There are rare cases when an object file will only be used when
building a shared library. To enable this, we introduce
SHARED_SOURCE:
SHARED_SOURCE[libfoo]=dllmain.c
Reviewed-by: Andy Polyakov <appro@openssl.org>
In some cases, one might want to generate some source files from
others, that's done as follows:
GENERATE[foo.s]=asm/something.pl $(CFLAGS)
GENERATE[bar.s]=asm/bar.S
The value of each GENERATE line is a command line or part of it.
Configure places no rules on the command line, except the the first
item muct be the generator file. It is, however, entirely up to the
build file template to define exactly how those command lines should
be handled, how the output is captured and so on.
Reviewed-by: Rich Salz <rsalz@openssl.org>
This takes us away from the idea that we know exactly how our static
libraries are going to get used. Instead, we make them available to
build shareable things with, be it other shared libraries or DSOs.
On the other hand, we also have greater control of when the shared
library cflags. They will never be used with object files meant got
binaries, such as apps/openssl or test/test*.
With unified, we take this a bit further and prepare for having to
deal with extra cflags specifically to be used with DSOs (dynamic
engines), libraries and binaries (applications).
Reviewed-by: Rich Salz <rsalz@openssl.org>
.d (.MMS in the VMS world) files with just dependencies are built from
exactly the same conditions as the object files. Therefore, the rules
for them can be built at the same time as the rules for the
corresponding object files.
This removes the requirement for a src2dep function in the build file
templates, and for common.tmpl to call it. In the end, the existence
of depend files is entirely up to the build file.
Reviewed-by: Rich Salz <rsalz@openssl.org>
This documents describes the three steps from build.info files via the
%unified_info database to the build-file templates, along with some
examples showing how the data gets processed along the way.
Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
