rockbox/rbutil/libtools.make, branch wolf3d

Fix linking with C++ files.

2016-12-16T20:50:36+00:00

When linking with C++ files the linker also needs to link against the C++
libraries. This is done automatically when invoking the compiler upon linking.
Since we don't want C++ dependencies on C-only projects we check if we actually
have C++ files and use either the C or C++ compiler.

Rename CFLAGS since it's now used for both C and C++ compiler and add dedicated
CFLAGS, CXXFLAGS and LDFLAGS variables.

Change-Id: I9cc068a8038f21e8fd96b20173a8f790e6ab4b6e

Support C++ in libtools.make and rewrite dependency handling.

2016-12-16T18:46:08+00:00

- Change suffix of objects and depencency files to keep the original file
  suffix. This makes it easy to distinguish between C and C++ files when
  building and avoids implicit make rules trying to build in a way we don't
  want to.
- Implicitly handle dependencies instead of having an explicit rule. Simplifies
  things a bit.
- Support C++ files by adding an explicit rule for them. With keeping the
  original file suffixes this becomes quite simple.
  To use C++ files simply add them to SOURCES (or LIBSOURCES).

Change-Id: I22c56a6e153e281cfa675e91ad4a70fd18e2c43c

Don't add LIBSOURCES to SOURCES.

2016-12-16T18:46:07+00:00

Split source files for library and stand-alone binary and use library as
dependency when building the stand-alone binary. This avoids dependencies
getting added multiple times.

Remove outdated RBARCH handling, we always create fat binaries on OS X these
days.

Change-Id: Ia15a731296edcbe90869a1bf66dda2c3d6c7e317

OS X: detect clang and build for x86 target only.

2014-03-20T21:26:24+00:00

Newer versions of Xcode / OS X don't support PPC code anymore and replace gcc
with clang. When clang is detected assume we want to build for the default
architecture only and change the minimum OS X version to 10.5.

Change-Id: I5843fa9bb3d957ec6f0a537e857608ad99c31517

Fix rm function on Windows once more.

2014-01-05T16:08:50+00:00

Windows del doesn't handle a non-existing folder gracefully, so check for
existence first.

Change-Id: I9c401f3f3a3e1e01b80d29e335256fbf3db22d35

Fix rm function on Windows.

2014-01-05T16:05:11+00:00

Windows del doesn't handle paths with / as separators, need to convert them
first.

Change-Id: Idb3efa96167aec5666517feabab67385ebd2db1a

Fix rebuilding of libs on OS X.

2014-01-05T15:55:23+00:00

OS X ar operates on fat libaries. In this case updating the library isn't
possible and when those change ar will only return an error. Remove the output
file prior to running ar to work around this limitation.

Change-Id: I7ebc66efd092a8e6037ae86a3658afe6b4da777f

Move LDOPTS to the end of the linker call.

2013-11-12T21:51:59+00:00

Command line order is important with newer gcc versions. mkzenboot extends
LDOPTS but the linker would ignore that since no object using it has been
mentioned on the command line. Moving it to the end should fix this.

Change-Id: I081e86fa88f95dba6077a50f2b4315bf3a805ae5

Treat arch flags separately when building libraries.

2013-06-09T17:43:37+00:00

On OS X we're passing -arch twice which dependency generation doesn't like.
Since we don't have dependencies that differ between architectures simply don't
add them during dependency generation.

Change-Id: Ie3d58bf9af31edcacb88345c7debf39eb798e302

Implement dependency generation in libtools.make.

2013-05-11T18:34:12+00:00

Automatically generate dependency files for all sources so changes in headers
are picked up automatically. Use one dependency file for each source file,
since that allows to create them without using external tools (except the
compiler of course).

Change-Id: I246c1ceb525692547af22a2e32c4bab0c11507e1