#!/usr/bin/make -f
# -*- makefile -*-

include /usr/share/dpkg/default.mk
include /usr/share/rustc/architecture.mk

# Disable CET, until JIT is ported too, preventing accidentally
# building incompatible binaries.
ifeq ($(DEB_HOST_ARCH),amd64)
export DEB_CFLAGS_MAINT_APPEND=-fcf-protection=none
export DEB_CXXFLAGS_MAINT_APPEND=-fcf-protection=none
endif

# Uncomment this to turn on verbose mode.
#export DH_VERBOSE=1

# This can be disabled if the bundled icu overtakes the system version,
# or for backporting
WITH_SYSTEM_ICU = no

export DEB_HOST_ARCH
# mozjs' build process does not seem to be compatible with other shells
# like zsh
export SHELL = /bin/sh
export PYTHON3 = python3
export PYTHONPATH=$(CURDIR)/debian/site-packages
export MOZBUILD_STATE_PATH = $(CURDIR)/debian/.mozbuild
# Please tell us what you're thinking...
export MOZ_CONFIGURE_TRACE = yes

SRCDIR = $(CURDIR)/js/src
BUILDDIR = $(CURDIR)/debian/build
CARGO_HOME = $(BUILDDIR)/cargo-home
CONFIGURE_FLAGS =
RUSTFLAGS =

UPSTREAM_VERSION = $(shell echo $(DEB_VERSION_UPSTREAM) | sed -e 's/[-+~].*//')
UPSTREAM_MAJOR = $(shell echo $(UPSTREAM_VERSION) | cut -d. -f1)
UPSTREAM_MINOR = $(shell echo $(UPSTREAM_VERSION) | cut -d. -f2)
UPSTREAM_PATCH = $(shell echo $(UPSTREAM_VERSION) | cut -d. -f3)

export MOZJS_VERSION = $(UPSTREAM_MAJOR)
LIBNAME = libmozjs-$(MOZJS_VERSION)
SONAME = $(LIBNAME).so.0

VERSIONED_LIBNAME = \
	$(LIBNAME).so.$(UPSTREAM_MAJOR).$(UPSTREAM_MINOR).$(UPSTREAM_PATCH)

# ia64 currently has toolchain issues, so relax the link optimization
ifneq (,$(findstring $(DEB_BUILD_ARCH),ia64))
	DEB_CFLAGS_MAINT_APPEND += -G0
	DEB_CXXFLAGS_MAINT_APPEND += -G0
endif

ifneq (,$(findstring $(DEB_BUILD_ARCH),sh4))
        DEB_CFLAGS_MAINT_APPEND += -mlra
        DEB_CXXFLAGS_MAINT_APPEND += -mlra
endif

ifneq (,$(findstring $(DEB_BUILD_ARCH),armel))
        DEB_LDFLAGS_MAINT_APPEND += -Wl,--allow-multiple-definition
        CONFIGURE_FLAGS += --disable-shared-memory
endif

export DEB_CFLAGS_MAINT_APPEND DEB_CXXFLAGS_MAINT_APPEND DEB_LDFLAGS_MAINT_APPEND

EXCLUDED_TESTS :=

# Upstream assumes everything uses SSE mathematics, but SSE isn't in
# Debian's baseline for i386, so we are stuck with i387 and its weird
# 80-bit floating point registers. We can't even work around this with
# -fexcess-precision=standard, because mozjs is C++.
# https://bugzilla.mozilla.org/show_bug.cgi?id=1621900
ifneq (,$(findstring $(DEB_BUILD_ARCH),i386))
	EXCLUDED_TESTS += basic/bug653153.js
	EXCLUDED_TESTS += basic/fdlibm-for-sin-cos-tan-argument.js
endif

# See: https://bugzilla.mozilla.org/show_bug.cgi?id=1755540
ifneq (,$(findstring $(DEB_BUILD_ARCH),powerpc ppc64 sparc64 s390x))
	EXCLUDED_TESTS += large-arraybuffers/basic.js
endif

ifneq (,$(findstring $(DEB_BUILD_ARCH),armel))
	EXCLUDED_TESTS += basic/bug-1649234-1.js
endif

ifneq (,$(findstring $(DEB_HOST_ARCH),mips mipsel mips64el))
CONFIGURE_FLAGS += --disable-jit
endif

ifeq ($(DEB_HOST_ARCH),sh4)
        DEB_LDFLAGS_MAINT_APPEND += -no-pie
endif

ifeq ($(WITH_SYSTEM_ICU),yes)
CONFIGURE_FLAGS += --with-system-icu
else
CONFIGURE_FLAGS += --without-system-icu
endif

