derhass reports that SDL on Raspbian provokes a warning from
-Wuseless-cast. Add a test that will report -Wuseless-cast as unusable
when SDL causes this warning. Developers on Raspbian will not get the
benefit of -Wuseless-cast, but their build will succeed.
Reported-by: derhass <https://github.com/dxx-rebirth/dxx-rebirth/issues/257>
Extended identifiers are convenient when supported, but derhass reports
that the latest stable gcc on Raspbian stable fails the test for
mandatory extended identifier support. Replace the Cxx11RequiredFeature
test for extended identifiers with an SConf test to selectively enable
-fextended-identifiers.
Reported-by: derhass <https://github.com/dxx-rebirth/dxx-rebirth/issues/254>
Fixes: a8a41aa2ff ("Move git version into Python class")
Previously, raspberrypi mode forced DXX_WORDS_NEED_ALIGNMENT on and any
other mode forced it off. Add a specific user setting for
DXX_WORDS_NEED_ALIGNMENT. Set its default as bool(raspberrypi) to
preserve the previous special case.
Rename symbol WORDS_NEED_ALIGNMENT to DXX_WORDS_NEED_ALIGNMENT to show that it is a DXX
symbol, not one inherited from a library.
This is a mostly automated transform, but the changes to SConstruct were
manual.
git grep -wl WORDS_NEED_ALIGNMENT -- '*.h' '*.cpp' | xargs sed -i -e 's/^\s*#ifdef \(WORDS_NEED_ALIGNMENT\)\>/#if DXX_\1/' -e 's/\s*#\(el\)\?if \(.*\)defined(\(WORDS_NEED_ALIGNMENT\))/#\1if \2DXX_\3/' -e 's/^\s*#ifndef \(WORDS_NEED_ALIGNMENT\)\>/#if !DXX_\1/'
Rename symbol WORDS_BIGENDIAN to DXX_WORDS_BIGENDIAN to show that it is a DXX
symbol, not one inherited from a library.
This is a mostly automated transform, but the changes to SConstruct were
manual.
git grep -wl WORDS_BIGENDIAN -- '*.h' '*.cpp' | xargs sed -i -e 's/^\s*#ifdef \(WORDS_BIGENDIAN\)\>/#if DXX_\1/' -e 's/\s*#\(el\)\?if \(.*\)defined(\(WORDS_BIGENDIAN\))/#\1if \2DXX_\3/' -e 's/^\s*#ifndef \(WORDS_BIGENDIAN\)\>/#if !DXX_\1/'
Test DXX_HAVE_CONSTEXPR_UNION_CONSTRUCTOR probes for a bug present in
<=gcc-4.7.x. Rebirth now rejects <=gcc-4.8.x for other reasons, so all
supported gcc versions pass test DXX_HAVE_CONSTEXPR_UNION_CONSTRUCTOR.
Remove the test.
Rename symbol MAX_HATS_PER_JOYSTICK to DXX_MAX_HATS_PER_JOYSTICK
to show that it is a DXX symbol, not one inherited from a library.
git grep -lzw MAX_HATS_PER_JOYSTICK -- SConstruct '*.h' '*.cpp' | xargs -0 sed -i -e 's/\<MAX_HATS_PER_JOYSTICK\>/DXX_&/g'
Rename symbol MAX_BUTTONS_PER_JOYSTICK to DXX_MAX_BUTTONS_PER_JOYSTICK
to show that it is a DXX symbol, not one inherited from a library.
git grep -lzw MAX_BUTTONS_PER_JOYSTICK -- SConstruct '*.h' '*.cpp' | xargs -0 sed -i -e 's/\<MAX_BUTTONS_PER_JOYSTICK\>/DXX_&/g'
Rename symbol MAX_AXES_PER_JOYSTICK to DXX_MAX_AXES_PER_JOYSTICK to show
that it is a DXX symbol, not one inherited from a library.
git grep -lzw MAX_AXES_PER_JOYSTICK -- SConstruct '*.h' '*.cpp' | xargs -0 sed -i -e 's/\<MAX_AXES_PER_JOYSTICK\>/DXX_&/g'
Rename symbol MAX_JOYSTICKS to DXX_MAX_JOYSTICKS to show that it is a DXX
symbol, not one inherited from a library.
git grep -lzw MAX_JOYSTICKS -- SConstruct '*.h' '*.cpp' | xargs -0 sed -i -e 's/\<MAX_JOYSTICKS\>/DXX_&/g'
Rename symbol OGL to DXX_USE_OGL to show that it is a DXX
symbol, not one inherited from a library. Move it to dxxsconf.h to
shorten the command line.
This is a mostly automated transform, but the changes to SConstruct were
manual.
git grep -lzw OGL -- '*.h' '*.cpp' | xargs -0 sed -i -e 's/\(\s*#\s*if\)def\s*OGL/\1 DXX_USE_OGL/' -e 's/\(\s*#\s*if\)ndef OGL/\1 !DXX_USE_OGL/' -e 's/\(\s*#\s*if !\?\)defined(OGL)/\1DXX_USE_OGL/'
Rename symbol OGLES to DXX_USE_OGLES to show that it is a DXX
symbol, not one inherited from a library. Move it to dxxsconf.h to
shorten the command line.
