#
#   $Id$
#   Copyright (c) 1998 by the Free Pascal Development Team
#
#   Common makefile for Free Pascal
#
#   See the file COPYING.FPC, included in this distribution,
#   for details about the copyright.
#
#   This program is distributed in the hope that it will be useful,
#   but WITHOUT ANY WARRANTY; without even the implied warranty of
#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
#

#####################################################################
# Force default settings
#####################################################################

# Latest release version
override RELEASEVER:=0.99.9

#####################################################################
# Autodetect OS (Linux or Dos or Windows NT)
# define inlinux when running under linux
# define inWinNT when running under WinNT
#####################################################################

PWD=$(strip $(wildcard $(addsuffix /pwd.exe,$(subst ;, ,$(PATH)))))
ifeq ($(PWD),)
PWD=$(strip $(wildcard $(addsuffix /pwd,$(subst :, ,$(PATH)))))
ifeq ($(PWD),)
nopwd:
	@echo
	@echo You need the GNU pwd,cp,mv,rm,install utils to use this makefile!
	@echo Get ftp://tflily.fys.kuleuven.ac.be/pub/fpc/dist/gnuutils.zip
	@echo
	@exit
else
inlinux=1
endif
else
PWD:=$(subst \,/,$(firstword $(PWD)))
endif

# Detect NT - NT sets OS to Windows_NT
ifndef inlinux
ifeq ($(OS),Windows_NT)
inWinNT=1
endif
endif


#####################################################################
# Targets
#####################################################################

# Target OS
ifndef OS_TARGET
ifdef inlinux
OS_TARGET=linux
else
ifdef inWinNT
OS_TARGET=win32
else
OS_TARGET=go32v2
endif
endif
endif

# Source OS
ifndef OS_SOURCE
ifdef inlinux
OS_SOURCE=linux
else
ifndef inWinNT
OS_SOURCE=win32
else
OS_SOURCE=go32v2
endif
endif
endif

# CPU
ifndef CPU
CPU=i386
endif

# Options
ifndef OPT
OPT=
endif

# What compiler to use ?
ifndef PP
PP=ppc386
endif

# assembler, redefine it if cross compiling
ifndef AS
AS=as
endif

# linker, but probably not used 
ifndef LD
LD=ld
endif

# Release ? Then force OPT and don't use extra opts via commandline
ifdef RELEASE
override OPT:=-Xs -OG2p2 -n
endif

# Verbose settings (warning,note,info)
ifdef VERBOSE
override OPT+=-vwni
endif

#####################################################################
# Shell commands
#####################################################################

# To copy pograms
ifndef COPY
COPY=cp -fp
endif

# To move pograms
ifndef MOVE
MOVE=mv -f
endif

# Check delete program
ifndef DEL
DEL=rm -f
endif

# Check deltree program
ifndef DELTREE
DELTREE=rm -rf
endif

# To install files
ifndef INSTALL
ifdef inlinux
INSTALL=install -m 644
else
INSTALL=$(COPY)
# ginstall has the strange thing to stubify all .o files !
#INSTALL=ginstall -m 644
endif
endif

# To install programs
ifndef INSTALLEXE
ifdef inlinux
INSTALLEXE=install -m 755
else
INSTALLEXE=$(COPY)
# ginstall has the strange thing to stubify all .o files !
#INSTALLEXE=ginstall -m 755
endif
endif

# To make a directory.
ifndef MKDIR
ifdef inlinux
MKDIR=install -m 755 -d
else
MKDIR=ginstall -m 755 -d
endif
endif


#####################################################################
# Default Tools
#####################################################################

# ppas.bat / ppas.sh
ifdef inlinux
PPAS=ppas.sh
else
PPAS=ppas.bat
endif

# ldconfig to rebuild .so cache
ifdef inlinux
LDCONFIG=ldconfig
else
LDCONFIG=
endif

# Where is the ppumove program ?
ifndef PPUMOVE
PPUMOVE=ppumove
endif

# diff
ifndef DIFF
DIFF=diff
endif

# date
ifndef DATE
# first try go32v2 specific gdate
DATE=$(strip $(wildcard $(addsuffix /gdate.exe,$(subst ;, ,$(PATH)))))
# try generic date.exe
ifeq ($(DATE),)
DATE=$(strip $(wildcard $(addsuffix /date.exe,$(subst ;, ,$(PATH)))))
# finally try for linux
ifeq ($(DATE),)
DATE=$(strip $(wildcard $(addsuffix /date,$(subst :, ,$(PATH)))))
ifeq ($(DATE),)
DATE=
endif
else
DATE:=$(subst \,/,$(firstword $(DATE)))
endif
else
DATE:=$(subst \,/,$(firstword $(DATE)))
endif
endif

# Sed
ifndef SED
SED=$(strip $(wildcard $(addsuffix /sed.exe,$(subst ;, ,$(PATH)))))
ifeq ($(SED),)
SED=$(strip $(wildcard $(addsuffix /sed,$(subst :, ,$(PATH)))))
ifeq ($(SED),)
SED=
endif
else
SED:=$(subst \,/,$(firstword $(SED)))
endif
endif


#####################################################################
# Default Directories
#####################################################################

# Base dir
ifdef PWD
BASEDIR=$(shell $(PWD))
endif

# set the directory to the rtl base
ifndef RTLDIR
ifdef RTL
RTLDIR=$(RTL)
else
RTLDIR:=$(BASEDIR)/../rtl
endif
endif

# specify where units are.
ifndef UNITDIR
UNITDIR=$(RTLDIR)/$(OS_TARGET)
ifeq ($(OS_TARGET),go32v1)
UNITDIR=$(RTLDIR)/dos/go32v1
endif
ifeq ($(OS_TARGET),go32v2)
UNITDIR=$(RTLDIR)/dos/go32v2
endif
endif

# set the prefix directory where to install everything
ifndef PREFIXINSTALLDIR
ifdef inlinux
PREFIXINSTALLDIR=/usr
else
PREFIXINSTALLDIR=/pp
endif
endif

# set the base directory where to install everything
ifndef BASEINSTALLDIR
ifdef inlinux
BASEINSTALLDIR=$(PREFIXINSTALLDIR)/lib/fpc/$(RELEASEVER)
else
BASEINSTALLDIR=$(PREFIXINSTALLDIR)
endif
endif


#####################################################################
# Install Directories based on BASEINSTALLDIR
#####################################################################

# Linux binary really goes to baseinstalldir
ifndef LIBINSTALLDIR
ifdef inlinux
LIBINSTALLDIR=$(BASEINSTALLDIR)
else
LIBINSTALLDIR=$(BASEINSTALLDIR)/lib
endif
endif

# set the directory where to install the binaries
ifndef BININSTALLDIR
ifdef inlinux
BININSTALLDIR=$(PREFIXINSTALLDIR)/bin
else
BININSTALLDIR=$(BASEINSTALLDIR)/bin/$(OS_TARGET)
endif
endif

# set the directory where to install the units.
ifndef UNITINSTALLDIR
ifdef inlinux
UNITINSTALLDIR=$(BASEINSTALLDIR)/linuxunits
else
UNITINSTALLDIR=$(BASEINSTALLDIR)/rtl/$(OS_TARGET)
endif
endif

# set the directory where to install the units.
ifndef STATIC_UNITINSTALLDIR
ifdef inlinux
STATIC_UNITINSTALLDIR=$(BASEINSTALLDIR)/staticunits
else
STATIC_UNITINSTALLDIR=$(BASEINSTALLDIR)/rtl/$(OS_TARGET)/static
endif
endif

# set the directory where to install the units.
ifndef SHARED_UNITINSTALLDIR
ifdef inlinux
SHARED_UNITINSTALLDIR=$(BASEINSTALLDIR)/sharedunits
else
SHARED_UNITINSTALLDIR=$(BASEINSTALLDIR)/rtl/$(OS_TARGET)/shared
endif
endif

# set the directory where to install the libs (must exist)
ifndef STATIC_LIBINSTALLDIR
ifdef inlinux
STATIC_LIBINSTALLDIR=$(BASEINSTALLDIR)/staticunits
else
STATIC_LIBINSTALLDIR=$(STATIC_UNITINSTALLDIR)
endif
endif

# set the directory where to install the libs (must exist)
ifndef SHARED_LIBINSTALLDIR
ifdef inlinux
SHARED_LIBINSTALLDIR=$(PREFIXINSTALLDIR)/lib
else
SHARED_LIBINSTALLDIR=$(SHARED_UNITINSTALLDIR)
endif
endif

# Where the .msg files will be stored
ifndef MSGINSTALLDIR
ifdef inlinux
MSGINSTALLDIR=$(BASEINSTALLDIR)/msg
else
MSGINSTALLDIR=$(BININSTALLDIR)
endif
endif

# Where the doc files will be stored
ifndef DOCINSTALLDIR
ifdef inlinux
DOCINSTALLDIR=$(PREFIXINSTALLDIR)/doc/fpc/$(RELEASEVER)
else
DOCINSTALLDIR=$(BASEINSTALLDIR)/doc
endif
endif


#####################################################################
# Compiler Command Line
#####################################################################

# Load commandline OPTDEF and add CPU define
override PPOPTDEF=$(OPTDEF) -d$(CPU)

# Load commandline OPT and add target and unit dir to be sure
override PPOPT=$(OPT) -T$(OS_TARGET) -Fu$(UNITDIR) $(NEEDOPT)

# Add include dirs INC and PROCINC
ifdef INC
override PPOPT+=-I$(INC)
endif
ifdef PROCINC
override PPOPT+=-I$(PROCINC)
endif
ifdef OSINC
override PPOPT+=-I$(OSINC)
endif

# Target dirs
ifdef TARGETDIR
override PPOPT+=-FE$(TARGETDIR)
endif
ifdef UNITTARGETDIR
override PPOPT+=-FU$(UNITTARGETDIR)
endif

# Smartlinking
ifeq ($(SMARTLINK),YES)
ifeq ($(LIBTYPE),shared)
override SMARTLINK=NO
else
override PPOPT+=-Cx
endif
endif

# Add library type, for static libraries smartlinking is automatic used
ifeq ($(LIBTYPE),shared)
override PPOPT+=-CD
else
ifeq ($(LIBTYPE),static)
override PPOPT+=-CS
endif
endif

# Add library name
ifneq ($(LIBNAME),)
override PPOPT:=$(PPOPT) -o$(LIBNAME)
endif

# Add defines from PPOPTDEF to PPOPT
override PPOPT:=$(PPOPT) $(PPOPTDEF)

# Was a config file specified ?
ifdef CFGFILE
override PPOPT:=$(PPOPT) @$(CFGFILE)
endif

override COMPILER=$(PP) $(PPOPT)


#####################################################################
# Default extensions
#####################################################################

# Default needed extensions (Go32v2,Linux)
PPLEXT=.ppl
PPUEXT=.ppu
OEXT=.o
ASMEXT=.s
SMARTEXT=.sl
STATICLIBEXT=.a
SHAREDLIBEXT=.so

# Executable extension
ifdef inlinux
EXEEXT=
else
EXEEXT=.exe
endif

# Go32v1
ifeq ($(OS_TARGET),go32v1)
PPUEXT=.pp1
OEXT=.o1
ASMEXT=.s1
SMARTEXT=.sl1
STATICLIBEXT=.a1
SHAREDLIBEXT=.so1
endif

# Win32
ifeq ($(OS_TARGET),win32)
PPUEXT=.ppw
OEXT=.ow
ASMEXT=.sw
SMARTEXT=.slw
STATICLIBEXT=.aw
SHAREDLIBEXT=.dll
endif

# OS/2
ifeq ($(OS_TARGET),os2)
PPUEXT=.ppo
ASMEXT=.so2
OEXT=.o2
SMARTEXT=.so
STATICLIBEXT=.ao
SHAREDLIBEXT=.dll
endif

# determine libary extension.
ifeq ($(LIBTYPE),static)
LIBEXT=$(STATICLIBEXT)
else
LIBEXT=$(SHAREDLIBEXT)
endif

# library prefix
LIBPREFIX=lib
ifeq ($(OS_TARGET),go32v2)
LIBPREFIX=
endif
ifeq ($(OS_TARGET),go32v1)
LIBPREFIX=
endif

# determine with .pas extension is used
ifdef EXEOBJECTS
override TESTPAS:=$(strip $(wildcard $(addsuffix .pas,$(firstword $(EXEOBJECTS)))))
else
override TESTPAS:=$(strip $(wildcard $(addsuffix .pas,$(firstword $(UNITOBJECTS)))))
endif

ifeq ($(TESTPAS),)
PASEXT=.pp
else
PASEXT=.pas
endif


#####################################################################
# Export commandline values, so nesting use the same values
#####################################################################

export OS_SOURCE OS_TARGET OPT OPTDEF CPU PP RELEASE VERBOSE
export SMARTLINK LIBTYPE LIBNAME
export BASEINSTALLDIR


#####################################################################
# General compile rules
#####################################################################

