# Same question but different account - installing Ruby to Desktop folder as if I used "sudo apt-get install rubyX rubyX-dev"

**URL:** https://rubytalk.org/t/same-question-but-different-account-installing-ruby-to-desktop-folder-as-if-i-used-sudo-apt-get-install-rubyx-rubyx-dev/73799
**Category:** ruby-talk
**Created:** [5 September 2016 19:20 UTC](https://rubytalk.org/t/same-question-but-different-account-installing-ruby-to-desktop-folder-as-if-i-used-sudo-apt-get-install-rubyx-rubyx-dev/73799 "2016-09-05T19:20:12Z")
**Posts on this page:** 11
**Page:** 1

<div class="post-metadata">

### Author: ![steve.sbh77](https://avatars.discourse-cdn.com/v4/letter/s/ba8739/32.png) [@steve.sbh77](https://rubytalk.org/u/steve.sbh77)
#### Post date: [5 September 2016 19:20 UTC](https://rubytalk.org/t/same-question-but-different-account-installing-ruby-to-desktop-folder-as-if-i-used-sudo-apt-get-install-rubyx-rubyx-dev/73799/1 "2016-09-05T19:20:12Z")

</div>

Hello all.

I want to install ruby in a certain folder, and by using configure's  
PREFIX and EXECPREFIX, etc., keep the installation all contained in this  
folder. For instance a folder on my desktop, called Ruby, e.g.  
~/Desktop/Ruby

I tried both,

$ svn co [http://svn.ruby-lang.org/repos/ruby/trunk](http://svn.ruby-lang.org/repos/ruby/trunk) ruby

and

$ svn co [http://svn.ruby-lang.org/repos/ruby/branches/ruby\_2\_3](http://svn.ruby-lang.org/repos/ruby/branches/ruby_2_3)

but I kept running into errors about not finding header files like  
ruby.h. So it was suggested I do

apt-get install rubyX rubyX-dev

but I really want it all self-contained in the folder on my desktop,  
much like Anaconda/Python is.

So how do I install the equivalent of rubyX and rubyX-dev (via apt) in  
my Desktop folder using git or svn?

Thanks much!  
Brett

---

<div class="post-metadata">

### Author: ![Carlo\_E\_Prelz](https://avatars.discourse-cdn.com/v4/letter/c/dbc845/32.png) [@Carlo\_E\_Prelz](https://rubytalk.org/u/Carlo_E_Prelz)
#### Post date: [6 September 2016 04:41 UTC](https://rubytalk.org/t/same-question-but-different-account-installing-ruby-to-desktop-folder-as-if-i-used-sudo-apt-get-install-rubyx-rubyx-dev/73799/2 "2016-09-06T04:41:40Z")

</div>

Quoting steve.sbh77 (steve.sbh77@gmail.com):

> I tried both,
> 
> $ svn co [http://svn.ruby-lang.org/repos/ruby/trunk](http://svn.ruby-lang.org/repos/ruby/trunk) ruby
> 
> and
> 
> $ svn co [http://svn.ruby-lang.org/repos/ruby/branches/ruby\_2\_3](http://svn.ruby-lang.org/repos/ruby/branches/ruby_2_3)
> 
> but I kept running into errors about not finding header files like  
> ruby.h.

You are not specifying which errors, so it is difficult to help.

After you have obtained your source repository, what do you do? If you  
get the current, latest version, as per the first command you show,  
you can run

autoreconf -fi

to obtain the configure script. Then, if you run

./configure --help

among other interesting information, you can read:

--8\<----8\<----8\<----8\<----8\<----8\<----8\<----8\<----8\<----8\<----8\<----8\<----8\<--  
Installation directories:  
&nbsp;&nbsp;--prefix=PREFIX install architecture-independent files in PREFIX  
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[/usr/local]  
&nbsp;&nbsp;--exec-prefix=EPREFIX install architecture-dependent files in EPREFIX  
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[PREFIX]

By default, `make install' will install all the files in  
`/usr/local/bin', `/usr/local/lib' etc. You can specify  
an installation prefix other than `/usr/local' using `--prefix',  
for instance `--prefix=$HOME'.  
--8\<----8\<----8\<----8\<----8\<----8\<----8\<----8\<----8\<----8\<----8\<----8\<----8\<--

So: the way to to make an installation that resides in a non-standard  
location is clearly indicated. Then, you will have executables,  
libraries and include files installed in non-standard places, of  
course. It is part of system administration practice (I imagine you  
are under Linux) to configure things so that you can use all of those  
elements. You can succeed, but you must learn your whereabouts. It may  
look like a hurdles race.

> apt-get install rubyX rubyX-dev

There I cannot help you anymore. I stopped using debian and  
derivatives when systemd entered into that picture.

Carlo

> **···**
>
> Subject: same question but different account - installing Ruby to Desktop folder as if I used "sudo apt-get install rubyX rubyX-dev"  
> &nbsp;&nbsp;Date: lun 05 set 16 01:20:12 -0600
> 
> --  
> &nbsp;&nbsp;\* Se la Strada e la sua Virtu' non fossero state messe da parte,  
> \* K \* Carlo E. Prelz - fluido@fluido.as che bisogno ci sarebbe  
> &nbsp;&nbsp;\* di parlare tanto di amore e di rettitudine? (Chuang-Tzu)

---

<div class="post-metadata">

### Author: ![steve.sbh77](https://avatars.discourse-cdn.com/v4/letter/s/ba8739/32.png) [@steve.sbh77](https://rubytalk.org/u/steve.sbh77)
#### Post date: [6 September 2016 15:17 UTC](https://rubytalk.org/t/same-question-but-different-account-installing-ruby-to-desktop-folder-as-if-i-used-sudo-apt-get-install-rubyx-rubyx-dev/73799/3 "2016-09-06T15:17:49Z")

</div>

Thank you for your reply Carlo. I realize what I meant to ask was  
(though I guess I really didn't) if downloading from one (or either?) of  
the svn addresses would result in a full Ruby installation, such as what  
one would have if they did "sudo apt-get install ruby24 ruby24-dev".

Maybe my dilemma is more on the part of redmine but due to what I'm  
getting back on SE I thought I might have grabbed the wrong ruby.

My full question in all its horrible glory is here on SO;

> <https://stackoverflow.com/questions/39323697/ruby-h-libraryies-not-found-despite-make-check-success-when-building-redmine>

Is this clear?

Thanks all,  
Brett

[0x9E50670B.asc](https://rubytalk.org/uploads/short-url/ioaYuUBFTIlwmFDIB009deggCvM.asc) (3.05 KB)

> **···**
>
> On 09/05/2016 10:41 PM, Carlo E. Prelz wrote:
> 
> > &nbsp;&nbsp;Subject: same question but different account - installing Ruby to Desktop folder as if I used "sudo apt-get install rubyX rubyX-dev"  
> > &nbsp;&nbsp;Date: lun 05 set 16 01:20:12 -0600
> > 
> > Quoting steve.sbh77 (steve.sbh77@gmail.com):
> > 
> > > I tried both,
> > > 
> > > $ svn co [http://svn.ruby-lang.org/repos/ruby/trunk](http://svn.ruby-lang.org/repos/ruby/trunk) ruby
> > > 
> > > and
> > > 
> > > $ svn co [http://svn.ruby-lang.org/repos/ruby/branches/ruby\_2\_3](http://svn.ruby-lang.org/repos/ruby/branches/ruby_2_3)
> > > 
> > > but I kept running into errors about not finding header files like  
> > > ruby.h.
> > 
> > You are not specifying which errors, so it is difficult to help.
> > 
> > After you have obtained your source repository, what do you do? If you  
> > get the current, latest version, as per the first command you show,  
> > you can run
> > 
> > autoreconf -fi
> > 
> > to obtain the configure script. Then, if you run
> > 
> > ./configure --help
> > 
> > among other interesting information, you can read:
> > 
> > --8\<----8\<----8\<----8\<----8\<----8\<----8\<----8\<----8\<----8\<----8\<----8\<----8\<--  
> > Installation directories:  
> > &nbsp;&nbsp;--prefix=PREFIX install architecture-independent files in PREFIX  
> > &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[/usr/local]  
> > &nbsp;&nbsp;--exec-prefix=EPREFIX install architecture-dependent files in EPREFIX  
> > &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[PREFIX]
> > 
> > By default, `make install' will install all the files in  
> > `/usr/local/bin', `/usr/local/lib' etc. You can specify  
> > an installation prefix other than `/usr/local' using `--prefix',  
> > for instance `--prefix=$HOME'.  
> > --8\<----8\<----8\<----8\<----8\<----8\<----8\<----8\<----8\<----8\<----8\<----8\<----8\<--
> > 
> > So: the way to to make an installation that resides in a non-standard  
> > location is clearly indicated. Then, you will have executables,  
> > libraries and include files installed in non-standard places, of  
> > course. It is part of system administration practice (I imagine you  
> > are under Linux) to configure things so that you can use all of those  
> > elements. You can succeed, but you must learn your whereabouts. It may  
> > look like a hurdles race.
> > 
> > > apt-get install rubyX rubyX-dev
> > 
> > There I cannot help you anymore. I stopped using debian and  
> > derivatives when systemd entered into that picture.
> > 
> > Carlo

