Fails to compile gem on Sequoia 15.1

[mtrepanier]

I have uninstalled all ruby version and rbenv and ruby-build. Deleted all folders also.

When I run gem install unf_ext --verbose with verbose to get more info, this what I have.

Ruby 3.4.1
gem version 0.0.9.1

macos sequoi 15.1
xcode 16

Apple clang version 16.0.0 (clang-1600.0.26.6)
Target: arm64-apple-darwin24.1.0
Thread model: posix
InstalledDir: /Library/Developer/CommandLineTools/usr/bin

xcode-select: note: Command line tools are already installed. Use "Software Update" in System Settings or the softwareupdate command line interface to install updates

gem install unf_ext --verbose

HEAD https://index.rubygems.org/versions
200 OK
GET https://index.rubygems.org/info/unf_ext
200 OK
Downloading gem unf_ext-0.0.9.1.gem
GET https://index.rubygems.org/gems/unf_ext-0.0.9.1.gem
Fetching unf_ext-0.0.9.1.gem
200 OK
/Users/martin.trepanier/.rbenv/versions/3.4.1/lib/ruby/gems/3.4.0/gems/unf_ext-0.0.9.1/.document
/Users/martin.trepanier/.rbenv/versions/3.4.1/lib/ruby/gems/3.4.0/gems/unf_ext-0.0.9.1/.github/workflows/unf_ext.yml
/Users/martin.trepanier/.rbenv/versions/3.4.1/lib/ruby/gems/3.4.0/gems/unf_ext-0.0.9.1/.gitignore
/Users/martin.trepanier/.rbenv/versions/3.4.1/lib/ruby/gems/3.4.0/gems/unf_ext-0.0.9.1/CHANGELOG.md
/Users/martin.trepanier/.rbenv/versions/3.4.1/lib/ruby/gems/3.4.0/gems/unf_ext-0.0.9.1/Gemfile
/Users/martin.trepanier/.rbenv/versions/3.4.1/lib/ruby/gems/3.4.0/gems/unf_ext-0.0.9.1/LICENSE.txt
/Users/martin.trepanier/.rbenv/versions/3.4.1/lib/ruby/gems/3.4.0/gems/unf_ext-0.0.9.1/README.md
/Users/martin.trepanier/.rbenv/versions/3.4.1/lib/ruby/gems/3.4.0/gems/unf_ext-0.0.9.1/Rakefile
/Users/martin.trepanier/.rbenv/versions/3.4.1/lib/ruby/gems/3.4.0/gems/unf_ext-0.0.9.1/ext/unf_ext/extconf.rb
/Users/martin.trepanier/.rbenv/versions/3.4.1/lib/ruby/gems/3.4.0/gems/unf_ext-0.0.9.1/ext/unf_ext/unf.cc
/Users/martin.trepanier/.rbenv/versions/3.4.1/lib/ruby/gems/3.4.0/gems/unf_ext-0.0.9.1/ext/unf_ext/unf/normalizer.hh
/Users/martin.trepanier/.rbenv/versions/3.4.1/lib/ruby/gems/3.4.0/gems/unf_ext-0.0.9.1/ext/unf_ext/unf/table.hh
/Users/martin.trepanier/.rbenv/versions/3.4.1/lib/ruby/gems/3.4.0/gems/unf_ext-0.0.9.1/ext/unf_ext/unf/trie/char_stream.hh
/Users/martin.trepanier/.rbenv/versions/3.4.1/lib/ruby/gems/3.4.0/gems/unf_ext-0.0.9.1/ext/unf_ext/unf/trie/node.hh
/Users/martin.trepanier/.rbenv/versions/3.4.1/lib/ruby/gems/3.4.0/gems/unf_ext-0.0.9.1/ext/unf_ext/unf/trie/searcher.hh
/Users/martin.trepanier/.rbenv/versions/3.4.1/lib/ruby/gems/3.4.0/gems/unf_ext-0.0.9.1/ext/unf_ext/unf/util.hh
/Users/martin.trepanier/.rbenv/versions/3.4.1/lib/ruby/gems/3.4.0/gems/unf_ext-0.0.9.1/lib/unf_ext.rb
/Users/martin.trepanier/.rbenv/versions/3.4.1/lib/ruby/gems/3.4.0/gems/unf_ext-0.0.9.1/lib/unf_ext/version.rb
/Users/martin.trepanier/.rbenv/versions/3.4.1/lib/ruby/gems/3.4.0/gems/unf_ext-0.0.9.1/test/helper.rb
/Users/martin.trepanier/.rbenv/versions/3.4.1/lib/ruby/gems/3.4.0/gems/unf_ext-0.0.9.1/test/normalization-test.txt
/Users/martin.trepanier/.rbenv/versions/3.4.1/lib/ruby/gems/3.4.0/gems/unf_ext-0.0.9.1/test/test_unf_ext.rb
/Users/martin.trepanier/.rbenv/versions/3.4.1/lib/ruby/gems/3.4.0/gems/unf_ext-0.0.9.1/unf_ext.gemspec
Building native extensions. This could take a while...
current directory: /Users/martin.trepanier/.rbenv/versions/3.4.1/lib/ruby/gems/3.4.0/gems/unf_ext-0.0.9.1/ext/unf_ext
["/Users/martin.trepanier/.rbenv/versions/3.4.1/bin/ruby", "extconf.rb"]
checking for -lstdc++... yes
creating Makefile
current directory: /Users/martin.trepanier/.rbenv/versions/3.4.1/lib/ruby/gems/3.4.0/gems/unf_ext-0.0.9.1/ext/unf_ext
["make", "DESTDIR=", "sitearchdir=./.gem.20250107-29331-7wdqt1", "sitelibdir=./.gem.20250107-29331-7wdqt1", "clean"]
current directory: /Users/martin.trepanier/.rbenv/versions/3.4.1/lib/ruby/gems/3.4.0/gems/unf_ext-0.0.9.1/ext/unf_ext
["make", "DESTDIR=", "sitearchdir=./.gem.20250107-29331-7wdqt1", "sitelibdir=./.gem.20250107-29331-7wdqt1"]
compiling unf.cc
make: *** [unf.o] Error 1
ERROR:  Error installing unf_ext:
	ERROR: Failed to build gem native extension.

