#
# global
#
# Global build configuration
#
# Environment variables:
# POCO_BASE:   Path to POCO source tree. Must be defined.
# POCO_BUILD:  Path to directory where build files are put.
#              Defaults to $(POCO_BASE)
# POCO_CONFIG: Build configuration to use.
#              Defaults to `uname`.
# POCO_TARGET_OSNAME: Target system operating system name (for cross builds)
# POCO_TARGET_OSARCH: Target system architecture (forr cross builds)
#

#
# Check for POCO_BASE
#
ifndef POCO_BASE
$(error POCO_BASE is not defined.)
endif

#
# Include some optional make configuration
#
sinclude $(POCO_BASE)/config.build

#
# Check for PROJECT_BASE
#
ifndef PROJECT_BASE
PROJECT_BASE = $(POCO_BASE)
endif
export PROJECT_BASE
ifdef POCO_VERBOSE
$(info PROJECT_BASE        = $(PROJECT_BASE))
endif

#
# Check for POCO_BUILD
#
ifndef POCO_BUILD
POCO_BUILD = $(PROJECT_BASE)
endif
export POCO_BUILD
ifdef POCO_VERBOSE
$(info POCO_BUILD          = $(POCO_BUILD))
endif

#
# POCO_BASE/POCO_BUILD/cwd sanity checks
#
# Ensure that the current working directory is either
# under $POCO_BASE or under $PROJECT_BASE
# Also, if we're building under $POCO_BASE, disarm
# $PROJECT_BASE
#
cwd = $(shell pwd)
inpoco = $(shell echo | awk '{print index("$(cwd)","$(POCO_BASE)")}')
inproj = $(shell echo | awk '{print index("$(cwd)","$(PROJECT_BASE)")}')
ifneq ($(inpoco),0)
PROJECT_BASE = $(POCO_BASE)
else
ifneq ($(inproj),0)
else
$(error Current working directory not under $$PROJECT_BASE)
endif
endif

#
# Determine OS
#
POCO_HOST_OSNAME = $(shell uname)
ifeq ($(findstring CYGWIN,$(POCO_HOST_OSNAME)),CYGWIN)
POCO_HOST_OSNAME = CYGWIN
endif

ifeq ($(findstring MINGW,$(POCO_HOST_OSNAME)),MINGW)
POCO_HOST_OSNAME = MinGW
endif
ifdef POCO_VERBOSE
$(info POCO_HOST_OSNAME    = $(POCO_HOST_OSNAME))
endif

POCO_HOST_OSARCH ?= $(subst /,-,$(shell uname -m | tr ' ' _))
ifdef POCO_VERBOSE
$(info POCO_HOST_OSARCH    = $(POCO_HOST_OSARCH))
endif

#
# Begin Sun platforms
#
# Pure Solaris or GNU (Nexenta), Sun Forte and Sun Studio compilers supported
# (on Nexenta, the default compiler is g++)
#
ifndef POCO_CONFIG
  ifeq ($(findstring SunOS,$(POCO_HOST_OSNAME)),SunOS)
    # detect if this is Nexenta platform
    POCO_HOST_ALL_OSNAME := $(shell uname -a)
    ifeq ($(findstring Nexenta,$(POCO_HOST_ALL_OSNAME)),Nexenta)
      POCO_HOST_OSNAME := Nexenta
    else # Up to version 5.5 SunOS-SunForte config is used, 5.6 and above use SunOS-SunStudio
      POCO_COMPILER_NAME := $(shell CC -V 2>&1)
      POCO_COMPILER_VERSION := $(subst .,,$(filter 5.%,$(POCO_COMPILER_NAME)))

      ifeq (0, $(shell test $(POCO_COMPILER_VERSION) -gt 55; echo $$?))
        POCO_CONFIG := SunOS-SunStudio
      else
        POCO_CONFIG := SunOS-SunForte
      endif
    endif
  endif
endif
#
# End Sun Platforms
#

