app-misc/brightnessctl: use udev_reload, clean cflags

Closes: https://bugs.gentoo.org/887315
Closes: https://bugs.gentoo.org/901029
Signed-off-by: Nicolas PARLANT <nicolas.parlant@parhuet.fr>

app-misc/brightnessctl/brightnessctl-0.5.1.ebuild

@@ -3,7 +3,7 @@
 
 EAPI=8
 
-inherit toolchain-funcs
+inherit toolchain-funcs udev
 
 DESCRIPTION="A program to read and control device brightness"
 HOMEPAGE="https://github.com/Hummer12007/brightnessctl"
@@ -23,6 +23,10 @@ BDEPEND="
 	systemd? ( virtual/pkgconfig )
 "
 
+PATCHES=(
+	"${FILESDIR}"/${PN}-0.5.1-Makefile.patch
+)
+
 src_compile() {
 	tc-export CC
 	use systemd && export ENABLE_SYSTEMD=1
@@ -45,3 +49,11 @@ src_install() {
 	emake ${myconf} DESTDIR="${D}" install
 	dodoc README.md
 }
+
+pkg_postinst() {
+	! use systemd && use udev && udev_reload
+}
+
+pkg_postrm() {
+	! use systemd && use udev && udev_reload
+}

app-misc/brightnessctl/files/brightnessctl-0.5.1-Makefile.patch

@@ -0,0 +1,9 @@
+--- a/Makefile
++++ b/Makefile
+@@ -1,5 +1,5 @@
+ VERSION = 0.5
+-CFLAGS += -std=c99 -g -Wall -Wextra -DVERSION=\"${VERSION}\" -D_POSIX_C_SOURCE=200809L
++CFLAGS += -Wall -Wextra -DVERSION=\"${VERSION}\" -D_POSIX_C_SOURCE=200809L
+ LDLIBS = -lm
+ 
+ PREFIX ?= /usr