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cmake: fix compiling some C++ projects with Yocto SDK and GCC

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Setting CMAKE_SYSROOT in the toolchain file allows CMake to correctly
remove user-provided system include directories pointing to
<sysroot>/usr/include. The mentioned projects failed with "stdlib.h:
No such file or directory #include_next <stdlib.h>".

(From OE-Core rev: cb42802f2fe1760f894a435b07286bca3a220364)

Signed-off-by: Urs Fässler <urs.fassler@bbv.ch>
Signed-off-by: Raphael Freudiger <raphael.freudiger@siemens.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Urs Fässler
2018-08-08 09:33:52 +02:00
committed by Richard Purdie
parent c1e8a02609
commit 483143a38e
1 changed files with 1 additions and 0 deletions
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meta/recipes-devtools/cmake/cmake/OEToolchainConfig.cmake
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@@ -3,6 +3,7 @@ set( CMAKE_C_FLAGS $ENV{CFLAGS} CACHE STRING "" FORCE )
set( CMAKE_CXX_FLAGS $ENV{CXXFLAGS} CACHE STRING "" FORCE )
set( CMAKE_ASM_FLAGS ${CMAKE_C_FLAGS} CACHE STRING "" FORCE )
set( CMAKE_LDFLAGS_FLAGS ${CMAKE_CXX_FLAGS} CACHE STRING "" FORCE )
set( CMAKE_SYSROOT $ENV{OECORE_TARGET_SYSROOT} )
set( CMAKE_FIND_ROOT_PATH $ENV{OECORE_TARGET_SYSROOT} $ENV{OECORE_NATIVE_SYSROOT} )
set( CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER )