使用cpp代码编译和链接R包时出现奇怪的SHLIB行为

Question

我正在编译一个包含来自第三方的.cpp源文件的R包。为了将.cpp文件编译成静态库，我使用了Makevars.win文件(link)。当我试图修复另一个与并行make相关的问题时，我偶然发现了SHLIB在Windows上的一个奇怪行为，这个问题显示我有一个错误的括号，在Makevars和Makevars.win文件(link)中将$(SHLIB)定义为($SHLIB)。

长话短说，我在我的Makevars和Makevars.win文件中错误地将$(SHLIB)写成了($SHILB)。纠正这个错误在Linux和OSX机器上没有错误，但在Windows ($SHLIB)上可以工作，但$(SHLIB)给了我以下错误：

C:\Rtools\mingw_64\bin\nm.exe: cvode_bandpre_impl.h: File format not recognized
C:\Rtools\mingw_64\bin\nm.exe: cvode_bbdpre_impl.h: File format not recognized
C:\Rtools\mingw_64\bin\nm.exe: cvode_diag_impl.h: File format not recognized
C:\Rtools\mingw_64\bin\nm.exe: cvode_direct_impl.h: File format not recognized
C:\Rtools\mingw_64\bin\nm.exe: cvode_impl.h: File format not recognized
C:\Rtools\mingw_64\bin\nm.exe: cvode_spils_impl.h: File format not recognized
C:\Rtools\mingw_64\bin\nm.exe: cvode.h: File format not recognized
C:\Rtools\mingw_64\bin\nm.exe: cvode_bandpre.h: File format not recognized
C:\Rtools\mingw_64\bin\nm.exe: cvode_bbdpre.h: File format not recognized
C:\Rtools\mingw_64\bin\nm.exe: cvode_diag.h: File format not recognized
C:\Rtools\mingw_64\bin\nm.exe: cvode_direct.h: File format not recognized
C:\Rtools\mingw_64\bin\nm.exe: cvode_impl.h: File format not recognized
C:\Rtools\mingw_64\bin\nm.exe: cvode_spils.h: File format not recognized
C:\Rtools\mingw_64\bin\nm.exe: fnvector_serial.h: File format not recognized
C:\Rtools\mingw_64\bin\nm.exe: nvector_serial.h: File format not recognized
C:\Rtools\mingw_64\bin\nm.exe: sundials_band.h: File format not recognized
C:\Rtools\mingw_64\bin\nm.exe: sundials_config.h: File format not recognized
C:\Rtools\mingw_64\bin\nm.exe: sundials_dense.h: File format not recognized
C:\Rtools\mingw_64\bin\nm.exe: sundials_direct.h: File format not recognized
C:\Rtools\mingw_64\bin\nm.exe: sundials_fconfig.h: File format not recognized
C:\Rtools\mingw_64\bin\nm.exe: sundials_fnvector.h: File format not recognized
C:\Rtools\mingw_64\bin\nm.exe: sundials_iterative.h: File format not recognized
C:\Rtools\mingw_64\bin\nm.exe: sundials_linearsolver.h: File format not recognized
C:\Rtools\mingw_64\bin\nm.exe: sundials_math.h: File format not recognized
C:\Rtools\mingw_64\bin\nm.exe: sundials_matrix.h: File format not recognized
C:\Rtools\mingw_64\bin\nm.exe: sundials_nvector.h: File format not recognized
C:\Rtools\mingw_64\bin\nm.exe: sundials_pcg.h: File format not recognized
C:\Rtools\mingw_64\bin\nm.exe: sundials_sparse.h: File format not recognized
C:\Rtools\mingw_64\bin\nm.exe: sundials_spbcgs.h: File format not recognized
C:\Rtools\mingw_64\bin\nm.exe: sundials_spfgmr.h: File format not recognized
