当我尝试从源码编译更新rgdal软件包时，升级了R版本从3.4.4到3.5.1，我遇到了一个奇怪问题，所有步骤都进行得很好，但由于“未定义的符号”错误，命名空间加载失败：
** installing vignettes
** testing if installed package can be loaded
Error: package or namespace load failed for ‘rgdal’ in dyn.load(file, DLLpath = DLLpath, ...):
unable to load shared object '/usr/local/lib/R/site-library/rgdal/libs/rgdal.so':
/usr/local/lib/R/site-library/rgdal/libs/rgdal.so: undefined symbol: _ZNK10OGRFeature16GetFieldAsDoubleEi
Error: loading failed
Execution halted
ERROR: loading failed
* removing ‘/usr/local/lib/R/site-library/rgdal’
* restoring previous ‘/usr/local/lib/R/site-library/rgdal’
The downloaded source packages are in
‘/tmp/RtmpHu6D0N/downloaded_packages’
Warning message:
In install.packages("rgdal") :
installation of package ‘rgdal’ had non-zero exit status
当我运行
echo _ZNK10OGRFeature16GetFieldAsDoubleEi | c++filt时，输出结果为OGRFeature::GetFieldAsDouble(int) const，这并没有告诉我太多信息。我按照CRAN包网站上的建议从https://trac.osgeo.org/gdal/wiki/DownloadSource安装了GDAL 2.3.1版本。由于软件包已经安装好了，所以更新失败似乎有些奇怪，因为应该已经满足了依赖关系。如果您对解决此问题有任何指导意见，欢迎分享。
由于过去几周没有收到建议，我决定卸载rgdal并重新安装。有趣的是，现在出现一个错误提示，称我的系统（Ubuntu 16.04.5 LTS）不支持C++11，但检查显示它是存在的(
C++11 support available)：* installing *source* package ‘rgdal’ ...
** package ‘rgdal’ successfully unpacked and MD5 sums checked
configure: R_HOME: /usr/lib/R
configure: CC: gcc -std=gnu99
configure: CXX: g++
configure: C++11 support available
configure: rgdal: 1.3-4
checking for /usr/bin/svnversion... yes
configure: svn revision: 766
checking for gdal-config... /usr/local/bin/gdal-config
checking gdal-config usability... yes
configure: GDAL: 2.3.1
checking C++11 support for GDAL >= 2.3.0... yes
checking GDAL version >= 1.11.4... yes
checking gdal: linking with --libs only... no
checking gdal: linking with --libs and --dep-libs... no
In file included from /usr/local/include/gdal.h:45:0,
from gdal_test.cc:1:
/usr/local/include/cpl_port.h:187:6: error: #error Must have C++11 or newer.
# error Must have C++11 or newer.
^
In file included from /usr/local/include/gdal.h:49:0,
from gdal_test.cc:1:
/usr/local/include/cpl_minixml.h:202:47: error: expected template-name before '<' token
class CPLXMLTreeCloser: public std::unique_ptr<CPLXMLNode, CPLXMLTreeCloserDeleter>
^
/usr/local/include/cpl_minixml.h:202:47: error: expected '{' before '<' token
/usr/local/include/cpl_minixml.h:202:47: error: expected unqualified-id before '<' token
In file included from /usr/local/include/ogr_api.h:45:0,
from /usr/local/include/gdal.h:50,
from gdal_test.cc:1:
/usr/local/include/ogr_core.h:79:28: error: expected '}' before end of line
/usr/local/include/ogr_core.h:79:28: error: expected declaration before end of line
In file included from /usr/local/include/gdal.h:45:0,
from gdal_test.cc:1:
/usr/local/include/cpl_port.h:187:6: error: #error Must have C++11 or newer.
# error Must have C++11 or newer.
^
In file included from /usr/local/include/gdal.h:49:0,
from gdal_test.cc:1:
/usr/local/include/cpl_minixml.h:202:47: error: expected template-name before '<' token
class CPLXMLTreeCloser: public std::unique_ptr<CPLXMLNode, CPLXMLTreeCloserDeleter>
^
/usr/local/include/cpl_minixml.h:202:47: error: expected '{' before '<' token
/usr/local/include/cpl_minixml.h:202:47: error: expected unqualified-id before '<' token
In file included from /usr/local/include/ogr_api.h:45:0,
from /usr/local/include/gdal.h:50,
from gdal_test.cc:1:
/usr/local/include/ogr_core.h:79:28: error: expected '}' before end of line
/usr/local/include/ogr_core.h:79:28: error: expected declaration before end of line
configure: Install failure: compilation and/or linkage problems.
configure: error: GDALAllRegister not found in libgdal.
ERROR: configuration failed for package ‘rgdal’
* removing ‘/usr/local/lib/R/site-library/rgdal’
我的devtools::session_info()如下：
Session info ------------------------------------------------------------------
setting value
version R version 3.5.1 (2018-07-02)
system x86_64, linux-gnu
ui X11
language en_US:en
collate en_US.UTF-8
tz Europe/Brussels
date 2018-07-28
Packages ----------------------------------------------------------------------
package * version date source
base * 3.5.1 2018-07-03 local
compiler 3.5.1 2018-07-03 local
datasets * 3.5.1 2018-07-03 local
devtools * 1.13.6 2018-06-27 CRAN (R 3.5.1)
digest 0.6.15 2018-01-28 CRAN (R 3.5.1)
graphics * 3.5.1 2018-07-03 local
grDevices * 3.5.1 2018-07-03 local
memoise 1.1.0 2017-04-21 CRAN (R 3.5.1)
methods * 3.5.1 2018-07-03 local
stats * 3.5.1 2018-07-03 local
tools 3.5.1 2018-07-03 local
utils * 3.5.1 2018-07-03 local
withr 2.1.2 2018-03-15 CRAN (R 3.5.1)