impossible to install on ruby 2.2.9

[MathieuDerelle]

What's the problem ?
Which API is missing ?

$ gem install stackprof -v '0.2.15'
Building native extensions. This could take a while...
ERROR:  Error installing stackprof:
	ERROR: Failed to build gem native extension.

    current directory: /Users/mathieu/.rvm/gems/ruby-2.2.9/gems/stackprof-0.2.15/ext/stackprof
/Users/mathieu/.rvm/rubies/ruby-2.2.9/bin/ruby -I /Users/mathieu/.rvm/rubies/ruby-2.2.9/lib/ruby/site_ruby/2.2.0 -r ./siteconf20200915-36469-1mz31om.rb extconf.rb
checking for rb_postponed_job_register_one()... no
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of necessary
libraries and/or headers.  Check the mkmf.log file for more details.  You may
need configuration options.

Provided configuration options:
	--with-opt-dir
	--with-opt-include
	--without-opt-include=${opt-dir}/include
	--with-opt-lib
	--without-opt-lib=${opt-dir}/lib
	--with-make-prog
	--without-make-prog
	--srcdir=.
	--curdir
	--ruby=/Users/mathieu/.rvm/rubies/ruby-2.2.9/bin/$(RUBY_BASE_NAME)
extconf.rb:8:in `<main>': missing API: are you using ruby 2.1+? (RuntimeError)

To see why this extension failed to compile, please check the mkmf.log which can be found here:

  /Users/mathieu/.rvm/gems/ruby-2.2.9/extensions/x86_64-darwin-16/2.2.0/stackprof-0.2.15/mkmf.log

extconf failed, exit code 1

Gem files will remain installed in /Users/mathieu/.rvm/gems/ruby-2.2.9/gems/stackprof-0.2.15 for inspection.
Results logged to /Users/mathieu/.rvm/gems/ruby-2.2.9/extensions/x86_64-darwin-16/2.2.0/stackprof-0.2.15/gem_make.out

mkmf.log :

have_func: checking for rb_postponed_job_register_one()... -------------------- no

"gcc -o conftest -I/Users/mathieu/.rvm/rubies/ruby-2.2.9/include/ruby-2.2.0/x86_64-darwin16 -I/Users/mathieu/.rvm/rubies/ruby-2.2.9/include/ruby-2.2.0/ruby/backward -I/Users/mathieu/.rvm/rubies/ruby-2.2.9/include/ruby-2.2.0 -I.  -I/usr/local/opt/libyaml/include -I/usr/local/opt/libksba/include -I/usr/local/opt/readline/include -I/usr/local/opt/zlib/include -I/usr/local/opt/openssl@1.1/include -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -D_DARWIN_UNLIMITED_SELECT -D_REENTRANT    -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wshorten-64-to-32 -Wimplicit-function-declaration -Wdivision-by-zero -Wdeprecated-declarations -Wextra-tokens  -fno-common -pipe conftest.c  -L/usr/local/opt/libyaml/lib -L/usr/local/opt/libksba/lib -L/usr/local/opt/readline/lib -L/usr/local/opt/zlib/lib -L/usr/local/opt/openssl@1.1/lib -L. -L/Users/mathieu/.rvm/rubies/ruby-2.2.9/lib -L. -fstack-protector -L/usr/local/lib -L/usr/local/opt/libyaml/lib -L/usr/local/opt/libksba/lib -L/usr/local/opt/readline/lib -L/usr/local/opt/zlib/lib -L/usr/local/opt/openssl@1.1/lib      -lruby.2.2.0  -lpthread -lgmp -ldl -lobjc "
checked program was:
/* begin */
1: #include "ruby.h"
2: 
3: int main(int argc, char **argv)
4: {
5:   return 0;
6: }
/* end */

