Makefile

XCODE_DEVELOPER = $(shell xcode-select --print-path)
IOS_PLATFORM ?= iPhoneOS

# Pick latest SDK in the directory
IOS_PLATFORM_DEVELOPER = ${XCODE_DEVELOPER}/Platforms/${IOS_PLATFORM}.platform/Developer
IOS_SDK = ${IOS_PLATFORM_DEVELOPER}/SDKs/$(shell ls ${IOS_PLATFORM_DEVELOPER}/SDKs | sort -r | head -n1)

all: lib/libspatialite.a
lib/libspatialite.a: build_arches
	mkdir -p lib
	mkdir -p include

	# Copy includes
	cp -R build/arm64/include/geos include
	cp -R build/arm64/include/spatialite include
	cp -R build/arm64/include/*.h include

	# Make fat libraries for all architectures
	for file in build/arm64/lib/*.a; \
		do name=`basename $$file .a`; \
		lipo -create \
			-arch armv7 build/armv7/lib/$$name.a \
			-arch armv7s build/armv7s/lib/$$name.a \
			-arch arm64 build/arm64/lib/$$name.a \
			-arch i386 build/i386/lib/$$name.a \
			-arch x86_64 build/x86_64/lib/$$name.a \
			-output lib/$$name.a \
		; \
		done;

# Build separate architectures
build_arches:
	${MAKE} arch ARCH=armv7 IOS_PLATFORM=iPhoneOS HOST=arm-apple-darwin
	${MAKE} arch ARCH=armv7s IOS_PLATFORM=iPhoneOS HOST=arm-apple-darwin
	${MAKE} arch ARCH=arm64 IOS_PLATFORM=iPhoneOS HOST=arm-apple-darwin
	${MAKE} arch ARCH=i386 IOS_PLATFORM=iPhoneSimulator HOST=i386-apple-darwin
	${MAKE} arch ARCH=x86_64 IOS_PLATFORM=iPhoneSimulator HOST=x86_64-apple-darwin

PREFIX = ${CURDIR}/build/${ARCH}
LIBDIR = ${PREFIX}/lib
BINDIR = ${PREFIX}/bin
INCLUDEDIR = ${PREFIX}/include

CXX = ${XCODE_DEVELOPER}/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang++
CC = ${XCODE_DEVELOPER}/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang
CFLAGS = -isysroot ${IOS_SDK} -I${IOS_SDK}/usr/include -arch ${ARCH} -I${INCLUDEDIR} -miphoneos-version-min=9.0 -O3 -fembed-bitcode
CXXFLAGS = -stdlib=libc++ -std=c++11 -isysroot ${IOS_SDK} -I${IOS_SDK}/usr/include -arch ${ARCH} -I${INCLUDEDIR} -miphoneos-version-min=9.0 -O3 -fembed-bitcode
LDFLAGS = -stdlib=libc++ -isysroot ${IOS_SDK} -L${LIBDIR} -L${IOS_SDK}/usr/lib -arch ${ARCH} -miphoneos-version-min=9.0
LIBTOOL=${XCODE_DEVELOPER}/Toolchains/XcodeDefault.xctoolchain/usr/bin/libtool

arch: ${LIBDIR}/libspatialite.a

${LIBDIR}/libspatialite.a: ${LIBDIR}/libsqlite3.a ${LIBDIR}/libproj.a ${LIBDIR}/libgeos.a ${CURDIR}/spatialite
	cd spatialite && env LIBTOOL=${LIBTOOL} \
	CXX=${CXX} \
	CC=${CC} \
	CFLAGS="${CFLAGS} -Wno-error=implicit-function-declaration -DACCEPT_USE_OF_DEPRECATED_PROJ_API_H -I${INCLUDEDIR}" \
	CXXFLAGS="${CXXFLAGS} -Wno-error=implicit-function-declaration -DACCEPT_USE_OF_DEPRECATED_PROJ_API_H -I${INCLUDEDIR}" \
	LDFLAGS="${LDFLAGS} -liconv -lgeos -lgeos_c -lc++ -L${LIBDIR}" ./configure --host=${HOST} --enable-freexl=no --enable-libxml2=no --prefix=${PREFIX} --with-sysroot=${PREFIX} --with-geosconfig=${BINDIR}/geos-config --enable-static --disable-shared && make clean install-strip

