Cannot build on Mac os x Catalina

[rollyar]

Hello cannot build the gem, on mac os catalina

Firebird-3.0.5-33220-x86_64

sw_vers
ProductName: Mac OS X
ProductVersion: 10.15.4
BuildVersion: 19E287

/usr/sbin/pkgutil --packages | grep CL
com.apple.pkg.CLTools_Executables
com.apple.pkg.CLTools_SDK_macOS1015
com.apple.pkg.CLTools_SDK_macOS1014
com.apple.pkg.CLTools_macOS_SDK

/usr/sbin/pkgutil --pkg-info com.apple.pkg.CLTools_Executables
package-id: com.apple.pkg.CLTools_Executables
version: 11.4.0.0.1.1583798712
volume: /
location: /
install-time: 1586826514
groups: com.apple.FindSystemFiles.pkg-group

I have the next error:
Building native extensions. This could take a while...
/Users/rolando/.rvm/rubies/ruby-2.6.3/lib/ruby/2.6.0/open3.rb:213: warning: Insecure world writable dir /Library/Frameworks/Firebird.framework/Resources in PATH, mode 040777
ERROR: Error installing fb:
ERROR: Failed to build gem native extension.

current directory: /Users/rolando/.rvm/gems/ruby-2.6.3/gems/fb-0.9.2

/Users/rolando/.rvm/rubies/ruby-2.6.3/bin/ruby -I /Users/rolando/.rvm/rubies/ruby-2.6.3/lib/ruby/site_ruby/2.6.0 -r ./siteconf20200414-1402-141o5gw.rb extconf.rb
checking for isc_attach_database() in -lfbclient... *** 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/rolando/.rvm/rubies/ruby-2.6.3/bin/$(RUBY_BASE_NAME)
--with-firebird-dir
--without-firebird-dir
--with-firebird-include
--without-firebird-include=${firebird-dir}/include
--with-firebird-lib
--without-firebird-lib=${firebird-dir}/lib
--with-fbclientlib
--without-fbclientlib
/Users/rolando/.rvm/rubies/ruby-2.6.3/lib/ruby/2.6.0/mkmf.rb:467:in try_do': The compiler failed to generate an executable file. (RuntimeError) You have to install development tools first. from /Users/rolando/.rvm/rubies/ruby-2.6.3/lib/ruby/2.6.0/mkmf.rb:552:in try_link0'
from /Users/rolando/.rvm/rubies/ruby-2.6.3/lib/ruby/2.6.0/mkmf.rb:570:in try_link' from /Users/rolando/.rvm/rubies/ruby-2.6.3/lib/ruby/2.6.0/mkmf.rb:782:in try_func'
from /Users/rolando/.rvm/rubies/ruby-2.6.3/lib/ruby/2.6.0/mkmf.rb:1016:in block in have_library' from /Users/rolando/.rvm/rubies/ruby-2.6.3/lib/ruby/2.6.0/mkmf.rb:959:in block in checking_for'
from /Users/rolando/.rvm/rubies/ruby-2.6.3/lib/ruby/2.6.0/mkmf.rb:361:in block (2 levels) in postpone' from /Users/rolando/.rvm/rubies/ruby-2.6.3/lib/ruby/2.6.0/mkmf.rb:331:in open'
from /Users/rolando/.rvm/rubies/ruby-2.6.3/lib/ruby/2.6.0/mkmf.rb:361:in block in postpone' from /Users/rolando/.rvm/rubies/ruby-2.6.3/lib/ruby/2.6.0/mkmf.rb:331:in open'
from /Users/rolando/.rvm/rubies/ruby-2.6.3/lib/ruby/2.6.0/mkmf.rb:357:in postpone' from /Users/rolando/.rvm/rubies/ruby-2.6.3/lib/ruby/2.6.0/mkmf.rb:958:in checking_for'
from /Users/rolando/.rvm/rubies/ruby-2.6.3/lib/ruby/2.6.0/mkmf.rb:1011:in have_library' from extconf.rb:90:in block in

'
from extconf.rb:90:in each' from extconf.rb:90:in find'
from extconf.rb:90:in `'

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

/Users/rolando/.rvm/gems/ruby-2.6.3/extensions/x86_64-darwin-19/2.6.0/fb-0.9.2/mkmf.log

extconf failed, exit code 1

Gem files will remain installed in /Users/rolando/.rvm/gems/ruby-2.6.3/gems/fb-0.9.2 for inspection.
Results logged to /Users/rolando/.rvm/gems/ruby-2.6.3/extensions/x86_64-darwin-19/2.6.0/fb-0.9.2/gem_make.out

Any help?

[rollyar]

I solved as follow:
git clone https://github.com/rowland/fb.git
cd db
nano extcont.rb
change extcont.rb to

#!/usr/bin/env ruby
require 'mkmf'

$CFLAGS += " -DOS_UNIX"
dir_config("firebird")
have_library("fbclient","isc_attach_database", "ibase.h")
create_makefile("fb")

then build and install
gem build fb.gemspec
gem install fb-0.9.2.gem

[douweh]

I have the same problem, when looking into mkmf.log it states framework not found Firebird.
However the framework is available on /Library/Frameworks/Firebird.framework.

Anyone got any clue?

[nik736]

Did anyone find a solution for this?