Accepting request 211829 from openSUSE:Factory:PowerLE

The "gnulib" package contains a number of floating-point test cases
that do not work correctly with the PowerPC long double ("double double")
format.  These tests "accidentally" succeeded anyway in the big-endian
variant, but are now actually failing in little-endian mode.

As is usual for gnulib, those tests end up copied into the source code
of various packages that use gnulib, including coreutils, findutils,
grep, and libunistring.

A patch to fix the tests for ppc64le has been submitted to upstream
to the bug-gnulib mailing list.  We'll work with upstream of the
other affected packages to make sure the copies are refreshed.

- coreutils-gnulib-tests-ppc64le.patch: Fix imported gnulib long double
  math tests for little-endian PowerPC.

OBS-URL: https://build.opensuse.org/request/show/211829
OBS-URL: https://build.opensuse.org/package/show/Base:System/coreutils?expand=0&rev=217

coreutils-gnulib-tests-ppc64le.patch

@@ -0,0 +1,41 @@
+diff --git a/gnulib-tests/test-isnanl.h b/gnulib-tests/test-isnanl.h
+index 06e6a7c..2df10f8 100644
+--- a/gnulib-tests/test-isnanl.h
++++ b/gnulib-tests/test-isnanl.h
+@@ -51,6 +51,15 @@ main ()
+   /* A bit pattern that is different from a Quiet NaN.  With a bit of luck,
+      it's a Signalling NaN.  */
+   {
++#if defined __powerpc__ && LDBL_MANT_DIG == 106
++    /* This is PowerPC "double double", a pair of two doubles.  Inf and Nan are
++       represented as the corresponding 64-bit IEEE values in the first double;
++       the second is ignored.  Manipulate only the first double.  */
++    #undef NWORDS
++    #define NWORDS \
++      ((sizeof (double) + sizeof (unsigned int) - 1) / sizeof (unsigned int))
++#endif
++
+     memory_long_double m;
+     m.value = NaNl ();
+ # if LDBL_EXPBIT0_BIT > 0
+diff --git a/gnulib-tests/test-signbit.c b/gnulib-tests/test-signbit.c
+index e8ea097..7e24292 100644
+--- a/gnulib-tests/test-signbit.c
++++ b/gnulib-tests/test-signbit.c
+@@ -151,6 +151,16 @@ test_signbitl ()
+     #define NWORDS \
+       ((sizeof (long double) + sizeof (unsigned int) - 1) / sizeof (unsigned int))
+     typedef union { long double value; unsigned int word[NWORDS]; } memory_long_double;
++
++#if defined __powerpc__ && LDBL_MANT_DIG == 106
++    /* This is PowerPC "double double", a pair of two doubles.  Inf and Nan are
++       represented as the corresponding 64-bit IEEE values in the first double;
++       the second is ignored.  Manipulate only the first double.  */
++    #undef NWORDS
++    #define NWORDS \
++      ((sizeof (double) + sizeof (unsigned int) - 1) / sizeof (unsigned int))
++#endif
++
+     memory_long_double m;
+     m.value = zerol / zerol;
+ # if LDBL_EXPBIT0_BIT > 0

coreutils-testsuite.changes

@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Thu Dec 19 23:37:39 UTC 2013 - uweigand@de.ibm.com
+
+- coreutils-gnulib-tests-ppc64le.patch: Fix imported gnulib long double
+  math tests for little-endian PowerPC.
+
 -------------------------------------------------------------------
 Thu Dec 19 22:54:26 UTC 2013 - mail@bernhard-voelker.de
 

coreutils-testsuite.spec

@@ -106,6 +106,9 @@ Patch200:       coreutils-gnulib-tests-fix-nap-race.patch
 # a bit more to avoid failures on OBS.
 Patch201:       coreutils-gnulib-tests-fix-nap-race-obs.patch
 
+# Fix imported gnulib long double math tests for little-endian PowerPC
+Patch202:       coreutils-gnulib-tests-ppc64le.patch
+
 # ================================================
 %description
 These are the GNU core utilities.  This package is the union of
@@ -136,6 +139,7 @@ the GNU fileutils, sh-utils, and textutils packages.
 
 %patch200
 %patch201
+%patch202 -p1
 
 xz -dc %{S:2} >po/de.po
 

coreutils.changes

@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Thu Dec 19 23:37:39 UTC 2013 - uweigand@de.ibm.com
+
+- coreutils-gnulib-tests-ppc64le.patch: Fix imported gnulib long double
+  math tests for little-endian PowerPC.
+
 -------------------------------------------------------------------
 Thu Dec 19 22:54:26 UTC 2013 - mail@bernhard-voelker.de
 

coreutils.spec

@@ -106,6 +106,9 @@ Patch200:       coreutils-gnulib-tests-fix-nap-race.patch
 # a bit more to avoid failures on OBS.
 Patch201:       coreutils-gnulib-tests-fix-nap-race-obs.patch
 
+# Fix imported gnulib long double math tests for little-endian PowerPC
+Patch202:       coreutils-gnulib-tests-ppc64le.patch
+
 # ================================================
 %description
 These are the GNU core utilities.  This package is the union of
@@ -136,6 +139,7 @@ the GNU fileutils, sh-utils, and textutils packages.
 
 %patch200
 %patch201
+%patch202 -p1
 
 xz -dc %{S:2} >po/de.po