| 1 | #serial 4
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| 2 |
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| 3 | # autoconf tests required for use of xstrtoumax.c
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| 4 |
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| 5 | AC_DEFUN([jm_AC_PREREQ_XSTRTOUMAX],
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| 6 | [
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| 7 | AC_REQUIRE([jm_AC_TYPE_INTMAX_T])
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| 8 | AC_REQUIRE([jm_AC_TYPE_UINTMAX_T])
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| 9 | AC_REQUIRE([jm_AC_TYPE_LONG_LONG])
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| 10 | AC_REQUIRE([jm_AC_TYPE_UNSIGNED_LONG_LONG])
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| 11 | AC_CHECK_DECLS([strtol, strtoul, strtoull, strtoimax, strtoumax])
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| 12 | AC_CHECK_HEADERS(limits.h stdlib.h inttypes.h)
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| 13 |
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| 14 | AC_CACHE_CHECK([whether <inttypes.h> defines strtoumax as a macro],
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| 15 | jm_cv_func_strtoumax_macro,
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| 16 | AC_EGREP_CPP([inttypes_h_defines_strtoumax], [#include <inttypes.h>
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| 17 | #ifdef strtoumax
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| 18 | inttypes_h_defines_strtoumax
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| 19 | #endif],
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| 20 | jm_cv_func_strtoumax_macro=yes,
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| 21 | jm_cv_func_strtoumax_macro=no))
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| 22 |
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| 23 | if test "$jm_cv_func_strtoumax_macro" != yes; then
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| 24 | AC_REPLACE_FUNCS(strtoumax)
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| 25 | fi
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| 26 |
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| 27 | dnl Only the replacement strtoumax invokes strtoul and strtoull,
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| 28 | dnl so we need the replacements only if strtoumax does not exist.
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| 29 | case "$jm_cv_func_strtoumax_macro,$ac_cv_func_strtoumax" in
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| 30 | no,no)
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| 31 | AC_REPLACE_FUNCS(strtoul)
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| 32 |
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| 33 | dnl We don't need (and can't compile) the replacement strtoull
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| 34 | dnl unless the type `unsigned long long' exists.
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| 35 | if test "$ac_cv_type_unsigned_long_long" = yes; then
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| 36 | AC_REPLACE_FUNCS(strtoull)
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| 37 | fi
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| 38 | ;;
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| 39 | esac
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| 40 | ])
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