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pEpEngine/Makefile.conf

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15 KiB
Makefile

# Copyright 2017-2023, pEp Foundation
# This file is part of pEpEngine
# This file may be used under the terms of the GNU General Public License version 3
# see LICENSE.txt
# See `doc/build-<your platform>.md` for documentation on how to build, and customize your build.
# This file sets all the make variables that allow you to customize a build.
# There are 3 ways in which you can customize your build:
# 1) Edit the variable assignments in this file (this is a tracked file, so your repository will be dirty)
# 2) Create `local.conf` and fill it with variable assignments.
# 3) Set the environment variable `BUILD_CONFIG` to an absolute path.
# The variable assignments found in the make file at the path indicated by `BUILD_CONFIG` will be evaluated.
# Customization options are applied in the order given above. Later variable assignments take precedence over earlier ones.
# It is possible to use multiple variants simultaniously.
# If nothing is changed according to these 3 methods, a default configuration for your platform (specified below) will be used for the build.
######### Header #########
HERE:=$(dir $(lastword $(MAKEFILE_LIST)))
######### General #########
# To use (only) system libraries, set all the *_INC and *_LIB variables to the empty string.
# All the *_INC and *_LIB variables are command line flags, not paths.
# Thus, all *_INC variables' values must start with "-I", and all *_LIB variables' values must start with "-L".
BUILD_ON := $(shell uname)
# This variable specifies the platform that the engine should be cross-compiled
# for.
BUILD_FOR ?= $(BUILD_ON)
# Cross-compiling is currently not supported.
# Maybe you can hack something with `local.conf`.
ifneq ($(BUILD_ON),$(BUILD_FOR))
ifeq ($(BUILD_FOR),OS/390)
$(warning Generating sources for z/OS)
endif
ONLY_GENERATE=true
endif
# Installation path prefix for libraries and binaries, except for system.db
PREFIX ?= $(HOME)
# pEp files and directories
#
# the PER_USER_DIRECTORY will be in $(HOME), respectively
# in debug builds the PER_USER_DIRECTORY will be in $(PEP_HOME) instead if set
#
# PER_MACHINE_DIRECTORY is calculated depending on the platform; overwrite if
# necessary
PER_USER_DIRECTORY = .pEp
PER_MACHINE_DIRECTORY = $(PREFIX)/share/pEp
# Filename of the pEpEngine library
ifeq ($(BUILD_FOR),OS/390)
TARGET=libpEpEngine.so
else ifeq ($(BUILD_FOR),Linux)
TARGET=libpEpEngine.so
else ifeq ($(BUILD_FOR),Darwin)
TARGET=libpEpEngine.dylib
endif
# DEBUG can be set to:
# * release
# for a release build;
# * debug
# for a debug build (default);
# * maintainer
# for a maintainer build.
# See the comment in local.conf.example for more information. This definition
# is meant to be easy to override in local.conf .
DEBUG ?= debug
# If empty, suppress compiler warnings.
# Otherwise, print warnings.
# This variable is ineffective when set anywhere else but here.
WARN ?= placeholder
######### YML2 #########
YML2_PATH=$(HOME)/yml2
YML2_PROC=$(YML2_PATH)/yml2proc $(YML2_OPTS)
