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Yann E. MORIN 545cb34cb3 package/acpitool: needs threads, shared; unavailable for bfin
acpitool requires threads.

However, it does not check for threads in its configure script, so
forgets to link with -pthreads, so fails to build in static-only
scenarii.

However, upstream has been dead for the past 7+ years now, so there is
not much point trying to fix this. Besides, a system with ACPI is most
probably a biggish system, so shared libs will probably be enabled, so
we just require shared libs.

As for bfin, the cryptic configure failure:
    configure: error: C++ compiler cannot create executables

is due to the order in which AC_PROG_CXX and AC_PROG_CC are called.
Calling AC_PROG_CC first fixes this error message in this specific case.
However, this is a toolchain issue, as this does not occur for other
toolchains.

Still, inverting the call would anyway then cause linking errors:

    /home/ymorin/dev/buildroot/O/host/usr/bin/bfin-linux-g++  -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Os    -o acpitool main.o acpitool.o ac_adapter.o toshiba.o asus.o thinkpad.o cpu.o battery.o freq.o -lgcc
    acpitool.o: In function `Has_ACPI(char*)':
    acpitool.cpp:(.text+0x1be): undefined reference to `_Unwind_Resume'
    acpitool.o: In function `Get_Kernel_Version(char*, int)':
    acpitool.cpp:(.text+0x2aa): undefined reference to `_Unwind_Resume'
    acpitool.o: In function `Set_Kernel_Version()':
    acpitool.cpp:(.text+0x43e): undefined reference to `_Unwind_Resume'
    acpitool.o: In function `Do_Fan_Info(int)':
    acpitool.cpp:(.text+0x60a): undefined reference to `_Unwind_Resume'
    acpitool.o: In function `Show_WakeUp_Devices(int)':
    acpitool.cpp:(.text+0x770): undefined reference to `_Unwind_Resume'
    acpitool.o:acpitool.cpp:(.text+0x9ca): more undefined references to `_Unwind_Resume' follow
    /home/ymorin/dev/buildroot/O/host/opt/ext-toolchain/bin/../lib/gcc/bfin-buildroot-linux-uclibc/6.1.0/../../../../bfin-buildroot-linux-uclibc/bin/ld: acpitool: hidden symbol `___udivsi3' in /home/ymorin/dev/buildroot/O/host/opt/ext-toolchain/bin/../lib/gcc/bfin-buildroot-linux-uclibc/6.1.0/libgcc.a(_udivsi3.o) is referenced by DSO
    /home/ymorin/dev/buildroot/O/host/opt/ext-toolchain/bin/../lib/gcc/bfin-buildroot-linux-uclibc/6.1.0/../../../../bfin-buildroot-linux-uclibc/bin/ld: final link failed: Bad value
    collect2: error: ld returned 1 exit status

Again, because upstream is dead, there's not much point trying to fix
this... And since there's not many chances that a bfin board has ACPI,
we just disable acpitool for bfin.

Fixes various build failures:
    http://autobuild.buildroot.org/results/6fc/6fc568228b7c5c5be9e35aae73fb09b431896325/
    http://autobuild.buildroot.org/results/f1e/f1eb711123c2d8aea8399b8984a007afec4f65fb/
    http://autobuild.buildroot.org/results/70e/70eb7d7ed93a122b4c7a9890877e721b8d777b00/
    [...]

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Erico Nunes <nunes.erico@gmail.com>
Cc: Peter Korsgaard <peter@korsgaard.com>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2016-09-28 22:12:48 +02:00
arch arch: remove support for sh64 2016-09-08 22:15:15 +02:00
board board: bump armadeus apf28's kernel version to latest longterm (4.4.22) 2016-09-26 21:31:36 +02:00
boot u-boot: Fix building for ARC700 2016-09-25 23:24:27 +02:00
configs board: bump armadeus apf28's kernel version to latest longterm (4.4.22) 2016-09-26 21:31:36 +02:00
docs docs/manual: update the linux tools section 2016-09-22 12:32:34 +02:00
fs fs/common: add option to execute custom scripts under fakeroot 2016-07-03 20:58:46 +02:00
linux linux: bump default to version 4.7.5 2016-09-24 16:40:09 +02:00
package package/acpitool: needs threads, shared; unavailable for bfin 2016-09-28 22:12:48 +02:00
support support/scripts/get-developers: add new script 2016-09-21 09:02:13 +02:00
system system: fix unmet dependencies 2016-09-11 15:45:24 +02:00
toolchain toolchain-external: bump version of Linaro AArch64 toolchain 2016-09-25 22:00:56 +02:00
.defconfig arch: remove support for sh64 2016-09-08 22:15:15 +02:00
.gitignore update gitignore 2013-05-04 12:41:55 +02:00
CHANGES CHANGES: fix typo in 2016.08 release line 2016-09-21 23:06:11 +02:00
Config.in google-breakpad: needs thread support 2016-09-19 16:50:46 +02:00
Config.in.legacy weston: bump to version 1.12.0 2016-09-25 23:17:06 +02:00
COPYING COPYING: add exception about patch licensing 2016-02-26 19:50:13 +01:00
DEVELOPERS DEVELOPERS: add developer for Acme Systems boards 2016-09-25 23:20:41 +02:00
Makefile linux: use INSTALL_MOD_STRIP=1 to strip modules 2016-09-19 19:29:02 +02:00
Makefile.legacy Makefile.legacy: fix recursive invocation with BUILDROOT_DL_DIR and _CONFIG 2014-02-11 08:14:57 +01:00
README README: add reference to submitting-patches 2016-02-01 19:16:08 +01:00

Buildroot is a simple, efficient and easy-to-use tool to generate embedded
Linux systems through cross-compilation.

The documentation can be found in docs/manual. You can generate a text
document with 'make manual-text' and read output/docs/manual/manual.text.
Online documentation can be found at http://buildroot.org/docs.html

To build and use the buildroot stuff, do the following:

1) run 'make menuconfig'
2) select the target architecture and the packages you wish to compile
3) run 'make'
4) wait while it compiles
5) find the kernel, bootloader, root filesystem, etc. in output/images

You do not need to be root to build or run buildroot.  Have fun!

Buildroot comes with a basic configuration for a number of boards. Run
'make list-defconfigs' to view the list of provided configurations.

Please feed suggestions, bug reports, insults, and bribes back to the
buildroot mailing list: buildroot@buildroot.org
You can also find us on #buildroot on Freenode IRC.

If you would like to contribute patches, please read
https://buildroot.org/manual.html#submitting-patches