media-sound/wav2json: Respect CFLAGS/LDFLAGS/CXX

Closes: https://bugs.gentoo.org/727778
Closes: https://bugs.gentoo.org/724844
Signed-off-by: Jakov Smolic <jakov.smolic@sartura.hr>
Signed-off-by: Sam James <sam@gentoo.org>

media-sound/wav2json/files/wav2json-0.4-Makefile.patch

@@ -0,0 +1,35 @@
+--- a/Makefile
++++ b/Makefile
+@@ -4,23 +4,7 @@ UNAME := $(shell uname)
+ BINARY=../bin/$(UNAME)/wav2json
+ SRC=../src
+ 
+-ifeq ($(UNAME), Linux)
+ LD_PLATFORM_FLAGS=-lboost_program_options -lsndfile
+-CC=g++
+-endif
+-ifeq ($(UNAME), Darwin)
+-CC=clang++
+-LD_PLATFORM_FLAGS=\
+-	/usr/local/lib/libboost_program_options-mt.a \
+-	/usr/local/lib/libsndfile.a \
+-	/usr/local/lib/libogg.a \
+-	/usr/local/lib/libvorbis.a \
+-	/usr/local/lib/libvorbisenc.a \
+-	/usr/local/lib/libFLAC.a
+-
+-INCLUDES=\
+-	-I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.7.sdk/usr/X11/include/
+-endif
+ 
+ ifdef USE_FLOAT
+   LD_PLATFORM_FLAGS+=-DUSE_FLOAT
+@@ -42,7 +26,7 @@ $(SRC)/version.hpp: Makefile version.txt
+ 
+ $(BINARY): $(SRC)/*.cpp $(SRC)/*.hpp $(SRC)/version.hpp
+ 	mkdir -p `dirname $(BINARY)`
+-	$(CC) -O3 -Wall -Werror -std=c++11 $(SRC)/*.cpp $(INCLUDES) $(LD_PLATFORM_FLAGS) -o $(BINARY)
++	$(CXX) $(LDFLAGS) $(CXXFLAGS) $(CPPFLAGS) -Wall -std=c++11 $(SRC)/*.cpp $(INCLUDES) $(LD_PLATFORM_FLAGS) -o $(BINARY)
+ 
+ ../examples/%.json : ../example_data/%.wav
+ 	$(BINARY) $+ --precision 2 --channels left right mid side min max -o $@

media-sound/wav2json/wav2json-0.4.ebuild

@@ -1,26 +1,31 @@
-# Copyright 1999-2016 Gentoo Foundation
+# Copyright 1999-2021 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
-EAPI=6
+EAPI=7
+
+inherit toolchain-funcs
 
 COMMIT_ID="e412923f1f792408e8ae1096ca40fb5307ddfc74"
 DESCRIPTION="Generate waveformjs.org compatible json data out of wav files"
 HOMEPAGE="https://github.com/beschulz/wav2json"
 SRC_URI="https://github.com/beschulz/wav2json/archive/${COMMIT_ID}.tar.gz -> ${P}.tar.gz"
-
-S=${WORKDIR}/${PN}-${COMMIT_ID}/build
+S="${WORKDIR}/${PN}-${COMMIT_ID}/build"
 
 LICENSE="GPL-2"
 SLOT="0"
 KEYWORDS="~amd64 ~x86"
-IUSE=""
 
 DEPEND="
 	dev-libs/boost:=
-	media-libs/libsndfile
-"
+	media-libs/libsndfile:="
 RDEPEND="${DEPEND}"
 
+PATCHES=( "${FILESDIR}"/${P}-Makefile.patch )
+
+src_configure() {
+	tc-export CXX
+}
+
 src_install() {
 	dobin ../bin/Linux/wav2json
 }