Makefile done right

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Hi /wsr/,

I'm trying to write a Makefile for my little C project which is made by a small library and a smaller program.

Let's say I have the following tree in the root of my project:
Makefile
libmeme/Makefile
libmeme/libmeme.c
libmeme/libmeme.h
pepethefrog/Makefile
pepethefrog/pepethefrog.c

What I want to achieve:
* The Makefile in the project will compile (and install) libmeme and pepethefrog calling their Makefile
* It must be possible to compile (and install) libmeme and pepethefrog on their own using their own Makefile
* The current working directory will be used for building, unless specified WORKDIR=, so that i can mkdir build && cd build && make -f ../Makefile or just make WORKDIR=/tmp

What I have achieved so far:

→ Makefile in the root of the project:
[code]export BASEDIR= $(dir $(lastword $(MAKEFILE_LIST)))
export WORKDIR?= $(CURDIR)

.PHONY: all libmeme pepethefrog

all: libmeme pepethefrog

libmeme:
cd $(BASEDIR)libmeme && $(MAKE)

pepethefrog:
cd $(BASEDIR)pepethefrog && $(MAKE)[/code]

(and how can I make it work with both bsd and gnu make? how can I remove trailing slash from BASEDIR in such a way it works with both implementations?)

→ libmeme/Makefile
[code]CC= cc
CFLAGS= -fPIC
LDFLAGS= `pkg-config --libs libcurl libpcre libcrypto`

BASEDIR= $(dir $(lastword $(MAKEFILE_LIST)))
WORKDIR?= $(CURDIR)
PREFIX?= /usr/local

.PHONY: all install deinstall

all: libmeme.so

install: $(WORKDIR)/libmeme.so
install -oroot -groot -m644 $(BASEDIR)libmeme.h $(PREFIX)/include
install -oroot -groot -m755 $(WORKDIR)/libmeme.so $(PREFIX)/lib

deinstall:
rm -f $(PREFIX)/include/libmeme.h
rm -f $(PREFIX)/lib/libmeme

libmeme.so: $(BASEDIR)libmeme.c
$(CC) $(CFLAGS) $(LDFLAGS) -o $(WORKDIR)/$@ -c $<[/code]

(With this problem is: each rule is for a target. Will it still count as target if the rule name and the generated file mismatch? E.g.: rule "shit" with generates "../build/shit")