Package: mpfr
Version: 2.4.2-2
Severity: serious
Tags: patch
Justification: no longer builds from source

mpfr fails to build on mips(el) with gcc-4.4. A full build log can be
found here:
https://buildd.debian.org/fetch.cgi?pkg=mpfr&arch=mipsel&ver=2.4.2-2&stamp=1260358474&file=log&as=raw

This is due to a change in GCC 4.4, the h asm constraint is not 
supported anymore on mips. For more details please see:
http://gcc.gnu.org/gcc-4.4/changes.html

The patch below fixes the problem by implementing the solution
recommended the previous web page. With it, mpfr builds and 
passes the testsuite.

--- mpfr-2.4.2.orig/mpfr-longlong.h
+++ mpfr-2.4.2/mpfr-longlong.h
@@ -1011,7 +1011,15 @@
 #endif /* __m88000__ */
 
 #if defined (__mips) && W_TYPE_SIZE == 32
-#if __GNUC__ > 2 || __GNUC_MINOR__ >= 7
+#if (__GNUC__ >= 5) || (__GNUC__ >= 4 && __GNUC_MINOR__ >= 4)
+#define umul_ppmm(w1, w0, u, v) \
+  do {                                                                 \
+    UDItype _r;                                                        \
+    _r = (UDItype) u * v;                                              \
+    (w1) = _r >> 32;                                                   \
+    (w0) = (USItype) _r;                                               \
+  } while (0)
+#elif __GNUC__ > 2 || __GNUC_MINOR__ >= 7
 #define umul_ppmm(w1, w0, u, v) \
   __asm__ ("multu %2,%3" : "=l" (w0), "=h" (w1) : "d" (u), "d" (v))
 #else
@@ -1024,7 +1032,16 @@
 #endif /* __mips */
 
 #if (defined (__mips) && __mips >= 3) && W_TYPE_SIZE == 64
-#if __GNUC__ > 2 || __GNUC_MINOR__ >= 7
+#if (__GNUC__ >= 5) || (__GNUC__ >= 4 && __GNUC_MINOR__ >= 4)
+typedef unsigned int UTItype __attribute__ ((mode (TI)));
+#define umul_ppmm(w1, w0, u, v) \
+  do {                                                                 \
+    UTItype _r;                                                        \
+    _r = (UTItype) u * v;                                              \
+    (w1) = _r >> 64;                                                   \
+    (w0) = (UDItype) _r;                                               \
+  } while (0)
+#elif __GNUC__ > 2 || __GNUC_MINOR__ >= 7
 #define umul_ppmm(w1, w0, u, v) \
   __asm__ ("dmultu %2,%3" : "=l" (w0), "=h" (w1) : "d" (u), "d" (v))
 #else

-- System Information:
Debian Release: squeeze/sid
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: mipsel (mips64)

Kernel: Linux 2.6.26-2-5kc-malta
Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968)
Shell: /bin/sh linked to /bin/bash



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