* [Buildroot] [PATCH] package/libgpiod: bump to version 1.6.2
@ 2021-02-01 9:12 Michael Nosthoff
2021-02-01 9:55 ` Bartosz Golaszewski
0 siblings, 1 reply; 5+ messages in thread
From: Michael Nosthoff @ 2021-02-01 9:12 UTC (permalink / raw)
To: buildroot
Version 1.6.2 now builds against headers >= 4.8.x. (Previously 5.5 was
required). Functionality might still be limited depending on the kernel version.
* altered note on updating
* disable building of tests
Signed-off-by: Michael Nosthoff <buildroot@heine.tech>
---
package/libgpiod/libgpiod.hash | 2 +-
package/libgpiod/libgpiod.mk | 7 ++++---
2 files changed, 5 insertions(+), 4 deletions(-)
diff --git a/package/libgpiod/libgpiod.hash b/package/libgpiod/libgpiod.hash
index 0ea15869b0..7b691aaf5e 100644
--- a/package/libgpiod/libgpiod.hash
+++ b/package/libgpiod/libgpiod.hash
@@ -1,4 +1,4 @@
# From https://www.kernel.org/pub/software/libs/libgpiod/sha256sums.asc
-sha256 a041b06907c956dd1c77836cccf4d392af29b9fe09c8ad18449a6da707b5ba2d libgpiod-1.4.5.tar.xz
+sha256 c601e71846f5ab140c83bc757fdd62a4fda24a9cee39cc5e99c96ec2bf1b06a9 libgpiod-1.6.2.tar.xz
# Hash for license file
sha256 ce64d5f7b49ea6d80fdb6d4cdee6839d1a94274f7493dc797c3b55b65ec8e9ed COPYING
diff --git a/package/libgpiod/libgpiod.mk b/package/libgpiod/libgpiod.mk
index 83d5abb002..72f8ae772c 100644
--- a/package/libgpiod/libgpiod.mk
+++ b/package/libgpiod/libgpiod.mk
@@ -4,15 +4,16 @@
#
################################################################################
-# be careful when bumping versions, newer branches (e.g. >= 1.6)
-# depend on pretty recent kernel headers
-LIBGPIOD_VERSION = 1.4.5
+# Be careful when bumping versions.
+# Dependency on kernel header versions may change.
+LIBGPIOD_VERSION = 1.6.2
LIBGPIOD_SOURCE = libgpiod-$(LIBGPIOD_VERSION).tar.xz
LIBGPIOD_SITE = https://www.kernel.org/pub/software/libs/libgpiod
LIBGPIOD_LICENSE = LGPL-2.1+
LIBGPIOD_LICENSE_FILES = COPYING
LIBGPIOD_INSTALL_STAGING = YES
LIBGPIOD_DEPENDENCIES = host-pkgconf
+LIBGPIOD_CONF_OPTS = --disable-tests
ifeq ($(BR2_PACKAGE_LIBGPIOD_TOOLS),y)
LIBGPIOD_CONF_OPTS += --enable-tools
--
2.25.1
^ permalink raw reply related [flat|nested] 5+ messages in thread
* [Buildroot] [PATCH] package/libgpiod: bump to version 1.6.2
2021-02-01 9:12 [Buildroot] [PATCH] package/libgpiod: bump to version 1.6.2 Michael Nosthoff
@ 2021-02-01 9:55 ` Bartosz Golaszewski
2021-02-01 10:29 ` Michael Nosthoff
0 siblings, 1 reply; 5+ messages in thread
From: Bartosz Golaszewski @ 2021-02-01 9:55 UTC (permalink / raw)
To: buildroot
On Mon, Feb 1, 2021 at 10:13 AM Michael Nosthoff <buildroot@heine.tech> wrote:
>
> Version 1.6.2 now builds against headers >= 4.8.x. (Previously 5.5 was
> required). Functionality might still be limited depending on the kernel version.
