[LinuxCNC/linuxcnc Issue#181] Building LinuxCNC About GRBL HAL

Issue #181 | 状态: 已关闭 | 作者: CNC-432 | 创建时间: 2016-10-16

标签: pull-request-welcome

Hi! I’m trying to build LinuxCNC. It’s failing at the linking stage.

Here are the steps I follow to reproduce the issue:

> ./autogen.sh
>
> CFLAGS=”-O2 -fPIC” \
> CXXFLAGS=”-O2 -fPIC” \
> ./configure \
> –prefix=/usr \
> –libdir=/usr/lib64 \
> –sysconfdir=/etc \
> –localstatedir=/var \
> –mandir=/usr/man \
> –docdir=/usr/doc/linuxcnc-2.7.7 \
> –enable-shared \
> –disable-static \
> –enable-non-distributable=yes \
> –with-realtime=uspace \
> –with-x \
> –build=x86_64-slackware-linux
>
> make

log-configure-linuxcnc.txt
log-make-linuxcnc.txt

Information about my hardware and software:

– I am using this Linux distribution and version: Slackware 14.1
– I am using this kernel version: Linux 3.10.17 x86_64
– I am using this LinuxCNC version: linuxcnc-2.7.7.tar.gz

#1 – jepler 于 2016-10-16

The error is:

Linking rs274
/usr/lib64/gcc/x86_64-slackware-linux/4.8.2/../../../../lib64/libreadline.so: undefined reference to tgetnum'



similar to https://bugzilla.redhat.com/show_bug.cgi?id=499837 -- As noted there, Debian and debian-derived) platforms do not have this problem due to different decisions about library linking.

The fix would involve setting an appropriate value for READLINE_LIBS in configure`.
I will be happy to review any proposed pull request, but I don't personally use slackware or have access to any slackware systems.

#2 - CNC-432 于 2016-10-18

Thanks for clarifying what is causing this.

Patch:

> --- a/linuxcnc-2.7.7/src/emc/sai/Submakefile 2016-09-08 04:12:38.000000000 +0300
> +++ b/linuxcnc-2.7.7/src/emc/sai/Submakefile 2016-10-18 17:31:38.000000000 +0300
> @@ -3,7 +3,7 @@
> SAISRCS := $(addprefix emc/sai/, saicanon.cc driver.cc dummyemcstat.cc) \
> emc/rs274ngc/tool_parse.cc emc/task/taskmodule.cc emc/task/taskclass.cc
> USERSRCS += $(SAISRCS)
> -LIBREADLINE=-lreadline
> +LIBREADLINE=$(READLINE_LIBS)
>
> ../bin/rs274: $(call TOOBJS, $(SAISRCS)) ../lib/librs274.so.0 ../lib/liblinuxcnc.a ../lib/libnml.so.0 \
> ../lib/liblinuxcnchal.so.0 ../lib/liblinuxcncini.so.0 ../lib/libpyplugin.so.0

#3 - jepler 于 2016-10-18

Thanks. Fixed in our master branch.

原始Issue: https://github.com/LinuxCNC/linuxcnc/issues/181

Here are the steps I follow to reproduce the issue:

Information about my hardware and software:

评论 (3)

Patch: