|author||Yann E. MORIN <email@example.com>||2014-07-31 00:57:15 +0200|
|committer||Thomas Petazzoni <firstname.lastname@example.org>||2014-07-31 23:51:39 +0200|
toolchain: linker options with a $ sign are not supported
As reported in bug #7172 , setting BR2_TARGET_LDFLAGS to a value containing a $ sign can lead to unexpected results. This is because it is very hard to know when the $ sign gets evaluated: - in the Buildroot-level make - in the shell called by the Buildroot-level make - in the package's own build-system, either at configure time, in the Makefile, in a shell in the Makefile... So, it is very difficult to know how much escaping that would need. A proposal is to use a shell variable to pass such values unmolested. But it is not that simple either, since it still contains a $ sign, and there is not much certainty as to when it would be evaluated. Instead, just document this limitation, both in the help text for BR2_TARGET_LDFLAGS, and in the known-issues section in the manual. Does not really fix #7172, but at least the limitation is documented.  https://bugs.buildroot.org/show_bug.cgi?id=7172 Signed-off-by: "Yann E. MORIN" <email@example.com> Cc: Mike Zick <firstname.lastname@example.org> Reviewed-by: Thomas De Schampheleire <email@example.com> Signed-off-by: Thomas Petazzoni <firstname.lastname@example.org>
Diffstat (limited to 'toolchain/toolchain-common.in')
1 files changed, 3 insertions, 0 deletions
diff --git a/toolchain/toolchain-common.in b/toolchain/toolchain-common.in
index 13de9e5c56..2df8ddb637 100644
@@ -132,6 +132,9 @@ config BR2_TARGET_LDFLAGS
Extra options to pass to the linker when building for the target.
+ Note that options with a '$' sign (eg. -Wl,-rpath='$ORIGIN/../lib')
+ are not supported.
bool "Register toolchain within Eclipse Buildroot plug-in"