>
> * altered note on updating
> * disable building of tests
>
> Signed-off-by: Michael Nosthoff <buildroot@heine.tech>
> ---
> package/libgpiod/libgpiod.hash | 2 +-
> package/libgpiod/libgpiod.mk | 7 ++++---
> 2 files changed, 5 insertions(+), 4 deletions(-)
>
> diff --git a/package/libgpiod/libgpiod.hash b/package/libgpiod/libgpiod.hash
> index 0ea15869b0..7b691aaf5e 100644
> --- a/package/libgpiod/libgpiod.hash
> +++ b/package/libgpiod/libgpiod.hash
> @@ -1,4 +1,4 @@
> # From https://www.kernel.org/pub/software/libs/libgpiod/sha256sums.asc
> -sha256 a041b06907c956dd1c77836cccf4d392af29b9fe09c8ad18449a6da707b5ba2d libgpiod-1.4.5.tar.xz
> +sha256 c601e71846f5ab140c83bc757fdd62a4fda24a9cee39cc5e99c96ec2bf1b06a9 libgpiod-1.6.2.tar.xz
> # Hash for license file
> sha256 ce64d5f7b49ea6d80fdb6d4cdee6839d1a94274f7493dc797c3b55b65ec8e9ed COPYING
> diff --git a/package/libgpiod/libgpiod.mk b/package/libgpiod/libgpiod.mk
> index 83d5abb002..72f8ae772c 100644
> --- a/package/libgpiod/libgpiod.mk
> +++ b/package/libgpiod/libgpiod.mk
> @@ -4,15 +4,16 @@
> #
> ################################################################################
>
> -# be careful when bumping versions, newer branches (e.g. >= 1.6)
> -# depend on pretty recent kernel headers
> -LIBGPIOD_VERSION = 1.4.5
> +# Be careful when bumping versions.
> +# Dependency on kernel header versions may change.
You can remove this comment - for v1.6.x I won't change the headers
version requirement anymore and vor v2.x we'll start bundling the
kernel header with the library. I also don't plan on making any new
feature releases for the v1.x series.
> +LIBGPIOD_VERSION = 1.6.2
> LIBGPIOD_SOURCE = libgpiod-$(LIBGPIOD_VERSION).tar.xz
> LIBGPIOD_SITE = https://www.kernel.org/pub/software/libs/libgpiod
> LIBGPIOD_LICENSE = LGPL-2.1+
> LIBGPIOD_LICENSE_FILES = COPYING
> LIBGPIOD_INSTALL_STAGING = YES
> LIBGPIOD_DEPENDENCIES = host-pkgconf
> +LIBGPIOD_CONF_OPTS = --disable-tests
>
Maybe add an option to build them conditionally? Like yocto's ptest
distro feature?
Bart
> ifeq ($(BR2_PACKAGE_LIBGPIOD_TOOLS),y)
> LIBGPIOD_CONF_OPTS += --enable-tools
> --
> 2.25.1
>
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Buildroot] [PATCH] package/libgpiod: bump to version 1.6.2
2021-02-01 9:55 ` Bartosz Golaszewski
@ 2021-02-01 10:29 ` Michael Nosthoff
2021-02-01 13:39 ` Michael Nosthoff
0 siblings, 1 reply; 5+ messages in thread
From: Michael Nosthoff @ 2021-02-01 10:29 UTC (permalink / raw)
To: buildroot
Hi Bartosz,
On Monday, February 01, 2021 10:55 CET, Bartosz Golaszewski <brgl@bgdev.pl> wrote:
> On Mon, Feb 1, 2021 at 10:13 AM Michael Nosthoff <buildroot@heine.tech> wrote:
> >
> > -LIBGPIOD_VERSION = 1.4.5
> > +# Be careful when bumping versions.
> > +# Dependency on kernel header versions may change.
>
> You can remove this comment - for v1.6.x I won't change the headers
> version requirement anymore and vor v2.x we'll start bundling the
> kernel header with the library. I also don't plan on making any new
> feature releases for the v1.x series.
>
perfect, then I'll drop that.
