Saya membangun perpustakaan spasial kemudian perpustakaan gdal dengan dukungan spasial. Juga dibangun mapserver yang bergantung pada gdal dengan sukses. Tidak ada masalah dengan penautan.
Ketika saya mencoba menjalankan utilitas gdal saya mendapatkan:
$ ogrinfo.exe
/usr/local/bin/ogrinfo.exe: error while loading shared libraries: cyggdal-1.dll: cannot open shared object file: No such file or directory
Tapi semuanya tampak baik-baik saja:
$ ldd /usr/local/bin/ogrinfo.exe
ntdll.dll => /cygdrive/c/WINDOWS/system32/ntdll.dll (0x7c900000)
kernel32.dll => /cygdrive/c/WINDOWS/system32/kernel32.dll (0x7c800000)
cyggdal-1.dll => /usr/local/bin/cyggdal-1.dll (0x710c0000)
cygcurl-4.dll => /usr/bin/cygcurl-4.dll (0x63d80000)
cyggcc_s-1.dll => /usr/bin/cyggcc_s-1.dll (0x67f00000)
cygwin1.dll => /usr/bin/cygwin1.dll (0x61000000)
ADVAPI32.DLL => /cygdrive/c/WINDOWS/system32/ADVAPI32.DLL (0x77dd0000)
RPCRT4.dll => /cygdrive/c/WINDOWS/system32/RPCRT4.dll (0x77e70000)
Secur32.dll => /cygdrive/c/WINDOWS/system32/Secur32.dll (0x77fe0000)
cygcrypto-0.9.8.dll => /usr/bin/cygcrypto-0.9.8.dll (0x6ba40000)
cygidn-11.dll => /usr/bin/cygidn-11.dll (0x6c200000)
cygiconv-2.dll => /usr/bin/cygiconv-2.dll (0x674c0000)
cygintl-8.dll => /usr/bin/cygintl-8.dll (0x6f5c0000)
cygssh2-1.dll => /usr/bin/cygssh2-1.dll (0x69ec0000)
cygz.dll => /usr/bin/cygz.dll (0x692c0000)
cygssl-0.9.8.dll => /usr/bin/cygssl-0.9.8.dll (0x63400000)
cygexpat-1.dll => /usr/bin/cygexpat-1.dll (0x66ec0000)
cyggeos_c-1.dll => /usr/bin/cyggeos_c-1.dll (0x70180000)
cyggeos-3-1-1.dll => /usr/bin/cyggeos-3-1-1.dll (0x4e0000)
cygjpeg-7.dll => /usr/bin/cygjpeg-7.dll (0x66e00000)
cygpng12.dll => /usr/bin/cygpng12.dll (0x6f200000)
Jika saya menyalin cyggdal-1.dll ke folder saat ini:
$ ogrinfo.exe
/usr/local/bin/ogrinfo.exe: error while loading shared libraries: ?: cannot open shared object file: No such file or directory
Jadi, apa itu '?' Perpustakaan?
$ ldd cyggdal-1.dll
ntdll.dll => /cygdrive/c/WINDOWS/system32/ntdll.dll (0x7c900000)
kernel32.dll => /cygdrive/c/WINDOWS/system32/kernel32.dll (0x7c800000)
??? => ??? (0x710c0000)
??? => ??? (0x63d80000)
??? => ??? (0x67f00000)
??? => ??? (0x61000000)
??? => ??? (0x77dd0000)
??? => ??? (0x77e70000)
??? => ??? (0x77fe0000)
??? => ??? (0x6ba40000)
??? => ??? (0x6c200000)
??? => ??? (0x674c0000)
??? => ??? (0x6f5c0000)
??? => ??? (0x69ec0000)
??? => ??? (0x692c0000)
??? => ??? (0x63400000)
??? => ??? (0x66ec0000)
??? => ??? (0x70180000)
??? => ??? (0x4b0000)
??? => ??? (0x66e00000)
??? => ??? (0x6f200000)
Apa ini "???" ? Bagaimana cara mengatasi masalah ini?