${CURDIR}/spatialite:
	curl http://www.gaia-gis.it/gaia-sins/libspatialite-sources/libspatialite-4.3.0a.tar.gz > spatialite.tar.gz
	tar -xzf spatialite.tar.gz
	rm spatialite.tar.gz
	mv libspatialite-4.3.0a spatialite
	./update-spatialite
	./change-deployment-target spatialite

${LIBDIR}/libproj.a: ${CURDIR}/proj
	cd proj && git clean -dfx && ./autogen.sh && env \
	CXX=${CXX} \
	CC=${CC} \
	CFLAGS="${CFLAGS}" \
	CXXFLAGS="${CXXFLAGS}" \
	LDFLAGS="${LDFLAGS}" ./configure --host=${HOST} --prefix=${PREFIX} --without-curl --disable-tiff --enable-static --disable-shared && make clean install

${CURDIR}/proj:
	git submodule init
	git submodule update

${LIBDIR}/libgeos.a: ${CURDIR}/geos
	cd geos && git clean -dfx && ./autogen.sh && env \
	CXX=${CXX} \
	CC=${CC} \
	CFLAGS="${CFLAGS}" \
	CXXFLAGS="${CXXFLAGS}" \
	LDFLAGS="${LDFLAGS}" ./configure --host=${HOST} --prefix=${PREFIX} --disable-python --enable-static --disable-shared --disable-inline && make clean install

${CURDIR}/geos:
	git submodule init
	git submodule update

${LIBDIR}/libsqlite3.a: ${CURDIR}/sqlite3
	cd sqlite3 && env LIBTOOL=${LIBTOOL} \
	CXX=${CXX} \
	CC=${CC} \
	CFLAGS="${CFLAGS} -DSQLITE_ENABLE_COLUMN_METADATA=1 -DSQLITE_MAX_VARIABLE_NUMBER=250000 -DSQLITE_THREADSAFE=1 -DSQLITE_ENABLE_RTREE=1 -DSQLITE_ENABLE_FTS3=1 -DSQLITE_ENABLE_FTS3_PARENTHESIS=1" \
	CXXFLAGS="${CXXFLAGS} -DSQLITE_ENABLE_COLUMN_METADATA=1 -DSQLITE_MAX_VARIABLE_NUMBER=250000 -DSQLITE_THREADSAFE=1 -DSQLITE_ENABLE_RTREE=1 -DSQLITE_ENABLE_FTS3=1 -DSQLITE_ENABLE_FTS3_PARENTHESIS=1" \
	LDFLAGS="-Wl,-arch -Wl,${ARCH} -arch_only ${ARCH} ${LDFLAGS}" ./configure --host=${HOST} --prefix=${PREFIX} \
	   --enable-dynamic-extensions --enable-static --disable-shared && make clean install-includeHEADERS install-libLTLIBRARIES

${CURDIR}/sqlite3:
	curl https://www.sqlite.org/2020/sqlite-autoconf-3320300.tar.gz > sqlite3.tar.gz
	tar xzvf sqlite3.tar.gz
	rm sqlite3.tar.gz
	mv sqlite-autoconf-3320300 sqlite3
	./change-deployment-target sqlite3
	touch sqlite3

package:
	zip -r libspatialite-ios-release.zip lib include COPYING

clean:
	rm -rf build spatialite include lib sqlite3
	cd geos && git clean -dfx && cd ..
	cd proj && git clean -dfx && cd ..