GCC 8 release notes indicate that C++17 support is still be a bit
experimental for the standard library. Anyway, can you try
https://github.com/OSGeo/gdal/pull/12231 ? I don't have access to your
compiler so I couldn't check with it, but I'd assume it should make
template deduction easier for the compiler.
Le 30/04/2025 à 05:10, Fengting Chen a écrit :
I am using “c++ (GCC) 8.5.0 20210514 (Red Hat 8.5.0-18.0.6)” which is
supposed to support C++17.
*From: *Even Rouault <even.roua...@spatialys.com>
*Date: *Tuesday, April 29, 2025 at 6:10 PM
*To: *Fengting Chen <fengting.c...@oracle.com>,
gdal-dev@lists.osgeo.org <gdal-dev@lists.osgeo.org>
*Subject: *[External] : Re: [gdal-dev] Build failed with "cannot
deduce template arguments" error
Which compiler and compiler version do you use ? It is likely it is
too old and doesn't fully support C++17
Le 29/04/2025 à 23:18, Fengting Chen via gdal-dev a écrit :
Hi, I am trying to build GDAL from the master branch, but got the
following error:
[ 46%] Building CXX object
alg/CMakeFiles/alg.dir/gdal_interpolateatpoint.cpp.o
In file included from
/scratch/gdal/gdal/alg/gdal_interpolateatpoint.cpp:20:
/scratch/gdal/gdal/gcore/gdal_vectorx.h: In member function
?~@~Xgdal:: VectorX<T, N>::self_type gdal::VectorX<T,
N>::operator+(T) const?~@~Y:
/scratch/gdal/gdal/gcore/gdal_vectorx.h:173:44: error: cannot
deduce template arguments for ?~@~Xplus?~@~Y from ()
return operatorImpl(arg, std::plus());
^
My configuration is:
-- Target system: Linux
-- Installation directory: /usr/local
-- C++ Compiler type: GNU
-- C compile command line: /bin/cc
-- C++ compile command line: /bin/c++
--
-- CMAKE_C_FLAGS: -fvisibility=hidden
-- CMAKE_CXX_FLAGS: -fvisibility=hidden
-- CMAKE_CXX17_STANDARD_COMPILE_OPTION: -std=c++17
-- CMAKE_CXX17_EXTENSION_COMPILE_OPTION: -std=gnu++17
-- CMAKE_EXE_LINKER_FLAGS:
-- CMAKE_MODULE_LINKER_FLAGS: -Wl,--no-undefined
-- CMAKE_SHARED_LINKER_FLAGS: -Wl,--no-undefined
-- CMAKE_STATIC_LINKER_FLAGS:
Any idea on how to fix the error?
Thanks!
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