Pod install on linux

bonjour,

je cherche a crée une authentification auth0 sur ma nouvelle application en React native via un tutoriel issus du site officiel de Auth0. il s’agit de mettre en place le "download sample" > https://auth0.com/docs/quickstart/native/react-native/00-login

malheureusement je bloc quand il s'agit d'installer le module pod comme il est expliquer dans le popUP

yarn install # Install dependencies
cd ios && pod install # Install the iOS module Pod
yarn run ios # Run on iOS device
yarn run android

étant sur linux je me demande si cette commande n'est pas uniquement fonctionnel sur IOS ...
pourtant rien ne semble indiquer cela.

je ne peut plus rien faire sans avoir avant installer ce module . la commande "pod install" me retourne cela en rouge :

[!] /bin/bash -c
set -e
#!/bin/bash

# Copyright (c) Facebook, Inc. and its affiliates.
#
# This source code is licensed under the MIT license found in the
# LICENSE file in the root directory of this source tree.

set -e
PLATFORM_NAME="${PLATFORM_NAME:-iphoneos}"
CURRENT_ARCH="${CURRENT_ARCH}"

if [ -z "$CURRENT_ARCH" ] || [ "$CURRENT_ARCH" == "undefined_arch" ]; then
    # Xcode 10 beta sets CURRENT_ARCH to "undefined_arch", this leads to incorrect linker arg.
    # it's better to rely on platform name as fallback because architecture differs between simulator and device

    if [[ "$PLATFORM_NAME" == *"simulator"* ]]; then
        CURRENT_ARCH="x86_64"
    else
        CURRENT_ARCH="armv7"
    fi

fi

export CC="$(xcrun -find -sdk $PLATFORM_NAME cc) -arch $CURRENT_ARCH -isysroot $(xcrun -sdk $PLATFORM_NAME --show-sdk-path)"
export CXX="$CC"

# Remove automake symlink if it exists
if [ -h "test-driver" ]; then
    rm test-driver
fi

./configure --host arm-apple-darwin

# Fix build for tvOS
cat << EOF >> src/config.h

/* Add in so we have Apple Target Conditionals */
#ifdef __APPLE__
#include <TargetConditionals.h>
#include <Availability.h>
#endif

/* Special configuration for AppleTVOS */
#if TARGET_OS_TV
#undef HAVE_SYSCALL_H
#undef HAVE_SYS_SYSCALL_H
#undef OS_MACOSX
#endif
/* Special configuration for ucontext */
#undef HAVE_UCONTEXT_H
#undef PC_FROM_UCONTEXT
#if defined(__x86_64__)
#define PC_FROM_UCONTEXT uc_mcontext->__ss.__rip
#elif defined(__i386__)
#define PC_FROM_UCONTEXT uc_mcontext->__ss.__eip
#endif
EOF

# Prepare exported header include
EXPORTED_INCLUDE_DIR="exported/glog"

mkdir -p exported/glog
cp -f src/glog/log_severity.h "$EXPORTED_INCLUDE_DIR/"
cp -f src/glog/logging.h "$EXPORTED_INCLUDE_DIR/"
cp -f src/glog/raw_logging.h "$EXPORTED_INCLUDE_DIR/"
cp -f src/glog/stl_logging.h "$EXPORTED_INCLUDE_DIR/"
cp -f src/glog/vlog_is_on.h "$EXPORTED_INCLUDE_DIR/"

checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for arm-apple-darwin-strip... no
checking for strip... strip
checking for a thread-safe mkdir -p... /bin/mkdir -p
checking for gawk... no
checking for mawk... mawk
checking whether make sets $(MAKE)... yes
checking whether make supports nested variables... yes
checking for arm-apple-darwin-gcc...  -arch armv7 -isysroot
checking whether the C compiler works... no
/bin/bash: ligne 24: xcrun : commande introuvable
/bin/bash: ligne 24: xcrun : commande introuvable
/home/user/Library/Caches/CocoaPods/Pods/External/glog/2263bd123499e5b93b5efe24871be317-aefd1/missing: Unknown `--is-lightweight' option
Try `/home/user/Library/Caches/CocoaPods/Pods/External/glog/2263bd123499e5b93b5efe24871be317-aefd1/missing --help' for more information
configure: WARNING: 'missing' script is too old or missing
configure: error: in `/home/leleuh/Library/Caches/CocoaPods/Pods/External/glog/2263bd123499e5b93b5efe24871be317-aefd1':
configure: error: C compiler cannot create executables
See `config.log' for more details

l'erreur semble venir du faite que xcrun est introuvable, est d'apres internet c'est logique vue que il est impossible d'installer Xcode sur un linux.

ma question est donc comment mettre en place une authentification android & IOS via Auth0 sur react native avec un ubuntu ?

merci de votre aide