Question

重新编译时遇到了这个错误：

gcc basic.c -o basic $（pkg-config --cflags --libs glib-2.0）-I / usr / include / neardal -std = c11

/tmp/ccUdc8fR.o: In function `start_polling':
basic.c:(.text+0x30): undefined reference to `neardal_get_adapters'
basic.c:(.text+0x64): undefined reference to `neardal_error_get_text'
basic.c:(.text+0x108): undefined reference to `neardal_get_adapter_properties'
basic.c:(.text+0x134): undefined reference to `neardal_error_get_text'
basic.c:(.text+0x198): undefined reference to `neardal_set_adapter_property'
basic.c:(.text+0x1b8): undefined reference to `neardal_error_get_text'
basic.c:(.text+0x214): undefined reference to `neardal_start_poll_loop'
basic.c:(.text+0x234): undefined reference to `neardal_error_get_text'
basic.c:(.text+0x260): undefined reference to `neardal_free_adapter'
basic.c:(.text+0x2a0): undefined reference to `neardal_free_array'
/tmp/ccUdc8fR.o: In function `record_found':
basic.c:(.text+0x7f8): undefined reference to `neardal_get_record_properties'
basic.c:(.text+0x810): undefined reference to `neardal_error_get_text'
basic.c:(.text+0x8f4): undefined reference to `neardal_free_record'
basic.c:(.text+0x924): undefined reference to `neardal_free_record'
/tmp/ccUdc8fR.o: In function `tag_found':
basic.c:(.text+0x978): undefined reference to `neardal_get_tag_properties'
basic.c:(.text+0x990): undefined reference to `neardal_error_get_text'
basic.c:(.text+0xa54): undefined reference to `neardal_tag_write'
basic.c:(.text+0xa6c): undefined reference to `neardal_error_get_text'
basic.c:(.text+0xab8): undefined reference to `neardal_free_tag'
/tmp/ccUdc8fR.o: In function `device_found':
basic.c:(.text+0xb08): undefined reference to `neardal_get_dev_properties'
basic.c:(.text+0xb20): undefined reference to `neardal_error_get_text'
basic.c:(.text+0xb54): undefined reference to `neardal_free_device'
basic.c:(.text+0xbd4): undefined reference to `neardal_dev_push'
basic.c:(.text+0xbec): undefined reference to `neardal_error_get_text'
/tmp/ccUdc8fR.o: In function `main':
basic.c:(.text+0x10f0): undefined reference to `neardal_set_cb_tag_found'
basic.c:(.text+0x1100): undefined reference to `neardal_set_cb_dev_found'
basic.c:(.text+0x1110): undefined reference to `neardal_set_cb_record_found'
basic.c:(.text+0x1120): undefined reference to `neardal_set_cb_tag_lost'
basic.c:(.text+0x1130): undefined reference to `neardal_set_cb_dev_lost'
basic.c:(.text+0x119c): undefined reference to `neardal_free_record'
collect2: error: ld returned 1 exit status

将此错误暂时搁置一秒，我们发现了另一个错误，在neard-explorenfc-1.2的自述文件中，对“从源代码构建”的步骤进行了跟踪，直到“创建配置脚本”为止

cmake -DCMAKE_INSTALL_PREFIX = / usr -DCMAKE_INSTALL_SYSCONFDIR = / etc ..

CMake Error at /usr/share/cmake-3.0/Modules/ExternalProject.cmake:1467 (message):
  error: no download info for 'NXPRDLIBLINUX' -- please specify
  existing/non-empty SOURCE_DIR or one of URL, CVS_REPOSITORY and CVS_MODULE,
  SVN_REPOSITORY, GIT_REPOSITORY, HG_REPOSITORY or DOWNLOAD_COMMAND
Call Stack (most recent call first):
  /usr/share/cmake-3.0/Modules/ExternalProject.cmake:1847 (_ep_add_download_command)
  CMakeLists.txt:13 (ExternalProject_Add)


-- Configuring incomplete, errors occurred!
See also "/home/pi/Downloads/neardal-0.14-3/neard-explorenfc-1.2/build/CMakeFiles/CMakeOutput.log".

我们无法在网上找到任何解决方案，因此我们暂时停留在这个项目上任何熟悉或遇到此问题的人？提前谢谢！

Answer 1

您必须在命令中添加-lneardal，才能将neardal库链接到您的代码。

错误重新编译探索NFC

1 个答案: