MACOSXPPC: Add sonivox library

Updated to 3.6.14, but this requires a patch for GCC < 8.1

Author: dwatteau

toolchains/macosx-ppc/packages/sonivox/build.sh

@@ -0,0 +1,22 @@
+#! /bin/sh
+
+SONIVOX_VERSION=3.6.14
+#SONIVOX_SHA256=d625ad6b3375a036bf30cd3b0b40e8dde08f0891bfd3a2960650654bdb50318c
+
+PACKAGE_DIR=$(CDPATH= cd -- "$(dirname -- "$0")" && pwd)
+HELPERS_DIR=$PACKAGE_DIR/../../../common
+. $HELPERS_DIR/functions.sh
+
+do_make_bdir
+
+do_http_fetch sonivox \
+	"https://github.com/pedrolcl/sonivox/archive/refs/tags/v${SONIVOX_VERSION}.tar.gz" 'tar xzf' #"sha256:${SONIVOX_SHA256}"
+
+# XXX: uses __builtin_mul_overflow/__builtin_add_overflow which were added in GCC 5.0
+do_cmake -DBUILD_SONIVOX_SHARED=OFF -DBUILD_TESTING=OFF -DBUILD_EXAMPLE=OFF -DCMAKE_C_FLAGS="-O2 -mmacosx-version-min=10.4 -isysroot /Developer/SDKs/MacOSX10.4u.sdk -Wa,-force_cpusubtype_ALL -m32" -DCMAKE_C_COMPILER=/opt/macports-tff/bin/gcc-mp-7 -DCMAKE_CXX_COMPILER=/opt/macports-tff/bin/g++-mp-7 -DCMAKE_OSX_DEPLOYMENT_TARGET=10.4 -DCMAKE_OSX_SYSROOT=/Developer/SDKs/MacOSX10.4u.sdk "$@"
+
+do_make VERBOSE=1
+
+do_make install
+
+do_clean_bdir

toolchains/macosx-ppc/packages/sonivox/patches/fix-GCC-initializer-element-is-not-constant.patch

@@ -0,0 +1,27 @@
+Fix "initializer element is not constant" error with GCC
+
+--- a/arm-wt-22k/lib_src/wt_200k_G.c
++++ b/arm-wt-22k/lib_src/wt_200k_G.c
+@@ -100,18 +100,18 @@
+ */
+ 
+ #ifdef _SAMPLE_RATE_44100
+-const EAS_U32 sampleRate = 0xAC44;
++enum { sampleRate = 0xAC44 };
+ #else
+-const EAS_U32 sampleRate = 0x5622;
++enum { sampleRate = 0x5622 };
+ #endif
+ 
+ const S_EAS easSoundLib = {
+     0x01534145,
+ 
+ #if defined (_8_BIT_SAMPLES)
+-    0x00100000 | sampleRate,
++    0x00100000 | (EAS_U32)sampleRate,
+ #else //_16_BIT_SAMPLES
+-    0x00200000 | sampleRate,
++    0x00200000 | (EAS_U32)sampleRate,
+ #endif
+ 
+     eas_banks,