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pkg-cmake.mk: set CMAKE_SYSROOT variable in toolchainfile.cmake

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This change enforces the CMAKE_SYSROOT value set in the toolchainfile.cmake.

This fix overrides the CMake heuristics used to guess it, and turns off some
non-desirable behavior adding "-isystem ..." flags to the compiler command
line, misleading the compiler and making the build failed due to some
unfound standard headers.

Fixes:
  http://autobuild.buildroot.net/results/f7e/f7e92678e91a6cb15ccf32d4a7d75b39f49d6000/defconfig
  (and others)

Cc: Ben Boeckel <mathstuf@gmail.com>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Samuel Martin <s.martin49@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit is contained in:
Samuel Martin 2016-08-17 23:19:36 +02:00 committed by Thomas Petazzoni
parent b0f0367d3a
commit e8c3755676
1 changed files with 1 additions and 0 deletions
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support/misc/toolchainfile.cmake.in
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@ -19,6 +19,7 @@ set(CMAKE_EXE_LINKER_FLAGS "@@TARGET_LDFLAGS@@ ${CMAKE_EXE_LINKER_FLAGS}" CACHE
set(CMAKE_INSTALL_SO_NO_EXE 0) set(CMAKE_INSTALL_SO_NO_EXE 0)
set(CMAKE_PROGRAM_PATH "${RELOCATED_HOST_DIR}/usr/bin") set(CMAKE_PROGRAM_PATH "${RELOCATED_HOST_DIR}/usr/bin")
set(CMAKE_SYSROOT "${RELOCATED_HOST_DIR}/@@STAGING_SUBDIR@@")
set(CMAKE_FIND_ROOT_PATH "${RELOCATED_HOST_DIR}/@@STAGING_SUBDIR@@") set(CMAKE_FIND_ROOT_PATH "${RELOCATED_HOST_DIR}/@@STAGING_SUBDIR@@")
set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER) set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY) set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)