ERROR: Failed to build gem native extension.

[eatspaint]

I'm trying to spin up an old project using ruby 1.8.7-p375 and cannot successfully bundle because eventmachine fails to install.

Here are some of the commands I've tried:

• env ARCHFLAGS=-Wno-error=unused-command-line-argument-hard-error-in-future gem install eventmachine -v '1.2.0.1'
• gem install eventmachine -v 1.2.0.1 -- --with-cppflags=-I/usr/local/opt/openssl/include

Here's my output:

/Users/christianfuller/.rbenv/versions/1.8.7-p375/bin/ruby extconf.rb --with-cppflags=-I/usr/local/opt/openssl/include
checking for main() in -lcrypto... yes
checking for main() in -lssl... yes
checking for openssl/ssl.h... yes
checking for openssl/err.h... yes
checking for rb_trap_immediate in ruby.h,rubysig.h... yes
checking for rb_thread_blocking_region()... no
checking for rb_thread_call_without_gvl() in ruby/thread.h... no
checking for rb_thread_fd_select()... no
checking for rb_fdset_t in ruby/intern.h... no
checking for rb_wait_for_single_fd()... no
checking for rb_enable_interrupt()... no
checking for rb_time_new()... yes
checking for inotify_init() in sys/inotify.h... no
checking for __NR_inotify_init in sys/syscall.h... no
checking for writev() in sys/uio.h... yes
checking for pipe2() in unistd.h... no
checking for accept4() in sys/socket.h... no
checking for SOCK_CLOEXEC in sys/socket.h... no
checking for sys/event.h... yes
checking for sys/queue.h... yes
checking for clock_gettime()... no
checking for gethrtime()... no
CXXFLAGS=
creating Makefile

make
c++ -I. -I. -I/Users/christianfuller/.rbenv/versions/1.8.7-p375/lib/ruby/1.8/i686-darwin15.4.0 -I. -DHAVE_OPENSSL_SSL_H -DHAVE_OPENSSL_ERR_H -DWITH_SSL -DBUILD_FOR_RUBY -DHAVE_RB_TRAP_IMMEDIATE -DHAVE_RB_TIME_NEW -DHAVE_WRITEV -DOS_UNIX -DHAVE_SYS_EVENT_H -DHAVE_SYS_QUEUE_H -DHAVE_KQUEUE -DOS_DARWIN -I/usr/local/opt/openssl/include -fno-common -g -02 -O3 -Wno-error=shorten-64-to-32  -pipe -fno-common     -c binder.cpp
clang: error: unknown argument: '-02'
make: *** [binder.o] Error 1

From what I've read, there was a temporary workaround, but that seems to no longer be working. Any ideas?

[sodabrew]

Somehow your Ruby mkmf has "dash zero two" in the CFLAGS, which doesn't make sense to me.

[eatspaint]

I'm not totally familiar with that part of ruby yet. How should I go about correcting that?

[sodabrew]

Unfortunately I don't know how that got there either!
Note the -02 right before the -O3, the former looks like a typo.

c++ -I. -I. -I/Users/christianfuller/.rbenv/versions/1.8.7-p375/lib/ruby/1.8/i686-darwin15.4.0 -I. -DHAVE_OPENSSL_SSL_H -DHAVE_OPENSSL_ERR_H -DWITH_SSL -DBUILD_FOR_RUBY -DHAVE_RB_TRAP_IMMEDIATE -DHAVE_RB_TIME_NEW -DHAVE_WRITEV -DOS_UNIX -DHAVE_SYS_EVENT_H -DHAVE_SYS_QUEUE_H -DHAVE_KQUEUE -DOS_DARWIN -I/usr/local/opt/openssl/include -fno-common -g -02 -O3 -Wno-error=shorten-64-to-32  -pipe -fno-common     -c binder.cpp

[sodabrew]

@eatspaint Is this still an open issue for you?

[eatspaint]

No! Apologies for not marking as closed sooner!