41 lines
1.2 KiB
Plaintext
41 lines
1.2 KiB
Plaintext
#serial 4
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# autoconf tests required for use of xstrtoumax.c
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AC_DEFUN([jm_AC_PREREQ_XSTRTOUMAX],
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[
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AC_REQUIRE([jm_AC_TYPE_INTMAX_T])
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AC_REQUIRE([jm_AC_TYPE_UINTMAX_T])
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AC_REQUIRE([jm_AC_TYPE_LONG_LONG])
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AC_REQUIRE([jm_AC_TYPE_UNSIGNED_LONG_LONG])
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AC_CHECK_DECLS([strtol, strtoul, strtoull, strtoimax, strtoumax])
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AC_CHECK_HEADERS(limits.h stdlib.h inttypes.h)
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AC_CACHE_CHECK([whether <inttypes.h> defines strtoumax as a macro],
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jm_cv_func_strtoumax_macro,
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AC_EGREP_CPP([inttypes_h_defines_strtoumax], [#include <inttypes.h>
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#ifdef strtoumax
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inttypes_h_defines_strtoumax
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#endif],
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jm_cv_func_strtoumax_macro=yes,
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jm_cv_func_strtoumax_macro=no))
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if test "$jm_cv_func_strtoumax_macro" != yes; then
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AC_REPLACE_FUNCS(strtoumax)
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fi
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dnl Only the replacement strtoumax invokes strtoul and strtoull,
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dnl so we need the replacements only if strtoumax does not exist.
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case "$jm_cv_func_strtoumax_macro,$ac_cv_func_strtoumax" in
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no,no)
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AC_REPLACE_FUNCS(strtoul)
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dnl We don't need (and can't compile) the replacement strtoull
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dnl unless the type `unsigned long long' exists.
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if test "$ac_cv_type_unsigned_long_long" = yes; then
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AC_REPLACE_FUNCS(strtoull)
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fi
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;;
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esac
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])
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