From bc639fe60b9c6cb861b72b7a14d20f7e680c072f Mon Sep 17 00:00:00 2001
From: Tomoyasu Nojiri <68096132+t-nojiri@users.noreply.github.com>
Date: Fri, 29 Jan 2021 17:37:00 +0900
Subject: wtdbg2: enable build for aarch64 (#21390)

Use sse2neon to maintain the same API calls for aarch64
---
 .../builtin/packages/wtdbg2/for_aarch64.patch      | 23 ++++++++++++++++++++++
 var/spack/repos/builtin/packages/wtdbg2/package.py |  8 ++++++++
 2 files changed, 31 insertions(+)
 create mode 100644 var/spack/repos/builtin/packages/wtdbg2/for_aarch64.patch

diff --git a/var/spack/repos/builtin/packages/wtdbg2/for_aarch64.patch b/var/spack/repos/builtin/packages/wtdbg2/for_aarch64.patch
new file mode 100644
index 0000000000..425edc927f
--- /dev/null
+++ b/var/spack/repos/builtin/packages/wtdbg2/for_aarch64.patch
@@ -0,0 +1,23 @@
+--- spack-src/ksw.c.bak	2019-01-21 10:35:00.000000000 +0900
++++ spack-src/ksw.c	2021-01-29 16:24:06.281952856 +0900
+@@ -25,7 +25,7 @@
+ 
+ #include <stdlib.h>
+ #include <stdint.h>
+-#include <emmintrin.h>
++#include <sse2neon.h>
+ #include "ksw.h"
+ 
+ #ifdef USE_MALLOC_WRAPPERS
+--- spack-src/poacns.h.bak	2019-01-21 10:35:00.000000000 +0900
++++ spack-src/poacns.h	2021-01-29 16:23:27.631956791 +0900
+@@ -25,8 +25,7 @@
+ #include "chararray.h"
+ #include "list.h"
+ #include "hashset.h"
+-#include <emmintrin.h>
+-#include <tmmintrin.h>
++#include <sse2neon.h>
+ 
+ #if __BYTE_ORDER == 1234
+ //#pragma message(" ** " __FILE__ " has been tested in LITTLE_ENDIAN **\n")
diff --git a/var/spack/repos/builtin/packages/wtdbg2/package.py b/var/spack/repos/builtin/packages/wtdbg2/package.py
index ad81c4d52f..299ad7f34c 100644
--- a/var/spack/repos/builtin/packages/wtdbg2/package.py
+++ b/var/spack/repos/builtin/packages/wtdbg2/package.py
@@ -15,6 +15,14 @@ class Wtdbg2(MakefilePackage):
     version('2.3', sha256='fb61d38a4c60a39b3b194e63b855141c05ddcbe71cf244ae613766a9b0a56621')
 
     depends_on('zlib')
+    depends_on('sse2neon', when='target=aarch64:')
+
+    patch('for_aarch64.patch', when='target=aarch64:')
+
+    def edit(self, spec, prefix):
+        if spec.target.family == 'aarch64':
+            makefile = FileFilter('Makefile')
+            makefile.filter('-mpopcnt -msse4.2', '')
 
     def install(self, spec, prefix):
         make('install', 'BIN=%s' % prefix.bin)
-- 
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