> > +LIBGPIOD_VERSION = 1.6.2
> > LIBGPIOD_SOURCE = libgpiod-$(LIBGPIOD_VERSION).tar.xz
> > LIBGPIOD_SITE = https://www.kernel.org/pub/software/libs/libgpiod
> > LIBGPIOD_LICENSE = LGPL-2.1+
> > LIBGPIOD_LICENSE_FILES = COPYING
> > LIBGPIOD_INSTALL_STAGING = YES
> > LIBGPIOD_DEPENDENCIES = host-pkgconf
> > +LIBGPIOD_CONF_OPTS = --disable-tests
> >
>
> Maybe add an option to build them conditionally? Like yocto's ptest
> distro feature?
>
I'm not sure if this fits into buildroot's scope. What would be the benefit for the user? Maybe Thomas has an opinion on that?
From the dependencies I see we currently don't have catch2 in BR. So this might be the showstopper atm.
Regards,
Michael
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Buildroot] [PATCH] package/libgpiod: bump to version 1.6.2
2021-02-01 10:29 ` Michael Nosthoff
@ 2021-02-01 13:39 ` Michael Nosthoff
2021-02-02 15:41 ` Bartosz Golaszewski
0 siblings, 1 reply; 5+ messages in thread
From: Michael Nosthoff @ 2021-02-01 13:39 UTC (permalink / raw)
To: buildroot
Bartosz,
I just noticed there is another build issue with the 1.6.2 release and I'm trying to get my head around how to best fix it.
When I make a clean build with C++ enabled the Buildroot build fails with this messages:
make[5]: Entering directory '/build/output/build/libgpiod-1.6.2/bindings/cxx/examples'
/build/output/host/bin/arm-none-linux-gnueabihf-g++ -DHAVE_CONFIG_H -I. -I../../.. -I../../../bindings/cxx/ -I../../../include -Wall -Wextra -g -std=gnu++11 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D
_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -c -o gpiodetectcxx.o gpiodetectcxx.cpp
/build/output/host/bin/arm-none-linux-gnueabihf-g++ -DHAVE_CONFIG_H -I. -I../../.. -I../../../bindings/cxx/ -I../../../include -Wall -Wextra -g -std=gnu++11 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D
_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -c -o gpiofindcxx.o gpiofindcxx.cpp
/build/output/host/bin/arm-none-linux-gnueabihf-g++ -DHAVE_CONFIG_H -I. -I../../.. -I../../../bindings/cxx/ -I../../../include -Wall -Wextra -g -std=gnu++11 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D
_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -c -o gpiogetcxx.o gpiogetcxx.cpp
/build/output/host/bin/arm-none-linux-gnueabihf-g++ -DHAVE_CONFIG_H -I. -I../../.. -I../../../bindings/cxx/ -I../../../include -Wall -Wextra -g -std=gnu++11 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D
_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -c -o gpioinfocxx.o gpioinfocxx.cpp
/build/output/host/bin/arm-none-linux-gnueabihf-g++ -DHAVE_CONFIG_H -I. -I../../.. -I../../../bindings/cxx/ -I../../../include -Wall -Wextra -g -std=gnu++11 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D
_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -c -o gpiomoncxx.o gpiomoncxx.cpp
/build/output/host/bin/arm-none-linux-gnueabihf-g++ -DHAVE_CONFIG_H -I. -I../../.. -I../../../bindings/cxx/ -I../../../include -Wall -Wextra -g -std=gnu++11 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D
_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -c -o gpiosetcxx.o gpiosetcxx.cpp
/bin/bash ../../../libtool --tag=CXX --mode=link /build/output/host/bin/arm-none-linux-gnueabihf-g++ -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -lgpiodcxx -L../../../bindings/cxx/ -o gpiofindcxx gpiofindcxx.o
