From 7c29a0724fa750a1f4de0c7617edc3b63cdd6606 Mon Sep 17 00:00:00 2001
From: Seungha Yang <seungha@centricular.com>
Date: Tue, 21 Jun 2022 03:14:39 +0900
Subject: meson: Enable only SSE and MMX backends for Windows

Other backends would not work or do not make sense
---
 meson.build     | 12 +++++++++---
 orc/meson.build | 14 +++++++-------
 2 files changed, 16 insertions(+), 10 deletions(-)

diff --git a/meson.build b/meson.build
index dc65961..b29dddd 100644
--- a/meson.build
+++ b/meson.build
@@ -41,9 +41,15 @@ endif
 # Passing this through the command line would be too messy
 cdata.set('ORC_API_EXPORT', export_define)
 
-all_backends = ['sse', 'mmx', 'altivec', 'neon', 'mips', 'c64x'] # 'arm'
+all_backends = ['sse', 'mmx']
+extra_backends = ['altivec', 'neon', 'mips', 'c64x'] # 'arm'
 enabled_backends = []
 
+host_system = host_machine.system()
+if host_system != 'windows'
+  all_backends += extra_backends
+endif
+
 backend = get_option('orc-backend')
 foreach b : all_backends
   if backend == 'all' or backend == b
@@ -53,14 +59,14 @@ foreach b : all_backends
 endforeach
 
 cpu_family = host_machine.cpu_family()
-host_system = host_machine.system()
 if cpu_family == 'x86'
   cdata.set('HAVE_I386', true)
 elif cpu_family == 'x86_64'
   cdata.set('HAVE_AMD64', true)
 elif cpu_family == 'ppc' or cpu_family == 'ppc64'
   cdata.set('HAVE_POWERPC', true)
-elif cpu_family == 'arm'
+# TODO: Windows ARM device is not tested
+elif cpu_family == 'arm' and host_system != 'windows'
   cdata.set('HAVE_ARM', true)
 # TODO: Add support for Windows
 # https://gitlab.freedesktop.org/gstreamer/orc/-/issues/38
diff --git a/orc/meson.build b/orc/meson.build
index 626da63..12e6042 100644
--- a/orc/meson.build
+++ b/orc/meson.build
@@ -53,37 +53,37 @@ orc_headers = [
 ]
 install_headers(orc_headers, subdir : 'orc-' + orc_api + '/orc')
 
-if backend == 'sse' or backend == 'all'
+if 'sse' in enabled_backends
   orc_sources += ['orcsse.c', 'orcrules-sse.c', 'orcprogram-sse.c',
     'orcx86.c', 'orcx86insn.c']
 endif
 
-if backend == 'mmx' or backend == 'all'
+if 'mmx' in enabled_backends
   # we assume it is ok to include the same file (orcx86) twice
   # in case all backends are selected (ie mmx and sse)
   orc_sources += ['orcmmx.c', 'orcrules-mmx.c', 'orcprogram-mmx.c', 'orcx86.c']
 endif
 
-if backend == 'altivec' or backend == 'all'
+if 'altivec' in enabled_backends
   orc_sources += ['orcrules-altivec.c', 'orcprogram-altivec.c', 'orcpowerpc.c']
 endif
 
-if backend == 'neon' or backend == 'all'
+if 'neon' in enabled_backends
   orc_sources += ['orcprogram-neon.c', 'orcrules-neon.c', 'orcarm.c']
 endif
 
 # ARM backend is disabled until it has decent coverage
-if backend == 'arm' or backend == 'all'
+if 'arm' in enabled_backends
   # we assume it is ok to include the same file (orcarm) twice
   # in case all backends are selected (ie neon and arm)
   # orc_sources += ['orcprogram-arm.c', 'orcrules-arm.c', 'orcarm.c']
 endif
 
-if backend == 'c64x' or backend == 'all'
+if 'c64x' in enabled_backends
   orc_sources += ['orcprogram-c64x-c.c']
 endif
 
-if backend == 'mips' or backend == 'all'
+if 'mips' in enabled_backends
   orc_sources += ['orcmips.c', 'orcprogram-mips.c', 'orcrules-mips.c']
 endif
 
-- 
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