    current directory: /Users/martin.trepanier/.rbenv/versions/3.4.1/lib/ruby/gems/3.4.0/gems/unf_ext-0.0.9.1/ext/unf_ext
/Users/martin.trepanier/.rbenv/versions/3.4.1/bin/ruby extconf.rb
current directory: /Users/martin.trepanier/.rbenv/versions/3.4.1/lib/ruby/gems/3.4.0/gems/unf_ext-0.0.9.1/ext/unf_ext
make DESTDIR\= sitearchdir\=./.gem.20250107-29331-7wdqt1 sitelibdir\=./.gem.20250107-29331-7wdqt1 clean
current directory: /Users/martin.trepanier/.rbenv/versions/3.4.1/lib/ruby/gems/3.4.0/gems/unf_ext-0.0.9.1/ext/unf_ext
make DESTDIR\= sitearchdir\=./.gem.20250107-29331-7wdqt1 sitelibdir\=./.gem.20250107-29331-7wdqt1
Building has failed. See above output for more information on the failure.
make failed, exit code 2

Gem files will remain installed in /Users/martin.trepanier/.rbenv/versions/3.4.1/lib/ruby/gems/3.4.0/gems/unf_ext-0.0.9.1 for inspection.
Results logged to /Users/martin.trepanier/.rbenv/versions/3.4.1/lib/ruby/gems/3.4.0/extensions/arm64-darwin-24/3.4.0/unf_ext-0.0.9.1/gem_make.out

If I look at the mkmf.log file for the gem in .rbenv folder, this is what I have

have_library: checking for -lstdc++... -------------------- yes

DYLD_LIBRARY_PATH=.:/Users/martin.trepanier/.rbenv/versions/3.4.1/lib ASAN_OPTIONS=detect_leaks=0 "clang -o conftest -I/Users/martin.trepanier/.rbenv/versions/3.4.1/include/ruby-3.4.0/arm64-darwin24 -I/Users/martin.trepanier/.rbenv/versions/3.4.1/include/ruby-3.4.0/ruby/backward -I/Users/martin.trepanier/.rbenv/versions/3.4.1/include/ruby-3.4.0 -I. -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -D_DARWIN_UNLIMITED_SELECT -D_REENTRANT   -fstack-protector-strong -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fdeclspec  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wextra-tokens -Wdeprecated-declarations -Wdivision-by-zero -Wdiv-by-zero -Wimplicit-function-declaration -Wimplicit-int -Wpointer-arith -Wshorten-64-to-32 -Wwrite-strings -Wold-style-definition -Wmissing-noreturn -Wno-cast-function-type -Wno-constant-logical-operand -Wno-long-long -Wno-missing-field-initializers -Wno-overlength-strings -Wno-parentheses-equality -Wno-self-assign -Wno-tautological-compare -Wno-unused-parameter -Wno-unused-value -Wunused-variable -Wmisleading-indentation -Wundef -fno-common -pipe conftest.c -L. -L/Users/martin.trepanier/.rbenv/versions/3.4.1/lib -L. -fstack-protector-strong -L/opt/homebrew/Cellar/gmp/6.3.0/lib  -arch arm64   -lruby.3.4  -lpthread  "
checked program was:
/* begin */
1: #include "ruby.h"
2:
3: int main(int argc, char **argv)
4: {
5:   return !!argv[argc];
6: }
/* end */

