dev-R/ps: respect LDFLAGS

Closes: https://bugs.gentoo.org/794112
Signed-off-by: Alessandro Barbieri <lssndrbarbieri@gmail.com>

dev-R/ps/files/ps-respect-LDFLAGS.patch

@@ -0,0 +1,15 @@
+--- a/src/Makevars.in
++++ b/src/Makevars.in
+@@ -8,10 +8,10 @@
+ all: px @TARGETS@ $(SHLIB)
+ 
+ px: px.c
+-	$(CC) $(CFLAGS) -Wall px.c -o px
++	$(CC) $(CFLAGS) $(LDFLAGS) -fPIE -Wall px.c -o px
+ 
+ interrupt: interrupt.c
+-	$(CC) $(CFLAGS) -Wall interrupt.c -o interrupt
++	$(CC) $(CFLAGS) $(LDFLAGS) -fPIE -Wall interrupt.c -o interrupt
+ 
+ clean:
+ 	rm -rf $(SHLIB) $(OBJECTS) px.exe px interrupt.exe interrupt

dev-R/ps/metadata.xml

@@ -11,4 +11,14 @@
 		manipulate all system processes, on 'Windows', 'Linux' and
 		'macOS'.
 	</longdescription>
+	<upstream>
+		<bugs-to>https://github.com/r-lib/ps/issues</bugs-to>
+		<changelog>https://cran.r-project.org/web/packages/ps/news/news.html</changelog>
+		<doc lang="en">https://cran.r-project.org/web/packages/ps/ps.pdf</doc>
+		<maintainer>
+			<email>csardi.gabor@gmail.com</email>
+			<name>Gábor Csárdi</name>
+		</maintainer>
+		<remote-id type="github">r-lib/ps</remote-id>
+	</upstream>
 </pkgmetadata>

dev-R/ps/ps-1.6.0.ebuild

@@ -11,3 +11,5 @@ LICENSE='MIT'
 
 DEPEND=">=dev-lang/R-3.1"
 RDEPEND="${DEPEND}"
+
+PATCHES=( "${FILESDIR}/${PN}-respect-LDFLAGS.patch" )