Implement mempcpy() in terms of memcpy() if mempcpy() is unavailable
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@ -313,6 +313,7 @@ AC_CHECK_FUNCS([ \
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lchown \
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llseek \
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lseek64 \
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mempcpy \
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nanosleep \
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personality \
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posix_fadvise \
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@ -28,6 +28,9 @@ extern double strtod_or_err(const char *str, const char *errmesg);
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extern long strtol_or_err(const char *str, const char *errmesg);
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extern unsigned long strtoul_or_err(const char *str, const char *errmesg);
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#ifndef HAVE_MEMPCPY
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extern void *mempcpy(void *restrict dest, const void *restrict src, size_t n);
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#endif
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#ifndef HAVE_STRNLEN
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extern size_t strnlen(const char *s, size_t maxlen);
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#endif
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@ -132,6 +132,13 @@ err:
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return -1;
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}
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#ifndef HAVE_MEMPCPY
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void *mempcpy(void *restrict dest, const void *restrict src, size_t n)
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{
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return ((char *)memcpy(dest, src, n)) + n;
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}
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#endif
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#ifndef HAVE_STRNLEN
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size_t strnlen(const char *s, size_t maxlen)
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{
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