[Buildroot] [git commit master] Add a BR2_NEEDS_GETTEXT option

Thomas Petazzoni thomas.petazzoni at free-electrons.com
Fri May 21 18:37:51 UTC 2010

commit: http://git.buildroot.net/buildroot/commit/?id=54d64798e1e14b526c3cc1142961972cff9f1e8a
branch: http://git.buildroot.net/buildroot/commit/?id=refs/heads/master

When using an external toolchain that uses the glibc or eglibc C
libraries, compiling a separate gettext and libintl is not needed and
is even a source of confusion, causing build failures. These build
failures are due to the fact that when libintl is compiled, it
replaces the C library libintl.h by its own, which does #define
gettext libintl_gettext. Then, when packages want to use gettext,
autoconf realize that gettext is available in the C library and
therefore do not add -lintl to the LDFLAGS, causing the build failure
because the program has been compiled to use libintl_gettext but this
function is not available.

Therefore, we should only use gettext if a uClibc internal toolchain
or a uClibc external toolchain. If an external glibc toolchain is
used, gettext shouldn't be used.

In order to implement that, we introduce the BR2_NEEDS_GETTEXT option,
which is hidden to the user, and whose value is computed automatically
from the rest of the configuration.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>
 toolchain/Config.in.2 |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/toolchain/Config.in.2 b/toolchain/Config.in.2
index f04f18a..fc6759d 100644
--- a/toolchain/Config.in.2
+++ b/toolchain/Config.in.2
@@ -56,6 +56,14 @@ config BR2_ENABLE_LOCALE_WHITELIST
 	  will be available on the target - That purely depends on the
 	  support for that locale in the selected packages.
+# uClibc toolchains require a separatly-compiled gettext/libintl when
+# locale support is enabled. This isn't necessary with glibc
+#  toolchains as glibc includes gettext/libintl.
+	bool
 config BR2_USE_WCHAR
 	bool "Enable WCHAR support"

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