1 files changed, 67 insertions, 0 deletions
diff --git a/debian/patches/float-endian-detection.patch b/debian/patches/float-endian-detection.patch
new file mode 100644
index 00000000..66bed0de
--- /dev/null
+++ b/debian/patches/float-endian-detection.patch
@@ -0,0 +1,67 @@
+Description: Fix detection of floating point endianness
+ See https://lists.gnu.org/archive/html/bug-gnulib/2013-12/msg00104.html
+Author: Alan Modra <amodra@gmail.com>
+Author: Colin Watson <cjwatson@ubuntu.com>
+Forwarded: no
+Last-Update: 2013-12-18
+
+Index: b/tests/test-isnanl.h
+===================================================================
+--- a/tests/test-isnanl.h
++++ b/tests/test-isnanl.h
+@@ -38,6 +38,12 @@
+ long double minus_zero = -0.0L;
+ #endif
+ 
++#ifdef __FLOAT_WORD_ORDER__
++# define FLOAT_BIG_ENDIAN (__FLOAT_WORD_ORDER__ != __ORDER_LITTLE_ENDIAN__)
++#else
++# define FLOAT_BIG_ENDIAN (LDBL_EXPBIT0_WORD < NWORDS / 2)
++#endif
++
+ int
+ main ()
+ {
+@@ -70,10 +76,10 @@
+ # if LDBL_EXPBIT0_BIT > 0
+     m.word[LDBL_EXPBIT0_WORD] ^= (unsigned int) 1 << (LDBL_EXPBIT0_BIT - 1);
+ # else
+-    m.word[LDBL_EXPBIT0_WORD + (LDBL_EXPBIT0_WORD < NWORDS / 2 ? 1 : - 1)]
++    m.word[LDBL_EXPBIT0_WORD + (FLOAT_BIG_ENDIAN ? 1 : - 1)]
+       ^= (unsigned int) 1 << (sizeof (unsigned int) * CHAR_BIT - 1);
+ # endif
+-    m.word[LDBL_EXPBIT0_WORD + (LDBL_EXPBIT0_WORD < NWORDS / 2 ? 1 : - 1)]
++    m.word[LDBL_EXPBIT0_WORD + (FLOAT_BIG_ENDIAN ? 1 : - 1)]
+       |= (unsigned int) 1 << LDBL_EXPBIT0_BIT;
+     ASSERT (isnanl (m.value));
+   }
+Index: b/tests/test-signbit.c
+===================================================================
+--- a/tests/test-signbit.c
++++ b/tests/test-signbit.c
+@@ -56,6 +56,12 @@
+ long double minus_zerol = -0.0L;
+ #endif
+ 
++#ifdef __FLOAT_WORD_ORDER__
++# define FLOAT_BIG_ENDIAN (__FLOAT_WORD_ORDER__ != __ORDER_LITTLE_ENDIAN__)
++#else
++# define FLOAT_BIG_ENDIAN (LDBL_EXPBIT0_WORD < NWORDS / 2)
++#endif
++
+ static void
+ test_signbitf ()
+ {
+@@ -176,10 +182,10 @@
+ # if LDBL_EXPBIT0_BIT > 0
+     m.word[LDBL_EXPBIT0_WORD] ^= (unsigned int) 1 << (LDBL_EXPBIT0_BIT - 1);
+ # else
+-    m.word[LDBL_EXPBIT0_WORD + (LDBL_EXPBIT0_WORD < NWORDS / 2 ? 1 : - 1)]
++    m.word[LDBL_EXPBIT0_WORD + (FLOAT_BIG_ENDIAN ? 1 : - 1)]
+       ^= (unsigned int) 1 << (sizeof (unsigned int) * CHAR_BIT - 1);
+ # endif
+-    m.word[LDBL_EXPBIT0_WORD + (LDBL_EXPBIT0_WORD < NWORDS / 2 ? 1 : - 1)]
++    m.word[LDBL_EXPBIT0_WORD + (FLOAT_BIG_ENDIAN ? 1 : - 1)]
+       |= (unsigned int) 1 << LDBL_EXPBIT0_BIT;
+     (void) signbit (m.value);
+     #undef NWORDS