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Change the default target optimisation value so
it does not conflict with gcc optimization level
Signed-off-by: Paul Jones <paul@pauljones.id.au>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
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Having a BR2_NEEDS_GETTEXT option, as introduced by
54d64798e1e14b526c3cc1142961972cff9f1e8a isn't sufficient to express
the different kind of dependencies on gettext.
This commit, based on an idea by Peter Korsgaard, introduces two
different options :
* BR2_NEEDS_GETTEXT, which is true as soon as the toolchain doesn't
provide gettext itself (i.e, when the toolchain is uClibc based, be
it an internal or external toolchain)
* BR2_NEEDS_GETTEXT_IF_LOCALE, which is true when the toolchain
doesn't provide gettext *and* locale support has been enabled in
Buildroot.
A following commit adds some documentation that details how these
configuration variables should be used by packages.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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When using an external toolchain that uses the glibc or eglibc C
libraries, compiling a separate gettext and libintl is not needed and
is even a source of confusion, causing build failures. These build
failures are due to the fact that when libintl is compiled, it
replaces the C library libintl.h by its own, which does #define
gettext libintl_gettext. Then, when packages want to use gettext,
autoconf realize that gettext is available in the C library and
therefore do not add -lintl to the LDFLAGS, causing the build failure
because the program has been compiled to use libintl_gettext but this
function is not available.
Therefore, we should only use gettext if a uClibc internal toolchain
or a uClibc external toolchain. If an external glibc toolchain is
used, gettext shouldn't be used.
In order to implement that, we introduce the BR2_NEEDS_GETTEXT option,
which is hidden to the user, and whose value is computed automatically
from the rest of the configuration.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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The option is marked broken since october 2009, and even the uClibc
configuration help text says that using pregenerated locales is highly
discouraged.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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Has been marked as broken for more than 1 year, with no indication
that anyone cares, and it needs a bunch of special handling.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
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In uClibc, NPTL support does not exist in the 0.9.30 branch, that we
are using in Buildroot. It is only available in the uClibc daily
snapshot, extracted from uClibc master branch.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
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The BR2_TOOLCHAIN_SOURCE option is removed in a future commit.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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Introduce BR2_PREFER_SOFT_FLOAT and enable it for arm, avr32 and mips,
and use it to enable soft float support by default for those archs.
This way people automatically get the correct floating point mode when
running make menuconfig for the first time (E.G. without a .config) and
changing the arch from i386 to arm/avr32/mips.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
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There's still no suitable tarball available on uclibc.org, so better
hide the option for now.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
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BR2_UCLIBC_PROGRAM_INVOCATION is a toolchain configuration option,
like BR2_INET_IPV6, BR2_INET_RPC, on which some packages
depend. Therefore, it should be handled like BR2_INET_IPV6 and
BR2_INET_RPC in order to work properly with external toolchains.
Since we move it out of toolchain/uClibc/Config.in into
toolchain/Config.in.2, we rename the option to BR2_PROGRAM_INVOCATION
(since BR2_INET_RPC and others don't have UCLIBC in their name).
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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Closes #421.
This patch cleans up and fixes some minor issues with the locale support
section of the toolchain menu.
1. uClibc requires wchar support if locales are enabled, make locale
support select wchar support.
2. Allow purging of locale information even if there is no locale
support in the C library. This cleans up after packages that
install things into /usr/share/locale on the target.
Signed-off-by: Will Newton <will.newton@gmail.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
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Using the support in uClibc.
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Add BR2_ENABLE_LOCALE_PURGE / BR2_ENABLE_LOCALE_WHITELIST options to
remove unwanted locales from the target rootfs. Handy for stuff like
the gtk stack, which comes with ~25 MB locales.
Works similar to localepurge in Debian, E.G. you provide a white list
of wanted locales, and everything else is removed.
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Have added options that mean you can set the same BR2_XXXX variables
for external toolchain and internal (buildroot built) toolchain.
This means the same set of packages can be built now me as for you.....
Signed-off-by: Daniel Laird <daniel.j.laird@nxp.com>
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The VFP is only available for a few ARM CPUs at the moment,
so this breaks the liboil build.
A patch is available upstream which only enables "-mfpu=vfp"
if "--enable-vfp" is given to "configure".
Autotools needs to be run for liboil for this to take effect.
A new configuration BR2_VFP_FLOAT is added to allow enabling vfp.
If this is "yes", then "-mfpu=vfp" is added to CFLAGS.
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We used to use different gdb configs for internal and external toolchains
because mconf won't source the same file twice. This works, but is kind of
sub optimal, as people forget to keep them in sync.
Fix it to use the same file for both situations by shuffling around the
config options a bit. Should work identical to before (except for the newer
gdb versions available for ext).
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Improve external toolchain support
* Do not put kernel-headers in the dependencies of BASE_TARGETS in
the case where BR2_TOOLCHAIN_SOURCE is not y. The kernel headers
are already supposed to be part of the external toolchain, so
there's no need to download, extract and install them.
* In the configuration system, don't display the kernel headers
version selection list when an external toolchain is selected. This
is implemented by moving the source
"toolchain/kernel-headers/Config.in" inside the if
BR2_TOOLCHAIN_SOURCE in toolchain/Config.in.2.
* Change the description and help message of the BR2_LARGEFILE,
BR2_INET_IPV6, BR2_INET_RPC, and BR2_SOFT_FLOAT option in
toolchain/external-toolchain/Config.in. In the case of an external
toolchain, the semantic of these options is not to enable large
file support, IPV6 or RPC (since the toolchain is already compiled,
it has been decided previously). Their semantic is to let Buildroot
know about the characteristics of the external toolchain being
used.
As an improvement, we could guess these values automatically:
- for BR2_LARGEFILE, look at the value of __UCLIBC_HAS_LFS__ in
bits/uClibc_config.h in the libc headers directory.
- for BR2_INET_RPC, look at the value of __UCLIBC_HAS_RPC__ in the
same file
- for BR2_INET_IPV6, look at the value of __UCLIBC_HAS_IPV6__ in
the same file
- for BR2_SOFT_FLOAT, look at the output of $(CC) -v 2>&1 | grep
-- "--with-float=soft"
But I'm not sure how this would be possible, since these values are
used at configuration-time by other configuration options, not only
at build time.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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'default n' is the default, so there's no need to say it explicitly.
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Provide kernel headers when ext toolchain is used, so we can compile
packages which need them.
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gcc target abi back to a place where the other arch-specific settings live
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of config steps
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This is ment to ease configuration by providing toolchain related options in one place
No functional changes, just shuffling the menus around..
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TODO: use $(DISABLE_IPV6) in packages instead of a gazillion different hackish ways that are currently in there
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and all other comments to <biteme@devnull.com>.
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