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Diffstat (limited to 'Help/manual/cmake-toolchains.7.rst')
| -rw-r--r-- | Help/manual/cmake-toolchains.7.rst | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/Help/manual/cmake-toolchains.7.rst b/Help/manual/cmake-toolchains.7.rst index df4531b..7435d9a 100644 --- a/Help/manual/cmake-toolchains.7.rst +++ b/Help/manual/cmake-toolchains.7.rst @@ -101,6 +101,14 @@ values for the compilers. The :variable:`CMAKE_CROSSCOMPILING` variable is set to true when CMake is cross-compiling. +Note that using the :variable:`CMAKE_SOURCE_DIR` or :variable:`CMAKE_BINARY_DIR` +variables inside a toolchain file is typically undesirable. The toolchain +file is used in contexts where these variables have different values when used +in different places (e.g. as part of a call to :command:`try_compile`). In most +cases, where there is a need to evaluate paths inside a toolchain file, the more +appropriate variable to use would be :variable:`CMAKE_CURRENT_LIST_DIR`, since +it always has an unambiguous, predictable value. + Cross Compiling for Linux ------------------------- |