Add argp implementation

Argp is an advanced support for parsing unix-style argument vectors.
In addition to the common getopt interface, it provides automatic
response
to `--help' and `--version' options and use of custom parser in
conjunction
with argp native option parser, among others.
Argp support is required by elfutils package and prelink.

In uClibc argp functionalities has been moved from C library to
libuargp.so
Further the libc.so linker script contains an AS_NEEDED entry so that
it doesn't need to link libuargp.so explicitely.

Disable argp test if feature disabled.

Signed-off-by: Salvatore Cro <salvatore.cro@st.com>
Signed-off-by: Filippo Arcidiacono <filippo.arcidiacono@st.com>
Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Waldemar Brodkorb <wbx@uclibc-ng.org>

1 files changed, 17 insertions, 0 deletions

diff --git a/extra/Configs/Config.in b/extra/Configs/Config.in
index 7aeee210a..81042af0a 100644
--- a/extra/Configs/Config.in
+++ b/extra/Configs/Config.in
@@ -1950,6 +1950,23 @@ config UCLIBC_HAS_GNU_GETSUBOPT
 	  Answer Y if you want to include getsubopt().
 
 	  Most people will answer Y.
+
+config UCLIBC_HAS_ARGP
+       bool "Support argp (as standalone shared object)"
+       default n
+       help
+         Argp is an interface for parsing unix-style argument vectors. Unlike
+         the common getopt interface, it provides many advanced features in
+         addition to parsing options, such as automatic output in response to
+         `--help' and `--version' options.
+         A library can export an argp option parser, which programs can easily
+         use in conjunction with their own option parser.
+         A new shared object "libuargp" is created. The "libc.so" linker script
+         contains the AS_NEEDED entry for getting the libuargp linked automatically.
+         Argp support is needed by elfutils libdw.
+
+         Most people can safely answer N.
+
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