---

<div class="post-metadata">

### Author: ![Carlo\_E\_Prelz](https://avatars.discourse-cdn.com/v4/letter/c/dbc845/32.png) [@Carlo\_E\_Prelz](https://rubytalk.org/u/Carlo_E_Prelz)
#### Post date: [6 September 2016 20:03 UTC](https://rubytalk.org/t/same-question-but-different-account-installing-ruby-to-desktop-folder-as-if-i-used-sudo-apt-get-install-rubyx-rubyx-dev/73799/4 "2016-09-06T20:03:45Z")

</div>

Quoting steve.sbh77 (steve.sbh77@gmail.com):

> Thank you for your reply Carlo. I realize what I meant to ask was  
> (though I guess I really didn't) if downloading from one (or either?) of  
> the svn addresses would result in a full Ruby installation, such as what  
> one would have if they did "sudo apt-get install ruby24 ruby24-dev".

That way you get Matz's official \*source\* for ruby. Having compiled  
software packages for decades, I can guarantee that compiling Ruby is  
as easy as can get.

Once you have compiled Ruby, you have the interpreter and the  
libraries for linking external gems that include C extensions. You do  
have the 'gem' command, that allows you to load whatever extension you  
need that happens to be distributed in gem format. Having said that, I  
admit ignorance in that I have no idea about what 'ruby24' is. The  
impression I get from your errors is that Ruby's 'make install' has  
not been run. Otherwise ruby.h would be where your version of Ruby  
expects to find it when executing the 'extconf.rb' scripts of the  
various C extensions that you happen to be trying to compile.

> Maybe my dilemma is more on the part of redmine but due to what I'm  
> getting back on SE I thought I might have grabbed the wrong ruby.
> 
> My full question in all its horrible glory is here on SO;
> 
> [ruby.h library(ies) not found despite make check success; when building redmine - Stack Overflow](https://stackoverflow.com/questions/39323697/ruby-h-libraryies-not-found-despite-make-check-success-when-building-redmine)
> 
> Is this clear?

As clear as the fact that I never used redmine or rails... What I know  
is how to build Ruby.

This guide I found on the redmine site shows a possible path to follow  
once you have working ruby and gem executables (that means that you  
must have compiled and installed the ruby code you have downloaded):

> **[InstallRedmineOnDebianStableApacheMysqlPassenger - Redmine](https://www.redmine.org/projects/redmine/wiki/InstallRedmineOnDebianStableApacheMysqlPassenger)**
>
> Redmine

The path looks twisty and full of possible pitfalls... The fact that  
you appear to be on osx does not facilitate things.

Since redmine requires rails, you may have more luck knocking at a  
rails-focused forum.

Carlo

> **···**
>
> Subject: Re: same question but different account - installing Ruby to Desktop folder as if I used "sudo apt-get install rubyX rubyX-dev"  
> &nbsp;&nbsp;Date: Tue 06 Sep 16 09:17:49AM -0600
> 
> --  
> &nbsp;&nbsp;\* Se la Strada e la sua Virtu' non fossero state messe da parte,  
> \* K \* Carlo E. Prelz - fluido@fluido.as che bisogno ci sarebbe  
> &nbsp;&nbsp;\* di parlare tanto di amore e di rettitudine? (Chuang-Tzu)

---

<div class="post-metadata">

### Author: ![steve.sbh77](https://avatars.discourse-cdn.com/v4/letter/s/ba8739/32.png) [@steve.sbh77](https://rubytalk.org/u/steve.sbh77)
#### Post date: [6 September 2016 20:19 UTC](https://rubytalk.org/t/same-question-but-different-account-installing-ruby-to-desktop-folder-as-if-i-used-sudo-apt-get-install-rubyx-rubyx-dev/73799/5 "2016-09-06T20:19:19Z")

</div>

Thank you yet again Carlo,

Just one question before I look to try some of the things in the link  
you kindly provided.... If "make check" succeeds, as well as simply  
calling "ruby -v", doesn't this mean that the "make install" did in fact  
work?

I did this:

svn co ....  
autoconf  
./configure ...  
make  
make check  
make install

So after all this "make check" did succeed, and so does "ruby -v", as  
well as the "gem install" on \*some\* gems, but not all. Those it fails  
for are the ones that complain about missing ruby.h because it/they  
expect it elsewhere, apparently.

Thank you again,  
Brett

P.S. Maybe I will try "make distclean" and start over too...

> **···**
>
> On 09/06/2016 02:03 PM, Carlo E. Prelz wrote:
> 
> > &nbsp;&nbsp;Subject: Re: same question but different account - installing Ruby to Desktop folder as if I used "sudo apt-get install rubyX rubyX-dev"  
> > &nbsp;&nbsp;Date: Tue 06 Sep 16 09:17:49AM -0600
> > 
> > Quoting steve.sbh77 (steve.sbh77@gmail.com):
> > 
> > > Thank you for your reply Carlo. I realize what I meant to ask was  
> > > (though I guess I really didn't) if downloading from one (or either?) of  
> > > the svn addresses would result in a full Ruby installation, such as what  
> > > one would have if they did "sudo apt-get install ruby24 ruby24-dev".
> > 
> > That way you get Matz's official \*source\* for ruby. Having compiled  
> > software packages for decades, I can guarantee that compiling Ruby is  
> > as easy as can get.
> > 
> > Once you have compiled Ruby, you have the interpreter and the  
> > libraries for linking external gems that include C extensions. You do  
> > have the 'gem' command, that allows you to load whatever extension you  
> > need that happens to be distributed in gem format. Having said that, I  
> > admit ignorance in that I have no idea about what 'ruby24' is. The  
> > impression I get from your errors is that Ruby's 'make install' has  
> > not been run. Otherwise ruby.h would be where your version of Ruby  
> > expects to find it when executing the 'extconf.rb' scripts of the  
> > various C extensions that you happen to be trying to compile.
> > 
> > > Maybe my dilemma is more on the part of redmine but due to what I'm  
> > > getting back on SE I thought I might have grabbed the wrong ruby.
> > > 
> > > My full question in all its horrible glory is here on SO;
> > > 
> > > [ruby.h library(ies) not found despite make check success; when building redmine - Stack Overflow](https://stackoverflow.com/questions/39323697/ruby-h-libraryies-not-found-despite-make-check-success-when-building-redmine)
> > > 
> > > Is this clear?
> > 
> > As clear as the fact that I never used redmine or rails... What I know  
> > is how to build Ruby.
> > 
> > This guide I found on the redmine site shows a possible path to follow  
> > once you have working ruby and gem executables (that means that you  
> > must have compiled and installed the ruby code you have downloaded):
> > 
> > [InstallRedmineOnDebianStableApacheMysqlPassenger - Redmine](http://www.redmine.org/projects/redmine/wiki/InstallRedmineOnDebianStableApacheMysqlPassenger)
> > 
> > The path looks twisty and full of possible pitfalls... The fact that  
> > you appear to be on osx does not facilitate things.
> > 
> > Since redmine requires rails, you may have more luck knocking at a  
> > rails-focused forum.
> > 
> > Carlo

---

<div class="post-metadata">

### Author: ![Carlo\_E\_Prelz](https://avatars.discourse-cdn.com/v4/letter/c/dbc845/32.png) [@Carlo\_E\_Prelz](https://rubytalk.org/u/Carlo_E_Prelz)
#### Post date: [7 September 2016 04:47 UTC](https://rubytalk.org/t/same-question-but-different-account-installing-ruby-to-desktop-folder-as-if-i-used-sudo-apt-get-install-rubyx-rubyx-dev/73799/6 "2016-09-07T04:47:39Z")

</div>

Quoting steve.sbh77 (steve.sbh77@gmail.com):

> P.S. Maybe I will try "make distclean" and start over too...

