Issue #10796 has been updated by Jon Forums.


Due to the same undefined reference link errors, 1.2.6 causes gem install failures in 32bit versions of 2.0.0p617 and 2.1.5p285 on my win8.1 x64 system.

Bigdecimal 1.2.6 installs fine in 64bit 2.1.5p277 on my ubuntu server 14.10 x64 vm.

----------------------------------------
Bug #10796: bigdecimal gem update error
https://bugs.ruby-lang.org/issues/10796#change-51275

* Author: Emanuel D
* Status: Open
* Priority: Normal
* Assignee: 
* ruby -v: ruby 2.1.5p273 (2014-11-13 revision 48405) [x64-mingw32]
* Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN, 2.2: UNKNOWN
----------------------------------------
```winbatch
C:\Zend\Apache2\htdocs\u3c>gem update
Updating installed gems
Updating bigdecimal
Building native extensions.  This could take a while...
ERROR:  Error installing bigdecimal:
        ERROR: Failed to build gem native extension.

    C:/Ruby21-x64/bin/ruby.exe -r ./siteconf20150128-10504-1w9xw9b.rb extconf.rb
checking for labs() in stdlib.h... yes
checking for llabs() in stdlib.h... yes
creating Makefile

make "DESTDIR=" clean

make "DESTDIR="
generating bigdecimal-x64-mingw32.def
compiling bigdecimal.c
bigdecimal.c: In function 'GetVpValueWithPrec':
bigdecimal.c:238:6: warning: implicit declaration of function 'rb_rational_num' [-Wimplicit-function-declaration]
bigdecimal.c:242:6: warning: implicit declaration of function 'rb_rational_den' [-Wimplicit-function-declaration]
linking shared-object bigdecimal.so
bigdecimal.o: In function `is_zero':
C:\Ruby21-x64\lib\ruby\gems\2.1.0\gems\bigdecimal-1.2.6/bigdecimal.c:2126: undefined reference to `rb_rational_num'
bigdecimal.o: In function `is_one':
C:\Ruby21-x64\lib\ruby\gems\2.1.0\gems\bigdecimal-1.2.6/bigdecimal.c:2149: undefined reference to `rb_rational_num'
C:\Ruby21-x64\lib\ruby\gems\2.1.0\gems\bigdecimal-1.2.6/bigdecimal.c:2150: undefined reference to `rb_rational_den'
bigdecimal.o: In function `GetVpValueWithPrec':
C:\Ruby21-x64\lib\ruby\gems\2.1.0\gems\bigdecimal-1.2.6/bigdecimal.c:238: undefined reference to `rb_rational_num'
C:\Ruby21-x64\lib\ruby\gems\2.1.0\gems\bigdecimal-1.2.6/bigdecimal.c:242: undefined reference to `rb_rational_den'
bigdecimal.o: In function `BigMath_s_log':
C:\Ruby21-x64\lib\ruby\gems\2.1.0\gems\bigdecimal-1.2.6/bigdecimal.c:2924: undefined reference to `rb_rational_num'
C:\Ruby21-x64\lib\ruby\gems\2.1.0\gems\bigdecimal-1.2.6/bigdecimal.c:2924: undefined reference to `rb_rational_num'
bigdecimal.o: In function `BigDecimal_power':
C:\Ruby21-x64\lib\ruby\gems\2.1.0\gems\bigdecimal-1.2.6/bigdecimal.c:2256: undefined reference to `rb_rational_num'
C:\Ruby21-x64\lib\ruby\gems\2.1.0\gems\bigdecimal-1.2.6/bigdecimal.c:2262: undefined reference to `rb_rational_den'
C:\Ruby21-x64\lib\ruby\gems\2.1.0\gems\bigdecimal-1.2.6/bigdecimal.c:2263: undefined reference to `rb_rational_num'
bigdecimal.o: In function `is_zero':
C:\Ruby21-x64\lib\ruby\gems\2.1.0\gems\bigdecimal-1.2.6/bigdecimal.c:2126: undefined reference to `rb_rational_num'
collect2.exe: error: ld returned 1 exit status
make: *** [bigdecimal.so] Error 1

make failed, exit code 2

Gem files will remain installed in C:/Ruby21-x64/lib/ruby/gems/2.1.0/gems/bigdecimal-1.2.6 for inspection.
Results logged to C:/Ruby21-x64/lib/ruby/gems/2.1.0/extensions/x64-mingw32/2.1.0/bigdecimal-1.2.6/gem_make.out
Updating psych
Fetching: psych-2.0.12.gem (100%)
Building native extensions.  This could take a while...
Successfully installed psych-2.0.12
Parsing documentation for psych-2.0.12
Installing ri documentation for psych-2.0.12
Installing darkfish documentation for psych-2.0.12
Done installing documentation for psych after 2 seconds
Parsing documentation for psych-2.0.12
Done installing documentation for psych after 1 seconds
Gems updated: bigdecimal psych

C:\Zend\Apache2\htdocs\u3c>gem env
RubyGems Environment:
  - RUBYGEMS VERSION: 2.4.5
  - RUBY VERSION: 2.1.5 (2014-11-13 patchlevel 273) [x64-mingw32]
  - INSTALLATION DIRECTORY: C:/Ruby21-x64/lib/ruby/gems/2.1.0
  - RUBY EXECUTABLE: C:/Ruby21-x64/bin/ruby.exe
  - EXECUTABLE DIRECTORY: C:/Ruby21-x64/bin
  - SPEC CACHE DIRECTORY: C:/Users/Emanuel/.gem/specs
  - SYSTEM CONFIGURATION DIRECTORY: C:/ProgramData
  - RUBYGEMS PLATFORMS:
    - ruby
    - x64-mingw32
  - GEM PATHS:
     - C:/Ruby21-x64/lib/ruby/gems/2.1.0
     - C:/Users/Emanuel/.gem/ruby/2.1.0
  - GEM CONFIGURATION:
     - :update_sources => true
     - :verbose => true
     - :backtrace => false
     - :bulk_threshold => 1000
  - REMOTE SOURCES:
     - https://rubygems.org/
  - SHELL PATH:
     - c:\DevKit\bin
     - c:\DevKit\mingw\bin
     - C:\Program Files\ConEmu\ConEmu
     - C:\Program Files\ConEmu
     - C:\ProgramData\Oracle\Java\javapath
     - C:\Program Files (x86)\NVIDIA Corporation\PhysX\Common
     - C:\Windows\system32
     - C:\Windows
     - C:\Windows\System32\Wbem
     - C:\Windows\System32\WindowsPowerShell\v1.0\
     - C:\Program Files (x86)\MySQL\MySQL Utilities\
     - C:\Program Files (x86)\MySQL\MySQL Utilities\Doctrine extensions for PHP\
     - C:\Windows\System32\WindowsPowerShell\v1.0\
     - C:\Zend\ZendServer\share\ZendFramework\bin
     - C:\Zend\ZendServer\bin
     - C:\Program Files\TortoiseHg\
     - C:\ProgramData\ComposerSetup\bin
     - C:\Program Files (x86)\Git\cmd
     - C:\nodejs\
     - C:\Ruby21-x64\bin
     - C:\ProgramData\chocolatey\bin
     - C:\Users\Emanuel\AppData\Roaming\npm

C:\Zend\Apache2\htdocs\u3c>
```

I also opened this: https://github.com/rubygems/rubygems/issues/1155
but I was told to come here.



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