#
# If POCO_CONFIG is not set, use the OS name as configuration name
#
ifndef POCO_CONFIG
POCO_CONFIG = $(POCO_HOST_OSNAME)
endif
ifdef POCO_VERBOSE
$(info POCO_CONFIG         = $(POCO_CONFIG))
endif

#
# Include System Specific Settings
#
include $(POCO_BASE)/build/config/$(POCO_CONFIG)

#
# Determine operating system
#
ifndef POCO_TARGET_OSNAME
OSNAME   := $(POCO_HOST_OSNAME)
else
OSNAME   := $(POCO_TARGET_OSNAME)
endif
ifdef POCO_VERBOSE
$(info OSNAME              = $(OSNAME))
endif

ifndef POCO_TARGET_OSARCH
OSARCH   := $(subst /,-,$(shell uname -m | tr ' ' _))
else
OSARCH   := $(POCO_TARGET_OSARCH)
endif
ifdef POCO_VERBOSE
$(info OSARCH              = $(OSARCH))
endif

HOSTNAME := $(shell hostname)

#
# Check if a 64bit build is requested
#
ifndef OSARCH_64BITS
OSARCH_64BITS = 0
endif

ifeq ($(OSARCH_64BITS),1)
OSARCH_POSTFIX = 64
else
OSARCH_POSTFIX =
endif

#
# Detect distro
#

# Fedora, Redhat, Centos.
REDHATISH = $(if $(wildcard /etc/redhat-release /etc/centos-release /etc/fedora-release),1)
# Debian, Ubuntu
DEBIANISH = $(if $(wildcard /etc/debian_version),1)

#
# Adjust suffix for 64-bit lib directory
#
ifneq ($(REDHATISH),)
LIB64SUFFIX = $(if $(filter $(OSARCH),x86_64 sparc64 ppc64),64,)
else ifneq ($(DEBIANISH),)
LIB64SUFFIX = $(if $(filter $(OSARCH),x86_64 sparc64 ppc64),/x86_64-linux-gnu,)
endif

# Default static lib extension
STATICLIBLINKEXT = .a

#
# Find out current component
#
COMPONENT := $(shell $(POCO_BASE)/build/script/projname "$(PROJECT_BASE)")

#
# Define standard directories
#
SRCDIR   = src
INCDIR   = include
LIBDIR   = lib/$(OSNAME)/$(OSARCH)
BINDIR   = bin/$(OSNAME)/$(OSARCH)
OBJDIR   = obj/$(OSNAME)/$(OSARCH)
DEPDIR   = .dep/$(OSNAME)/$(OSARCH)
LIBPATH  = $(POCO_BUILD)/$(LIBDIR)
BINPATH  = $(POCO_BUILD)/$(COMPONENT)/$(BINDIR)
OBJPATH  = $(POCO_BUILD)/$(COMPONENT)/$(OBJDIR)
DEPPATH  = $(POCO_BUILD)/$(COMPONENT)/$(DEPDIR)

POCO_HOST_BINDIR    = bin/$(POCO_HOST_OSNAME)/$(POCO_HOST_OSARCH)
POCO_TARGET_BINDIR  = $(BINDIR)
POCO_HOST_BINPATH   = $(POCO_BUILD)/$(POCO_HOST_BINDIR)
POCO_TARGET_BINPATH = $(BINPATH)
POCO_HOST_LIBDIR    = lib/$(POCO_HOST_OSNAME)/$(POCO_HOST_OSARCH)
POCO_TARGET_LIBDIR  = $(LIBDIR)
POCO_HOST_LIBPATH   = $(POCO_BUILD)/$(POCO_HOST_LIBDIR)
POCO_TARGET_LIBPATH = $(LIBPATH)
ifdef POCO_PREFIX
POCO_LIB_INSTALLDIR = $(POCO_PREFIX)/lib
else
POCO_LIB_INSTALLDIR = $(LIBPATH)
endif
ifdef POCO_VERBOSE
$(info POCO_LIB_INSTALLDIR = $(POCO_LIB_INSTALLDIR))
endif