"gcc -o conftest -I/Users/mathieu/.rvm/rubies/ruby-2.2.9/include/ruby-2.2.0/x86_64-darwin16 -I/Users/mathieu/.rvm/rubies/ruby-2.2.9/include/ruby-2.2.0/ruby/backward -I/Users/mathieu/.rvm/rubies/ruby-2.2.9/include/ruby-2.2.0 -I.  -I/usr/local/opt/libyaml/include -I/usr/local/opt/libksba/include -I/usr/local/opt/readline/include -I/usr/local/opt/zlib/include -I/usr/local/opt/openssl@1.1/include -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -D_DARWIN_UNLIMITED_SELECT -D_REENTRANT    -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wshorten-64-to-32 -Wimplicit-function-declaration -Wdivision-by-zero -Wdeprecated-declarations -Wextra-tokens  -fno-common -pipe conftest.c  -L/usr/local/opt/libyaml/lib -L/usr/local/opt/libksba/lib -L/usr/local/opt/readline/lib -L/usr/local/opt/zlib/lib -L/usr/local/opt/openssl@1.1/lib -L. -L/Users/mathieu/.rvm/rubies/ruby-2.2.9/lib -L. -fstack-protector -L/usr/local/lib -L/usr/local/opt/libyaml/lib -L/usr/local/opt/libksba/lib -L/usr/local/opt/readline/lib -L/usr/local/opt/zlib/lib -L/usr/local/opt/openssl@1.1/lib      -lruby.2.2.0  -lpthread -lgmp -ldl -lobjc "
conftest.c:13:57: error: use of undeclared identifier 'rb_postponed_job_register_one'
int t(void) { void ((*volatile p)()); p = (void ((*)()))rb_postponed_job_register_one; return 0; }
                                                        ^
1 error generated.
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:     printf("%p", &t);
 9:   }
10: 
11:   return 0;
12: }
13: int t(void) { void ((*volatile p)()); p = (void ((*)()))rb_postponed_job_register_one; return 0; }
/* end */

"gcc -o conftest -I/Users/mathieu/.rvm/rubies/ruby-2.2.9/include/ruby-2.2.0/x86_64-darwin16 -I/Users/mathieu/.rvm/rubies/ruby-2.2.9/include/ruby-2.2.0/ruby/backward -I/Users/mathieu/.rvm/rubies/ruby-2.2.9/include/ruby-2.2.0 -I.  -I/usr/local/opt/libyaml/include -I/usr/local/opt/libksba/include -I/usr/local/opt/readline/include -I/usr/local/opt/zlib/include -I/usr/local/opt/openssl@1.1/include -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -D_DARWIN_UNLIMITED_SELECT -D_REENTRANT    -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wshorten-64-to-32 -Wimplicit-function-declaration -Wdivision-by-zero -Wdeprecated-declarations -Wextra-tokens  -fno-common -pipe conftest.c  -L/usr/local/opt/libyaml/lib -L/usr/local/opt/libksba/lib -L/usr/local/opt/readline/lib -L/usr/local/opt/zlib/lib -L/usr/local/opt/openssl@1.1/lib -L. -L/Users/mathieu/.rvm/rubies/ruby-2.2.9/lib -L. -fstack-protector -L/usr/local/lib -L/usr/local/opt/libyaml/lib -L/usr/local/opt/libksba/lib -L/usr/local/opt/readline/lib -L/usr/local/opt/zlib/lib -L/usr/local/opt/openssl@1.1/lib      -lruby.2.2.0  -lpthread -lgmp -ldl -lobjc "
conftest.c:13:15: error: implicit declaration of function 'rb_postponed_job_register_one' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
int t(void) { rb_postponed_job_register_one(); return 0; }
              ^
1 error generated.
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:     printf("%p", &t);
 9:   }
10: 
11:   return 0;
12: }
13: int t(void) { rb_postponed_job_register_one(); return 0; }
/* end */

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

[mehagar]

Seeing the same thing trying to install from ruby 2.1.10 as well.

[NickLaMuro]

@mehagar for your case, greater than ruby 2.2 is required:

https://github.com/tmm1/stackprof#requirements

[NickLaMuro]

@MathieuDerelle Sorry for the delay in my response. I decided to try reproducing this myself, but wasn't able to, but possibly some of the difficulties I had of trying to get Ruby 2.2 installed on a newer Mac might shed some light as to what the issue on your end might be.

---

To start, I had a couple failed attempts trying to get OpenSSL to work with Ruby properly. Turns out it was something as described here:

rbenv/ruby-build#1277

However, the steps suggested later in the post didn't work with the current state of Homebrew since they have deprecated openssl@1.0, which Ruby needs:

rbenv/ruby-build#1353
https://github.com/rbenv/homebrew-tap

(Note: I currently use ruby-install, so I had to install that tap, but then run it a slightly different way then was suggested: ruby-install ruby-2.2.9 -- --with-openssl-dir=$(brew --prefix openssl@1.0))

That all said, none of this was an issue that you described, but while looking through said issues, it also seems like particular versions of clang might have issues with ruby installations:

rbenv/ruby-build#1353 (comment)

Completely guessing here, but it is possible that you installed ruby on a previous version of clang, and then upgraded and are now running into compatibility issues when trying to compile the Stackprof C extension.

Hope this helps,
-Nick

[MathieuDerelle]

Indeed, there are now problems with openssl when installing ruby < 2.4
Using rvm, the command for me was rvm install 2.2.9 --with-openssl-dir='/usr/local/opt/openssl@1.0'

I had some issues with Command Line Tools recently.
Now that its fixed, I'll try again to install this gem and come back to you.