Backport #2531: Ruby 1.8.7-p248 fails to cross-compile same version

• Status: Closed
• Assignee: shyouhei (Shyouhei Urabe)

[luislavena (Luis Lavena)]

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Hello,

I was informed before in #2485 (backport) that same version and patchlevel is required to perform a cross-compilation targeting MinGW.

Using latest 1.8.7 as base, tried to cross-compile same patchlevel version, but it failed due missing ruby.h file:

 compiling dl
 make[1]: Entering directory `/home/luis/.rake-compiler/builds/ruby-1.8.7-p248/ext/dl'
 Generating callback.func
 mkmf.rb can't find header files for ruby at /home/luis/.rvm/ruby-1.8.7-p248/lib/ruby/ruby.h
 make[1]: *** [callback.func] Error 1
 make[1]: Leaving directory `/home/luis/.rake-compiler/builds/ruby-1.8.7-p248/ext/dl'
 make: *** [all] Error 1
 

From what I see, seems mkmf is expecting the headers files in the wrong directory, as it needs to append the version (1.8) and the platform (i686-linux) to properly find them.

Find attached the config.status, config.log and rbconfig.rb generated.

My interest in the success of the cross compilation process is associated with rake-compiler project to allow Linux/OSX developers build and ship functional gems and projects for Windows users.

Thank you.
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[luislavena (Luis Lavena)]

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A small correction that I just noticed.

Shouldn't the extension compilation process (mkmf) use the generated headers for the cross target instead of the system ones?

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[luislavena (Luis Lavena)]

• File Makefile Makefile added
• File mkmf.log mkmf.log added

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Additional information.

1.8.7-p249 fails when compiling DL

Please find attached the mkmf.log and the generated Makefile of DL extconf.
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[nobu (Nobuyoshi Nakada)]

• Status changed from Open to Assigned
• Assignee set to shyouhei (Shyouhei Urabe)

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r26205
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[shyouhei (Shyouhei Urabe)]

• Assignee changed from shyouhei (Shyouhei Urabe) to nobu (Nobuyoshi Nakada)

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Can't merge that rev's too big. Can you elaborate nobu? Please break down a bit.
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[luislavena (Luis Lavena)]

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1.8.7-p299 still fails to cross-compile:

compiling dl
make[1]: Entering directory /home/luis/.rake-compiler/builds/ruby-1.8.7-p299/ext/dl' Generating callback.func mkmf.rb can't find header files for ruby at /home/luis/.rvm/rubies/ruby-1.8.7-p299/lib/ruby/ruby.h make[1]: *** [callback.func] Error 1 make[1]: Leaving directory /home/luis/.rake-compiler/builds/ruby-1.8.7-p299/ext/dl'
make: *** [all] Error 1

Without 1.8.7, developers releasing gems for Windows users using Linux or OSX are stuck at 1.8.6

I've collected a list of versions and patchlevels that works (or not) here:

http://blog.mmediasys.com/2009/12/16/rake-compiler-safe-list-of-ruby-versions-that-can-be-cross-compiled/

Still I cannot include 1.8.7 in it and cannot encourage Windows users to use 1.8.7 since most of the gems are cross compiled against 1.8.6.

I'm aware that 1.8.6 and 1.8.7 are binary and API compatible, but sometimes reality differs from theory.

Thank you.

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[luislavena (Luis Lavena)]

• File 0002-Fix-2531-by-backporting-changes-to-fake.rb-required-.patch 0002-Fix-2531-by-backporting-changes-to-fake.rb-required-.patch added

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Hello,

Since r26205 is too big to backport, I decided to recreate fake.rb using the template/fake.rb.in found in trunk. Find attached the proposed patch.

This change indeed solved the dl cross-compilation issue I was having.

Please consider it for inclusion.

Thank you.

=end

[luislavena (Luis Lavena)]

• File 0004-Remove-RUBY_DESCRIPTION-from-fake.rb.in-is-not-expos.patch 0004-Remove-RUBY_DESCRIPTION-from-fake.rb.in-is-not-expos.patch added

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Hello,

Find attached a second patch that corrects the undefined RUBY_DESCRIPTION and the RUBY_VERSION definition using MAJOR MINOR and TEENY.

It was an overlook from my part. Apologies.

Please let me know if prefer a unified patch of both changes.

Thank you,

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[drbrain (Eric Hodel)]

• Status changed from Assigned to Closed

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=end

[naruse (Yui NARUSE)]

• Status changed from Closed to Assigned
• Assignee changed from nobu (Nobuyoshi Nakada) to shyouhei (Shyouhei Urabe)

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=end

[shyouhei (Shyouhei Urabe)]

• Status changed from Assigned to Closed
• % Done changed from 0 to 100

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This issue was solved with changeset r29866.
Luis, thank you for reporting this issue.
Your contribution to Ruby is greatly appreciated.
May Ruby be with you.

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