When I do 'make install,' the outupt I receve includes the lines

...  
installing common headers: /usr/local/include/ruby-2.4.0  
...  
installing extension headers: /usr/local/include/ruby-2.4.0/x86\_64-linux  
...

and, indeed, ruby.h is found at /usr/local/include/ruby-2.4.0.  
You may want to post the actual output of your 'make install'  
command.

You mention that you execute 'ruby -v'. Are you sure that you are  
running the executable you just compiled? You said you wanted to  
install the new copy in a non-standard location. What does

which ruby

returns? It is non-trivial to run anything complex from a non-standard  
location. It may well be that you have multiple installations of Ruby,  
and that in some phases of the process you mix up things.

Carlo

> **···**
>
> Subject: Re: same question but different account - installing Ruby to Desktop folder as if I used "sudo apt-get install rubyX rubyX-dev"  
> &nbsp;&nbsp;Date: mar 06 set 16 02:19:19 -0600
> 
> --  
> &nbsp;&nbsp;\* Se la Strada e la sua Virtu' non fossero state messe da parte,  
> \* K \* Carlo E. Prelz - fluido@fluido.as che bisogno ci sarebbe  
> &nbsp;&nbsp;\* di parlare tanto di amore e di rettitudine? (Chuang-Tzu)

---

<div class="post-metadata">

### Author: ![steve.sbh77](https://avatars.discourse-cdn.com/v4/letter/s/ba8739/32.png) [@steve.sbh77](https://rubytalk.org/u/steve.sbh77)
#### Post date: [8 September 2016 20:07 UTC](https://rubytalk.org/t/same-question-but-different-account-installing-ruby-to-desktop-folder-as-if-i-used-sudo-apt-get-install-rubyx-rubyx-dev/73799/7 "2016-09-08T20:07:08Z")

</div>

Hello again, I ran the making process again...