/bin/bash ../../../libtool --tag=CXX --mode=link /build/output/host/bin/arm-none-linux-gnueabihf-g++ -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -lgpiodcxx -L../../../bindings/cxx/ -o gpiodetectcxx gpiodetectcxx.o
libtool: link: /build/output/host/bin/arm-none-linux-gnueabihf-g++ -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -o gpiofindcxx gpiofindcxx.o /build/output/build/libgpiod-1.6.2/bindings/cxx/.libs/li
bgpiodcxx.so -L../../../bindings/cxx/ -Wl,-rpath -Wl,/build/output/build/libgpiod-1.6.2/bindings/cxx/.libs
/bin/bash ../../../libtool --tag=CXX --mode=link /build/output/host/bin/arm-none-linux-gnueabihf-g++ -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -lgpiodcxx -L../../../bindings/cxx/ -o gpioinfocxx gpioinfocxx.o
libtool: link: /build/output/host/bin/arm-none-linux-gnueabihf-g++ -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -o gpiodetectcxx gpiodetectcxx.o /build/output/build/libgpiod-1.6.2/bindings/cxx/.lib
s/libgpiodcxx.so -L../../../bindings/cxx/ -Wl,-rpath -Wl,/build/output/build/libgpiod-1.6.2/bindings/cxx/.libs
/build/output/host/opt/ext-toolchain/bin/../lib/gcc/arm-none-linux-gnueabihf/9.2.1/../../../../arm-none-linux-gnueabihf/bin/ld: /build/output/build/libgpiod-1.6.2/bindings/cxx/.libs/libgpiodcxx.so: undefined reference to `
gpiod_line_bias'
/build/output/host/opt/ext-toolchain/bin/../lib/gcc/arm-none-linux-gnueabihf/9.2.1/../../../../arm-none-linux-gnueabihf/bin/ld: /build/output/build/libgpiod-1.6.2/bindings/cxx/.libs/libgpiodcxx.so: undefined reference to `
gpiod_line_set_direction_output_bulk'
/build/output/host/opt/ext-toolchain/bin/../lib/gcc/arm-none-linux-gnueabihf/9.2.1/../../../../arm-none-linux-gnueabihf/bin/ld: /build/output/build/libgpiod-1.6.2/bindings/cxx/.libs/libgpiodcxx.so: undefined reference to `
gpiod_line_set_config_bulk'
/build/output/host/opt/ext-toolchain/bin/../lib/gcc/arm-none-linux-gnueabihf/9.2.1/../../../../arm-none-linux-gnueabihf/bin/ld: /build/output/build/libgpiod-1.6.2/bindings/cxx/.libs/libgpiodcxx.so: undefined reference to `
gpiod_line_set_direction_input_bulk'
/build/output/host/opt/ext-toolchain/bin/../lib/gcc/arm-none-linux-gnueabihf/9.2.1/../../../../arm-none-linux-gnueabihf/bin/ld: /build/output/build/libgpiod-1.6.2/bindings/cxx/.libs/libgpiodcxx.so: undefined reference to `
gpiod_line_event_read_multiple'
/build/output/host/opt/ext-toolchain/bin/../lib/gcc/arm-none-linux-gnueabihf/9.2.1/../../../../arm-none-linux-gnueabihf/bin/ld: /build/output/build/libgpiod-1.6.2/bindings/cxx/.libs/libgpiodcxx.so: undefined reference to `
gpiod_line_set_flags_bulk'
collect2: error: ld returned 1 exit status
When building regularly on a clean Linux system I don't have any troubles.
If I build on a Buildroot target which already has some version of libgpiod built it works. (e.g. when bumping the version without make clean).
So it seems that the build doesn't find the libgpiod.so that was just built inside the build directory. My guess is it has something to do with the libtools workarounds for cross-compiling (My knowledge of autotools/libtool is limited here.).
But before I dig deeper into why this fails my question would be: does the bindings/cpp/examples directory really need to be build? In the 1.4.x branch it was not built by default. Now it is changed to a "noinst" target. So it gets build but won't be deployed to the target anyways.
Maybe you have an Idea how this could be easily fixed. My (not so nice) solution for now would be to patch out the examples directory. But this is really a last ressort...
