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#serial 2
dnl From Paul Eggert.
# Define HAVE_ST_MTIM if struct stat has an st_mtim member.
AC_DEFUN(AC_STRUCT_ST_MTIM,
[AC_CACHE_CHECK([for st_mtim in struct stat], ac_cv_struct_st_mtim,
[AC_TRY_COMPILE([#include <sys/types.h>
#include <sys/stat.h>], [struct stat s; s.st_mtim;],
ac_cv_struct_st_mtim=yes,
ac_cv_struct_st_mtim=no)])
if test $ac_cv_struct_st_mtim = yes; then
if test x = y; then
# This code is deliberately never run via ./configure.
# FIXME: this is a hack to make autoheader put the corresponding
# HAVE_* undef for this symbol in config.h.in. This saves me the
# trouble of having to add the #undef in acconfig.h manually.
AC_CHECK_FUNCS(ST_MTIM)
fi
# Defining it this way (rather than via AC_DEFINE) short-circuits the
# autoheader check -- autoheader doesn't know it's already been taken
# care of by the hack above.
ac_kludge=HAVE_ST_MTIM
AC_DEFINE_UNQUOTED($ac_kludge)
fi
]
)
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