# $Id$

# This is a list of all non-source files that are part of the distribution.
AUXFILES := Makefile Readme.txt

# Directories belonging to the project
PROJDIRS := functions includes internals
# All source files of the project
SRCFILES := $(shell find $(PROJDIRS) -mindepth 1 -maxdepth 3 -name "*.c")
# All header files of the project
HDRFILES := $(shell find $(PROJDIRS) -mindepth 1 -maxdepth 3 -name "*.h")
# All .c files in functions/_PDCLIB that do not have a regression test driver
INTFILES := _Exit atomax digits print rename remove seed strtox_main strtox_prelim
# All object files in the library
OBJFILES := $(patsubst %.c,%.o,$(SRCFILES))
# All test drivers (.t)
TSTFILES := $(patsubst %.c,%.t,$(SRCFILES))
# All regression test drivers (.r)
REGFILES := $(filter-out $(patsubst %,functions/_PDCLIB/%.r,$(INTFILES)),$(patsubst %.c,%.r,$(SRCFILES)))
# All dependency files (.d)
DEPFILES := $(patsubst %.c,%.d,$(SRCFILES))
# All files belonging to the source distribution
ALLFILES := $(SRCFILES) $(HDRFILES) $(AUXFILES)

# All files in platform/example/functions/_PDCLIB (for development only)
PATCHFILES1 := $(shell ls platform/example/functions/_PDCLIB/*.c)
# All files in platform/example/functions/stdlib (for development only)
PATCHFILES2 := $(shell ls platform/example/functions/stdlib/*.c)

CFLAGS := -Wall -pedantic -Wshadow -Wpointer-arith -Wcast-align -Wwrite-strings -Wmissing-prototypes -Wmissing-declarations -Wredundant-decls -Wnested-externs -Winline -Wno-long-long -Wconversion -Wstrict-prototypes

.PHONY: all clean dist tests testdrivers regtests regtestdrivers todos fixmes find links unlink help

all: pdclib.a

pdclib.a: $(OBJFILES)
	@ar r pdclib.a $?

tests: testdrivers
	-@rc=0; count=0; for file in $(TSTFILES); do echo " TST	$$file"; ./$$file; rc=`expr $$rc + $$?`; count=`expr $$count + 1`; done; echo; echo "Tests executed (linking PDCLib): $$count  Tests failed: $$rc"

testdrivers: $(TSTFILES)

regtests: regtestdrivers
	-@rc=0; count=0; for file in $(REGFILES); do echo " RTST	$$file"; ./$$file; rc=`expr $$rc + $$?`; count=`expr $$count + 1`; done; echo; echo "Tests executed (linking system libc): $$count  Tests failed: $$rc"

regtestdrivers: $(REGFILES)

-include $(DEPFILES)

clean:
	@for file in $(OBJFILES) $(DEPFILES) $(TSTFILES) $(REGFILES) pdclib.a pdclib.tgz; do if [ -f $$file ]; then rm $$file; fi; done

dist:
	@tar czf pdclib.tgz $(ALLFILES)

todos:
	-@for file in $(ALLFILES); do grep -H TODO $$file; done; true

fixmes:
	-@for file in $(ALLFILES); do grep -H FIXME $$file; done; true

find:
	@find functions/ includes/ internals/ platform/ -name "*\.[ch]" -type f | xargs grep $$FIND

links:
	@echo "Linking platform/example..."
	@cd internals && ln -s ../platform/example/internals/_PDCLIB_config.h
	@cd includes && ln -s ../platform/example/includes/float.h
	@cd functions/_PDCLIB && for file in $(PATCHFILES1); do basfile=`basename $$file`; if [ ! -f $$basfile ]; then ln -s `ls ../../$$file` .; fi; done
	@cd functions/stdlib && for file in $(PATCHFILES2); do basfile=`basename $$file`; if [ ! -f $$basfile ]; then ln -s `ls ../../$$file` .; fi; done

unlink:
	@echo "Unlinking platform files..."
	@if [ -f internals/_PDCLIB_config.h ]; then rm internals/_PDCLIB_config.h; fi
	@if [ -f includes/float.h ]; then rm includes/float.h; fi
	@cd functions/_PDCLIB && for file in $(PATCHFILES1); do basfile=`basename $$file`; if [ -f $$basfile ]; then rm $$basfile; fi; done
	@cd functions/stdlib && for file in $(PATCHFILES2); do basfile=`basename $$file`; if [ -f $$basfile ]; then rm $$basfile; fi; done

help:
	@echo "Available make targets:"
	@echo
	@echo "all              - build pdclib.a"
	@echo "clean            - remove all object files, dependency files and test drivers"
	@echo "dist             - build pdclib.tgz (source tarball)"
	@echo "tests            - build and run test drivers (link pdclib.a)"
	@echo "  testdrivers    - build but do not run test drivers"
	@echo "regtests         - build and run regression test drivers (link system clib)"
	@echo "  regtestdrivers - build but do not run regression test drivers"
	@echo "todos            - list all TODO comments in the sources"
	@echo "fixmes           - list all FIXME comments in the sources"
	@echo "find             - find a phrase in the sources (Usage: FIND=\"phrase\" make find)"
	@echo "links            - link example platform files (development only)"
	@echo "unlink           - remove links to example platform files (development only)"
	@echo "%.o              - build an individual object file"
	@echo "%.t              - build an individual test driver"
	@echo "%.r              - build an individual regression test driver"
	@echo "help             - print this list"

%.o: %.c Makefile
	@echo " CC	$@"
	@$(CC) $(CFLAGS) -Wall -DNDEBUG -MMD -MP -MT "$*.d $*.t" -g -std=c99 -I./includes -I./internals -c $< -o $@

%.t: %.c Makefile pdclib.a
	@echo " CC	$@"
	@$(CC) $(CFLAGS) -DTEST -std=c99 -I./includes -I./internals $< pdclib.a -o $@

%.r: %.c Makefile
	@echo " CC	$@"
	@$(CC) $(CFLAGS) -DTEST -DREGTEST -std=c99 -I./internals $< -o $@