Regards,
Michael
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Buildroot] [PATCH] package/libgpiod: bump to version 1.6.2
2021-02-01 13:39 ` Michael Nosthoff
@ 2021-02-02 15:41 ` Bartosz Golaszewski
0 siblings, 0 replies; 5+ messages in thread
From: Bartosz Golaszewski @ 2021-02-02 15:41 UTC (permalink / raw)
To: buildroot
On Mon, Feb 1, 2021 at 2:39 PM Michael Nosthoff <buildroot@heine.tech> wrote:
>
> Bartosz,
>
> I just noticed there is another build issue with the 1.6.2 release and I'm trying to get my head around how to best fix it.
>
> When I make a clean build with C++ enabled the Buildroot build fails with this messages:
>
> make[5]: Entering directory '/build/output/build/libgpiod-1.6.2/bindings/cxx/examples'
> /build/output/host/bin/arm-none-linux-gnueabihf-g++ -DHAVE_CONFIG_H -I. -I../../.. -I../../../bindings/cxx/ -I../../../include -Wall -Wextra -g -std=gnu++11 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D
> _LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -c -o gpiodetectcxx.o gpiodetectcxx.cpp
> /build/output/host/bin/arm-none-linux-gnueabihf-g++ -DHAVE_CONFIG_H -I. -I../../.. -I../../../bindings/cxx/ -I../../../include -Wall -Wextra -g -std=gnu++11 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D
> _LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -c -o gpiofindcxx.o gpiofindcxx.cpp
> /build/output/host/bin/arm-none-linux-gnueabihf-g++ -DHAVE_CONFIG_H -I. -I../../.. -I../../../bindings/cxx/ -I../../../include -Wall -Wextra -g -std=gnu++11 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D
> _LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -c -o gpiogetcxx.o gpiogetcxx.cpp
> /build/output/host/bin/arm-none-linux-gnueabihf-g++ -DHAVE_CONFIG_H -I. -I../../.. -I../../../bindings/cxx/ -I../../../include -Wall -Wextra -g -std=gnu++11 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D
> _LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -c -o gpioinfocxx.o gpioinfocxx.cpp
> /build/output/host/bin/arm-none-linux-gnueabihf-g++ -DHAVE_CONFIG_H -I. -I../../.. -I../../../bindings/cxx/ -I../../../include -Wall -Wextra -g -std=gnu++11 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D
> _LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -c -o gpiomoncxx.o gpiomoncxx.cpp
> /build/output/host/bin/arm-none-linux-gnueabihf-g++ -DHAVE_CONFIG_H -I. -I../../.. -I../../../bindings/cxx/ -I../../../include -Wall -Wextra -g -std=gnu++11 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D
> _LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -c -o gpiosetcxx.o gpiosetcxx.cpp
> /bin/bash ../../../libtool --tag=CXX --mode=link /build/output/host/bin/arm-none-linux-gnueabihf-g++ -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -lgpiodcxx -L../../../bindings/cxx/ -o gpiofindcxx gpiofindcxx.o
> /bin/bash ../../../libtool --tag=CXX --mode=link /build/output/host/bin/arm-none-linux-gnueabihf-g++ -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -lgpiodcxx -L../../../bindings/cxx/ -o gpiodetectcxx gpiodetectcxx.o
>
> libtool: link: /build/output/host/bin/arm-none-linux-gnueabihf-g++ -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -o gpiofindcxx gpiofindcxx.o /build/output/build/libgpiod-1.6.2/bindings/cxx/.libs/li
> bgpiodcxx.so -L../../../bindings/cxx/ -Wl,-rpath -Wl,/build/output/build/libgpiod-1.6.2/bindings/cxx/.libs
> /bin/bash ../../../libtool --tag=CXX --mode=link /build/output/host/bin/arm-none-linux-gnueabihf-g++ -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -lgpiodcxx -L../../../bindings/cxx/ -o gpioinfocxx gpioinfocxx.o