> **···**
>
> On 09/06/2016 10:47 PM, Carlo E. Prelz wrote:
> 
> > Subject: Re: same question but different account - installing Ruby  
> > to Desktop folder as if I used "sudo apt-get install rubyX rubyX-dev"  
> > Date: mar 06 set 16 02:19:19 -0600
> > 
> > Quoting steve.sbh77 (steve.sbh77@gmail.com):
> > 
> > > P.S. Maybe I will try "make distclean" and start over too...
> > 
> > When I do 'make install,' the outupt I receve includes the lines
> > 
> > ... installing common headers: /usr/local/include/ruby-2.4.0 ...  
> > installing extension headers:  
> > /usr/local/include/ruby-2.4.0/x86\_64-linux ...
> > 
> > and, indeed, ruby.h is found at /usr/local/include/ruby-2.4.0. You  
> > may want to post the actual output of your 'make install' command.
> 
> The output of 'make install' is;
> 
> \*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*  
> sbh@sbh-laptop-M18 ~/SW/Ruby/dev/ruby $ make install  
> &nbsp;&nbsp;CC = gcc  
> &nbsp;&nbsp;LD = ld  
> &nbsp;&nbsp;LDSHARED = gcc -shared  
> &nbsp;&nbsp;CFLAGS = -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter  
> -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers  
> -Wno-tautological-compare -Wno-parentheses-equality  
> -Wno-constant-logical-operand -Wno-self-assign -Wunused-variable  
> -Werror=implicit-int -Werror=pointer-arith -Werror=write-strings  
> -Werror=declaration-after-statement  
> -Werror=implicit-function-declaration -Werror=deprecated-declarations  
> -Wno-packed-bitfield-compat -Wsuggest-attribute=noreturn  
> -Wsuggest-attribute=format -Wno-maybe-uninitialized -std=gnu99  
> &nbsp;&nbsp;XCFLAGS = -D\_FORTIFY\_SOURCE=2 -fstack-protector -fno-strict-overflow  
> -fvisibility=hidden -fexcess-precision=standard -DRUBY\_EXPORT -fPIE  
> &nbsp;&nbsp;CPPFLAGS = -I. -I.ext/include/x86\_64-linux -I./include -I.  
> -I./enc/unicode/8.0.0  
> &nbsp;&nbsp;DLDFLAGS = -fstack-protector -pie  
> &nbsp;&nbsp;SOLIBS =  
> Using built-in specs.  
> COLLECT\_GCC=gcc  
> COLLECT\_LTO\_WRAPPER=/usr/lib/gcc/x86\_64-linux-gnu/5/lto-wrapper  
> Target: x86\_64-linux-gnu  
> Configured with: ../src/configure -v --with-pkgversion='Ubuntu  
> 5.4.0-6ubuntu1~16.04.2'  
> --with-bugurl=file:///usr/share/doc/gcc-5/README.Bugs  
> --enable-languages=c,ada,c++,java,go,d,fortran,objc,obj-c++  
> --prefix=/usr --program-suffix=-5 --enable-shared  
> --enable-linker-build-id --libexecdir=/usr/lib  
> --without-included-gettext --enable-threads=posix --libdir=/usr/lib  
> --enable-nls --with-sysroot=/ --enable-clocale=gnu  
> --enable-libstdcxx-debug --enable-libstdcxx-time=yes  
> --with-default-libstdcxx-abi=new --enable-gnu-unique-object  
> --disable-vtable-verify --enable-libmpx --enable-plugin  
> --with-system-zlib --disable-browser-plugin --enable-java-awt=gtk  
> --enable-gtk-cairo  
> --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-5-amd64/jre  
> --enable-java-home  
> --with-jvm-root-dir=/usr/lib/jvm/java-1.5.0-gcj-5-amd64  
> --with-jvm-jar-dir=/usr/lib/jvm-exports/java-1.5.0-gcj-5-amd64  
> --with-arch-directory=amd64  
> --with-ecj-jar=/usr/share/java/eclipse-ecj.jar --enable-objc-gc  
> --enable-multiarch --disable-werror --with-arch-32=i686 --with-abi=m64  
> --with-multilib-list=m32,m64,mx32 --enable-multilib --with-tune=generic  
> --enable-checking=release --build=x86\_64-linux-gnu  
> --host=x86\_64-linux-gnu --target=x86\_64-linux-gnu  
> Thread model: posix  
> gcc version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.2)  
> generating enc.mk  
> making srcs under enc  
> make[1]: Entering directory '/home/sbh/SW/Ruby/dev/ruby'  
> make[1]: Nothing to be done for 'srcs'.  
> make[1]: Leaving directory '/home/sbh/SW/Ruby/dev/ruby'  
> generating transdb.h  
> transdb.h unchanged  
> generating makefile exts.mk  
> make[1]: Entering directory '/home/sbh/SW/Ruby/dev/ruby'  
> make[2]: Entering directory '/home/sbh/SW/Ruby/dev/ruby/ext/bigdecimal'  
> make[2]: Leaving directory '/home/sbh/SW/Ruby/dev/ruby/ext/bigdecimal'  
> make[2]: Entering directory '/home/sbh/SW/Ruby/dev/ruby/ext/date'  
> make[2]: Leaving directory '/home/sbh/SW/Ruby/dev/ruby/ext/date'  
> make[2]: Entering directory '/home/sbh/SW/Ruby/dev/ruby/ext/digest'  
> make[2]: Leaving directory '/home/sbh/SW/Ruby/dev/ruby/ext/digest'  
> make[2]: Entering directory '/home/sbh/SW/Ruby/dev/ruby/ext/digest/sha2'  
> make[2]: Leaving directory '/home/sbh/SW/Ruby/dev/ruby/ext/digest/sha2'  
> make[2]: Entering directory '/home/sbh/SW/Ruby/dev/ruby/ext/fiddle'  
> make[2]: Leaving directory '/home/sbh/SW/Ruby/dev/ruby/ext/fiddle'  
> make[2]: Entering directory '/home/sbh/SW/Ruby/dev/ruby/ext/io/console'  
> make[2]: Leaving directory '/home/sbh/SW/Ruby/dev/ruby/ext/io/console'  
> make[2]: Entering directory '/home/sbh/SW/Ruby/dev/ruby/ext/json'  
> make[2]: Leaving directory '/home/sbh/SW/Ruby/dev/ruby/ext/json'  
> make[2]: Entering directory '/home/sbh/SW/Ruby/dev/ruby/ext/nkf'  
> make[2]: Leaving directory '/home/sbh/SW/Ruby/dev/ruby/ext/nkf'  
> make[2]: Entering directory '/home/sbh/SW/Ruby/dev/ruby/ext/openssl'  
> make[2]: Leaving directory '/home/sbh/SW/Ruby/dev/ruby/ext/openssl'  
> make[2]: Entering directory '/home/sbh/SW/Ruby/dev/ruby/ext/pathname'  
> make[2]: Leaving directory '/home/sbh/SW/Ruby/dev/ruby/ext/pathname'  
> make[2]: Entering directory '/home/sbh/SW/Ruby/dev/ruby/ext/psych'  
> make[2]: Leaving directory '/home/sbh/SW/Ruby/dev/ruby/ext/psych'  
> make[2]: Entering directory '/home/sbh/SW/Ruby/dev/ruby/ext/pty'  
> make[2]: Leaving directory '/home/sbh/SW/Ruby/dev/ruby/ext/pty'  
> make[2]: Entering directory '/home/sbh/SW/Ruby/dev/ruby/ext/ripper'  
> make[2]: Leaving directory '/home/sbh/SW/Ruby/dev/ruby/ext/ripper'  
> make[2]: Entering directory '/home/sbh/SW/Ruby/dev/ruby/ext/socket'  
> make[2]: Leaving directory '/home/sbh/SW/Ruby/dev/ruby/ext/socket'  
> make[2]: Entering directory '/home/sbh/SW/Ruby/dev/ruby/ext/syslog'  
> make[2]: Leaving directory '/home/sbh/SW/Ruby/dev/ruby/ext/syslog'  
> make[2]: Entering directory '/home/sbh/SW/Ruby/dev/ruby'  
> make[2]: 'ruby' is up to date.  
> make[2]: Leaving directory '/home/sbh/SW/Ruby/dev/ruby'  
> make[1]: Leaving directory '/home/sbh/SW/Ruby/dev/ruby'  
> making enc  
> make[1]: Entering directory '/home/sbh/SW/Ruby/dev/ruby'  
> make[1]: Nothing to be done for 'enc'.  
> make[1]: Leaving directory '/home/sbh/SW/Ruby/dev/ruby'  
> making trans  
> make[1]: Entering directory '/home/sbh/SW/Ruby/dev/ruby'  
> make[1]: Nothing to be done for './enc/trans'.  
> make[1]: Leaving directory '/home/sbh/SW/Ruby/dev/ruby'  
> making encs  
> make[1]: Entering directory '/home/sbh/SW/Ruby/dev/ruby'  
> make[1]: Nothing to be done for 'encs'.  
> make[1]: Leaving directory '/home/sbh/SW/Ruby/dev/ruby'  
> Generating RDoc documentation
> 
> No newer files.
> 
> &nbsp;&nbsp;Files: 0
> 
> &nbsp;&nbsp;Classes: 0 (0 undocumented)  
> &nbsp;&nbsp;Modules: 0 (0 undocumented)  
> &nbsp;&nbsp;Constants: 0 (0 undocumented)  
> &nbsp;&nbsp;Attributes: 0 (0 undocumented)  
> &nbsp;&nbsp;Methods: 0 (0 undocumented)
> 
> &nbsp;&nbsp;Total: 0 (0 undocumented)  
> &nbsp;&nbsp;&nbsp;&nbsp;0.00% documented
> 
> &nbsp;&nbsp;Elapsed: 0.0s
> 
> ./miniruby -I./lib -I. -I.ext/common ./tool/runruby.rb --extout=.ext  
> -- --disable-gems -r./x86\_64-linux-fake ./tool/rbinstall.rb  
> --make="make" --dest-dir="" --extout=".ext" --mflags="" --make-flags=""  
> --data-mode=0644 --prog-mode=0755 --installed-list .installed.list  
> --mantype="doc" --install=all --rdoc-output=".ext/rdoc"  
> installing binary commands: /home/sbh/SW/Ruby/dev/execprefix/bin  
> installing base libraries: /home/sbh/SW/Ruby/dev/execprefix/lib  
> installing arch files:  
> /home/sbh/SW/Ruby/dev/execprefix/lib/ruby/2.4.0/x86\_64-linux  
> installing pkgconfig data: /home/sbh/SW/Ruby/dev/execprefix/lib/pkgconfig  
> installing command scripts: /home/sbh/SW/Ruby/dev/execprefix/bin  
> installing library scripts:  
> /home/sbh/SW/Ruby/dev/execprefix/lib/ruby/2.4.0  
> installing common headers:  
> /home/sbh/SW/Ruby/dev/prefix/include/ruby-2.4.0  
> installing manpages: /home/sbh/SW/Ruby/dev/prefix/share/man/man1  
> installing extension objects:  
> /home/sbh/SW/Ruby/dev/execprefix/lib/ruby/2.4.0/x86\_64-linux  
> installing extension objects:  
> /home/sbh/SW/Ruby/dev/execprefix/lib/ruby/site\_ruby/2.4.0/x86\_64-linux  
> installing extension objects:  
> /home/sbh/SW/Ruby/dev/execprefix/lib/ruby/vendor\_ruby/2.4.0/x86\_64-linux  
> installing extension headers:  
> /home/sbh/SW/Ruby/dev/prefix/include/ruby-2.4.0/x86\_64-linux  
> installing extension scripts:  
> /home/sbh/SW/Ruby/dev/execprefix/lib/ruby/2.4.0  
> installing extension scripts:  
> /home/sbh/SW/Ruby/dev/execprefix/lib/ruby/site\_ruby/2.4.0  
> installing extension scripts:  
> /home/sbh/SW/Ruby/dev/execprefix/lib/ruby/vendor\_ruby/2.4.0  
> installing extension headers:  
> /home/sbh/SW/Ruby/dev/prefix/include/ruby-2.4.0/ruby  
> installing default gems:  
> /home/sbh/SW/Ruby/dev/execprefix/lib/ruby/gems/2.4.0 (build\_info, cache,  
> doc, extensions, gems, specifications)  
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;bigdecimal 1.2.8  
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;io-console 0.4.6  
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;json 2.0.2  
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;openssl 2.0.0.beta.1  
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;psych 2.1.0  
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;rdoc 4.2.1  
> installing bundle gems:  
> /home/sbh/SW/Ruby/dev/execprefix/lib/ruby/gems/2.4.0 (build\_info, cache,  
> doc, extensions, gems, specifications)  
> installing rdoc:  
> /home/sbh/SW/Ruby/dev/prefix/share/ri/2.4.0/system  
> installing capi-docs: /home/sbh/SW/Ruby/dev/prefix/share/doc/ruby  
> \*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*
> 
> which, I believe, shows that everything is installed under the root  
> /home/sbh/SW/Ruby/dev/
> 
> > You mention that you execute 'ruby -v'. Are you sure that you are  
> > running the executable you just compiled? You said you wanted to  
> > install the new copy in a non-standard location. What does
> > 
> > which ruby
> > 
> > returns?
> 
> I'm not sure why things like Ruby and SBCL (Lisp) need themselves to be  
> installed first before they can be installed... so, I used apt-get to  
> install an older version.
> 
> This is what I get;
> 
> sbh@sbh-laptop-M18 ~/SW/Ruby/dev/execprefix/bin $  
> /home/sbh/SW/Ruby/dev/execprefix/bin/ruby -v  
> ruby 2.4.0dev (2016-09-05 trunk 56071) [x86\_64-linux]
> 
> or ./ruby -v from the same directory. Without the full path, I would use  
> the apt-get one,
> 
> sbh@sbh-laptop-M18 ~/SW/Ruby/dev/execprefix/bin $ ruby -v  
> ruby 2.3.1p112 (2016-04-26) [x86\_64-linux-gnu]
> 
> which I intend on removing afterwards and adding appropriate paths to  
> places to use the newer Ruby installation - maybe something like  
> update-alternatives, though I'm not sure...
> 
> Clearly the default, as I had already known, is the apt-get one;
> 
> sbh@sbh-laptop-M18 ~/SW/Ruby/dev/execprefix/bin $ which ruby | xargs ls  
> -Alrt  
> lrwxrwxrwx 1 root root 7 Mar 13 15:11 /usr/bin/ruby -\> ruby2.3
> 
> It is non-trivial to run anything complex from a
> 
> > non-standard location.
> 
> I completely agree it is not as easy as just ./configure, but I do this  
> with most of my software and usually don't run into too many problems.
> 
> It may well be that you have multiple
> 
> > installations of Ruby, and that in some phases of the process you  
> > mix up things.
> > 
> > Carlo
> 
> In summary though, the failed installation of \*some\* of the gems,  
> request a ruby.h file from;
> 
> mkmf.rb can't find header files for ruby at /home/sbh/SW/Ruby  
> &nbsp;&nbsp;/dev/execprefix/lib/ruby/include/ruby.h
> 
> which does not show up in the 'make install' output.
> 
> Thanks much,
> 
> Brett