YML2_OPTS=--encoding=utf8
######### asn1c #########
# asn1c binary
ASN1C=asn1c
# asn1c include search flag
ASN1C_INC=
#ASN1C_INC=-I$(HOME)/include
######### sqlite3 #########
# If empty (or undefined), compile sqlite3 from the sources shipped with the pEp distribution.
# Otherwise, use an sqlite3 implementation found in the OS's include/library paths.
SQLITE3_FROM_OS=placeholder
######### MIME #########
######### pEp MIME #########
# Set pEpMIME= anything (there are ifdefs on it) in your local.conf if you want
# to compile built-in pEpMIME (requires a separate libppEpMIME source repo to be
# checked out elsewhere on the system - define or redefine these in local.conf
# if you want to use it; otherwise, we default to etpan. (This will eventually
# become the default, but not yet.
#
PEP_MIME=
PEP_MIME_SRC=$(HOME)/src/pEpMIME/src
######### libetpan #########
# libetpan library search flag
#
ETPAN_LIB =
#ETPAN_LIB=-L$(HOME)/lib
# libetpan include search flag
ETPAN_INC =
#ETPAN_INC=-I$(HOME)/include
# positron, early 2023: before my factoring this was included in the compilation
# flags on every platform; it is not needed on GNU/Linux as far as I can tell.
CPPFLAGS += $(ETPAN_INC)
######### OpenPGP #########
# Selects OpenPGP implementation.
ifeq ($(BUILD_FOR),OS/390)
OPENPGP=NETPGP
else
OPENPGP=SEQUOIA
endif
# Sequoia-specific variables
SEQUOIA_CFLAGS=
SEQUOIA_LDFLAGS=
SEQUOIA_LIB=
SEQUOIA_INC=
######### Engine internals #########
# C macros (not environment variables) that can be overridden:
# DEFAULT_KEYSERVER - string with default keyserver
# CRASHDUMP_DEFAULT_LINES - number of log lines to deliver for crashdumps
# Example:
# EXTRA_MACROS=-DDEFAULT_KEYSERVER=\"default-server.org\" -DCRASHDUMP_DEFAULT_LINES=23
EXTRA_MACROS =
######### C and C++ #########
# The following two variables will be appended to.
# You can thus not set them to a final, fixed value here.
ifeq ($(BUILD_FOR),Linux)
LDFLAGS +=
else ifeq ($(BUILD_FOR),Darwin)
# "-bind_at_load" helps find symbol resolution errors faster
LDFLAGS += -bind_at_load
endif
# Define C and C++ compilers.
ifeq ($(BUILD_FOR),OS/390)
CC = xlclang
CXX = xlclang++
else ifeq ($(BUILD_FOR),Linux)
CC = gcc
CXX = g++
else ifeq ($(BUILD_FOR),Darwin)
CC = clang
CXX = clang
# Notice that clang issues a warning when "-pthread" is used for linking;
# we do not want it as part of the compiler name expansion.
endif
# Almost all the options in CFLAGS and CXXFLAGS are the same. Define a single
# variable CORCXXFLAGS; we will use twice further down, to define CFLAGS and
# CXXFLAGS.
# Start defining some sensible CORCXXFLAGS and CPPFLAGS that are correct on
# every platform.
ifeq ($(DEBUG),release)
CORCXXFLAGS += -O3
# We can define this with no fear: the test suite does not work with NDEBUG
# defined, but its makefile will filter the option out.
CPPFLAGS += -DNDEBUG
# I believe that we can afford some extra cost in binary size in exchange for
# debugging symbols being available everywhere.
COMPILEWITHDEBUGGINGSYMBOLS = yes
else
CORCXXFLAGS += -O0
CPPFLAGS += -DDEBUG_ERRORSTACK
# Non-release build: include debug symbols.
COMPILEWITHDEBUGGINGSYMBOLS = yes
endif
ifdef WARN
CORCXXFLAGS+= -Wall
# I do *not* want -pedantic: for example I am currently using, on purpose,
# __PRETTY_FUNCTION__ only where supported.
# CORCXXFLAGS+= -pedantic
ifeq ($(BUILD_FOR),Linux)
CORCXXFLAGS += -Wstrict-aliasing=3
endif
else
# positron, early 2023: this has been there since before my time but I doubt
# it is a good idea. Let us suppress known-false-positive warnings, rather
# than all of them, blindly.
# CORCXXFLAGS+= -w
endif
# These options are needed everywhere to make #include paths work.
CPPFLAGS += -I../src -I../asn.1
# Extend with platform-specific options.
ifeq ($(BUILD_FOR),OS/390)
CORCXXFLAGS += -Wno-gnu-include-next -qnosearch -qlanglvl=NOLIBEXT
CORCXXFLAGS += -fdiagnostics-color=auto
CORCXXFLAGS += -Wno-gnu-include-next -qnosearch
CPPFLAGS += -I$(HERE) -I. -I/usr/include
CPPFLAGS += -I/usr/lpp/java/J8.0_64/include -I/usr/include
CPPFLAGS += -D_XOPEN_SOURCE=600 -D_POSIX_C_SOURCE=200112L -qlanglvl=NOLIBEXT
CPPFLAGS+=-W "l,xplink,dll" -W "c,float(ieee),xplink,dll,exportall"
else ifeq ($(BUILD_FOR),Linux)
CORCXXFLAGS += -pthread -fPIC -fstrict-aliasing
CORCXXFLAGS += -fdiagnostics-color=auto
LDLIBS += -luuid
else ifeq ($(BUILD_FOR),Darwin)
CORCXXFLAGS += -pthread -fPIC -fstrict-aliasing
CORCXXFLAGS += -fcolor-diagnostics
CPPFLAGS+=-D_DARWIN_C_SOURCE
endif
# Additional flags used for compiling ASN1C-generated code
ifeq ($(BUILD_FOR),Linux)
