[Buildroot] [PATCH] wvstreams: Build bundled argp library with -fPIC

Peter Korsgaard jacmet at uclibc.org
Thu Jun 20 08:00:34 UTC 2013

>>>>> "Markos" == Markos Chandras <markos.chandras at gmail.com> writes:

 Markos> From: Markos Chandras <markos.chandras at imgtec.com>
 Markos> Fixes linking problems on MIPS.

 Markos> Signed-off-by: Markos Chandras <markos.chandras at imgtec.com>
 Markos> ---
 Markos>  package/wvstreams/wvstreams-0006-argp-fpic.patch | 28 ++++++++++++++++++++++++
 Markos>  1 file changed, 28 insertions(+)
 Markos>  create mode 100644 package/wvstreams/wvstreams-0006-argp-fpic.patch

 Markos> diff --git a/package/wvstreams/wvstreams-0006-argp-fpic.patch b/package/wvstreams/wvstreams-0006-argp-fpic.patch
 Markos> new file mode 100644
 Markos> index 0000000..b4cf1d2
 Markos> --- /dev/null
 Markos> +++ b/package/wvstreams/wvstreams-0006-argp-fpic.patch
 Markos> @@ -0,0 +1,28 @@
 Markos> +Build argp object files with -fPIC.
 Markos> +
 Markos> +The argp bundled dependency is linked to the libwvutils.so shared library.
 Markos> +MIPS will refuce to link a non-PIC library with a shared one.
 Markos> +
 Markos> +We fix this problem by building the argp source files using -fPIC since
 Markos> +the libargp static library will only be used to link to libwvutils.so
 Markos> +as instructed by the following rule in the root Makefile:
 Markos> +
 Markos> +ifeq ($(USE_WVSTREAMS_ARGP),1)
 Markos> +  utils/wvargs.o-CPPFLAGS += -Iargp
 Markos> +  libwvutils.so-LIBS += -Largp -largp
 Markos> +
 Markos> +Signed-off-by: Markos Chandras <markos.chandras at imgtec.com>
 Markos> +
 Markos> +Index: wvstreams-4.6.1/argp/Makefile.in
 Markos> +===================================================================
 Markos> +--- wvstreams-4.6.1.orig/argp/Makefile.in
 Markos> ++++ wvstreams-4.6.1/argp/Makefile.in
 Markos> +@@ -137,7 +137,7 @@ AUTOMAKE = @AUTOMAKE@
 Markos> + AWK = @AWK@
 Markos> + CC = @CC@
 Markos> +-CFLAGS = @CFLAGS@
 Markos> ++CFLAGS = @CFLAGS@ -fPIC

How about when wvstreams is built as a static library

Makefile.in is a generated file, so you should rather fix Makefile.am
and set WVSTREAMS_AUTORECONF = YES, but wouldn't it just be simpler to
building in the !BR2_PREFER_STATIC_LIB case?

Bye, Peter Korsgaard

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