---

<div class="post-metadata">

### Author: ![Carlo\_E\_Prelz](https://avatars.discourse-cdn.com/v4/letter/c/dbc845/32.png) [@Carlo\_E\_Prelz](https://rubytalk.org/u/Carlo_E_Prelz)
#### Post date: [9 September 2016 05:34 UTC](https://rubytalk.org/t/same-question-but-different-account-installing-ruby-to-desktop-folder-as-if-i-used-sudo-apt-get-install-rubyx-rubyx-dev/73799/8 "2016-09-09T05:34:36Z")

</div>

Quoting steve.sbh77 (steve.sbh77@gmail.com):

> which, I believe, shows that everything is installed under the root  
> /home/sbh/SW/Ruby/dev/

You added somewhere this 'execprefix' part to the path. You must have  
also used --exec-prefix.

I never used this --exec-prefix configure parameter. How did you  
invoke ./configure? You can find the exact parameters you used in the  
first lines of the config.log file that is left after you run  
configure. If I were you, I'd remove the current /home/sbh/SW/Ruby/dev  
directory, and start from scratch from a clean SVN pull:

cd (wherever you want)  
rm -rf ruby  
svn co [http://svn.ruby-lang.org/repos/ruby/trunk](http://svn.ruby-lang.org/repos/ruby/trunk) ruby  
cd ruby  
autoreconf -fi  
./configure --prefix=/home/sbh/SW/Ruby/dev/  
make  
make install

Instead of running the new interpreter by specifying its complete  
path, did you try to modify the PATH environment variable? Like, with

export PATH=/home/sbh/SW/Ruby/dev/execprefix/bin/:$PATH

? (remove the 'execprefix' part if you recompile as I show above). If  
you do that, your new interpreter will be run as default.

You should find your gems' code under

/home/sbh/SW/Ruby/dev/execprefix/lib/ruby/gems/2.4.0/gems

You can monitor that directory. If/when the installation of a gem  
fails during the compilation of the C part, you can look at its  
directory there. In the directory for the specific gem, there should  
be a subdir called 'ext'. Under it ther should be yet another dir with  
the name of the gem. There you will find the C stuff that is being  
compiled. To see what goes wrong, run

ruby extconf.rb  
make

from inside that dir (be sure that you are using your new  
interpreter!) An error should be easier to trace from there.

Carlo

> **···**
>
> Subject: Re: same question but different account - installing Ruby to Desktop folder as if I used "sudo apt-get install rubyX rubyX-dev"  
> &nbsp;&nbsp;Date: gio 08 set 16 02:07:08 -0600
> 
> --  
> &nbsp;&nbsp;\* Se la Strada e la sua Virtu' non fossero state messe da parte,  
> \* K \* Carlo E. Prelz - fluido@fluido.as che bisogno ci sarebbe  
> &nbsp;&nbsp;\* di parlare tanto di amore e di rettitudine? (Chuang-Tzu)

---

<div class="post-metadata">

### Author: ![steve.sbh77](https://avatars.discourse-cdn.com/v4/letter/s/ba8739/32.png) [@steve.sbh77](https://rubytalk.org/u/steve.sbh77)
#### Post date: [15 September 2016 02:03 UTC](https://rubytalk.org/t/same-question-but-different-account-installing-ruby-to-desktop-folder-as-if-i-used-sudo-apt-get-install-rubyx-rubyx-dev/73799/9 "2016-09-15T02:03:10Z")

</div>

Hi, apologies as I have been ill and so my response was a little slow 😉

> &nbsp;&nbsp;Subject: Re: same question but different account - installing Ruby to Desktop folder as if I used "sudo apt-get install rubyX rubyX-dev"  
> &nbsp;&nbsp;Date: gio 08 set 16 02:07:08 -0600
> 
> Quoting steve.sbh77 (steve.sbh77@gmail.com):
> 
> > which, I believe, shows that everything is installed under the root  
> > /home/sbh/SW/Ruby/dev/
> 
> You added somewhere this 'execprefix' part to the path. You must have  
> also used --exec-prefix.
> 
> I never used this --exec-prefix configure parameter. How did you  
> invoke ./configure? You can find the exact parameters you used in the  
> first lines of the config.log file that is left after you run  
> configure. If I were you, I'd remove the current /home/sbh/SW/Ruby/dev  
> directory, and start from scratch from a clean SVN pull:

So starting from inside the empty direcotry, "/home/sbh/SW/Ruby/" I did the following as you prescribed.

> cd (wherever you want)  
> rm -rf ruby  
> svn co [http://svn.ruby-lang.org/repos/ruby/trunk](http://svn.ruby-lang.org/repos/ruby/trunk) ruby  
> cd ruby  
> autoreconf -fi

At this point I get;

sbh@sbh-laptop-M18 ~/SW/Ruby/ruby $ autoreconf -fi  
aclocal: warning: autoconf input should be named 'configure.ac', not 'configure.in'

Also, due to svn, my old folder name "dev" is now "ruby".

