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@@ -0,0 +1,20 @@
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+--- ruby-2.0.0-p247.orig/io.c 2013-06-12 16:23:39.000000000 +0200
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++++ ruby-2.0.0-p247/io.c 2013-10-26 23:02:53.000000000 +0200
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+@@ -8483,7 +8483,7 @@ do_ioctl(int fd, ioctl_req_t cmd, long n
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+
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+ #define DEFULT_IOCTL_NARG_LEN (256)
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+
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+-#ifdef __linux__
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++#if defined(__GLIBC__) && defined(__linux__)
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+ static long
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+ linux_iocparm_len(ioctl_req_t cmd)
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+ {
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+@@ -8516,7 +8516,7 @@ ioctl_narg_len(ioctl_req_t cmd)
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+ #endif
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+ #ifdef IOCPARM_LEN
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+ len = IOCPARM_LEN(cmd); /* on BSDish systems we're safe */
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+-#elif defined(__linux__)
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++#elif defined(__GLIBC__) && defined(__linux__)
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+ len = linux_iocparm_len(cmd);
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+ #else
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+ /* otherwise guess at what's safe */
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