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pkg-cmake.mk: do not hardcode absolute path in toolchainfile.cmake

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The patch allows sharing or moving the toolchains.

This is a step toward making the toolchain/sdk relocatable.

Closes #6818

[Peter: reword comment as suggested by Thomas]
Signed-off-by: Samuel Martin <s.martin49@gmail.com>
Cc: Uwe Strempel <u.strempel@googlemail.com>
Cc: Arnout Vandecappelle <arnout@mind.be>
Reviewed-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This commit is contained in:
Samuel Martin
2014-06-01 11:24:24 +02:00
committed by Peter Korsgaard
parent 85fea5d953
commit 9033d90118
2 changed files with 19 additions and 9 deletions
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17
support/misc/toolchainfile.cmake.in
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@@ -3,18 +3,25 @@
# CMake toolchain file for Buildroot
#
# In order to allow the toolchain to be relocated, we calculate the
# HOST_DIR based on this file's location: $(HOST_DIR)/usr/share/buildroot
# and store it in RELOCATED_HOST_DIR.
# All the other variables that need to refer to HOST_DIR will use the
# RELOCATED_HOST_DIR variable.
string(REPLACE "/usr/share/buildroot" "" RELOCATED_HOST_DIR ${CMAKE_CURRENT_LIST_DIR})
set(CMAKE_SYSTEM_NAME Linux)
set(CMAKE_C_FLAGS "@@TARGET_CFLAGS@@ ${CMAKE_C_FLAGS}" CACHE STRING "Buildroot CFLAGS" FORCE)
set(CMAKE_CXX_FLAGS "@@TARGET_CXXFLAGS@@ ${CMAKE_CXX_FLAGS}" CACHE STRING "Buildroot CXXFLAGS" FORCE)
set(CMAKE_INSTALL_SO_NO_EXE 0)
set(CMAKE_PROGRAM_PATH "@@HOST_DIR@@/usr/bin")
set(CMAKE_FIND_ROOT_PATH "@@STAGING_DIR@@")
set(CMAKE_PROGRAM_PATH "${RELOCATED_HOST_DIR}/usr/bin")
set(CMAKE_FIND_ROOT_PATH "${RELOCATED_HOST_DIR}/@@STAGING_SUBDIR@@")
set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
set(ENV{PKG_CONFIG_SYSROOT_DIR} "@@STAGING_DIR@@")
set(ENV{PKG_CONFIG_SYSROOT_DIR} "${RELOCATED_HOST_DIR}/@@STAGING_SUBDIR@@")
set(CMAKE_C_COMPILER "@@TARGET_CC_NOCCACHE@@")
set(CMAKE_CXX_COMPILER "@@TARGET_CXX_NOCCACHE@@")
set(CMAKE_C_COMPILER "${RELOCATED_HOST_DIR}/@@TARGET_CC_NOCCACHE@@")
set(CMAKE_CXX_COMPILER "${RELOCATED_HOST_DIR}/@@TARGET_CXX_NOCCACHE@@")