Install ruby-1.8.7 with rbenv on macOS Catalina (10.15)

rbenv-ruby187-macos.sh

#!/bin/sh

# 1) Install Xcode 11
# 2) Install command line tools: `xcode-select --install`
# 3) Install HomeBrew
# 4) brew tap cartr/qt4 && brew install cartr/qt4/openssl@1.0 subversion rbenv
# 5) Setup rbenv
# 6) Run this command

PKG_CONFIG_PATH="$(brew --prefix cartr/qt4/openssl@1.0)/lib/pkgconfig" \
CFLAGS="-O2 -fno-tree-dce -fno-optimize-sibling-calls -I$(brew --prefix cartr/qt4/openssl@1.0)/include" \
LDFLAGS="-L$(brew --prefix cartr/qt4/openssl@1.0)/lib" \
rbenv install 1.8.7-p375

# If your macOS is older than 10.15, see the history of this gist.

Thank you so much for posting this, it has saved my life!!

Thanks!

Thank you for sharing this snippet 👍

If you use chruby you can also install the old ruby 1.8.7 with ruby-build with the commands provided by @yatsu:

CC=gcc-6 CFLAGS="-O2 -fno-tree-dce -fno-optimize-sibling-calls -I$(brew --prefix openssl)/include" LDFLAGS="-L$(brew --prefix openssl)/lib" ruby-build 1.8.7-p375 ~/.rubies/ruby-1.8.7

Thank you 🙇
I used it to RVM and work fine

masOS Catalina 10.15.4 (19E266)

brew tap cartr/qt4 && brew install cartr/qt4/openssl@1.0
brew --prefix cartr/qt4/openssl@1.0 
>>> /usr/local/opt/openssl@1.0

rvm install 1.8.7-head --with-openssl-dir="/usr/local/opt/openssl@1.0"
 

Thanks a lot for sharing this! Copied from rodrigoarino's comment and had the smoothest installation in a very long time. Highly appreciated!

I have this error when running on MacOC Catalina 10.15.4

eval.c:7288:2: error: implicit declaration of function 'rb_thread_join' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
        rb_thread_join(owner->thread, -1.0);
        ^
eval.c:7288:2: note: did you mean 'rb_thread_main'?
./intern.h:236:7: note: 'rb_thread_main' declared here
VALUE rb_thread_main _((void));
      ^

I have this error when running on MacOC Catalina 10.15.4

eval.c:7288:2: error: implicit declaration of function 'rb_thread_join' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
        rb_thread_join(owner->thread, -1.0);
        ^
eval.c:7288:2: note: did you mean 'rb_thread_main'?
./intern.h:236:7: note: 'rb_thread_main' declared here
VALUE rb_thread_main _((void));
      ^

Using gcc-6 or other versions may help.
See old version of this script in Revisions page.

(I don't have Catalina now.)

I have this error when running on MacOC Catalina 10.15.4

eval.c:7288:2: error: implicit declaration of function 'rb_thread_join' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
        rb_thread_join(owner->thread, -1.0);
        ^
eval.c:7288:2: note: did you mean 'rb_thread_main'?
./intern.h:236:7: note: 'rb_thread_main' declared here
VALUE rb_thread_main _((void));
      ^

Adding -Wno-error=implicit-function-declaration to CFLAGS has helped me (MacOS Monterey 12.3.1).