Category: Installing LinuxCNC
Hello,I am encountering a persistent linker error while building a HAL component for LinuxCNC, despite correctly identifying the location of the required function. I would appreciate any assistance from members who have experience using
. 1. The Problem I am trying to link my component, but the build fails with an "undefined reference" error for a HAL API function. 2. The Setup and Findings ItemDetails
Initial Linker OptionError Messageundefined reference to hal_export_funct
I confirmed that the function
is
not defined in
.
Function LocationI found that
is defined in the real-time library:
.
Attempted FixI updated the linker options in my build system (a
file using qmake) to include both libraries:
and
.
Resulting ErrorThe linker now reports that it
cannot find the
library.
Sheets로 내보내기 3. The Core Issue The linker path to the directory (
) is accurate, and the library file (
) containing the function is confirmed to exist there. However, the build system or linker seems unable to successfully link
.Could this issue be related to:
- A specific linker flag order required for real-time libraries?
- A misunderstanding of how the HAL and RTAPI libraries should be linked together (especially sinceis present in bothand)?
- An incorrect way to specify the library name () when using an absolute path or a custom library path () in the build system?
Any guidance on how to correctly force the linker to recognize and use
for
would be greatly appreciated.Thank you.
