[ruby-core:53502] [ruby-trunk - Bug #8115][Open] make install DESTDIR=/my/install/path fails

Issue #8115 has been reported by vo.x (Vit Ondruch).

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Bug #8115: make install DESTDIR=/my/install/path fails
https://bugs.ruby-lang.org/issues/8115

Author: vo.x (Vit Ondruch)
Status: Open
Priority: Normal
Assignee: nobu (Nobuyoshi Nakada)
Category: build
Target version: 
ruby -v: ruby 2.0.0p57 (2013-03-12 revision 39728) [x86_64-linux]


=begin
In Fedora packaging, we used to use (({make install DESTDIR=/my/install/path})) to install compiled extension into the folder, which RPM used to pick up the extension. However, since Ruby 2.0.0, this approach fails with message such as;

 make install DESTDIR=/builddir/build/BUILDROOT/ruby-mysql-2.8.2-9.fc20.i386
 make: *** No rule to make target `/builddir/build/BUILDROOT/ruby-mysql-2.8.2-9.fc20.i386/usr/include/ruby.h', needed by `mysql.o'.  Stop. 
 
Apparently, the mkmf creates Makefile, where everything depends on DESTDIR (see the diff of makefiles here [1]). This is wrong IMO, since obviously Ruby's header files location has nothing to do with location I'd like to install my libraries.

Could you fix this issue? Or if that was always wrong approach, could you provide us better one?

Please note that this was originally reported here: https://bugzilla.redhat.com/show_bug.cgi?id=921650

[1] https://gist.github.com/voxik/5186924
=end



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