File fix-neon-build.patch of Package openal-soft.7598

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

---
 CMakeLists.txt | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

Index: openal-soft-1.17.2/CMakeLists.txt
===================================================================
--- openal-soft-1.17.2.orig/CMakeLists.txt
+++ openal-soft-1.17.2/CMakeLists.txt
@@ -360,6 +360,7 @@ 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)
@@ -377,6 +378,10 @@ 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)));
@@ -759,6 +764,10 @@ 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")
     ENDIF()
 ENDIF()