ifeq ($(POCO_BASE),$(PROJECT_BASE))
POCO_LIBRARY =
else
POCO_LIBRARY = -L$(POCO_BASE)/$(LIBDIR)
endif

ifndef LIBPREFIX
LIBPREFIX = lib
endif

ifeq ($(POCO_HOST_LIBPATH),$(POCO_BASE)/$(POCO_HOST_LIBDIR))
LD_LIBRARY_PATH = $(POCO_HOST_LIBPATH)
else
LD_LIBRARY_PATH = $(POCO_HOST_LIBPATH):$(POCO_BASE)/$(POCO_HOST_LIBDIR)
endif
ifeq ($(POCO_HOST_OSNAME),Darwin)
SET_LD_LIBRARY_PATH = DYLD_LIBRARY_PATH=$(LD_LIBRARY_PATH)
else
SET_LD_LIBRARY_PATH = LD_LIBRARY_PATH=$(LD_LIBRARY_PATH)
endif

#
# Build component list
#
COMPONENTS := $(shell cat $(POCO_BASE)/components)

#
# Read global library version number
#
LIBVERSION := $(shell cat $(POCO_BASE)/libversion)

#
# Determine link mode
#
ifndef LINKMODE
LINKMODE = BOTH
endif

ifeq ($(LINKMODE),SHARED)
DEFAULT_TARGET = all_shared
endif
ifeq ($(LINKMODE),STATIC)
DEFAULT_TARGET = all_static
endif
ifeq ($(LINKMODE),BOTH)
DEFAULT_TARGET = all_static all_shared
endif

#
# Compose compiler flags
#
COMMONFLAGS = -DPOCO_BUILD_HOST='"'$(HOSTNAME)'"' -DPOCO_TARGET_OSNAME='"'$(OSNAME)'"' -DPOCO_TARGET_OSARCH='"'$(OSARCH)'"' $(POCO_FLAGS)
CFLAGS     += $(COMMONFLAGS) $(SYSFLAGS)
CXXFLAGS   += $(COMMONFLAGS) $(SYSFLAGS)
LINKFLAGS  += $(COMMONFLAGS) $(SYSFLAGS)

ifeq ($(OSARCH_64BITS),1)
CFLAGS     += $(CFLAGS64)
CXXFLAGS   += $(CXXFLAGS64)
SHLIBFLAGS += $(SHLIBFLAGS64)
DYLIBFLAGS += $(DYLIBFLAGS64)
LINKFLAGS  += $(LINKFLAGS64)
else
CFLAGS     += $(CFLAGS32)
CXXFLAGS   += $(CXXFLAGS32)
SHLIBFLAGS += $(SHLIBFLAGS32)
DYLIBFLAGS += $(DYLIBFLAGS32)
LINKFLAGS  += $(LINKFLAGS32)
endif

#
# Compose object file path
#
OBJPATH_RELEASE_STATIC = $(OBJPATH)/release_static$(OSARCH_POSTFIX)
OBJPATH_DEBUG_STATIC   = $(OBJPATH)/debug_static$(OSARCH_POSTFIX)
OBJPATH_RELEASE_SHARED = $(OBJPATH)/release_shared$(OSARCH_POSTFIX)
OBJPATH_DEBUG_SHARED   = $(OBJPATH)/debug_shared$(OSARCH_POSTFIX)

#
# Build Include directory List
#
INCLUDE = -Iinclude $(foreach p,$(COMPONENTS),-I$(POCO_BASE)/$(p)/$(INCDIR)) $(foreach p,$(POCO_ADD_INCLUDE),-I$(p))

#
# Build Library Directory List
#
LIBRARY = -L$(LIBPATH) $(POCO_LIBRARY) $(foreach p,$(POCO_ADD_LIBRARY),-L$(p))

#
# Strip Command definition
#
ifeq ($(strip $(STRIP)),)
STRIPCMD = 
else
STRIPCMD = $(STRIP) $@$(BINEXT)
endif

#
# Make CC and CXX environment vars
#
export CC
export CXX
export LINK
