@ -308,7 +308,7 @@ AC_CHECK_FUNCS(fmod killpg drand48 random wait4 waitpid syscall chroot fsync\
setrgid setegid setregid setresgid pause lchown lchmod\
getpgrp setpgrp getpgid setpgid getgroups getpriority getrlimit\
dlopen sigprocmask sigaction _setjmp setsid telldir seekdir fchmod\
- mktime timegm)
+ mktime timegm cosh sinh tanh)
AC_STRUCT_TIMEZONE
AC_CACHE_CHECK(for struct tm.tm_gmtoff, rb_cv_member_struct_tm_tm_gmtoff,
[AC_TRY_COMPILE([#include <time.h>],