# See https://github.com/rust-lang/rust/issues/66118
RUSTFLAGS += -Clto=thin

export RUSTFLAGS
export CARGO_HOME

%:
	dh $@ --sourcedirectory=$(SRCDIR) --builddirectory=$(BUILDDIR) --with pkgkde-symbolshelper

override_dh_clean:
	dh_clean
	find $(CURDIR) -name \*.pyc -exec rm {} \;
	find $(CURDIR)/js/src/ -type l -exec rm {} \;
	rm -f $(CURDIR)/js/src/config/nsinstall
	rm -f $(CURDIR)/js/src/dist/bin/.purgecaches
	rm -f  $(CURDIR)/js/src/js$(MOZJS_VERSION)-config \
		$(CURDIR)/js/src/mozjs-$(MOZJS_VERSION).pc \
		$(CURDIR)/js/src/symverscript
	rm -f $(CURDIR)/js/src/config.log
	rm -fr $(CURDIR)/intl/icu/source/autom4te.cache
	rm -fr $(CURDIR)/debian/build
	rm -rf third_party/python/psutil/build/ third_party/python/psutil/psutil/_*.so third_party/python/psutil/tmp/

override_dh_autoreconf:
	WITH_SYSTEM_ICU=$(WITH_SYSTEM_ICU) dh_autoreconf $(CURDIR)/debian/autogen.sh

# dh_auto_configure does not properly handle autoconf2.13 generated configure
# scripts, so we call configure ourselves.
# http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=570375
# The bundled copy of icu prefers clang, which we need to override to
# use gcc because clang doesn't support our DEB_CFLAGS_MAINT_APPEND
ifeq ($(origin CC),default)
CC := $(DEB_HOST_GNU_TYPE)-gcc
endif
ifeq ($(origin CXX),default)
CXX := $(DEB_HOST_GNU_TYPE)-g++
endif

override_dh_auto_configure:
	mkdir -p $(CURDIR)/debian/site-packages
	ln -fns /usr/lib/python3/dist-packages/cgi* $(CURDIR)/debian/site-packages/
	mkdir -p $(BUILDDIR)/dist/cppunittests
	cd $(BUILDDIR); \
	if env \
		CC=$(CC) \
		CXX=$(CXX) \
		RUST_HOST=$(DEB_BUILD_RUST_TYPE) \
		RUST_TARGET=$(DEB_HOST_RUST_TYPE) \
	$(SHELL) $(SRCDIR)/configure \
		--host=$(DEB_BUILD_GNU_TYPE) \
		--target=$(DEB_HOST_GNU_TYPE) \
		--prefix=/usr \
		--includedir=/usr/include/${DEB_HOST_MULTIARCH} \
		--libdir=/usr/lib/${DEB_HOST_MULTIARCH}/ \
		--with-system-zlib \
		--disable-strip \
		--with-intl-api \
		--enable-readline \
		--disable-jemalloc \
		$(CONFIGURE_FLAGS) \
	; then \
		echo Configure successful; \
	else \
		echo Configure failed with status $$?; \
		tail -v -n +0 config.log; \
		exit 1; \
	fi

execute_before_dh_install:
	# move library and create additional symlinks to standardize the file layout
	cd $(CURDIR)/debian/tmp/usr/lib/${DEB_HOST_MULTIARCH}/ && \
		mv libjs_static.ajs $(LIBNAME).a && \
		mv $(LIBNAME).so $(VERSIONED_LIBNAME) && \
		ln -s $(VERSIONED_LIBNAME) $(SONAME) && \
		ln -s $(SONAME) $(LIBNAME).so
	rm debian/tmp/usr/lib/${DEB_HOST_MULTIARCH}/$(LIBNAME).a

execute_after_dh_fixperms:
	chmod a-x $(CURDIR)/debian/$(LIBNAME)-dev/usr/lib/${DEB_HOST_MULTIARCH}/pkgconfig/mozjs-$(MOZJS_VERSION).pc

override_dh_gnome:
	dh_gnome --no-gnome-versions

override_dh_auto_test:
	@:
ifeq ($(DEB_HOST_GNU_TYPE),$(DEB_BUILD_GNU_TYPE))
ifeq (,$(findstring nocheck,$(DEB_BUILD_OPTIONS)))
	SRCDIR=${SRCDIR} BUILDDIR=${BUILDDIR} DEB_HOST_ARCH=${DEB_HOST_ARCH} $(CURDIR)/debian/test.sh $(EXCLUDED_TESTS)
endif
endif