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27 lines
775 B
Plaintext
27 lines
775 B
Plaintext
#serial 2
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dnl From Paul Eggert.
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AC_PREREQ(2.13)
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# Define uintmax_t to `unsigned long' or `unsigned long long'
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# if <inttypes.h> does not exist.
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AC_DEFUN(jm_AC_TYPE_UINTMAX_T,
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[
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AC_REQUIRE([jm_AC_HEADER_INTTYPES_H])
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if test $jm_ac_cv_header_inttypes_h = no; then
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AC_CACHE_CHECK([for unsigned long long], ac_cv_type_unsigned_long_long,
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[AC_TRY_COMPILE([],
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[unsigned long long i = (unsigned long long) -1;],
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ac_cv_type_unsigned_long_long=yes,
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ac_cv_type_unsigned_long_long=no)])
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test $ac_cv_type_unsigned_long_long = yes \
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&& ac_type='unsigned long long' \
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|| ac_type='unsigned long'
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AC_DEFINE_UNQUOTED(uintmax_t, $ac_type,
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[ Define to \`unsigned long' or \`unsigned long long'
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if <inttypes.h> doesn't define.])
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fi
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])
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