編譯libgphoto2 / examples時未定義的參考

Question

我的問題是關於https://github.com/gphoto/libgphoto2/tree/master/examples的 gphoto2中的libgphoto2

我嘗試編譯“ libgphoto2 / examples / lunkwill-canon-capture.c”（基本上，libgphoto2 / example中的所有.c文件都顯示相同的錯誤）

gcc -Wall -o TESTOUTPUT -lgphoto2 sample-trigger-capture.c（如libgphoto2手冊所建議）

我有錯誤

/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

我做錯了什么？ 最好的祝福

Answer 1

嘗試此命令

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

您錯過了包含“ gphoto2_port”的信息