# Create Filenames
EXEFILES=$(addsuffix $(EXEEXT),$(EXEOBJECTS))
UNITFILES=$(addsuffix $(PPUEXT),$(UNITOBJECTS))
UNITOFILES=$(addsuffix $(OEXT),$(UNITOBJECTS))

.PHONY : all clean install \
         info cfginfo objectinfo installinfo filesinfo

.SUFFIXES : $(EXEEXT) $(PPUEXT) $(PASEXT)

ifdef DEFAULTUNITS
all: units
else
all: units exes
endif

units: $(UNITFILES)

exes: $(EXEFILES)

# General compile rules
%$(PPUEXT): %$(PASEXT)
	$(COMPILER) $<

%$(EXEEXT): %$(PASEXT)
	$(COMPILER) $<



#####################################################################
# Install rules
#####################################################################

install : all
ifdef EXEOBJECTS
	$(MKDIR) $(BININSTALLDIR)
	$(INSTALLEXE) $(EXEFILES) $(BININSTALLDIR)
endif
ifdef UNITOBJECTS
	$(MKDIR) $(UNITINSTALLDIR)
ifeq ($(SMARTLINK),YES)
	$(INSTALL) $(LIBPREFIX)$(LIBNAME)$(LIBEXT) $(UNITINSTALLDIR)
else
	$(INSTALL) $(UNITFILES) $(UNITOFILES) $(UNITINSTALLDIR)
endif
endif


#####################################################################
# Clean rules
#####################################################################

clean:
	-$(DEL) *$(OEXT) *$(ASMEXT) *$(PPUEXT) *$(STATICLIBEXT) *$(SHAREDLIBEXT) $(PPAS) link.res log
	-$(DELTREE) *$(SMARTEXT)
ifdef EXEOBJECTS
	-$(DEL) $(EXEFILES)
endif


#####################################################################
# Depend rules
#####################################################################

depend:
	makedep $(UNITOBJECTS)

#####################################################################
# Info rules
#####################################################################

info: cfginfo objectinfo installinfo

cfginfo:
	@echo
	@echo  == Configuration info ==
	@echo
	@echo  Source.... $(OS_SOURCE)
	@echo  Target.... $(OS_TARGET)
	@echo  Basedir... $(BASEDIR)
	@echo  Pwd....... $(PWD)
ifdef SED
	@echo  Sed....... $(SED)
endif
	@echo

objectinfo:
	@echo
	@echo  == Object info ==
	@echo
	@echo  UnitObjects... $(UNITOBJECTS)
	@echo  ExeObjects.... $(EXEOBJECTS)
	@echo

installinfo:
	@echo
	@echo  == Install info ==
	@echo
	@echo  BaseInstallDir....... $(BASEINSTALLDIR)
	@echo  BinInstallDir........ $(BININSTALLDIR)
	@echo  UnitInstallDir....... $(UNITINSTALLDIR)
	@echo  StaticUnitInstallDir. $(STATIC_UNITINSTALLDIR)
	@echo  SharedUnitInstallDir. $(SHARED_UNITINSTALLDIR)
	@echo  LibInstallDir........ $(LIBINSTALLDIR)
	@echo  StaticLibInstallDir.. $(STATIC_LIBINSTALLDIR)
	@echo  SharedLibInstallDir.. $(SHARED_LIBINSTALLDIR)
	@echo  MsgInstallDir........ $(MSGINSTALLDIR)
	@echo  DocInstallDir........ $(DOCINSTALLDIR)
	@echo

# try to get the files in the currentdir
PASFILES:=$(wildcard *.pas)
PPFILES:=$(wildcard *.pp)
INCFILES:=$(wildcard *.inc)
MSGFILES:=$(wildcard *.msg)
ASFILES:=$(wildcard *.as)

filesinfo:
	@echo
	@echo  == Files info ==
	@echo
ifdef PASFILES
	@echo  Pas files are $(PASFILES)
endif
ifdef PPFILES
	@echo  PP  files are $(PPFILES)
endif
ifdef INCFILES
	@echo  Inc files are $(INCFILES)
endif
ifdef MSGFILES
	@echo  Msg files are $(MSGFILES)
endif
ifdef ASFILES
	@echo  As  files are $(ASFILES)
endif