1. Problem
When i used CocoaPods, i met problem. When yarn install Installing glog (0.3.5), there was a problem.
Yarn tried installing glog (0.3.5) error, but yarn show under message! C compiler cannot create executables..
Installing glog (0.3.5)
[!] /bin/bash -c
set -e
#!/bin/bash
# Copyright (c) Meta Platforms, Inc. and 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 [[ "$PLATFORM_NAME" == *"simulator"* ]]; then
CURRENT_ARCH="x86_64"
else
CURRENT_ARCH="arm64"
fi
fi
if [ "$CURRENT_ARCH" == "arm64" ]; then
cat <<\EOF >>fix_glog_0.3.5_apple_silicon.patch
diff --git a/config.sub b/config.sub
index 1761d8b..43fa2e8 100755
--- a/config.sub
+++ b/config.sub
@@ -1096,6 +1096,9 @@ case $basic_machine in
basic_machine=z8k-unknown
os=-sim
;;
+ arm64-*)
+ basic_machine=$(echo $basic_machine | sed 's/arm64/aarch64/')
+ ;;
none)
basic_machine=none-none
os=-none
EOF
patch -p1 config.sub fix_glog_0.3.5_apple_silicon.patch
fi
export CC="$(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
# Manually disable gflags include to fix issue https://github.com/facebook/react-native/issues/28446
sed -i '' 's/\@ac_cv_have_libgflags\@/0/' src/glog/logging.h.in
sed -i '' 's/HAVE_LIB_GFLAGS/HAVE_LIB_GFLAGS_DISABLED/' src/config.h.in
./configure --host arm-apple-darwin
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 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/"
patching file config.sub
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... ./install-sh -c -d
checking for gawk... no
checking for mawk... no
checking for nawk... no
checking for awk... awk
checking whether make sets $(MAKE)... yes
checking whether make supports nested variables... yes
checking for arm-apple-darwin-gcc... /Library/Developer/CommandLineTools/usr/bin/cc -arch arm64 -isysroot
checking whether the C compiler works... no
xcrun: error: SDK "iphoneos" cannot be located
xcrun: error: SDK "iphoneos" cannot be located
xcrun: error: SDK "iphoneos" cannot be located
xcrun: error: unable to lookup item 'Path' in SDK 'iphoneos'
/Users/user/Library/Caches/CocoaPods/Pods/External/glog/2263bd123499e5b93b5efe24871be317-476ee/missing: Unknown `--is-lightweight' option
Try `/Users/user/Library/Caches/CocoaPods/Pods/External/glog/2263bd123499e5b93b5efe24871be317-476ee/missing --help' for more information
configure: WARNING: 'missing' script is too old or missing
configure: error: in `/Users/user/Library/Caches/CocoaPods/Pods/External/glog/2263bd123499e5b93b5efe24871be317-476ee':
configure: error: C compiler cannot create executables
See `config.log' for more details
2. Solving
When if you see this problem, you can use this way.
In my case, i use this command sudo xcode-select --switch /Applications/Xcode.app
. This makes problem didn’t aries.
$ sudo xcode-select --switch /Applications/Xcode.app
I found solution on stackoverflow. Thanks for BigPun86. The reason of this problem is more then one Xcode development version, Many version of Xcode
. So we have to pick Xcode.app
.
Most of the times this happens when you have more then one Xcode development version. Well thats what happened to me. You can try re-configuring/changing the xcode-select path to default Xcode.app:
Check your Xcode app name first
xcode-select -p
If its not Xcode.app then do this:
sudo xcode-select --switch /Applications/Xcode.app
reference
- https://stackoverflow.com/questions/50448717/os-pod-install-error-module-glog-cannot-be-installed