build: make 'clean' target an alias for 'purge'

Autotools and many handwritten Makefiles only provide a 'clean' target,
which typically removes everything. However, the 'clean' target here does
not fully do this, leaving some artifacts behind after it is run. This
leads to confusion when, after cleaning, the build step still doesn't
reflect configuration changes such as newly installed libraries.

Therefore, update the 'clean' target to behave like the 'purge' step.

Signed-off-by: Daniel Wagner <[email protected]>

Author: igaw

Makefile

@@ -24,17 +24,14 @@ ${NAME}: ${BUILD-DIR}
 
 .PHONY: clean
 clean:
-ifneq ("$(wildcard ${BUILD-DIR})","")
-	meson compile --clean -C ${BUILD-DIR}
-endif
-
-.PHONY: purge
-purge:
 ifneq ("$(wildcard ${BUILD-DIR})","")
 	rm -rf ${BUILD-DIR}
 	meson subprojects purge --confirm
 endif
 
+.PHONY: purge
+purge: clean
+
 .PHONY: install
 install: ${NAME}
 	meson install -C ${BUILD-DIR} --skip-subprojects