42 lines
1.2 KiB
Plaintext
42 lines
1.2 KiB
Plaintext
#serial 1
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dnl Cloned from xstrtoumax.m4. Keep these files in sync.
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# autoconf tests required for use of xstrtoimax.c
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AC_DEFUN([jm_AC_PREREQ_XSTRTOIMAX],
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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, strtoll, strtoimax])
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AC_CHECK_HEADERS(limits.h stdlib.h inttypes.h)
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AC_CACHE_CHECK([whether <inttypes.h> defines strtoimax as a macro],
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jm_cv_func_strtoimax_macro,
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AC_EGREP_CPP([inttypes_h_defines_strtoimax], [#include <inttypes.h>
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#ifdef strtoimax
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inttypes_h_defines_strtoimax
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#endif],
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jm_cv_func_strtoimax_macro=yes,
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jm_cv_func_strtoimax_macro=no))
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if test "$jm_cv_func_strtoimax_macro" != yes; then
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AC_REPLACE_FUNCS(strtoimax)
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fi
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dnl Only the replacement strtoimax invokes strtol and strtoll,
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dnl so we need the replacements only if strtoimax does not exist.
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case "$jm_cv_func_strtoimax_macro,$ac_cv_func_strtoimax" in
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no,no)
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AC_REPLACE_FUNCS(strtol)
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dnl We don't need (and can't compile) the replacement strtoll
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dnl unless the type `long long' exists.
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if test "$ac_cv_type_long_long" = yes; then
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AC_REPLACE_FUNCS(strtoll)
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fi
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;;
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esac
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])
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