无法识别/安装 brew::mkl-dnn包

[zhangxp1998]

注：提问题时若使用不能用/没效果/有问题/报错此类模糊表达，但又没有根据下面的模板给出任何相关辅助信息的，将绝对不会有任何反馈。

描述问题

1. 建立一个简单的项目，add_requires添加brew::mkl-dnn包，xmake无法识别

xmake.lua:

add_requires("brew::mkl-dnn", {alias = "mkl-dnn"})
target("snippet")
    set_kind("binary")
    add_files("snippet.cpp")
	add_packages("mkl-dnn")

运行xmake，会报错：

虽然xmake询问是否安装mkl-dnn, 但实际上我的系统已经安装了mkl-dnn, xmake无法识别，自动安装也不成功
error log:

fetch brew::mkl-dnn failed!

请尽量清晰精准地描述你碰到的问题。

期待的结果

请尽量清晰精准地描述你所期待的结果。

错误信息

如果可能，请尽量附加程序运行过程中的错误输出信息。

如果是xmake相关编译问题，请加上-v -D参数运行，并给出详细编译输出信息。
-v -D 运行结果：

▶ xmake -v -D
checking for the Xcode directory ... /Applications/Xcode.app
checking for the SDK version of Xcode ... 10.15
checking for the unzip ... /usr/bin/unzip
checking for the git ... /usr/bin/git
checking for the gzip ... /usr/bin/gzip
checking for the tar ... /usr/bin/tar
checking for the ping ... /sbin/ping
checking for the nmap ... /usr/local/bin/nmap
pinging for the host(github.com) ... 160 ms
pinging for the host(gitlab.com) ... 190 ms
pinging for the host(gitee.com) ... 1920 ms
finding mkl-dnn from brew ..
checking for the brew ... /usr/local/bin/brew
checking for the brew::mkl-dnn ... no
note: try installing these packages (pass -y to skip confirm)?
in brew:
  -> brew::mkl-dnn
please input: y (y/n)
installing mkl-dnn from brew ..
/usr/local/bin/brew install mkl-dnn --verbose
Warning: mkl-dnn 1.2.1 is already installed and up-to-date
To reinstall 1.2.1, run `brew reinstall mkl-dnn`
finding mkl-dnn from brew ..
checking for the brew::mkl-dnn ... no

error: @programdir/actions/require/impl/action/install.lua:190: fetch brew::mkl-dnn failed!
stack traceback:
    [C]: in function 'error'
    [@programdir/core/base/os.lua:814]: in function 'raiselevel'
    [@programdir/core/sandbox/modules/utils.lua:206]: in function 'assert'
    [@programdir/actions/require/impl/action/install.lua:190]:
    [C]: in function 'trycall'
    [@programdir/core/sandbox/modules/try.lua:121]: in function 'try'
    [@programdir/actions/require/impl/action/install.lua:126]: in function 'install'
    [@programdir/actions/require/impl/package.lua:616]: in function 'jobfunc'
    [@programdir/modules/private/async/runjobs.lua:132]:
    [C]: in function 'trycall'
    [@programdir/core/sandbox/modules/try.lua:121]: in function 'try'
    [@programdir/modules/private/async/runjobs.lua:130]: in function 'cotask'
    [@programdir/core/base/scheduler.lua:306]:

  => install brew::mkl-dnn  .. failed
error: @programdir/modules/private/async/runjobs.lua:154: @programdir/actions/require/impl/action/install.lua:249: install failed!
stack traceback:
    [C]: in function 'error'
    [@programdir/core/base/os.lua:814]: in function 'raise'
    [@programdir/actions/require/impl/action/install.lua:249]: in function 'catch'
    [@programdir/core/sandbox/modules/try.lua:127]: in function 'try'
    [@programdir/actions/require/impl/action/install.lua:126]: in function 'install'
    [@programdir/actions/require/impl/package.lua:616]: in function 'jobfunc'
    [@programdir/modules/private/async/runjobs.lua:132]:
    [C]: in function 'trycall'
    [@programdir/core/sandbox/modules/try.lua:121]: in function 'try'
    [@programdir/modules/private/async/runjobs.lua:130]: in function 'cotask'
    [@programdir/core/base/scheduler.lua:306]:

stack traceback:
	[C]: in function 'error'
	@programdir/core/base/os.lua:814: in function 'raise'
	@programdir/modules/private/async/runjobs.lua:154: in function 'catch'
	@programdir/core/sandbox/modules/try.lua:127: in function 'try'
	@programdir/modules/private/async/runjobs.lua:130: in function 'cotask'
	@programdir/core/base/scheduler.lua:306: in function <@programdir/core/base/scheduler.lua:304>

相关环境

请提供编译和运行环境信息，例如：xmake版本、操作系统等
xmake v2.3.1+202002280850, Mac OS 10.15.4 (19E266)

其他信息

请提供其他附加信息帮助我们诊断问题。

[waruqi]

这个包是通过cmake装到homebrew的，没有pkg-config的信息，之前的检测方式找不到

我改进过了，如果没pkg-config，直接从lib/include下探测，你更新到dev再试试 xmake update dev

[zhangxp1998]

解决了，非常感谢！