CocoaPods issue with linking libxlsxwriter and BoringSSL-GRPC (Xcode 12.5)

[ulmentflam]

• I've read and understood the CONTRIBUTING guidelines and have done my best effort to follow.

Report

What did you do?

Run pod install
Run Xcode Build
See Buildtime failure:

In file included from /Users/.../LibXlsxWriterSwiftSample/Pods/libxlsxwriter/third_party/md5/md5.h:42:
/Users/.../LibXlsxWriterSwiftSample/Pods/BoringSSL-GRPC/src/include/openssl/md5.h:60:10: fatal error: 'openssl_grpc/base.h' file not found
#include <openssl_grpc/base.h>
         ^~~~~~~~~~~~~~~~~~~~~
1 error generated.

What did you expect to happen?

The pod dependencies should have built correctly and linked /Pods/libxlsxwriter/third_party/md5/md5.c to the header /Pods/libxlsxwriter/third_party/md5/md5.h.

What happened instead?

The pods didn't build correctly and linked /Pods/libxlsxwriter/third_party/md5/md5.ct to the BoringSSL-GRPC header Pods/BoringSSL-GRPC/src/include/openssl/md5.h: instead of the header included in the libxlsxwriter project.

CocoaPods Environment

Stack

   CocoaPods : 1.10.1
        Ruby : ruby 2.6.3p62 (2019-04-16 revision 67580) [universal.x86_64-darwin20]
    RubyGems : 3.0.3
        Host : macOS 11.4 (20F71)
       Xcode :  ()
         Git : git version 2.23.0
Ruby lib dir : /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib
Repositories : 52inc - git - https://github.com/52inc/52inc-Spec.git @ 5b1e2c9e8da7904c6ecb56fc64843b0a046ba82f

               52inc-Spec - git - git@github.com:52inc/52inc-Spec.git @ 2849bcb8a099ce18b08c821b2fd6514c4dac5fd4

               Specs - git - git@github.com:CocoaPods/Specs.git @ 568b39834e81aa7bbede17766f07dcd32e7bb52a

               trunk - CDN - https://cdn.cocoapods.org/
               twilio - git - https://github.com/twilio/cocoapod-specs @ 9bf659ed7246ba34625b81754031fbd5ac20fe68

Installation Source

Executable Path: /usr/local/bin/pod

Plugins

claide-plugins         : 0.9.2
cocoapods-deintegrate  : 1.0.4
cocoapods-dependencies : 1.0.0.beta.1
cocoapods-plugins      : 1.0.0
cocoapods-search       : 1.0.0
cocoapods-stats        : 1.1.0
cocoapods-trunk        : 1.4.1
cocoapods-try          : 1.1.0
cocoapods_debug        : 0.1.0

Podfile

# Uncomment the next line to define a global platform for your project
platform :ios, '13.0'

target 'LibXlsxWriterSwiftSample' do
  # Comment the next line if you don't want to use dynamic frameworks
  use_frameworks!

  # Pods for LibXlsxWriterSwiftSample
  pod 'libxlsxwriter', '~> 0.9'
  pod 'Sourceful', '~> 0.2' #Only present for synzax highlighting
  pod 'BoringSSL-GRPC'
end

I also built this in 1-10-stable

Project that demonstrates the issue

I have forked the sample project for libxlsxwriter and added BoringSSL-GRPC into the Podfile.
https://github.com/ulmentflam/LibXlsxWriterSwiftSample

I have also created an issue on the libxlsxwriter application jmcnamara/libxlsxwriter#342

[paulb777]

Some context about this issue from https://github.com/firebase/firebase-ios-sdk/blob/master/FirebaseFirestore.podspec#L54 which accesses headers via preserve_paths to workaround Xcode's sloppy header map functionality:

  # Internal headers that aren't necessarily globally unique. Most C++ internal
  # headers should be here to avoid polluting the global header map with
  # unprefixed filenames.
  #
  # These filenames won't be available in Xcode's "quick open" but the types
  # inside these files will be available.

[ulmentflam]

I was able to fix this issue in the libxlsxwriter library using a similar work around that the Firebase iOS SDK used.

[graphicstone]

Hi @ulmentflam @paulb777 , I am also facing the same error of 'openssl_grpc/base.h' file not found. The complete errro is

Lexical or Preprocessor Issue (Xcode): 'openssl/base.h' file not found /Users/graphicstone/StudioProjects/toad_cash_mobile/ios/Pods/BoringSSL-GRPC/src/include/openssl/aes.h:51:9

Can you please help me with a fix here, I am stuck with this error for the past 2 days and I have tried all of the solutions that are provided on Stackoverflow and other platforms. I have tried clearing the Pods, Podfile.lock Pod cache clean and everything but none is working for me.

I am providing my Podfile below for further reference:

# Uncomment this line to define a global platform for your project
platform :ios, '14.0'

# CocoaPods analytics sends network stats synchronously affecting flutter build latency.
ENV['COCOAPODS_DISABLE_STATS'] = 'true'

project 'Runner', {
  'Debug' => :debug,
  'Profile' => :release,
  'Release' => :release,
}

def flutter_root
  generated_xcode_build_settings_path = File.expand_path(File.join('..', 'Flutter', 'Generated.xcconfig'), __FILE__)
  unless File.exist?(generated_xcode_build_settings_path)
    raise "#{generated_xcode_build_settings_path} must exist. If you're running pod install manually, make sure flutter pub get is executed first"
  end

  File.foreach(generated_xcode_build_settings_path) do |line|
    matches = line.match(/FLUTTER_ROOT\=(.*)/)
    return matches[1].strip if matches
  end
  raise "FLUTTER_ROOT not found in #{generated_xcode_build_settings_path}. Try deleting Generated.xcconfig, then run flutter pub get"
end

require File.expand_path(File.join('packages', 'flutter_tools', 'bin', 'podhelper'), flutter_root)

flutter_ios_podfile_setup

target 'Runner' do
  use_frameworks!
  use_modular_headers!
  # see...
  # https://github.com/juliansteenbakker/mobile_scanner/issues/335#issuecomment-1308829103
  # https://issuetracker.google.com/issues/254418199#comment48
  pod 'MLKitVision', :podspec => 'MLKitVision.podspec.json'
  pod 'MLKitCommon', :podspec => 'MLKitCommon.podspec.json'
  pod 'BoringSSL-GRPC'
  pod 'gRPC-Core'
  pod 'Web3Auth'

  flutter_install_all_ios_pods File.dirname(File.realpath(__FILE__))
end

post_install do |installer|
  installer.pods_project.targets.each do |target|
    flutter_additional_ios_build_settings(target)
  end
end

I have a flutter project and I am not very fluent in iOS development so there might be something in the Podfile that I am missing, any help would mean a lot, thanks.

[samyakb-work]

I was able to fix this issue in the libxlsxwriter library using a similar work around that the Firebase iOS SDK used.

@ulmentflam, could you please elaborate how you were able to fix it?