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From 46b3e1d08ca10e809eb2e20b6371812958b97e1f Mon Sep 17 00:00:00 2001
From: Chris Robinson <chris.kcat@gmail.com>
Date: Mon, 12 Sep 2016 11:31:59 -0700
Subject: [PATCH] Check if -mfpu=neon is available for compiling the NEON mixer
[Upstream commit: https://github.com/kcat/openal-soft/commit/46b3e1d08ca10e809eb2e20b6371812958b97e1f]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
---
CMakeLists.txt | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/CMakeLists.txt b/CMakeLists.txt
index d92bbb7d..0d3bb5cd 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -364,6 +364,7 @@ SET(SSE_SWITCH "")
SET(SSE2_SWITCH "")
SET(SSE3_SWITCH "")
SET(SSE4_1_SWITCH "")
+SET(FPU_NEON_SWITCH "")
IF(NOT MSVC)
CHECK_C_COMPILER_FLAG(-msse HAVE_MSSE_SWITCH)
IF(HAVE_MSSE_SWITCH)
@@ -381,6 +382,10 @@ IF(NOT MSVC)
IF(HAVE_MSSE4_1_SWITCH)
SET(SSE4_1_SWITCH "-msse4.1")
ENDIF()
+ CHECK_C_COMPILER_FLAG(-mfpu=neon HAVE_MFPU_NEON_SWITCH)
+ IF(HAVE_MFPU_NEON_SWITCH)
+ SET(FPU_NEON_SWITCH "-mfpu=neon")
+ ENDIF()
ENDIF()
CHECK_C_SOURCE_COMPILES("int foo(const char *str, ...) __attribute__((format(printf, 1, 2)));
@@ -766,8 +771,11 @@ IF(HAVE_ARM_NEON_H)
IF(ALSOFT_CPUEXT_NEON)
SET(HAVE_NEON 1)
SET(ALC_OBJS ${ALC_OBJS} Alc/mixer_neon.c)
+ IF(FPU_NEON_SWITCH)
+ SET_SOURCE_FILES_PROPERTIES(Alc/mixer_neon.c PROPERTIES
+ COMPILE_FLAGS "${FPU_NEON_SWITCH}")
+ ENDIF()
SET(CPU_EXTS "${CPU_EXTS}, Neon")
- SET_SOURCE_FILES_PROPERTIES(Alc/mixer_neon.c PROPERTIES COMPILE_FLAGS -mfpu=neon)
ENDIF()
ENDIF()
IF(ALSOFT_REQUIRE_NEON AND NOT HAVE_NEON)
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