dev-util/tinyxxd: respect user variables and add tests

The ebuild now properly honors CC, CFLAGS, LDFLAGS, EPREFIX.

Signed-off-by: Lucio Sauer <watermanpaint@posteo.net>

dev-util/tinyxxd/tinyxxd-9999.ebuild

@@ -3,6 +3,8 @@
 
 EAPI=8
 
+inherit edo toolchain-funcs
+
 DESCRIPTION="Drop-in replacement and standalone version of xxd"
 HOMEPAGE="https://github.com/xyproto/tinyxxd"
 if [[ ${PV} == *9999* ]]; then
@@ -21,8 +23,21 @@ IUSE="xxd"
 
 RDEPEND="xxd? ( !dev-util/xxd !app-editors/vim-core )"
 
+PATCHES=( "${FILESDIR}"/${PN}-1.3.7-fix-flags.patch )
+
+src_compile() {
+	export CFLAGS LDFLAGS
+	tc-export CC
+	emake
+}
+
+src_test() {
+	edo ./testfiles/test13.sh
+	edo ./testfiles/test14.sh
+}
+
 src_install(){
-	default
+	emake DESTDIR="${D}" PREFIX="${EPREFIX}"/usr install
 	if use xxd; then
 		dosym -r /usr/bin/tinyxxd /usr/bin/xxd
 	fi