undefined reference to `_allmul' build error

When I compile in RTE mode, i got i build error:

C:\OpenAT\PackagesRegistry/com.wavecom.openat.ide.spm.lib.plugin.model.C-GPS-OPUS-III/3.4.0.2020/C-GPS-OPUS-III/rte_CGPS_3.0.0.3.4.lib(./rte/vc6/LockedRelease/emArith.obj)(.text[_emSqrS32]+0xc):f:\build\BYRD-2008: undefined reference to _allmul' C:\OpenAT\PackagesRegistry/com.wavecom.openat.ide.spm.lib.plugin.model.C-GPS-OPUS-III/3.4.0.2020/C-GPS-OPUS-III/rte_CGPS_3.0.0.3.4.lib(./rte/vc6/LockedRelease/emArith.obj)(.text[_emMul3]+0x8b):f:\build\BYRD-2008: undefined reference to_allmul’
C:\OpenAT\PackagesRegistry/com.wavecom.openat.ide.spm.lib.plugin.model.C-GPS-OPUS-III/3.4.0.2020/C-GPS-OPUS-III/rte_CGPS_3.0.0.3.4.lib(./rte/vc6/LockedRelease/emLsb.obj)(.text[_emMulUSLsb]+0x5a):f:\build\BYRD-2008: undefined reference to _allmul' C:\OpenAT\PackagesRegistry/com.wavecom.openat.ide.spm.lib.plugin.model.C-GPS-OPUS-III/3.4.0.2020/C-GPS-OPUS-III/rte_CGPS_3.0.0.3.4.lib(./rte/vc6/LockedRelease/emGps.obj)(.text[_emDirCos]+0x35):f:\build\BYRD-2008: undefined reference to_allmul’
collect2: ld returned 1 exit status
C:\OpenAT\PackagesRegistry\com.wavecom.openat.ide.ebs.mingw.tools\1.0.1\win32\mingw\bin\dllwrap.exe: g++ exited with status 1
Build error occurred, build is stopped

In release mode no errors. The build was sucessfull

What is hapens ?

These are Linker errors - so it looks like you have a missing or incorrect library somewhere…

Indeed it doesn’t sound like an M2M Studio issue but a C-GPS plug-in one.
Please post in the C-GPS dedicated forum, thanks.