# The '_DEFAULT_SOURCE' feature test macro is required to suppress the warning
# _BSD_SOURCE and _SVID_SOURCE are deprecated, use _DEFAULT_SOURCE
# otherwise printed during the compilation of every asn1c-generated C file.
# It's a glibc specific warning, only present in few versions around ~2.19.
# See https://lwn.net/Articles/590381/ for a discussion.
CPPFLAGS_GENERATED = -D_DEFAULT_SOURCE
else ifeq ($(BUILD_FOR),Darwin)
CPPFLAGS_GENERATED =
endif
######### CFLAGS and CXXFLAGS #########
# We have essentially everything we need for both CFLAGS and CXXFLAGS in
# CORCXXFLAGS. Add the what ware still missing and is different, which is
# to say the language version.
CFLAGS = $(CORCXXFLAGS)
CXXFLAGS = $(CORCXXFLAGS)
ifeq ($(BUILD_FOR),Linux)
# We could actually use C17, but only recent compilers understand the option
# -std=c17; for example GCC 7, which dates back from 2017 and should work
# well, does not. The 2011 standard is almost identical to the 2017 version
# anyway.
# So here we could use -std=c11 . However when trying -std=c11 for a while
# GCC was bothering me all the time with warnings about the non-standard
# __PRETTY_FUNCTION__ , which are useless noise since we use that
# conditionally only where supported. Doing away with that, and using gnu11
# instead of c11 to silently allow GNU extension, while *not* using them
# except in conditional code when we also have a fallback alternative.
#
# If I use some unsupported C feature by mistake people will tell me
# --positron.
# At least on GNU/Linux, where culturally we are used to use environment
# variables, honor CC instead of unconditionally overriding it!
CFLAGS += -std=gnu11
CXXFLAGS += -std=c++11
else ifeq ($(BUILD_FOR),Darwin)
CXXFLAGS += -std=c++11
else ifeq ($(BUILD_FOR),OS/390)
CXXFLAGS += -std=c++11
endif
################################
# Include local.conf for any overrides and additional flags
################################
-include $(HERE)/local.conf
ifdef BUILD_CONFIG
include $(BUILD_CONFIG)
endif
# From now on we can keep into account user overrides.
######### Directories ########
# Notice the single quotes below: since user definitions can contain dollar
# signs it is important to prevent their expansion: shell variable references
# here must be expanded at run time, and not at compile time.
ifdef PER_USER_DIRECTORY
EXTRA_MACROS += -DPER_USER_DIRECTORY='"$(PER_USER_DIRECTORY)"'
endif
ifdef PER_MACHINE_DIRECTORY
EXTRA_MACROS += -DPER_MACHINE_DIRECTORY='"$(PER_MACHINE_DIRECTORY)"'
endif
# If sequoia has been set up and the SEQUOIA flags aren't defined, set them up.
# Otherwise, add them to the CFLAGS/CXXFLAGS/LDFLAGS and library/include variables
ifeq ($(OPENPGP),SEQUOIA)
# Overridable (default empty): SEQUOIA_CFLAGS
# Overridable (default empty): SEQUOIA_LDFLAGS
ifeq ($(SEQUOIA_LIB),)
SEQUOIA_LIB = -lpep_engine_sequoia_backend
endif
# Overridable (default empty): SEQUOIA_INC
# Use the Sequoia variables.
CORCXXFLAGS += $(SEQUOIA_CFLAGS)
CPPFLAGS += $(SEQUOIA_INC)
LD_FLAGS += $(SEQUOIA_LDFLAGS)
endif
# YML_PATH is needed in the environment of every call to a program of the YML2 distribution
export YML_PATH=$(YML2_PATH)
# Postprocess for pEpMIME
ifdef PEP_MIME
# Replace c++11 with c++14 for now (limiting the subst to the ++11 means it doesn't matter if gnu or not)
CXXFLAGS:=$(subst ++11,++14,$(CXXFLAGS)) -fPIC -fvisibility=hidden
endif
ifdef PEP_MIME
ifndef PEP_MIME_SRC
$(error "Compiling with the PEP_MIME option set requires the value of \
PEP_MIME_SRC to be set to the source directory for libpEpMIME")
else
CPPFLAGS+=-DPEP_BUILTIN_MIME
ifneq ($(BUILD_ON),OS/390)
LDLIBS+=-lstdc++
endif
ETPAN_LIB=
ETPAN_INC=
endif
endif
######### Append user-specified CPPFLAGS ########
CPPFLAGS += $(EXTRA_MACROS)
######### Handle COMPILEWITHDEBUGGINGSYMBOLS ########
# Add -g or equivalent if needed.
ifeq ($(COMPILEWITHDEBUGGINGSYMBOLS),yes)
ifeq ($(BUILD_FOR),Linux)
CORCXXFLAGS += -ggdb
else
CORCXXFLAGS += -g
endif
else ifeq ($(COMPILEWITHDEBUGGINGSYMBOLS),no)
# All good: do nothing.
else
$(error "COMPILEWITHDEBUGGINGSYMBOLS is defined as \
'$(COMPILEWITHDEBUGGINGSYMBOLS)' which is different from both \
'no' and 'yes'.")
endif
######### Handle DEBUG ########
# Set safety mode through a command-line preprocessor definition.
ifeq ($(DEBUG),release)
CPPFLAGS += -DPEP_SAFETY_MODE=PEP_SAFETY_MODE_RELEASE
else ifeq ($(DEBUG),debug)
CPPFLAGS += -DPEP_SAFETY_MODE=PEP_SAFETY_MODE_DEBUG
else ifeq ($(DEBUG),maintainer)
CPPFLAGS += -DPEP_SAFETY_MODE=PEP_SAFETY_MODE_MAINTAINER
else
$(error "DEBUG is defined as '$(DEBUG)' which is different from \
'release', 'debug' and 'maintainer'. Please read \
local.conf.example .")
endif
######### Handle MAXLOGLEVEL ########
# Set maximum log level through a command-line preprocessor definition.
ifndef MAXLOGLEVEL
ifeq ($(DEBUG),release)
MAXLOGLEVEL = PRODUCTION
else ifeq ($(DEBUG),debug)
MAXLOGLEVEL = FUNCTION
else ifeq ($(DEBUG),maintainer)
MAXLOGLEVEL = EVERYTHING
else
$(error "DEBUG is defined as '$(DEBUG)' which is different from \
'release', 'debug' and 'maintainer'. Please read \
local.conf.example .")
endif
endif
CPPFLAGS += -DPEP_LOG_LEVEL_MAXIMUM=PEP_LOG_LEVEL_$(MAXLOGLEVEL)
######### Handle LOGDESTINATIONS ########
# Set log destinations through a command-line preprocessor definition.
ifndef LOGDESTINATIONS
LOGDESTINATIONS = '(PEP_LOG_DESTINATION_STDERR|PEP_LOG_DESTINATION_DATABASE)'
endif
CPPFLAGS += -DPEP_LOG_DESTINATIONS=$(LOGDESTINATIONS)
######### Handle TRUSTWORDSXORCOMPATIBILITY ########
# Set xor-trustword compatibility through a command-line preprocessor
# definition.
ifdef TRUSTWORDSXORCOMPATIBILITY
CPPFLAGS += -DPEP_TRUSTWORDS_XOR_COMPATIBILITY=1
endif
######### Makefile debugging #########
# We are about to define the target, which (considering that Makefile.conf is
# included) will probably be the first of the Makefile. But we do not want that
# target to be the default target.
first: all
# Print the value of some make variables
dump-make-variables:
@echo "BUILD_ON: $(BUILD_FOR)"
@echo "BUILD_FOR: $(BUILD_FOR)"
@echo "DEBUG: $(DEBUG)"
@echo "CC: $(CC)"
@echo "CXX: $(CXX)"
@echo "CFLAGS: $(CFLAGS)"
@echo "CXXFLAGS: $(CXXFLAGS)"
@echo "CPPFLAGS: $(CPPFLAGS)"
@echo "SQLITE3_FROM_OS: $(SQLITE3_FROM_OS)"
######### Banner #########
ifneq ($(wildcard local.conf),)
LOCALCONFEXISTINGMESSAGE = local.conf
endif
ifdef BUILD_CONFIG
BUILD_CONFIGMESSAGE := BUILD_CONFIG used ($(BUILD_CONFIG))
endif
export BANNERPRINTED
ifndef BANNERPRINTED
BANNERPRINTED := yes
VERSION=$(shell cat $(HERE)src/pEpEngine_version.h | grep 'PEP_ENGINE_VERSION "' | awk '{print $$3}' | tr '"' ' ')
$(info ================================================)
$(info Building p≡p Engine $(VERSION))
$(info Safety mode '$(DEBUG)')
$(info Maximum log level '$(MAXLOGLEVEL)')
$(info Log desinations '$(LOGDESTINATIONS)')
$(info )
$(info CFLAGS: $(CFLAGS))
$(info CXXFLAGS: $(CXXFLAGS))
$(info CPPFLAGS: $(CPPFLAGS))
$(info Overrides: $(LOCALCONFEXISTINGMESSAGE) $(BUILD_CONFIGMESSAGE))
$(info ================================================)
endif