[Buildroot] [git commit] package/directfb: disable for static builds
Thomas Petazzoni
thomas.petazzoni at free-electrons.com
Sun Feb 26 20:45:22 UTC 2017
commit: https://git.buildroot.net/buildroot/commit/?id=dbd30cd5d8d1970e2838ffb59d0179a1524b0ce4
branch: https://git.buildroot.net/buildroot/commit/?id=refs/heads/master
DirectFB is written in C++, but can be linked to by a C library or
program.
When doing shared link, this is fine because the linker gets help from
the DT_NEEDED flags and knows what libraries to pull in during the link.
However, during a static link, the linker does not get such help.
Properly fixing this would require that there is support in pkg-config
and autotools to specify that the C++ runtime must be linked. Alas there
is no sush support. The only option is to add -lstdc++ to the
Libs.Private field in directfb.pc. But this is not upstreamable, because
there are other C++ runtimes in the wild (e.g. -lc++ from llvm/clang).
However, DirectFB in a static scenario is probably not a very common
scenario.
Disable DirectFB for static builds.
Fixes:
http://autobuild.buildroot.org/results/3d3/3d3036d40ddad71d872d910aae7a24975706d2e9/
http://autobuild.buildroot.org/results/d1c/d1c35a6003396942b584f2f2a5e8bf4ac2fbe370/
http://autobuild.buildroot.org/results/d45/d4504871bd47930e8363032d380cdfcc5bb8aee7/
[...]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998 at free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>
---
package/directfb/Config.in | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/package/directfb/Config.in b/package/directfb/Config.in
index b552164..6a3d718 100644
--- a/package/directfb/Config.in
+++ b/package/directfb/Config.in
@@ -1,5 +1,6 @@
config BR2_PACKAGE_DIRECTFB
bool "directfb"
+ depends on !BR2_STATIC_LIBS # static link issues
depends on BR2_TOOLCHAIN_HAS_THREADS_NPTL
depends on BR2_INSTALL_LIBSTDCPP
depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_5
@@ -161,7 +162,8 @@ config BR2_PACKAGE_DIRECTFB_TESTS
endif # BR2_PACKAGE_DIRECTFB
-comment "directfb needs a glibc or uClibc toolchain w/ C++, NPTL, gcc >= 4.5"
+comment "directfb needs a glibc or uClibc toolchain w/ C++, NPTL, gcc >= 4.5, dynamic library"
depends on BR2_TOOLCHAIN_HAS_SYNC_4
depends on !BR2_TOOLCHAIN_HAS_THREADS_NPTL || !BR2_INSTALL_LIBSTDCPP || \
- !BR2_TOOLCHAIN_GCC_AT_LEAST_4_5 || BR2_TOOLCHAIN_USES_MUSL
+ !BR2_TOOLCHAIN_GCC_AT_LEAST_4_5 || BR2_TOOLCHAIN_USES_MUSL || \
+ BR2_STATIC_LIBS
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