I notice, under ./configure --help, that EPREFIX is by default PREFIX, which in most of the software  
I've installed is not the case - hence the habit of mine of making directories "prefix",  
"execprefix", etc. I did add "oldincludedir". Therefore using what you suggest;

./configure --prefix=/home/sbh/SW/Ruby/prefix/ --oldincludedir=/home/sbh/SW/Ruby/oldincludedir/

This gave the summary;

Configuration summary for ruby version 2.4.0

&nbsp;&nbsp;&nbsp;\* Installation prefix: /home/sbh/SW/Ruby/prefix  
&nbsp;&nbsp;&nbsp;\* exec prefix: ${prefix}  
&nbsp;&nbsp;&nbsp;\* arch: x86\_64-linux  
&nbsp;&nbsp;&nbsp;\* site arch: ${arch}  
&nbsp;&nbsp;&nbsp;\* RUBY\_BASE\_NAME: ruby  
&nbsp;&nbsp;&nbsp;\* ruby lib prefix: ${libdir}/${RUBY\_BASE\_NAME}  
&nbsp;&nbsp;&nbsp;\* site libraries path: ${rubylibprefix}/${sitearch}  
&nbsp;&nbsp;&nbsp;\* vendor path: ${rubylibprefix}/vendor\_ruby  
&nbsp;&nbsp;&nbsp;\* target OS: linux  
&nbsp;&nbsp;&nbsp;\* compiler: gcc  
&nbsp;&nbsp;&nbsp;\* with pthread: yes  
&nbsp;&nbsp;&nbsp;\* enable shared libs: no  
&nbsp;&nbsp;&nbsp;\* dynamic library ext: so  
&nbsp;&nbsp;&nbsp;\* CFLAGS: ${optflags} ${debugflags} ${warnflags}  
&nbsp;&nbsp;&nbsp;\* LDFLAGS: -L. -fstack-protector -rdynamic \  
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Wl,-export-dynamic  
&nbsp;&nbsp;&nbsp;\* optflags: -O3 -fno-fast-math  
&nbsp;&nbsp;&nbsp;\* debugflags: -ggdb3  
&nbsp;&nbsp;&nbsp;\* warnflags: -Wall -Wextra -Wno-unused-parameter \  
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Wno-parentheses -Wno-long-long \  
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Wno-missing-field-initializers \  
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Wno-tautological-compare \  
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Wno-parentheses-equality \  
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Wno-constant-logical-operand -Wno-self-assign \  
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Wunused-variable -Werror=implicit-int \  
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Werror=pointer-arith -Werror=write-strings \  
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Werror=declaration-after-statement \  
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Werror=implicit-function-declaration \  
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Werror=deprecated-declarations \  
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Wno-packed-bitfield-compat \  
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Wsuggest-attribute=noreturn \  
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Wsuggest-attribute=format \  
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Wno-maybe-uninitialized  
&nbsp;&nbsp;&nbsp;\* strip command: strip -S -x  
&nbsp;&nbsp;&nbsp;\* install doc: yes  
&nbsp;&nbsp;&nbsp;\* man page type: doc

