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diff -rNu rpm-4.6.0-orig/lib/rpmrc.c rpm-4.6.0/lib/rpmrc.c
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--- rpm-4.6.0-orig/lib/rpmrc.c	2009-03-09 21:54:49.000000000 -0500
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+++ rpm-4.6.0/lib/rpmrc.c	2009-03-11 12:00:44.000000000 -0500
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@@ -763,6 +763,31 @@
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     return rc;
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 }
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+#if defined(__linux__) && defined(__sparc__)
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+static int is_sun4v()
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+{
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+	char buffer[4096], *p;
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+	int fd = open("/proc/cpuinfo", O_RDONLY);
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+	if (read(fd, &buffer, sizeof(buffer) - 1) == -1) {
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+		rpmlog(RPMLOG_WARNING, _("read(/proc/cpuinfo) failed\n"));
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+		close(fd);
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+		return 0;
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+	}
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+	close(fd);
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+
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+	p = strstr(buffer, "type");
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+	p = strtok(p, "\n");
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+	p = strstr(p, "sun");
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+	if (p == NULL) {
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+		rpmlog(RPMLOG_WARNING, _("/proc/cpuinfo has no 'type' line\n"));
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+		return 0;
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+	} else if (strcmp(p, "sun4v") == 0) {
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+		return 1;
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+	}
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+	return 0;
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+}
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+#endif
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+
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 #	if defined(__linux__) && defined(__i386__)
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 #include <setjmp.h>
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@@ -1179,6 +1204,13 @@
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 		personality(oldpers);
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 	    }
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 	}
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+	if (is_sun4v()){
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+	    if (strcmp(un.machine, "sparcv9") == 0 || strcmp(un.machine, "sparc") == 0 ) {
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+	        strcpy(un.machine, "sparcv9v");
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+	    } else if (strcmp(un.machine, "sparc64") == 0 ) {
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+	        strcpy(un.machine, "sparc64v");
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+	    }
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+	}
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 #	endif	/* sparc*-linux */
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 #	if defined(__GNUC__) && defined(__alpha__)
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diff -rNu rpm-4.6.0-orig/rpmrc.in rpm-4.6.0/rpmrc.in
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--- rpm-4.6.0-orig/rpmrc.in	2009-03-09 21:54:49.000000000 -0500
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+++ rpm-4.6.0/rpmrc.in	2009-03-11 11:50:49.000000000 -0500
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@@ -312,7 +312,7 @@
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 arch_compat: sun4d: sparc
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 arch_compat: sun4m: sparc
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 arch_compat: sun4u: sparc64
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-arch_compat: sparc64v: sparc64
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+arch_compat: sparc64v: sparc64 sparcv9v
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 arch_compat: sparc64: sparcv9
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 arch_compat: sparcv9v: sparcv9
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 arch_compat: sparcv9: sparcv8