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newlib-nano: Fix include path for CT_NEWLIB_NANO_INSTALL_IN_TARGET

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When `CT_NEWLIB_NANO_INSTALL_IN_TARGET=y`, the `nano.specs` file
emitted by the newlib-nano build script contains an invalid include
path, resulting in the full `newlib.h` being included instead of the
nano `newlib.h` by the application.

`=/include/newlib-nano` is not a valid path (`=` does not mean anything
and that string is taken as an include path as-is) and GCC ignores this
include path, resulting in application including the `newlib.h` from
`include/` which contains the newlib build configurations for the full
newlib.

This commit modifies the newlib-nano build script to emit a proper
newlib-nano include path relative to the `GCC_EXEC_PREFIX`.

Signed-off-by: Stephanos Ioannidis <root@stephanos.io>
This commit is contained in:
Stephanos Ioannidis 2022-05-10 01:11:23 +09:00 committed by Chris Packham
parent 396f23d3de
commit 1da7698b7c
1 changed files with 1 additions and 1 deletions
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2
scripts/build/companion_libs/350-newlib_nano.sh
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@ -203,7 +203,7 @@ ENABLE_TARGET_OPTSPACE:target-optspace
%rename cpp_unique_options nano_cpp_unique_options
*cpp_unique_options:
-isystem =/include/newlib-nano %(nano_cpp_unique_options)
-isystem %:getenv(GCC_EXEC_PREFIX ../../${CT_TARGET}/include/newlib-nano) %(nano_cpp_unique_options)
*nano_libc:
-lc_nano