[openssl-users] 'makedepend' in openssl builds: clarify need and correct usage

PGNet Dev

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Mar 10, 2016, 9:53:21 AM3/10/16

to

I'm building openssl 1.0.2g on linux64.

After

./configure ...

I'm prompted

Since you've disabled or enabled at least one algorithm, you need to do
the following before building:

make depend

Exec'ing the 'make depend' stage returns lots of warnings,

make depend
making depend in crypto...
make[1]: Entering directory '/usr/local/src/openssl/openssl-1.0.2g/crypto'
makedepend: warning: cryptlib.c (reading /usr/include/stdlib.h, line
32): cannot find include file "stddef.h"
not in ./stddef.h
not in ../stddef.h
not in ../include/stddef.h
not in /usr/include/stddef.h
makedepend: warning: /usr/include/time.h includes
/usr/include/bits/types.h more than once!
Already have
/usr/include/bits/types.h
makedepend: warning: /usr/include/time.h includes
/usr/include/bits/types.h more than once!
Already have
/usr/include/bits/types.h
makedepend: warning: /usr/include/time.h includes
/usr/include/bits/types.h more than once!
Already have
/usr/include/bits/types.h
makedepend: warning: cryptlib.c (reading /usr/include/sys/types.h,
line 146): cannot find include file "stddef.h"
not in ./stddef.h
not in ../stddef.h
not in ../include/stddef.h
not in /usr/include/stddef.h
makedepend: warning: cryptlib.c (reading /usr/include/alloca.h, line
24): cannot find include file "stddef.h"
not in ./stddef.h
not in ../stddef.h
not in ../include/stddef.h
not in /usr/include/stddef.h
...

On the distro, stddef.h is available at

/usr/include/linux/stddef.h
/usr/lib64/gcc/x86_64-suse-linux/4.8/include/stddef.h
/usr/lib64/gcc/x86_64-suse-linux/5/include/stddef.h

Reading wiki & reports at openssl, there's confusing, if not
conflicting, advice.

Must use it,

(1) https://wiki.openssl.org/index.php/Compilation_and_Installation
Dependencies

If you are prompted to run make depend, then you must do so. Its not
just for developers who are updating sources. Its required to update the
standard distribution once configuration options change.

Don't need it

(2) https://wiki.openssl.org/index.php/Compilation_and_Installation
Compilation
After configuring the library, you should run make. If prompted,
there's usually no need to make depend since you are building from a
clean download.

(3)
https://rt.openssl.org/Ticket/Display.html?id=3566&user=guest&pass=guest
"Obviously this needs fixing but as a workaround: if you're building
from scratch (or after "make clean") it should compile fine with without
doing "make depend".

Steve.
--
Dr Stephen N. Henson. OpenSSL project core developer."

Re: 'makedepend',

https://en.wikipedia.org/wiki/Makedepend
makedepend was developed as part of MIT's Project Athena. It was used
extensively in building X11 and ancillary packages, but has since become
superseded by the dependency generation facilities of various compilers,
and is now used primarily as a worst-case fallback, e.g. by depcomp and
GNU Automake.

Further, a quick check (https://www.google.com/search?q=makedepend+stddef
) shows that there's a long history (unresolved?) re: not finding the
sys's stddef.h

Digging around some more, I find that virtually the same issue was
raised on openssl-dev in Apr 2015,

https://mta.openssl.org/pipermail/openssl-dev/2015-April/001263.html
[openssl-dev] `make depend`, advised by ./config, fails to find
stddef.h in system/compiler path. old bug (#3566) says don't bother with
`make depend`? true, or another bug?

with no reply at all.

What, then, IS the current need for 'makedepend' in openssl, and what,
exactly, is the correct/recommended usage for its use in an openssl build?
--
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PGNet Dev

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Mar 10, 2016, 10:04:33 AM3/10/16

to

Actually, the actual admonition is more emphatic

> I'm prompted
>
> Since you've disabled or enabled at least one algorithm, you need to do
> the following before building:
>
> make depend

"

Configured for linux-x86_64.

*** Because of configuration changes, you MUST do the following before
*** building:

make depend

lists

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Mar 14, 2016, 11:19:34 AM3/14/16

to

On 03/10/2016 03:52 PM, PGNet Dev wrote:
> I'm building openssl 1.0.2g on linux64.
>
> After
>
> ./configure ...
>

Did you mean "./config ..."?

> I'm prompted
>
> Since you've disabled or enabled at least one algorithm, you need
> to do
> the following before building:
>
> make depend
>

> Exec'ing the 'make depend' stage returns lots of warnings,
>
> make depend
> making depend in crypto...
> make[1]: Entering directory
> '/usr/local/src/openssl/openssl-1.0.2g/crypto'
> makedepend: warning: cryptlib.c (reading
> /usr/include/stdlib.h, line 32): cannot find include file "stddef.h"
> not in ./stddef.h

> [...]

