Makefile: don't install the file as is for DKMS

Using the whole Makefile results in DKMS running commands unrelated to
the build process (like git commands) which only produce confusing error
output.

Just write `obj-m += nct6687.o` to the Makefile for DKMS as that's the
only thing necessary for it to work.

This also gets rid of `MAKE[0]` in `dkms.conf`.

Makefile

@@ -1,4 +1,4 @@
-obj-m += nct6687.o
+makefile    := obj-m += nct6687.o
 
 curpwd      := $(shell pwd)
 kver        ?= $(shell uname -r)
@@ -10,7 +10,8 @@ fedoraver   := $(shell sed -n 's/.*Fedora release \([^ ]*\).*/\1/p' /etc/fedora-
 build:
 	rm -rf ${curpwd}/${kver}
 	mkdir -p ${curpwd}/${kver}
-	cp ${curpwd}/Makefile ${curpwd}/nct6687.c ${curpwd}/${kver}
+	cp ${curpwd}/nct6687.c ${curpwd}/${kver}
+	echo '${makefile}' > ${curpwd}/${kver}/Makefile
 	cd ${curpwd}/${kver}
 	make -C /lib/modules/${kver}/build M=${curpwd}/${kver} modules
 install: build
@@ -30,7 +31,8 @@ akmod/build:
 	fi
 	sudo dnf install -y rpmdevtools kmodtool
 	mkdir -p ${curpwd}/.tmp/nct6687d-1.0.${commitcount}/nct6687d
-	cp LICENSE Makefile nct6687.c ${curpwd}/.tmp/nct6687d-1.0.${commitcount}/nct6687d
+	cp LICENSE nct6687.c ${curpwd}/.tmp/nct6687d-1.0.${commitcount}/nct6687d
+	echo '${makefile}' > ${curpwd}/.tmp/nct6687d-1.0.${commitcount}/nct6687d/Makefile
 	cd .tmp && tar -czvf nct6687d-1.0.${commitcount}.tar.gz nct6687d-1.0.${commitcount} && cd -
 	mkdir -p ${curpwd}/.tmp/rpmbuild/{BUILD,RPMS,SOURCES,SPECS,SRPMS}
 	cp ${curpwd}/.tmp/nct6687d-1.0.${commitcount}.tar.gz ${curpwd}/.tmp/rpmbuild/SOURCES/
@@ -54,7 +56,8 @@ dkms/build:
 dkms/install:
 	rm -rf ${curpwd}/dkms
 	mkdir -p ${curpwd}/dkms
-	cp ${curpwd}/dkms.conf ${curpwd}/Makefile ${curpwd}/nct6687.c ${curpwd}/dkms
+	cp ${curpwd}/dkms.conf ${curpwd}/nct6687.c ${curpwd}/dkms
+	echo '${makefile}' > ${curpwd}/dkms/Makefile
 	sudo rm -rf /usr/src/nct6687d-1
 	sudo cp -rT dkms /usr/src/nct6687d-1
 	sudo dkms install nct6687d/1

dkms.conf

@@ -1,6 +1,5 @@
 PACKAGE_NAME="nct6687d"
 PACKAGE_VERSION="1"
-MAKE[0]="make kver=${kernelver} dkms/build"
 BUILT_MODULE_NAME[0]="nct6687"
 DEST_MODULE_LOCATION[0]="/kernel/drivers/hwmon/"
 AUTOINSTALL="yes"