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build: cleanup SSP_SUPPORT configure option

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Configure variable SSP_SUPPORT is ambiguous for packages (tor, openssh,
avahi, freeswitch). It means 'toolchain supporting SSP', but for toolchain
and depends it means 'build gcc with libssp'.

Musl no longer uses libssp (1877bc9d8f), it has internal support, so
SSP_SUPPORT was disabled leading some package to not use SSP.

No information why Glibc and uClibc use libssp, but they may also provide
their own SSP support. uClibc used it own with commit 933b588e25 but it was
reverted in f3cacb9e84 without details.

Create an new configure GCC_LIBSSP and automatically enable SSP_SUPPORT
if either USE_MUSL or GCC_LIBSSP.

Signed-off-by: Julien Dusser <julien.dusser@free.fr>
This commit is contained in:
Julien Dusser
2018-01-07 18:47:21 +01:00
committed by Hauke Mehrtens
parent 55779569eb
commit 241e6dd3e9
6 changed files with 11 additions and 7 deletions
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4
toolchain/gcc/Config.in
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@@ -52,9 +52,9 @@ config GCC_DEFAULT_SSP
help
Use gcc configure option --enable-default-ssp to turn on -fstack-protector-strong by default.
config SSP_SUPPORT
config GCC_LIBSSP
bool
prompt "Enable Stack-Smashing Protection support" if TOOLCHAINOPTS
prompt "Build gcc libssp" if TOOLCHAINOPTS
depends on !USE_MUSL
default y if !USE_MUSL
help