# Generic makefile for a library
# Last edited on 2007-04-16 21:19:56 by stolfi

######################################################################
# To be included by the top-level Makefile in the library's directory.
# The caller must define ${LIBNAME}.
# The caller may defined ${IGNORE} as a list of source files 
#   that should not be compiled or installed.

ifneq "/${LIBNAME}" "/"

# Where to install the library:
INSTPUB := ${HOME}/PUB
INSTINC := ${INSTPUB}/include
INSTLIB := ${INSTPUB}/${PLATFORM}/lib

# Location of Stolfi's headers:
JSPUB := ${HOME}/PUB
JSINC := ${JSPUB}/include

# Get list of sources:
HFILES := ${filter-out Makefile ${IGNORE}, ${shell shopt -s nullglob; ls *.h Makefile}}
CFILES := ${filter-out Makefile ${IGNORE}, ${shell shopt -s nullglob; ls *.c Makefile}}

# Derived object files:
HOFILES := ${subst .h,.ho,${HFILES}}
OFILES := ${subst .c,.o,${CFILES}}

# Library file name:
LIBFILE = ${LIBNAME}.a

# Make targets:
.PHONY: \
  depend \
  all \
  uninstall \
  build build-hos build-lib check \
  install \
  export-archive \
  clean

# Default target:
# all: uninstall clean build install
all: uninstall build install
# all: build

# File with dependencies between sources:
DEPFILE := Deps.make
# This file must be present to run "make";
# create an empty one if necessary.

# Directories to search for #include files:
IFLAGS := -I. ${addprefix -I,${OTHERINCS}} -I${JSINC}

#---------------------------------------------------------------------
# "make depend" recreates the source dependency file ${DEPFILE}.

depend: 
	/bin/rm -f ${DEPFILE}
	extract-ho-deps ${IFLAGS} -I/usr/include \
            ${HFILES} ${CFILES} \
          | egrep -v ': /usr/include' \
          > ${DEPFILE}

#---------------------------------------------------------------------
# "make build" assumes that the dependencies in ${DEPFILE}
# are up-to-date.  We list ${HOFILES} as an explicit target
# to force (hopefully) compilation of all {.h}s before all {.c}s.

build: build-hos build-lib

build-hos: ${HOFILES}
  
build-lib: ${LIBFILE}

CC := /usr/bin/gcc

CFLAGS := \
  -ggdb -ffloat-store -frounding-math \
  -Wall -Wpointer-arith -Wmissing-prototypes \
  -fpcc-struct-return

%.o: %.c
	${CC} -c ${CFLAGS} ${IFLAGS} $*.c
  
%.ho: %.h
	${CC} -o $*.ho -c ${CFLAGS} ${IFLAGS} -x c $*.h \
          || /bin/rm -f $*.ho
  
${LIBFILE}: ${OFILES}
	-rm -f $*.a
	ar crv $*.a ${OFILES}
	ranlib $*.a

# Include specific dependencies extracted by "make depend"
include ${DEPFILE}

#---------------------------------------------------------------------
# "make install" copies program and makefile to the public dir.

install: ${HFILES} ${HOFILES} ${LIBFILE}
	cp -p ${HFILES} ${INSTINC}
	cp ${HOFILES} ${INSTINC}
	cp -p ${LIBFILE} ${INSTLIB}

#---------------------------------------------------------------------
# "make uninstall" deletes the exported program and makefile:

uninstall:
	( cd ${INSTINC} && rm -f ${HFILES} ${HOFILES} )
	( cd ${INSTLIB} && rm -f ${LIBFILE} )
  
#---------------------------------------------------------------------
# "make tar-export" creates a date-stamped tarball of sources and library.
# Test Makefiles and sources are included, as well as any files
# named '*-in.*'.  Beware that scripts and other test data files
# are NOT included!

DATETIME = ${shell date '+%Y-%m-%d-%H%M%S'}

EXTARFILE := ${LIBNAME}-${DATETIME}.tgz
  
tar-export: ${LIBFILE}
	tar -cvzf ${EXTARFILE} \
          00-README Makefile \
            ${HFILES} ${CFILES} \
            ${LIBFILE} \
            `find tests \( -name 'Makefile' -o -name '*.[hcf]' -o -name '*-in.*' \) -print`

#---------------------------------------------------------------------
# "make tar-save" creates a date-stamped tarball of all files except
# edit backups and derived files.

SAVEDIR := SAVE
SAVETARFILE := ${LIBNAME}-${DATETIME}-save.tgz
  
tar-save: clean
	tar -cvzf ${SAVEDIR}/${SAVETARFILE} \
          `find ./ -type f -print | egrep -v -e '[~]$'`

#---------------------------------------------------------------------
# "make check" runs the tests in the "tests" subdirectory.

TESTDIR := tests

check:
	cd ${TESTDIR} && ${MAKE} all

#---------------------------------------------------------------------
# "make clean" deletes all derived files.

clean:
	-/bin/rm -f *.o *.ho *.a core
  
endif
# End of ${LIBNAME} section.
######################################################################