用bash變量參數調用cmake

Question

我正在掙扎成一個奇怪的問題。我試圖運行一個shell變量作爲參數的cmake命令行，但它失敗。這是我做了什麼：

#1. Basic. works fine 
cmake -G 'Sublime Text 2 - Ninja' 

#2. Argument into variable. error 
CMAKE_CONFIG="-G 'Sublime Text 2 - Ninja'" 
cmake $CMAKE_CONFIG ../.. 
> CMake Error: Could not create named generator 'Sublime Text 2 - Ninja' 

#3. Adding -v before variable. 'compile' but ignore the argument (generate a Makefile). Hacky and senseless? 
CMAKE_CONFIG="-G 'Sublime Text 2 - Ninja'" 
cmake -v$CMAKE_CONFIG ../.. 

#4. Quoting argument. error (same as #2) 
CMAKE_CONFIG="-G 'Sublime Text 2 - Ninja'" 
cmake "$CMAKE_CONFIG" ../.. 

與--trace和--debug輸出變量的播放提供了以下：

#5. Working command 
cmake ../.. --trace --debug-output -G "Sublime Text 2 - Ninja" 

#6. Non existing generator. 
#Expected result (witness purpose only) 
cmake ../.. --trace --debug-output -G 'random test'  
[...] 
CMake Error: Could not create named generator random test 

#7. Testing with variable. 
#Output error quotes the generator's name and there is an extra space before it 
cmake ../.. --trace --debug-output $CMAKE_CONFIG  
[...] 
CMake Error: Could not create named generator 'Sublime Text 2 - Ninja' 

#8. Removing the quote within the variable. 
#Still error, but the only difference with #6 is the extra space after 'generator' 
CMAKE_CONFIG="-G Sublime Text 2 - Ninja" 
cmake ../.. --trace --debug-output $CMAKE_CONFIG  
[...] 
CMake Error: Could not create named generator Sublime Text 2 - Ninja 

我試圖改變IFS變量太多，但沒成功實現我的目標。

任何提示？

Answer 1

在這種情況下，您需要調試shell，而不是cmake。訣竅是在你的命令中用「」代替「cmake」，讓bash告訴你它是如何解釋你的參數的。

我認爲使用數組像這樣將工作：

CMAKE_CONFIG=(-G 'Sublime Text 2 - Ninja') 
cmake "${CMAKE_CONFIG[@]}" ../..