我已经将sf和rproj永久在Mac上使用，并且自从升级到Catalina / R 3.6.2之后仍然可以使用。
我试图从CRAN和开发人员版本安装sf（0.9.0）的最新版本，并且从configure: error: libproj not found in standard or given locations.两种方式都出现错误>
我仔细阅读并删除了计算机上gdal和proj的所有最后痕迹，将二者卸载，重新安装，并且仍然是同一问题。现在，尝试安装我知道可以在计算机上使用的sf（0.8.1）的较早版本也失败了。绝对在这里难过！
GDAL 2.4.4，发布于2020/01/08
R v3.6.2
macOS 10.15.3
configure: CC: clang configure: CXX: clang++ -std=gnu++11 checking for gdal-config... /usr/local/bin/gdal-config checking gdal-config usability... yes configure: GDAL: 2.4.4 checking GDAL version >= 2.0.1... yes checking for gcc... clang checking whether the C compiler works... yes checking for C compiler default output file name... a.out checking for suffix of executables... checking whether we are cross compiling... no checking for suffix of object files... o checking whether we are using the GNU C compiler... yes checking whether clang accepts -g... yes checking for clang option to accept ISO C89... none needed checking how to run the C preprocessor... clang -E checking for grep that handles long lines and -e... /usr/bin/grep checking for egrep... /usr/bin/grep -E checking for ANSI C header files... yes checking for sys/types.h... yes checking for sys/stat.h... yes checking for stdlib.h... yes checking for string.h... yes checking for memory.h... yes checking for strings.h... yes checking for inttypes.h... yes checking for stdint.h... yes checking for unistd.h... yes checking gdal.h usability... yes checking gdal.h presence... yes checking for gdal.h... yes checking GDAL: linking with --libs only... yes checking GDAL: /usr/local/Cellar/gdal/2.4.4_2/share/gdal/pcs.csv readable... yes checking GDAL: checking whether PROJ is available for linking:... yes checking GDAL: checking whether PROJ is available fur running:... yes configure: GDAL: 2.4.4 checking proj.h usability... yes checking proj.h presence... yes checking for proj.h... yes checking PROJ: checking whether PROJ and sqlite3 are available for linking:... no configure: error: libproj not found in standard or given locations.对于
rgdal...
* installing *source* package ‘rgdal’ ...
** package ‘rgdal’ successfully unpacked and MD5 sums checked
** using staged installation
configure: R_HOME: /Library/Frameworks/R.framework/Resources
configure: CC: clang
configure: CXX: clang++ -std=gnu++11
configure: C++11 support available
configure: rgdal: 1.4-7
checking for /usr/bin/svnversion... yes
configure: svn revision: 845
checking for gdal-config... /usr/local/bin/gdal-config
checking gdal-config usability... yes
configure: GDAL: 2.4.4
checking C++11 support for GDAL >= 2.3.0... yes
checking GDAL version >= 1.11.4... yes
checking GDAL version <= 2.5 or >= 3.0... yes
checking gdal: linking with --libs only... yes
checking GDAL: gdal-config data directory readable... yes
checking GDAL: /usr/local/Cellar/gdal/2.4.4_2/share/gdal/pcs.csv readable... yes
configure: pkg-config proj not available
set PKG_CONFIG_PATH to the directory containing proj.pc
configure: PROJ version not determined using pkg-config proj
configure: proj CPP flags: -I/usr/local/Cellar/gdal/2.4.4_2/include
configure: PROJ LIBS: -lproj
checking PROJ header API:... proj_api.h
checking proj_api.h presence and usability... no
configure: error: proj_api.h not found in standard or given locations.
ERROR: configuration failed for package ‘rgdal’
* removing ‘/Library/Frameworks/R.framework/Versions/3.6/Resources/library/rgdal
我曾经让sf和rproj永远在mac上工作，但自从升级到Catalina / R 3.6.2之后，它们仍然可以工作。我试图从CRAN和dev版本安装最新版本的sf（0.9.0），并且...
[如果有其他人遇到此问题，则经过数小时的挖掘here，终于找到了解决方案。