> **···**
>
> On 09/08/2016 11:34 PM, Carlo E. Prelz wrote:
> 
> ---
> 
> > ./configure --prefix=/home/sbh/SW/Ruby/dev/  
> > make  
> > make install
> 
> For which "make" gave;
> 
> ...  
> Generating RI format into /home/sbh/SW/Ruby/ruby/.ext/rdoc...
> 
> &nbsp;&nbsp;Files: 950
> 
> &nbsp;&nbsp;Classes: 1374 ( 560 undocumented)  
> &nbsp;&nbsp;Modules: 277 ( 108 undocumented)  
> &nbsp;&nbsp;Constants: 2154 ( 590 undocumented)  
> &nbsp;&nbsp;Attributes: 1139 ( 248 undocumented)  
> &nbsp;&nbsp;Methods: 10471 (2147 undocumented)
> 
> &nbsp;&nbsp;Total: 15415 (3653 undocumented)  
> &nbsp;&nbsp;&nbsp;76.30% documented
> 
> &nbsp;&nbsp;Elapsed: 40.4s
> 
> "make check" gave;
> 
> [1324/16508] OpenSSL::TestSSL#test\_ctx\_options = 0.00s  
> &nbsp;&nbsp;1) Failure:  
> OpenSSL::TestSSL#test\_ctx\_options [/home/sbh/SW/Ruby/ruby/test/openssl/test\_ssl.rb:14]:  
> \<2147486719\> expected but was  
> \<2181041151\>.
> 
> Finished tests in 264.296222s, 62.4337 tests/s, 8427.5628 assertions/s.
> 
> 16501 tests, 2227373 assertions, 1 failures, 0 errors, 40 skips
> 
> ruby -v: ruby 2.4.0dev (2016-09-15 trunk 56164) [x86\_64-linux]  
> uncommon.mk:630: recipe for target 'yes-test-almost' failed  
> make: \*\*\* [yes-test-almost] Error 1
> 
> but looking very quickly at this;  
> [Bug #12433: uncommon.mk:614: recipe for target 'yes-test-almost' failed - missing UnicodeData.txt - Ruby master - Ruby Issue Tracking System](https://bugs.ruby-lang.org/issues/12433) didn't lead me anywhere yet. And then "make install" put out;
> 
> ./miniruby -I./lib -I. -I.ext/common ./tool/runruby.rb --extout=.ext -- --disable-gems  
> -r./x86\_64-linux-fake ./tool/rbinstall.rb --make="make" --dest-dir="" --extout=".ext" --mflags=""  
> --make-flags="" --data-mode=0644 --prog-mode=0755 --installed-list .installed.list --mantype="doc"  
> --install=all --rdoc-output=".ext/rdoc"  
> installing binary commands: /home/sbh/SW/Ruby/prefix/bin  
> installing base libraries: /home/sbh/SW/Ruby/prefix/lib  
> installing arch files: /home/sbh/SW/Ruby/prefix/lib/ruby/2.4.0/x86\_64-linux  
> installing pkgconfig data: /home/sbh/SW/Ruby/prefix/lib/pkgconfig  
> installing command scripts: /home/sbh/SW/Ruby/prefix/bin  
> installing library scripts: /home/sbh/SW/Ruby/prefix/lib/ruby/2.4.0  
> installing common headers: /home/sbh/SW/Ruby/prefix/include/ruby-2.4.0  
> installing manpages: /home/sbh/SW/Ruby/prefix/share/man/man1  
> installing extension objects: /home/sbh/SW/Ruby/prefix/lib/ruby/2.4.0/x86\_64-linux  
> installing extension objects: /home/sbh/SW/Ruby/prefix/lib/ruby/site\_ruby/2.4.0/x86\_64-linux  
> installing extension objects: /home/sbh/SW/Ruby/prefix/lib/ruby/vendor\_ruby/2.4.0/x86\_64-linux  
> installing extension headers: /home/sbh/SW/Ruby/prefix/include/ruby-2.4.0/x86\_64-linux  
> installing extension scripts: /home/sbh/SW/Ruby/prefix/lib/ruby/2.4.0  
> installing extension scripts: /home/sbh/SW/Ruby/prefix/lib/ruby/site\_ruby/2.4.0  
> installing extension scripts: /home/sbh/SW/Ruby/prefix/lib/ruby/vendor\_ruby/2.4.0  
> installing extension headers: /home/sbh/SW/Ruby/prefix/include/ruby-2.4.0/ruby  
> installing default gems: /home/sbh/SW/Ruby/prefix/lib/ruby/gems/2.4.0 (build\_info, cache, doc,  
> extensions, gems, specifications)  
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;bigdecimal 1.2.8  
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;io-console 0.4.6  
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;json 2.0.2  
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;openssl 2.0.0.beta.2  
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;psych 2.1.1  
> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;rdoc 5.0.0.beta2  
> installing bundle gems: /home/sbh/SW/Ruby/prefix/lib/ruby/gems/2.4.0 (build\_info, cache, doc,  
> extensions, gems, specifications)  
> installing rdoc: /home/sbh/SW/Ruby/prefix/share/ri/2.4.0/system  
> installing capi-docs: /home/sbh/SW/Ruby/prefix/share/doc/ruby
> 
> I haven't tried installing/reinstalling/whatever with redmine yet, until I try a little more on what  
> this failure means. Maybe it doesn't mean anything but I'm not sure yet.
> 
> I do note that I have these ruby.h locations;
> 
> sbh@sbh-laptop-M18 ~/SW/Ruby $ find . -name ruby.h -exec ls -Alrt {} \;  
> -rw-r--r-- 1 sbh sbh 868 Sep 14 19:34 ./ruby/include/ruby.h  
> -rw-r--r-- 1 sbh sbh 77600 Sep 14 19:34 ./ruby/include/ruby/ruby.h  
> -rw-r--r-- 1 sbh sbh 868 Sep 14 19:34 ./prefix/include/ruby-2.4.0/ruby.h  
> -rw-r--r-- 1 sbh sbh 77600 Sep 14 19:34 ./prefix/include/ruby-2.4.0/ruby/ruby.h
> 
> and during trying to install redmine, Ruby's gem "install" was expecting ruby.h to be in a path with  
> "lib/" in it...
> 
> Anyway, so now I change the PATH, putting the new ruby at the beginning. I verified it with ruby -v  
> too.
> 
> So I then do;
> 
> bundle install --without development test
> 
> resulting in a bunch of errors;
> 
> sbh@sbh-laptop-M18 ~/SW/Redmine/redmine $ bundle install --without developement test  
> Fetching gem metadata from [https://rubygems.org/](https://rubygems.org/)  
> Fetching version metadata from [https://rubygems.org/](https://rubygems.org/)  
> Fetching dependency metadata from [https://rubygems.org/](https://rubygems.org/)  
> Resolving dependencies....  
> Using rake 11.2.2  
> Using i18n 0.7.0  
> Using json 1.8.3  
> Using minitest 5.9.0  
> Using thread\_safe 0.3.5  
> Using builder 3.2.2  
> Using erubis 2.7.0  
> Using mini\_portile2 2.1.0  
> Using pkg-config 1.1.7  
> Using rack 1.6.4  
> Using mime-types-data 3.2016.0521  
> Using arel 6.0.3  
> Using addressable 2.4.0  
> Using bundler 1.12.5  
> Using coderay 1.1.1  
> Using concurrent-ruby 1.0.2  
> Using htmlentities 4.3.1  
> Using thor 0.19.1  
> Using mimemagic 0.3.2  
> Using net-ldap 0.12.1  
> Using ruby-openid 2.3.0  
> Using rbpdf-font 1.19.0  
> Installing redcarpet 3.3.4 with native extensions
> 
> Gem::Ext::BuildError: ERROR: Failed to build gem native extension.
> 
> &nbsp;&nbsp;&nbsp;&nbsp;current directory:  
> /home/sbh/SW/Redmine/redmine/vendor/bundle/ruby/2.3.0/gems/redcarpet-3.3.4/ext/redcarpet  
> /usr/bin/ruby2.3 -r ./siteconf20160914-8576-9xhgmg.rb extconf.rb  
> mkmf.rb can't find header files for ruby at /usr/lib/ruby/include/ruby.h
> 
> extconf failed, exit code 1
> 
> Gem files will remain installed in  
> /home/sbh/SW/Redmine/redmine/vendor/bundle/ruby/2.3.0/gems/redcarpet-3.3.4 for inspection.  
> Results logged to  
> /home/sbh/SW/Redmine/redmine/vendor/bundle/ruby/2.3.0/extensions/x86\_64-linux/2.3.0/redcarpet-3.3.4/gem\_make.out  
> Using request\_store 1.0.5  
> Installing rmagick 2.16.0 with native extensions
> 
> Gem::Ext::BuildError: ERROR: Failed to build gem native extension.
> 
> &nbsp;&nbsp;&nbsp;&nbsp;current directory:  
> /home/sbh/SW/Redmine/redmine/vendor/bundle/ruby/2.3.0/gems/rmagick-2.16.0/ext/RMagick  
> /usr/bin/ruby2.3 -r ./siteconf20160914-8576-1q1pv7l.rb extconf.rb  
> mkmf.rb can't find header files for ruby at /usr/lib/ruby/include/ruby.h
> 
> extconf failed, exit code 1
> 
> Gem files will remain installed in  
> /home/sbh/SW/Redmine/redmine/vendor/bundle/ruby/2.3.0/gems/rmagick-2.16.0 for inspection.  
> Results logged to  
> /home/sbh/SW/Redmine/redmine/vendor/bundle/ruby/2.3.0/extensions/x86\_64-linux/2.3.0/rmagick-2.16.0/gem\_make.out  
> Installing sqlite3 1.3.11 with native extensions
> 
> Gem::Ext::BuildError: ERROR: Failed to build gem native extension.
> 
> &nbsp;&nbsp;&nbsp;&nbsp;current directory:  
> /home/sbh/SW/Redmine/redmine/vendor/bundle/ruby/2.3.0/gems/sqlite3-1.3.11/ext/sqlite3  
> /usr/bin/ruby2.3 -r ./siteconf20160914-8576-lssjuy.rb extconf.rb  
> mkmf.rb can't find header files for ruby at /usr/lib/ruby/include/ruby.h
> 
> extconf failed, exit code 1
> 
> Gem files will remain installed in  
> /home/sbh/SW/Redmine/redmine/vendor/bundle/ruby/2.3.0/gems/sqlite3-1.3.11 for inspection.  
> Results logged to  
> /home/sbh/SW/Redmine/redmine/vendor/bundle/ruby/2.3.0/extensions/x86\_64-linux/2.3.0/sqlite3-1.3.11/gem\_make.out  
> Using tzinfo 1.2.2  
> Installing nokogiri 1.6.8 with native extensions
> 
> Gem::Ext::BuildError: ERROR: Failed to build gem native extension.
> 
> &nbsp;&nbsp;&nbsp;&nbsp;current directory:  
> /home/sbh/SW/Redmine/redmine/vendor/bundle/ruby/2.3.0/gems/nokogiri-1.6.8/ext/nokogiri  
> /usr/bin/ruby2.3 -r ./siteconf20160914-8576-aozfjx.rb extconf.rb  
> mkmf.rb can't find header files for ruby at /usr/lib/ruby/include/ruby.h
> 
> extconf failed, exit code 1
> 
> Gem files will remain installed in  
> /home/sbh/SW/Redmine/redmine/vendor/bundle/ruby/2.3.0/gems/nokogiri-1.6.8 for inspection.  
> Results logged to  
> /home/sbh/SW/Redmine/redmine/vendor/bundle/ruby/2.3.0/extensions/x86\_64-linux/2.3.0/nokogiri-1.6.8/gem\_make.out  
> Using rack-test 0.6.3  
> Using mime-types 3.1  
> Using css\_parser 1.3.7  
> Using sprockets 3.7.0  
> Using rack-openid 1.4.2  
> Using rbpdf 1.19.0  
> An error occurred while installing redcarpet (3.3.4), and Bundler cannot continue.  
> Make sure that `gem install redcarpet -v '3.3.4'` succeeds before bundling.
> 
> and so choosing to do what the last line above said, I did this;
> 
> gem install redcarpet -v '3.3.4'
> 
> which says;
> 
> sbh@sbh-laptop-M18 ~/SW/Redmine/redmine $ gem install redcarpet -v '3.3.4'  
> Building native extensions. This could take a while...  
> Successfully installed redcarpet-3.3.4  
> Parsing documentation for redcarpet-3.3.4  
> Done installing documentation for redcarpet after 0 seconds  
> 1 gem installed
> 
> So I think it is okay.... so I run again "bundle install --without development test", and I get the  
> same error as above - that redcarpet did not work, etc.
> 
> I also notice that it is still complaining about the same thing --- header files for ruby at  
> "/usr/lib/ruby/include/rubh.h"...
> 
> Thank you for your time and advice in looking at this.
> 
> Best wishes,  
> Brett
> 
> > Instead of running the new interpreter by specifying its complete  
> > path, did you try to modify the PATH environment variable? Like, with
> > 
> > export PATH=/home/sbh/SW/Ruby/dev/execprefix/bin/:$PATH
> > 
> > ? (remove the 'execprefix' part if you recompile as I show above). If  
> > you do that, your new interpreter will be run as default.
> > 
> > You should find your gems' code under
> > 
> > /home/sbh/SW/Ruby/dev/execprefix/lib/ruby/gems/2.4.0/gems
> > 
> > You can monitor that directory. If/when the installation of a gem  
> > fails during the compilation of the C part, you can look at its  
> > directory there. In the directory for the specific gem, there should  
> > be a subdir called 'ext'. Under it ther should be yet another dir with  
> > the name of the gem. There you will find the C stuff that is being  
> > compiled. To see what goes wrong, run
> > 
> > ruby extconf.rb  
> > make
> > 
> > from inside that dir (be sure that you are using your new  
> > interpreter!) An error should be easier to trace from there.
> > 
> > Carlo

---

<div class="post-metadata">

### Author: ![Carlo\_E\_Prelz](https://avatars.discourse-cdn.com/v4/letter/c/dbc845/32.png) [@Carlo\_E\_Prelz](https://rubytalk.org/u/Carlo_E_Prelz)
#### Post date: [15 September 2016 05:08 UTC](https://rubytalk.org/t/same-question-but-different-account-installing-ruby-to-desktop-folder-as-if-i-used-sudo-apt-get-install-rubyx-rubyx-dev/73799/10 "2016-09-15T05:08:29Z")

</div>

> ...  
> ...  
> Therefore using what you suggest;
> 
> ./configure --prefix=/home/sbh/SW/Ruby/prefix/ --oldincludedir=/home/sbh/SW/Ruby/oldincludedir/

No. I suggested

./configure --prefix=/home/sbh/SW/Ruby/dev/

I never used --oldincludedir but the terse comment I get from  
./configure --help (C header files for non-gcc) suggests that this has  
nothing to do with installation locations. /home/sbh/SW/Ruby/prefix/  
is as good as /home/sbh/SW/Ruby/dev/, provided you decide once and for  
all where your installation location will be. Obviously, you have to  
include in your $PATH var the CORRECT location:  
/home/sbh/SW/Ruby/prefix/bin is different from  
/home/sbh/SW/Ruby/dev/bin. Always check with ruby -v to make sure you  
are using the right executable.

About the test failure I do not speculate. It has nothing to do with  
not finding the ruby.h include file.

> I do note that I have these ruby.h locations;
> 
> sbh@sbh-laptop-M18 ~/SW/Ruby $ find . -name ruby.h -exec ls -Alrt {} \;  
> -rw-r--r-- 1 sbh sbh 868 Sep 14 19:34 ./ruby/include/ruby.h  
> -rw-r--r-- 1 sbh sbh 77600 Sep 14 19:34 ./ruby/include/ruby/ruby.h  
> -rw-r--r-- 1 sbh sbh 868 Sep 14 19:34 ./prefix/include/ruby-2.4.0/ruby.h  
> -rw-r--r-- 1 sbh sbh 77600 Sep 14 19:34 ./prefix/include/ruby-2.4.0/ruby/ruby.h

That's correct. The copy from the source repository and the installed file.

> Gem::Ext::BuildError: ERROR: Failed to build gem native extension.
> 
> &nbsp;&nbsp;&nbsp;&nbsp;current directory:  
> /home/sbh/SW/Redmine/redmine/vendor/bundle/ruby/2.3.0/gems/redcarpet-3.3.4/ext/redcarpet  
> /usr/bin/ruby2.3 -r ./siteconf20160914-8576-9xhgmg.rb extconf.rb  
> mkmf.rb can't find header files for ruby at /usr/lib/ruby/include/ruby.h

As I already wrote, I know nothing about redmine. But from the above  
message, it is evident that redmine comes with ITS OWN copy of ruby  
(version 2.3.0). This means that the ruby interpreter you poured so  
much sweat in compiling is totally ignored by it.

At this point I conclude that the only people that could shed some  
light on your problem are those within the redmine community. Since  
they include their own version of ruby, their code is probably  
incompatible with anything more modern than 2.3. It must also be  
tightly coupled with those specific locations. Apparently the  
installation puts a ruby2.3 executable under /usr/bin (bad practice, I  
believe) but it does not make sure that the include files \*it\*  
requires are also installed.

Carlo

> **···**
>
> --  
> &nbsp;&nbsp;\* Se la Strada e la sua Virtu' non fossero state messe da parte,  
> \* K \* Carlo E. Prelz - fluido@fluido.as che bisogno ci sarebbe  
> &nbsp;&nbsp;\* di parlare tanto di amore e di rettitudine? (Chuang-Tzu)

---

<div class="post-metadata">

### Author: ![steve.sbh77](https://avatars.discourse-cdn.com/v4/letter/s/ba8739/32.png) [@steve.sbh77](https://rubytalk.org/u/steve.sbh77)
#### Post date: [25 September 2016 02:52 UTC](https://rubytalk.org/t/same-question-but-different-account-installing-ruby-to-desktop-folder-as-if-i-used-sudo-apt-get-install-rubyx-rubyx-dev/73799/11 "2016-09-25T02:52:35Z")

</div>

Aaahhhh... that all makes a lot of sense... A little disappointing too. Thanks also for verifying to  
me the four locations of ruby.h too.

Yes I was aware of the PATH of course and also noted that nothing was even put in oldincludedir  
anyways. 🙂

I guess I'll try the redmine community like you suggested.

Thanks for all the effort, time, and explanation; I appreciate it!

Best wishes,  
Brett

> **···**
>
> On 09/14/2016 11:08 PM, Carlo E. Prelz wrote:
> 
> > > ...  
> > > ...  
> > > Therefore using what you suggest;
> > > 
> > > ./configure --prefix=/home/sbh/SW/Ruby/prefix/ --oldincludedir=/home/sbh/SW/Ruby/oldincludedir/
> > 
> > No. I suggested
> > 
> > ./configure --prefix=/home/sbh/SW/Ruby/dev/
> > 
> > I never used --oldincludedir but the terse comment I get from  
> > ./configure --help (C header files for non-gcc) suggests that this has  
> > nothing to do with installation locations. /home/sbh/SW/Ruby/prefix/  
> > is as good as /home/sbh/SW/Ruby/dev/, provided you decide once and for  
> > all where your installation location will be. Obviously, you have to  
> > include in your $PATH var the CORRECT location:  
> > /home/sbh/SW/Ruby/prefix/bin is different from  
> > /home/sbh/SW/Ruby/dev/bin. Always check with ruby -v to make sure you  
> > are using the right executable.
> > 
> > About the test failure I do not speculate. It has nothing to do with  
> > not finding the ruby.h include file.
> > 
> > > I do note that I have these ruby.h locations;
> > > 
> > > sbh@sbh-laptop-M18 ~/SW/Ruby $ find . -name ruby.h -exec ls -Alrt {} \;  
> > > -rw-r--r-- 1 sbh sbh 868 Sep 14 19:34 ./ruby/include/ruby.h  
> > > -rw-r--r-- 1 sbh sbh 77600 Sep 14 19:34 ./ruby/include/ruby/ruby.h  
> > > -rw-r--r-- 1 sbh sbh 868 Sep 14 19:34 ./prefix/include/ruby-2.4.0/ruby.h  
> > > -rw-r--r-- 1 sbh sbh 77600 Sep 14 19:34 ./prefix/include/ruby-2.4.0/ruby/ruby.h
> > 
> > That's correct. The copy from the source repository and the installed file.
> > 
> > > Gem::Ext::BuildError: ERROR: Failed to build gem native extension.
> > > 
> > > &nbsp;&nbsp;&nbsp;&nbsp;current directory:  
> > > /home/sbh/SW/Redmine/redmine/vendor/bundle/ruby/2.3.0/gems/redcarpet-3.3.4/ext/redcarpet  
> > > /usr/bin/ruby2.3 -r ./siteconf20160914-8576-9xhgmg.rb extconf.rb  
> > > mkmf.rb can't find header files for ruby at /usr/lib/ruby/include/ruby.h
> > 
> > As I already wrote, I know nothing about redmine. But from the above  
> > message, it is evident that redmine comes with ITS OWN copy of ruby  
> > (version 2.3.0). This means that the ruby interpreter you poured so  
> > much sweat in compiling is totally ignored by it.
> > 
> > At this point I conclude that the only people that could shed some  
> > light on your problem are those within the redmine community. Since  
> > they include their own version of ruby, their code is probably  
> > incompatible with anything more modern than 2.3. It must also be  
> > tightly coupled with those specific locations. Apparently the  
> > installation puts a ruby2.3 executable under /usr/bin (bad practice, I  
> > believe) but it does not make sure that the include files \*it\*  
> > requires are also installed.
> > 
> > Carlo
