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-rw-r--r--var/spack/repos/builtin/packages/pixman/clang.patch28
-rw-r--r--var/spack/repos/builtin/packages/pixman/package.py7
2 files changed, 35 insertions, 0 deletions
diff --git a/var/spack/repos/builtin/packages/pixman/clang.patch b/var/spack/repos/builtin/packages/pixman/clang.patch
new file mode 100644
index 0000000000..9de9c1be60
--- /dev/null
+++ b/var/spack/repos/builtin/packages/pixman/clang.patch
@@ -0,0 +1,28 @@
+--- pixman-0.34.0/test/utils-prng.c.bak 2018-02-01 00:34:15.757691302 +0100
++++ pixman-0.34.0/test/utils-prng.c 2018-02-01 00:36:38.285690995 +0100
+@@ -199,12 +199,24 @@
+ }
+ else
+ {
++
++#ifndef __has_builtin
++#define __has_builtin(x) 0
++#endif
++
+ #ifdef HAVE_GCC_VECTOR_EXTENSIONS
++# if !defined(__clang__) || __has_builtin(__builtin_shuffle)
+ const uint8x16 bswap_shufflemask =
+ {
+ 3, 2, 1, 0, 7, 6, 5, 4, 11, 10, 9, 8, 15, 14, 13, 12
+ };
+ randdata.vb = __builtin_shuffle (randdata.vb, bswap_shufflemask);
++# elif __has_builtin(__builtin_shufflevector)
++ randdata.vb = __builtin_shufflevector(randdata.vb, randdata.vb, 3, 2, 1, 0, 7, 6, 5, 4, 11, 10, 9, 8, 15, 14, 13, 12);
++# else
++# error "GCC_VECTOR_EXTENSION is defined, but neither __builtin_shuffle nor __builtin_shufflevector is supported!"
++# endif
++
+ store_rand_128_data (buf, &randdata, aligned);
+ buf += 16;
+ #else
+
diff --git a/var/spack/repos/builtin/packages/pixman/package.py b/var/spack/repos/builtin/packages/pixman/package.py
index d6cab39732..7107148688 100644
--- a/var/spack/repos/builtin/packages/pixman/package.py
+++ b/var/spack/repos/builtin/packages/pixman/package.py
@@ -40,6 +40,13 @@ class Pixman(AutotoolsPackage):
depends_on('pkgconfig', type='build')
depends_on('libpng')
+ # As discussed here:
+ # https://bugs.freedesktop.org/show_bug.cgi?id=104886
+ # __builtin_shuffle was removed in clang 5.0.
+ # From version 9.1 apple-clang is based on clang 5.0.
+ # Patch is obtained from above link.
+ patch('clang.patch', when='%clang@9.1.0-apple:')
+
def configure_args(self):
args = [
'--enable-libpng',