'DEPEND[]=file.h' becomes a special way to say that 'file.h' must be
generated before anything else is built.  It's likely that a number
of source files depend on these header files, this provides a simple
way to make sure they are always generated even it the dependency data
hasn't been added to the build file yet.
Reviewed-by: NRich Salz <rsalz@openssl.org>

Reviewed-by: NRichard Levitte <levitte@openssl.org>

The directories for the final products were never registered, it was
plain luck that intermediary files were in the same place and
registered the directory anyway.

Also, scripts are generated directly from source (binaries go through
intermadiary object files), so we need to explicitely make sure to
avoid registering the source directory unless it's an in source
build.
Reviewed-by: NAndy Polyakov <appro@openssl.org>
Reviewed-by: NRich Salz <rsalz@openssl.org>

Previous build scheme allowed building just the stuff in one
subdirectory, like this:

    make -C crypto/aes

Because the unified only has a top-level Makefile, this is not
possible with it.  This change adds a replacement where each directory
we have something to build in becomes a target in its own right,
allowing building something like this:

    make crypto/aes

The exception is the directory test, because we already have such a
target.
Reviewed-by: NStephen Henson <steve@openssl.org>

Reviewed-by: NRich Salz <rsalz@openssl.org>

Reviewed-by: NRichard Levitte <levitte@openssl.org>

This applies when building out-of-source.

RT#4486

NOTE: we can't do the same for Unix, as Unix make doesn't handle this
type of issue.  Also, directory specs are much less likely to have
spaces on Unix...
Reviewed-by: NMatt Caswell <matt@openssl.org>

Someone wants to configure like this:

    PERL="/usr/bin/env perl" ./config

The end goal is to get that in the #! line of CA.pl and a few other
scripts.  That works well already, but in the Makefile, there were a
few lines looking like this:

    PERL=$(PERL) $(PERL) whatever.pl ...

Those need some quoting.

RT#4311
Reviewed-by: NMatt Caswell <matt@openssl.org>

Reviewed-by: NRich Salz <rsalz@openssl.org>

Add Configure generated header files to $unified_info{generate}.  This
makes sure the build files will pick them up with the rest for the
GENERATED macro, and thereby make sure they get cleaned away by 'make
clean'
Reviewed-by: NRich Salz <rsalz@openssl.org>

Reviewed-by: NRich Salz <rsalz@openssl.org>

Reviewed-by: NRich Salz <rsalz@openssl.org>

Reviewed-by: NRich Salz <rsalz@openssl.org>

Reviewed-by: NRich Salz <rsalz@openssl.org>

Reviewed-by: NMatt Caswell <matt@openssl.org>

Reviewed-by: NRich Salz <rsalz@openssl.org>

Reviewed-by: NRich Salz <rsalz@openssl.org>

the fact that it's community-supported target.
Reviewed-by: NRich Salz <rsalz@openssl.org>

Reviewed-by: NRichard Levitte <levitte@openssl.org>

RT#2558
Reviewed-by: NTim Hudson <tjh@openssl.org>

Some setups use links inside .git directory and make clean should not
remove them to avoid breaking git meta-information.
Signed-off-by: NCristian Stoica <cristian.stoica@nxp.com>

CLA: none; trivial
Reviewed-by: NMatt Caswell <matt@openssl.org>
Reviewed-by: NRichard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1078)

- "/Ox /O2 /Ob2" get's reduced to "/O2", the reason being:

    /Ox = /Ob2 /Og /Oi /Ot /Oy /Gs
    /O2 = /Ob2 /Og /Oi /Ot /Oy /Gs /GF /Gy

- apps/openssl.cnf gets installed.

- always delete files quietly, as they might not be there.
Reviewed-by: NMatt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1075)

Reviewed-by: NRich Salz <rsalz@openssl.org>

Reviewed-by: NRich Salz <rsalz@openssl.org>

DJGPP is a 3rd party configuration, we rely entirely on the OpenSSL to
help us fine tune and test.  Therefore, it's moved to its own config.
Reviewed-by: NAndy Polyakov <appro@openssl.org>

Reviewed-by: NRichard Levitte <levitte@openssl.org>

- some Perl versions are allergic to missing ';';
- don't stop if del fails;
- omit unused environment variable;
Reviewed-by: NStephen Henson <steve@openssl.org>

Reviewed-by: NAndy Polyakov <appro@openssl.org>

They were using the wrong variables.
Reviewed-by: NAndy Polyakov <appro@openssl.org>

Reviewed-by: NRichard Levitte <levitte@openssl.org>

With Unixly Makefiles as well as with nmake, make variables are
transferred to the shell running the commands as envinronment
variables.  This principle doesn't apply with MMS, so we must
explicitely define VERBOSE as commands when it's needed.
Reviewed-by: NRich Salz <rsalz@openssl.org>

If environment variables are not explanded early enough, expanded
strings are passed with single backslash to C compiler, e.g.
C:\Program Files, which effectively results in OpenSSL looking for
engines and certificates in C:Program Files.
Reviewed-by: NRichard Levitte <levitte@openssl.org>

Reviewed-by: NRichard Levitte <levitte@openssl.org>

Some non-Gnu compilers interpret -E -P combination differently.
some prioritize -E over -P, others -P over -E (in which case .i
file is generated and sometimes truncated because of redirection).
Reviewed-by: NRichard Levitte <levitte@openssl.org>

Reviewed-by: NRichard Levitte <levitte@openssl.org>

As per a team decision back in 2014.
Reviewed-by: NStephen Henson <steve@openssl.org>

Reviewed-by: NRich Salz <rsalz@openssl.org>

Reviewed-by: NRich Salz <rsalz@openssl.org>

When compiling all other C files, rely on the compiler to
automatically pick up the name translation information from the header
files __DECC_INCLUDE_{PRO,EPI}LOGUE.H.
Reviewed-by: NAndy Polyakov <appro@openssl.org>

Script obj_dat.pl depends on file obj_mac.h generated by script objects.pl
Reviewed-by: NRichard Levitte <levitte@openssl.org>
Reviewed-by: NRich Salz <rsalz@openssl.org>