This is a mostly automated transform, but the changes to SConstruct were
manual.
git grep -lzw OGLES -- '*.h' '*.cpp' | xargs -0 sed -i -e 's/\(\s*#\s*if\)def\s*OGLES/\1 DXX_USE_OGLES/' -e 's/\(\s*#\s*if\)ndef OGLES/\1 !DXX_USE_OGLES/'
Previously this could be achieved by setting the install path to @executable_path/../Frameworks/<path to framework> for each framework or library, but for Mac OS X 10.5 onwards, these frameworks (namely SDL and SDL_mixer) are set by default to install to @rpath for greater flexibility. @rpath is then set by the binary, in this case DXX-Rebirth to @loader_path/../Frameworks via SCons.
On Mac OS X it is common practice to distribute applications with any frameworks or libraries specific to that application within the application bundle.
clang on OS X incorrectly diagnoses mistakes in Apple system headers
even when -Wsystem-headers is not specified. Move -Wold-style-cast from
the forced CXXFLAGS section to an SConf test that includes one of the
deficient headers. This should cause SConf to declare OS X clang as
unable to use -Wold-style-cast, which is necessary to avoid spurious
failures when including Apple headers that use old style casts.
The legacy UDP tracker does not need either curl or jsoncpp.
The new HTTP tracker requires both. Add tests for both, guarded by
`use_tracker`. Force `use_tracker` to False for now. When the HTTP
tracker is made active, remove the assignment so that use_tracker=1 will
enable the new tests.
Rename symbol EDITOR to DXX_USE_EDITOR to show that it is a DXX
symbol, not one inherited from a library. Move it to dxxsconf.h to
shorten the command line.
This is a mostly automated transform, but the changes to SConstruct were
manual.
git grep -wl EDITOR -- '*.h' '*.cpp' | xargs sed -i -e 's/^\s*#ifdef \(EDITOR\)\>/#if DXX_USE_\1/' -e 's/\s*#\(el\)\?if \(.*\)defined(\(EDITOR\))/#\1if \2DXX_USE_\3/' -e 's/^\s*#ifndef \(EDITOR\)\>/#if !DXX_USE_\1/'
Rename symbol IPv6 to DXX_USE_IPv6 to show that it is a DXX
symbol, not one inherited from a library. Move it to dxxsconf.h to
shorten the command line.
This is a mostly automated transform, but the changes to SConstruct were
manual.
git grep -wl IPv6 -- '*.h' '*.cpp' | xargs sed -i -e 's/^\s*#ifdef \(IPv6\)$/#if DXX_USE_\1/' -e 's/\s*#\(el\)\?if \(.*\)defined(\(IPv6\))/#\1if \2DXX_USE_\3/'
Rename symbol USE_UDP to DXX_USE_UDP to show that it is a DXX
symbol, not one inherited from a library. Move it to dxxsconf.h to
shorten the command line.
This is a mostly automated transform, but the changes to SConstruct were
manual.
git grep -l USE_UDP -- '*.h' '*.cpp' | xargs sed -i -e 's/^\s*#ifdef \(USE_UDP\)$/#if DXX_\1/' -e 's/\s*#\(el\)\?if \(.*\)defined(\(USE_UDP\))/#\1if \2DXX_\3/'
Rename symbol USE_TRACKER to DXX_USE_TRACKER to show that it is a DXX
symbol, not one inherited from a library. Move it to dxxsconf.h to
shorten the command line.
This is a mostly automated transform, but the changes to SConstruct were
manual.
git grep -l USE_TRACKER -- '*.h' '*.cpp' | xargs sed -i -e 's/^#ifdef \(USE_TRACKER\)$/#if DXX_\1/' -e 's/#\(el\)\?if \(.*\)defined(\(USE_TRACKER\))/#\1if \2DXX_\3/'
Rename symbol USE_SDLMIXER to DXX_USE_SDLMIXER to show that it is a DXX
symbol, not one inherited from a library. Move it to dxxsconf.h to
shorten the command line.
This is a mostly automated transform, but the changes to SConstruct and
inferno.cpp were manual.
git grep -l USE_SDLMIXER -- '*.h' '*.cpp' | xargs sed -i -e 's/^#ifdef \(USE_SDLMIXER\)$/#if DXX_\1/' -e 's/#\(el\)\?if \(.*\)defined(\(USE_SDLMIXER\))/#\1if \2DXX_\3/'
clang does not understand -Wuseless-cast. Passing -Wuseless-cast to
clang causes clang to fail the compile. Resolve this by adding an SConf
test for -Wuseless-cast instead of adding it unconditionally. It cannot
be put in the compiler preferred options tuple since it must be set
before the test for whether casting a ptrdiff to int is useless.
The folded form combined multiple targets into one, which is not the
desired result.
'''
unfolded
l=['gcc5,', 'mingw5,'] e='gcc5,' p=('gcc5', '')
l=['gcc5,', 'mingw5,'] e='mingw5,' p=('mingw5', '')
folded
l=['gcc5,', 'mingw5,'] e='mingw5,' p=('gcc5', '', 'mingw5', '')
'''
import itertools
l = ['gcc5,', 'mingw5,']
print('unfolded')
for e in l:
for p in itertools.product(*[v.split('+') for v in e.split(',')]):
print("l=%r e=%r p=%r" % (l, e, p))
print('folded')
for p in itertools.product(*[
v.split('+') \
for e in l \
for v in e.split(',') \
]):
print("l=%r e=%r p=%r" % (l, e, p))
Field width conversion `.*` always takes an `int`.
On Win32, casting `long` to `int` triggers a `-Wuseless-cast` warning.
Omitting the cast works correctly.
On Linux/amd64, casting `long` to `int` works correctly.
Omitting the cast triggers a `-Wformat` warning.
Add a macro that conditionally expands to `static_cast<int>` or to ``,
as necessary for the target platform.
