added script to compile the lib to iphone sdk >= 13.5

RELICENSE/mileschet.md

@@ -0,0 +1,6 @@
+Permission to Relicense under MPLv2 or any other OSI approved license chosen by the current ZeroMQ BDFL
+This is a statement by Roberto Santacroce Martins that grants permission to relicense its copyrights in the libzmq C++ library (ZeroMQ) under the Mozilla Public License v2 (MPLv2) or any other Open Source Initiative approved license chosen by the current ZeroMQ BDFL (Benevolent Dictator for Life).
+
+A portion of the commits made by the Github handle "mileschet", with commit author "Roberto Santacroce Martins miles.chet@gmail.com", are copyright of Roberto Santacroce Martins. This document hereby grants the libzmq project team to relicense libzmq, including all past, present and future contributions of the author listed above.
+
+Roberto Santacroce Martins 2020/07/06

builds/ios/build_ios.sh

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+#!/bin/sh
+# This is a first attempt to create a script to libzmq for iOS >= 13.5, including arm64
+# inspired on https://raw.githubusercontent.com/drewcrawford/libzmq-ios/master/libzmq.sh
+
+ARCHS=${ARCHS:-"armv7 armv7s arm64 x86_64"}
+DEVELOPER=$(xcode-select -print-path)
+SCRIPTDIR=$( (cd -P $(dirname $0) && pwd) )
+DISTLIBDIR="${SCRIPTDIR}/lib"
+DSTDIR=${SCRIPTDIR}
+BUILDDIR="${DSTDIR}/libzmq_build"
+DISTDIR="${DSTDIR}/libzmq_dist"
+LIBDIR=$(dirname $(dirname ${SCRIPTDIR}))
+${LIBDIR}/autogen.sh
+
+# http://libwebp.webm.googlecode.com/git/iosbuild.sh
+# Extract the latest SDK version from the final field of the form: iphoneosX.Y
+SDK=$(xcodebuild -showsdks \
+    | grep iphoneos | sort | tail -n 1 | awk '{print substr($NF, 9)}'
+    )
+
+IOS_VERSION_MIN=8.0
+OTHER_LDFLAGS=""
+OTHER_CFLAGS="-Os -Qunused-arguments"
+OTHER_CXXFLAGS="-Os"
+
+for ARCH in $ARCHS
+do
+    BUILDARCHDIR="$BUILDDIR/$ARCH"
+    mkdir -p ${BUILDARCHDIR}
+
+    case ${ARCH} in
+        armv7)
+	    PLATFORM="iPhoneOS"
+	    HOST="${ARCH}-apple-darwin"
+	    export BASEDIR="${DEVELOPER}/Platforms/${PLATFORM}.platform/Developer"
+	    export ISDKROOT="${BASEDIR}/SDKs/${PLATFORM}${SDK}.sdk"
+	    export CXXFLAGS="${OTHER_CXXFLAGS}"
+	    export CPPFLAGS="-arch ${ARCH} -isysroot ${ISDKROOT} -mios-version-min=${IOS_VERSION_MIN} ${OTHER_CPPFLAGS}"
+	    export LDFLAGS="-arch ${ARCH} -isysroot ${ISDKROOT} ${OTHER_LDFLAGS}"
+            ;;
+
+        armv7s)
+	    PLATFORM="iPhoneOS"
+	    HOST="${ARCH}-apple-darwin"
+	    export BASEDIR="${DEVELOPER}/Platforms/${PLATFORM}.platform/Developer"
+	    export ISDKROOT="${BASEDIR}/SDKs/${PLATFORM}${SDK}.sdk"
+	    export CXXFLAGS="${OTHER_CXXFLAGS}"
+	    export CPPFLAGS="-arch ${ARCH} -isysroot ${ISDKROOT} -mios-version-min=${IOS_VERSION_MIN} ${OTHER_CPPFLAGS}"
+	    export LDFLAGS="-arch ${ARCH} -isysroot ${ISDKROOT} ${OTHER_LDFLAGS}"
+            ;;
+
+        arm64)
+	    PLATFORM="iPhoneOS"
+	    HOST="arm-apple-darwin"
+	    export BASEDIR="${DEVELOPER}/Platforms/${PLATFORM}.platform/Developer"
+	    export ISDKROOT="${BASEDIR}/SDKs/${PLATFORM}${SDK}.sdk"
+	    export CXXFLAGS="${OTHER_CXXFLAGS}"
+	    export CPPFLAGS="-arch ${ARCH} -isysroot ${ISDKROOT} -mios-version-min=${IOS_VERSION_MIN} ${OTHER_CPPFLAGS}"
+	    export LDFLAGS="-arch ${ARCH} -isysroot ${ISDKROOT} ${OTHER_LDFLAGS}"
+            ;;
+
+        x86_64)
+	    PLATFORM="iPhoneSimulator"
+	    HOST="${ARCH}-apple-darwin"
+	    export BASEDIR="${DEVELOPER}/Platforms/${PLATFORM}.platform/Developer"
+	    export ISDKROOT="${BASEDIR}/SDKs/${PLATFORM}${SDK}.sdk"
+	    export CXXFLAGS="${OTHER_CXXFLAGS}"
+	    export CPPFLAGS="-arch ${ARCH} -isysroot ${ISDKROOT} -mios-version-min=${IOS_VERSION_MIN} ${OTHER_CPPFLAGS}"
+	    export LDFLAGS="-arch ${ARCH} ${OTHER_LDFLAGS}"
+	    echo "LDFLAGS $LDFLAGS"
+            ;;
+        *)
+	    echo "Unsupported architecture ${ARCH}"
+	    exit 1
+            ;;
+    esac
+
+    export PATH="${DEVELOPER}/Toolchains/XcodeDefault.xctoolchain/usr/bin:${DEVELOPER}/Toolchains/XcodeDefault.xctoolchain/usr/sbin:$PATH"
+
+    echo "Configuring for ${ARCH}..."
+    set +e
+    cd ${LIBDIR} 
+    set -e
+    ${LIBDIR}/configure \
+	--prefix=${BUILDARCHDIR} \
+	--disable-shared \
+	--enable-static \
+	--host=${HOST}\
+	--with-libsodium=${LIBSODIUM_DIST}
+
+    echo "Building ${LIBNAME} for ${ARCH}..."
+    cd ${LIBDIR}
+    
+    make -j8 V=0
+    make install
+
+    LIBLIST+="${BUILDARCHDIR}/lib/${LIBNAME} "
+done
+
+echo "Done !"
+echo ${LIBLIST}