C:\Rtools\mingw_64\bin\nm.exe: sundials_spgmr.h: File format not recognized
C:\Rtools\mingw_64\bin\nm.exe: sundials_sptfqmr.h: File format not recognized
C:\Rtools\mingw_64\bin\nm.exe: sundials_types.h: File format not recognized
C:\Rtools\mingw_64\bin\nm.exe: sundials_version.h: File format not recognized
C:\Rtools\mingw_64\bin\nm.exe: fsunlinsol_dense.h: File format not recognized
C:\Rtools\mingw_64\bin\nm.exe: sunlinsol_band.h: File format not recognized
C:\Rtools\mingw_64\bin\nm.exe: sunlinsol_dense.h: File format not recognized
C:\Rtools\mingw_64\bin\nm.exe: sunlinsol_pcg.h: File format not recognized
C:\Rtools\mingw_64\bin\nm.exe: sunlinsol_spbcgs.h: File format not recognized
C:\Rtools\mingw_64\bin\nm.exe: sunlinsol_spfgmr.h: File format not recognized
C:\Rtools\mingw_64\bin\nm.exe: sunlinsol_spgmr.h: File format not recognized
C:\Rtools\mingw_64\bin\nm.exe: sunlinsol_sptfqmr.h: File format not recognized
C:\Rtools\mingw_64\bin\nm.exe: fsunmatrix_dense.h: File format not recognized
C:\Rtools\mingw_64\bin\nm.exe: fsunmatrix_band.h: File format not recognized
C:\Rtools\mingw_64\bin\nm.exe: sunmatrix_band.h: File format not recognized
C:\Rtools\mingw_64\bin\nm.exe: sunmatrix_dense.h: File format not recognized
C:\Rtools\mingw_64\bin\nm.exe: sunmatrix_sparse.h: File format not recognized
c:/Rtools/mingw_64/bin/g++ -shared -s -static-libgcc -o sundialr.dll tmp.def cvode.o RcppExports.o -LC:/PROGRA~1/R/R-34~1.1/bin/x64 -lRlapack -LC:/PROGRA~1/R/R-34~1.1/bin/x64 -lRblas -lgfortran -lm -lquadmath -L../inst/ -lsundials_all -Ld:/Compiler/gcc-4.9.3/local330/lib/x64 -Ld:/Compiler/gcc-4.9.3/local330/lib -LC:/PROGRA~1/R/R-34~1.1/bin/x64 -lR
../inst//libsundials_all.a(cvode_bandpre.o):cvode_bandpre.c:(.text+0x679): undefined reference to `SUNBandLinearSolver'
../inst//libsundials_all.a(cvode_bandpre.o):cvode_bandpre.c:(.text+0x360): undefined reference to `SUNLinSolSetup_Band'
../inst//libsundials_all.a(cvode_bbdpre.o):cvode_bbdpre.c:(.text+0x819): undefined reference to `SUNBandLinearSolver'
../inst//libsundials_all.a(cvode_bbdpre.o):cvode_bbdpre.c:(.text+0x2ea): undefined reference to `SUNLinSolSetup_Band'
collect2.exe: error: ld returned 1 exit status
no DLL was created
ERROR: compilation failed for package 'sundialr'

我知道undefined reference错误消息是链接错误，但我不确定为什么我会收到头文件的File format not recognized错误消息。更有趣的是，当Makevars.win文档讨论的是$(SHLIB)而不是($SHLIB)时，为什么在Makevars.win文件中用($SHLIB)替换$(SHLIB)就可以很好地工作。事实上，这个包通过了所有的CRAN检查，直到最近才在Makevars.win中的($SHLIB)上运行。

谁能解释为什么会发生这种情况，以及我如何解决现在使用$(SHLIB)时遇到的错误。我想替换代码中错误的($SHLIB)。谢谢!

Answer 1

您的SOURCES_*变量混合了.c和.h文件。.c将替换为OBJECTS_SUNDIALS_ALL的.o，但.h文件仍保留不变。在构建静态库时，这些似乎会让nm.exe感到困惑。如果从SOURCES_*变量中删除.h文件，File format not recognized消息应该会消失。