>
> On the distro, stddef.h is available at
>
> /usr/include/linux/stddef.h
> /usr/lib64/gcc/x86_64-suse-linux/4.8/include/stddef.h
> /usr/lib64/gcc/x86_64-suse-linux/5/include/stddef.h
>
>
> Reading wiki & reports at openssl, there's confusing, if not
> conflicting, advice.
>
> Must use it,
>
> (1) https://wiki.openssl.org/index.php/Compilation_and_Installation
> Dependencies
>
> If you are prompted to run make depend, then you must do so.
> Its not just for developers who are updating sources. Its required to
> update the standard distribution once configuration options change.
>

In your specific case, it seems that you have disabled a protocol or
cipher or whatever, in other words you have changed the default options.
I guess the "..." in your command means just that you are omitting some
options.
So in such case you need "make depend". What is said in point (1) is
correct.
For instance, if you compile some not-latest OpenSSL with -nossl2 (this
is the current hype), compilation will fail unless you issue "make depend".
Sorry but I don't exactly understand how you are quoting the rest, so I
cannot see exactly what is that you find confusing.

> Don't need it
>
> (2) https://wiki.openssl.org/index.php/Compilation_and_Installation
> Compilation
> After configuring the library, you should run make. If
> prompted, there's usually no need to make depend since you are
> building from a clean download.
>
> (3)
> https://rt.openssl.org/Ticket/Display.html?id=3566&user=guest&pass=guest
> "Obviously this needs fixing but as a workaround: if
> you're building from scratch (or after "make clean") it should compile
> fine with without doing "make depend".
>
>
>

> Re: 'makedepend',
>
> https://en.wikipedia.org/wiki/Makedepend
> makedepend was developed as part of MIT's Project Athena. It
> was used extensively in building X11 and ancillary packages, but has
> since become superseded by the dependency generation facilities of
> various compilers, and is now used primarily as a worst-case fallback,
> e.g. by depcomp and GNU Automake.
>
> Further, a quick check (https://www.google.com/search?q=makedepend+stddef
> ) shows that there's a long history (unresolved?) re: not finding the
> sys's stddef.h
>
> Digging around some more, I find that virtually the same issue was
> raised on openssl-dev in Apr 2015,
>
> https://mta.openssl.org/pipermail/openssl-dev/2015-April/001263.html
> [openssl-dev] `make depend`, advised by ./config, fails to find
> stddef.h in system/compiler path. old bug (#3566) says don't bother
> with `make depend`? true, or another bug?
>
> with no reply at all.
>
> What, then, IS the current need for 'makedepend' in openssl, and what,
> exactly, is the correct/recommended usage for its use in an openssl
> build?

PGNet Dev

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Mar 14, 2016, 11:27:08 AM3/14/16

to

On 03/14/2016 08:24 AM, lists wrote:
> Did you mean "./config ..."?

yep.

>> Must use it,
>>
>> (1) https://wiki.openssl.org/index.php/Compilation_and_Installation
>> Dependencies
>>
>> If you are prompted to run make depend, then you must do so.

Which I currently attempt to do, but get the reported errors about not
finding the stddef.h include etc.

> I cannot see exactly what is that you find confusing.

That the wiki says you don't need to,

"Compilation

After configuring the library, you should run make. If prompted,
there's usually no need to make depend since you are building from a
clean download."

^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

PGNet Dev

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Mar 14, 2016, 11:59:37 AM3/14/16

to

On 03/14/2016 08:26 AM, PGNet Dev wrote:
> Which I currently attempt to do, but get the reported errors about not finding the stddef.h include etc.

Specifically,

cd test
rm -rf *
wget https://www.openssl.org/source/openssl-1.0.2g.tar.gz
tar zxvf openssl-1.0.2g.tar.gz
cd openssl-1.0.2g

./config --openssldir=/home/work/sslTEST --libdir=lib64 \
threads shared -D_GNU_SOURCE -DPURIFY -DTERMIO -fno-common
-Wl,-rpath=/home/work/sslTEST/lib64 -Wa,--noexecstack
-Wl,-z,relro,-z,now -Wall

...

Configured for linux-x86_64.

*** Because of configuration changes, you MUST do the following before
*** building:

make depend

make depend
making depend in crypto...
make[1]: Entering directory

'/home/work/openssl-1.0.2g/test/openssl-1.0.2g/crypto'

makedepend: warning: cryptlib.c (reading /usr/include/stdlib.h, line
32): cannot find include file "stddef.h"
not in ./stddef.h

not in ../stddef.h
not in ../include/stddef.h
not in /usr/include/stddef.h
makedepend: warning: /usr/include/time.h includes
/usr/include/bits/types.h more than once!
Already have
/usr/include/bits/types.h
makedepend: warning: /usr/include/time.h includes
/usr/include/bits/types.h more than once!
Already have
/usr/include/bits/types.h
makedepend: warning: /usr/include/time.h includes
/usr/include/bits/types.h more than once!
Already have
/usr/include/bits/types.h
makedepend: warning: cryptlib.c (reading /usr/include/sys/types.h,

line 146): cannot find include file "stddef.h"
not in ./stddef.h

not in ../stddef.h
not in ../include/stddef.h
not in /usr/include/stddef.h
makedepend: warning: cryptlib.c (reading /usr/include/alloca.h, line

24): cannot find include file "stddef.h"
not in ./stddef.h