DYLD_LIBRARY_PATH=.:/Users/martin.trepanier/.rbenv/versions/3.4.1/lib ASAN_OPTIONS=detect_leaks=0 "clang -o conftest -I/Users/martin.trepanier/.rbenv/versions/3.4.1/include/ruby-3.4.0/arm64-darwin24 -I/Users/martin.trepanier/.rbenv/versions/3.4.1/include/ruby-3.4.0/ruby/backward -I/Users/martin.trepanier/.rbenv/versions/3.4.1/include/ruby-3.4.0 -I. -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -D_DARWIN_UNLIMITED_SELECT -D_REENTRANT   -fstack-protector-strong -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fdeclspec  -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wextra-tokens -Wdeprecated-declarations -Wdivision-by-zero -Wdiv-by-zero -Wimplicit-function-declaration -Wimplicit-int -Wpointer-arith -Wshorten-64-to-32 -Wwrite-strings -Wold-style-definition -Wmissing-noreturn -Wno-cast-function-type -Wno-constant-logical-operand -Wno-long-long -Wno-missing-field-initializers -Wno-overlength-strings -Wno-parentheses-equality -Wno-self-assign -Wno-tautological-compare -Wno-unused-parameter -Wno-unused-value -Wunused-variable -Wmisleading-indentation -Wundef -fno-common -pipe conftest.c -L. -L/Users/martin.trepanier/.rbenv/versions/3.4.1/lib -L. -fstack-protector-strong -L/opt/homebrew/Cellar/gmp/6.3.0/lib  -arch arm64   -lruby.3.4 -lstdc++  -lpthread  "
checked program was:
/* begin */
 1: #include "ruby.h"
 2:
 3: /*top*/
 4: extern int t(void);
 5: int main(int argc, char **argv)
 6: {
 7:   if (argc > 1000000) {
 8:     int (* volatile tp)(void)=(int (*)(void))&t;
 9:     printf("%d", (*tp)());
10:   }
11:
12:   return !!argv[argc];
13: }
14:
15: int t(void) { ; return 0; }
/* end */

--------------------

Any idea?

[earthctzn]

@mtrepanier I had the same issue and couldn't run my Rails apps. Removing and reinstalling Command Line Tools fixed the problem. It is related to GCC.
Running these commands on console fixed the issue for me.

sudo rm -rf /Library/Developer/CommandLineTools
then
xcode-select --install

Hope this helps you too!

[n5ken]

@mtrepanier I had the same issue and couldn't run my Rails apps. Removing and reinstalling Command Line Tools fixed the problem. It is related to GCC. Running these commands on console fixed the issue for me.

sudo rm -rf /Library/Developer/CommandLineTools then xcode-select --install

Hope this helps you too!

Doesn't work on Sequoia 15.3.x :(

[ritajie]

The problems we encountered are similar but not exactly the same. You can try mine:

Solution

sudo xcode-select --switch /Applications/Xcode.app/Contents/Developer

Initial error log

Click to expand

$ gem install unf_ext
Fetching unf_ext-0.0.9.1.gem
Building native extensions. This could take a while...
ERROR:  Error installing unf_ext:
	ERROR: Failed to build gem native extension.

    current directory: /Users/deer/.asdf/installs/ruby/3.3.7/lib/ruby/gems/3.3.0/gems/unf_ext-0.0.9.1/ext/unf_ext
/Users/deer/.asdf/installs/ruby/3.3.7/bin/ruby extconf.rb
checking for -lstdc++... yes
creating Makefile

current directory: /Users/deer/.asdf/installs/ruby/3.3.7/lib/ruby/gems/3.3.0/gems/unf_ext-0.0.9.1/ext/unf_ext
make DESTDIR\= sitearchdir\=./.gem.20250331-97589-wp8owf sitelibdir\=./.gem.20250331-97589-wp8owf clean

current directory: /Users/deer/.asdf/installs/ruby/3.3.7/lib/ruby/gems/3.3.0/gems/unf_ext-0.0.9.1/ext/unf_ext
make DESTDIR\= sitearchdir\=./.gem.20250331-97589-wp8owf sitelibdir\=./.gem.20250331-97589-wp8owf
compiling unf.cc
In file included from unf.cc:1:
./unf/normalizer.hh:4:10: fatal error: 'vector' file not found
    4 | #include <vector>
      |          ^~~~~~~~
1 error generated.
make: *** [unf.o] Error 1

make failed, exit code 2

Gem files will remain installed in /Users/deer/.asdf/installs/ruby/3.3.7/lib/ruby/gems/3.3.0/gems/unf_ext-0.0.9.1 for inspection.
Results logged to /Users/deer/.asdf/installs/ruby/3.3.7/lib/ruby/gems/3.3.0/extensions/arm64-darwin-21/3.3.0/unf_ext-0.0.9.1/gem_make.out

[rmahmad]

sudo xcode-select --switch /Applications/Xcode.app/Contents/Developer

This didn't work for me on Sequoia 15.3.2

@mtrepanier curious if you were able to find a solution to this?

[szeryf]

I had a similar problem as @ritajie #82 (comment)

./unf/normalizer.hh:4:10: fatal error: 'vector' file not found
    4 | #include <vector>
      |          ^~~~~~~~

None of the above solutions worked, but I accidentally found a workaround (sort of). The build fails on Ruby 3.2 and 3.3 but somehow works on Ruby 3.1.0. I'm on Mac OS Sequoia 15.5.

EDIT: it might have used gem versions that I already had installed some time ago. Getting the same error when trying to bundle install from scratch :(