sys_id => System identity for systems where that
is difficult to determine automatically.
- cc => The compiler command, usually one of "cc",
+ cc => The C compiler command, usually one of "cc",
"gcc" or "clang". This command is normally
also used to link object files and
libraries into the final program.
+ cxx => The C++ compiler command, usually one of
+ "c++", "g++" or "clang++". This command is
+ also used when linking a program where at
+ least one of the object file is made from
+ C++ source.
cflags => Flags that are used at all times when
- compiling.
+ compiling C object files.
+ cxxflags => Flags that are used at all times when
+ compiling C++ object files. If unset, it
+ gets the same value as cflags.
defines => As an alternative, macro definitions may be
present here instead of in `cflags'. If
given here, they MUST be as an array of the
some options. In this case, the first
string in the list is the name of the build
scheme.
- Currently recognised build schemes are
- "mk1mf" and "unixmake" and "unified".
+ Currently recognised build scheme is "unified".
For the "unified" build scheme, this item
*must* be an array with the first being the
word "unified" and the second being a word
to be located in the source tree while files given through DEPEND are
expected to be located in the build tree)
+It's also possible to depend on static libraries explicitely:
+
+ DEPEND[foo]=libsomething.a
+ DEPEND[libbar]=libsomethingelse.a
+
+This should be rarely used, and care should be taken to make sure it's
+only used when supported. For example, native Windows build doesn't
+support build static libraries and DLLs at the same time, so using
+static libraries on Windows can only be done when configured
+'no-shared'.
+
For some libraries, we maintain files with public symbols and their
slot in a transfer vector (important on some platforms). It can be
declared like this:
"libbar" everywhere?), it does make sense when it can be used
conditionally. See a little further below for an example.
+In some cases, it's desirable to include some source files in the
+shared form of a library only:
+
+ SHARED_SOURCE[libfoo]=dllmain.c
+
For any file to be built, it's also possible to tell what extra
include paths the build of their source files should use:
build file template to define exactly how those command lines should
be handled, how the output is captured and so on.
+Sometimes, the generator file itself depends on other files, for
+example if it is a perl script that depends on other perl modules.
+This can be expressed using DEPEND like this:
+
+ DEPEND[asm/something.pl]=../perlasm/Foo.pm
+
+There may also be cases where the exact file isn't easily specified,
+but an inclusion directory still needs to be specified. INCLUDE can
+be used in that case:
+
+ INCLUDE[asm/something.pl]=../perlasm
+
NOTE: GENERATE lines are limited to one command only per GENERATE.
As a last resort, it's possible to have raw build file lines, between
echo "/* haha */" > haha.h
ENDRAW[Makefile(unix)]
-The word withing square brackets is the build_file configuration item
+The word within square brackets is the build_file configuration item
or the build_file configuration item followed by the second word in the
build_scheme configuration item for the configured target within
parenthesis as shown above. For example, with the following relevant
build hoho.h: echo "/* hoho */" > hoho.h
ENDRAW[build.ninja(unix)]
+Should it be needed because the recipes within a RAW section might
+clash with those generated by Configure, it's possible to tell it
+not to generate them with the use of OVERRIDES, for example:
+
+ SOURCE[libfoo]=foo.c bar.c
+
+ OVERRIDES=bar.o
+ BEGINRAW[Makefile(unix)]
+ bar.o: bar.c
+ $(CC) $(CFLAGS) -DSPECIAL -c -o $@ $<
+ ENDRAW[Makefile(unix)]
+
See the documentation further up for more information on configuration
items.
generatesrc(src => "PATH/TO/tobegenerated",
generator => [ "generatingfile", ... ]
+ generator_incs => [ "INCL/PATH", ... ]
+ generator_deps => [ "dep1", ... ]
+ generator => [ "generatingfile", ... ]
+ incs => [ "INCL/PATH", ... ],
deps => [ "dep1", ... ],
intent => one of "libs", "dso", "bin" );
expected to be the file to generate from.
generatesrc() is expected to analyse and figure out
exactly how to apply that file and how to capture
- the result. 'deps' is a list of explicit
- dependencies. 'intent' indicates what the generated
- file is going to be used for.
+ the result. 'generator_incs' and 'generator_deps'
+ are include directories and files that the generator
+ file itself depends on. 'incs' and 'deps' are
+ include directories and files that are used if $(CC)
+ is used as an intermediary step when generating the
+ end product (the file indicated by 'src'). 'intent'
+ indicates what the generated file is going to be
+ used for.
src2obj - function that produces build file lines to build an
object file from source files and associated data.
projects / openssl.git / blobdiff