Question

我的问题是来自https://github.com/gphoto/libgphoto2/tree/master/examples

的gphoto2中的libgphoto2

我尝试编译＆＃34; libgphoto2 / examples / lunkwill-canon-capture.c＆＃34; （基本上libgphoto2 / example中的所有.c文件都显示相同的错误）

gcc -Wall -o TESTOUTPUT -lgphoto2 sample-trigger-capture.c（如libgphoto2手册所示）

我收到了错误

/tmp/ccg65O2b.o: In function `wait_event_and_download':
sample-trigger-capture.c:(.text+0xad): undefined reference to `gp_camera_wait_for_event'
sample-trigger-capture.c:(.text+0x371): undefined reference to `gp_camera_file_read'
sample-trigger-capture.c:(.text+0x57b): undefined reference to `gp_camera_file_delete'
/tmp/ccg65O2b.o: In function `main':
sample-trigger-capture.c:(.text+0x607): undefined reference to `sample_create_context'
sample-trigger-capture.c:(.text+0x64c): undefined reference to `gp_log_add_func'
sample-trigger-capture.c:(.text+0x658): undefined reference to `gp_camera_new'
sample-trigger-capture.c:(.text+0x66b): undefined reference to `gp_camera_init'
sample-trigger-capture.c:(.text+0x6db): undefined reference to `gp_camera_trigger_capture'
sample-trigger-capture.c:(.text+0x799): undefined reference to `gp_camera_exit'
collect2: error: ld returned 1 exit status

我做错了什么？最好的问候

Answer 1

尝试此命令

gcc -Wall -o TESTOUTPUT sample-trigger-capture.c -lgphoto2 -lgphoto2_port

您错过了包含'gphoto2_port'

编译libgphoto2 / examples时未定义的引用

1 个答案: