[Buildroot] [PATCH v2 2/5] package/pkg-cmake.mk: set the {C, CXX, LD}FLAGS for host packages
Yann E. MORIN
yann.morin.1998 at free.fr
Sun Sep 14 16:27:35 UTC 2014
Samuel, All,
On 2014-08-21 22:45 +0200, Samuel Martin spake thusly:
> Signed-off-by: Samuel Martin <s.martin49 at gmail.com>
As I am not a cmake expert, I'd like a bit more explanations in the
commit log.
What puzzles me is that, for the target case, these flags are passed via
support/misc/toolchainfile.cmake.in, while for the host, we pass them on
the command line. This is not consistent.
Why don't we also use a host.cmake.in file like we have for the target?
Note that us having support/misc/toolchainfile.cmake.in does not even
help for building a cmake package outside of Buildroot (but still using
our toolchain), since the user may forget to define CMAKE_TOOLCHAIN_FILE
when calling cmake on his own.
Note: I know you have a good answer, but I'm a bit lost as to all those
special-casing in cmake, which makes reviewing a bit difficult, and a
bit of comments in the commit log (a pointer to the cmake doc would be
enough!) would make it easier.
Regards,
Yann E. MORIN.
> ---
> changes v1 -> v2:
> - no change
> ---
> package/pkg-cmake.mk | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/package/pkg-cmake.mk b/package/pkg-cmake.mk
> index f5aefae..3655751 100644
> --- a/package/pkg-cmake.mk
> +++ b/package/pkg-cmake.mk
> @@ -86,6 +86,9 @@ define $(2)_CONFIGURE_CMDS
> -DCMAKE_FIND_ROOT_PATH_MODE_LIBRARY="BOTH" \
> -DCMAKE_FIND_ROOT_PATH_MODE_INCLUDE="BOTH" \
> -DCMAKE_INSTALL_PREFIX="$$(HOST_DIR)/usr" \
> + -DCMAKE_C_FLAGS="$$(HOST_CFLAGS)" \
> + -DCMAKE_CXX_FLAGS="$$(HOST_CXXFLAGS)" \
> + -DCMAKE_EXE_LINKER_FLAGS="$$(HOST_LDFLAGS)" \
> -DBUILD_TESTING=OFF \
> $$($$(PKG)_CONF_OPT) \
> )
> --
> 2.1.0
>
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