> libtool: link: /build/output/host/bin/arm-none-linux-gnueabihf-g++ -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -o gpiodetectcxx gpiodetectcxx.o /build/output/build/libgpiod-1.6.2/bindings/cxx/.lib
> s/libgpiodcxx.so -L../../../bindings/cxx/ -Wl,-rpath -Wl,/build/output/build/libgpiod-1.6.2/bindings/cxx/.libs
> /build/output/host/opt/ext-toolchain/bin/../lib/gcc/arm-none-linux-gnueabihf/9.2.1/../../../../arm-none-linux-gnueabihf/bin/ld: /build/output/build/libgpiod-1.6.2/bindings/cxx/.libs/libgpiodcxx.so: undefined reference to `
> gpiod_line_bias'
> /build/output/host/opt/ext-toolchain/bin/../lib/gcc/arm-none-linux-gnueabihf/9.2.1/../../../../arm-none-linux-gnueabihf/bin/ld: /build/output/build/libgpiod-1.6.2/bindings/cxx/.libs/libgpiodcxx.so: undefined reference to `
> gpiod_line_set_direction_output_bulk'
> /build/output/host/opt/ext-toolchain/bin/../lib/gcc/arm-none-linux-gnueabihf/9.2.1/../../../../arm-none-linux-gnueabihf/bin/ld: /build/output/build/libgpiod-1.6.2/bindings/cxx/.libs/libgpiodcxx.so: undefined reference to `
> gpiod_line_set_config_bulk'
> /build/output/host/opt/ext-toolchain/bin/../lib/gcc/arm-none-linux-gnueabihf/9.2.1/../../../../arm-none-linux-gnueabihf/bin/ld: /build/output/build/libgpiod-1.6.2/bindings/cxx/.libs/libgpiodcxx.so: undefined reference to `
> gpiod_line_set_direction_input_bulk'
> /build/output/host/opt/ext-toolchain/bin/../lib/gcc/arm-none-linux-gnueabihf/9.2.1/../../../../arm-none-linux-gnueabihf/bin/ld: /build/output/build/libgpiod-1.6.2/bindings/cxx/.libs/libgpiodcxx.so: undefined reference to `
> gpiod_line_event_read_multiple'
> /build/output/host/opt/ext-toolchain/bin/../lib/gcc/arm-none-linux-gnueabihf/9.2.1/../../../../arm-none-linux-gnueabihf/bin/ld: /build/output/build/libgpiod-1.6.2/bindings/cxx/.libs/libgpiodcxx.so: undefined reference to `
> gpiod_line_set_flags_bulk'
> collect2: error: ld returned 1 exit status
>
>
> When building regularly on a clean Linux system I don't have any troubles.
> If I build on a Buildroot target which already has some version of libgpiod built it works. (e.g. when bumping the version without make clean).
> So it seems that the build doesn't find the libgpiod.so that was just built inside the build directory. My guess is it has something to do with the libtools workarounds for cross-compiling (My knowledge of autotools/libtool is limited here.).
>
>
> But before I dig deeper into why this fails my question would be: does the bindings/cpp/examples directory really need to be build? In the 1.4.x branch it was not built by default. Now it is changed to a "noinst" target. So it gets build but won't be deployed to the target anyways.
>
It doesn't need to be built and in v2.0 we already have a flag to
disable building examples (because, for example, the C++ examples in
v2.0 depend on C++17 features). It would be useful however to fix the
problem because it may manifest itself somewhere else too. I'll see
about that as soon as I find some time.
Bart
> Maybe you have an Idea how this could be easily fixed. My (not so nice) solution for now would be to patch out the examples directory. But this is really a last ressort...
>
> Regards,
> Michael
>
^ permalink raw reply [flat|nested] 5+ messages in thread
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2021-02-01 9:12 [Buildroot] [PATCH] package/libgpiod: bump to version 1.6.2 Michael Nosthoff
2021-02-01 9:55 ` Bartosz Golaszewski
2021-02-01 10:29 ` Michael Nosthoff
2021-02-01 13:39 ` Michael Nosthoff
2021-02-02 15:41 ` Bartosz Golaszewski
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