我一直在尝试安装Perl的GD库，但一直没有成功。我已经尝试了互联网上能找到的所有方法，但都无济于事。我正在尝试获取需要GD包的Circos图形。
当我尝试通过CPAN安装它时，它会给我报错：
Running make test
PERL_DL_NONLAZY=1 /usr/bin/perl/perl "-MExtUtils::Command::MM" "-e" "test_harness(0, 'blib/lib', 'blib/arch')" t/*.t
t/GD.t ........ 1/12 Can't load './blib/arch/auto/GD/GD.bundle' for module GD: dlopen(./blib/arch/auto/GD/GD.bundle, 2): Symbol not found: _jpeg_resync_to_restart
Referenced from: /usr/lib/libgd.2.dylib
Expected in: flat namespace
in /usr/lib/libgd.2.dylib at /opt/local/lib/perl5/5.14.1/darwin-multi-2level/DynaLoader.pm line 194.
at t/GD.t line 14
Compilation failed in require at t/GD.t line 14.
BEGIN failed--compilation aborted at t/GD.t line 14.
t/GD.t ........ Dubious, test returned 2 (wstat 512, 0x200)
Failed 12/12 subtests
t/Polyline.t .. Can't load '/Users/zehira/.cpan/build/GD-2.46-mp3nuO/blib/arch/auto/GD/GD.bundle' for module GD: dlopen(/Users/zehira/.cpan/build/GD-2.46-mp3nuO/blib/arch/auto/GD/GD.bundle, 2): Symbol not found: _jpeg_resync_to_restart
Referenced from: /usr/lib/libgd.2.dylib
Expected in: flat namespace
in /usr/lib/libgd.2.dylib at /opt/local/lib/perl5/5.14.1/darwin-multi-2level/DynaLoader.pm line 194.
at /Users/zehira/.cpan/build/GD-2.46-mp3nuO/blib/lib/GD/Polyline.pm line 45
Compilation failed in require at /Users/zehira/.cpan/build/GD-2.46-mp3nuO/blib/lib/GD/Polyline.pm line 45.
BEGIN failed--compilation aborted at /Users/zehira/.cpan/build/GD-2.46-mp3nuO/blib/lib/GD/Polyline.pm line 45.
Compilation failed in require at t/Polyline.t line 10.
BEGIN failed--compilation aborted at t/Polyline.t line 10.
t/Polyline.t .. Dubious, test returned 2 (wstat 512, 0x200)
Failed 1/1 subtests
Test Summary Report
-------------------
t/GD.t (Wstat: 512 Tests: 1 Failed: 1)
Failed test: 1
Non-zero exit status: 2
Parse errors: Bad plan. You planned 12 tests but ran 1.
t/Polyline.t (Wstat: 512 Tests: 0 Failed: 0)
Non-zero exit status: 2
Parse errors: Bad plan. You planned 1 tests but ran 0.
Files=2, Tests=1, 0 wallclock secs ( 0.02 usr 0.01 sys + 0.04 cusr 0.01 csys = 0.08 CPU)
Result: FAIL
Failed 2/2 test programs. 1/1 subtests failed.
make: *** [test_dynamic] Error 2
LDS/GD-2.46.tar.gz
make test -- NOT OK
//hint// to see the cpan-testers results for installing this module, try:
reports LDS/GD-2.46.tar.gz
Running make install
make test had returned bad status, won't install without force
Failed during this command:
LDS/GD-2.46.tar.gz : make_test NO
我尝试使用 --enable-shared --enable-static 选项重新安装jpeg库，但也无济于事。我还安装了MacPorts版本的perl，以为可能是我搞乱了自带的mac perl安装。有人知道这可能是为什么吗？
(是的，我对终端和所有这些都比较陌生，仍在努力适应)
谢谢！