提问人：aybe 提问时间：12/2/2013 更新时间：2/15/2017 访问量：10643
$（MKDIR） 和 $（COPY_DIR） 等变量在哪里定义？
Where are variables such as $(MKDIR) and $(COPY_DIR) defined?
答：
-2赞
C. S.
12/2/2013
#1
使用Mac上的终端，
mkdir 在当前目录下创建一个目录。假设我当前的目录是 username：~/parent_directory $，如果您键入并按 Enter，它将创建一个名称代码为mkdir code
17赞
Bill
12/2/2013
#2
在处理 .pro 文件并通过 qmake 生成 Makefile 之前，会根据您的编译器和平台对其他几个文件进行预处理。这些文件的扩展名为 .prf 和 .conf，并从名为 mkspecs 的目录中加载。
Makefile 中的 MKDIR 和 COPY_DIR 变量的值由以下文件中定义的 QMAKE_MKDIR 和 QMAKE_COPY_DIR 变量的值生成：
C：\Qt\Qt5.0.2\5.0.2\msvc2010\mkspecs\common\shell-unix.conf：
QMAKE_TAR = tar -cf
QMAKE_GZIP = gzip -9f
QMAKE_COPY = cp -f
QMAKE_COPY_FILE = $$QMAKE_COPY
QMAKE_COPY_DIR = $$QMAKE_COPY -R
QMAKE_MOVE = mv -f
QMAKE_DEL_FILE = rm -f
QMAKE_DEL_DIR = rmdir
QMAKE_CHK_EXISTS = test -e %1 ||
QMAKE_CHK_DIR_EXISTS = test -d # legacy
QMAKE_MKDIR = mkdir -p # legacy
QMAKE_MKDIR_CMD = test -d %1 || mkdir -p %1
QMAKE_STREAM_EDITOR = sed
C：\Qt\Qt5.0.2\5.0.2\msvc2010\mkspecs\common\shell-win32.conf：
QMAKE_ZIP = zip -r -9
QMAKE_COPY = copy /y
QMAKE_COPY_DIR = xcopy /s /q /y /i
QMAKE_MOVE = move
QMAKE_DEL_FILE = del
QMAKE_DEL_DIR = rmdir
QMAKE_CHK_EXISTS = if not exist %1
QMAKE_CHK_DIR_EXISTS = if not exist # legacy
QMAKE_MKDIR = mkdir # legacy
QMAKE_MKDIR_CMD = if not exist %1 mkdir %1 & if not exist %1 exit 1
# xcopy copies the contained files if source is a directory. Deal with it.
CONFIG += copy_dir_files
（正如你所看到的，我正在使用Qt 5.0.2，所以你的机器上的路径可能不同。
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0赞
kayleeFrye_onDeck
4/2/2016
巨大的警告：看起来QMAKE_MKDIR_CMD在Qt 5.6中不起作用，但QMAKE_MKDIR确实如此。我在这个 x.x 上浪费了很多时间 拯救自己！
3赞
Zitrax
10/12/2016
在Qt 5.7中，该文件存在，但只是一条消息表明它们已被弃用。知道它们现在在哪里定义吗？此外，我在Qt文档中没有看到有关变量本身的任何信息。
11赞
yalov
2/15/2017
#3
Qt 5.8更新
c:\Qt\5.8\mingw53_32\mkspecs\features\spec_post.prf
类似 Windows：
QMAKE_ZIP = zip -r -9
QMAKE_CD = cd /d
QMAKE_COPY = copy /y
QMAKE_COPY_FILE = $$QMAKE_COPY
QMAKE_COPY_DIR = xcopy /s /q /y /i
# xcopy copies the contained files if source is a directory. Deal with it.
CONFIG += copy_dir_files
QMAKE_MOVE = move
QMAKE_DEL_FILE = del
QMAKE_DEL_DIR = rmdir
QMAKE_DEL_TREE = rmdir /s /q
QMAKE_CHK_EXISTS = if not exist %1
QMAKE_CHK_DIR_EXISTS = if not exist # legacy
QMAKE_MKDIR = mkdir # legacy
QMAKE_MKDIR_CMD = if not exist %1 mkdir %1 & if not exist %1 exit 1
QMAKE_STREAM_EDITOR = $(QMAKE) -install sed
QMAKE_INSTALL_FILE = copy /y
QMAKE_INSTALL_PROGRAM = copy /y
类 Linux：
QMAKE_TAR = tar -cf
QMAKE_GZIP = gzip -9f
QMAKE_CD = cd
QMAKE_COPY = cp -f
QMAKE_COPY_FILE = $$QMAKE_COPY
QMAKE_COPY_DIR = $$QMAKE_COPY -R
QMAKE_MOVE = mv -f
QMAKE_DEL_FILE = rm -f
QMAKE_DEL_DIR = rmdir
QMAKE_DEL_TREE = rm -rf
QMAKE_CHK_EXISTS = test -e %1 ||
QMAKE_CHK_DIR_EXISTS = test -d # legacy
QMAKE_MKDIR = mkdir -p # legacy
QMAKE_MKDIR_CMD = test -d %1 || mkdir -p %1
QMAKE_STREAM_EDITOR = sed
equals(QMAKE_HOST.os, Windows) {
MINGW_IN_SHELL = 1 # legacy
# Override built-ins.
QMAKE_DIR_SEP = /
QMAKE_DIRLIST_SEP = :
# Because install's ability to set permissions is not relevant on Windows,
# and git's msys does not provide it to start with.
QMAKE_INSTALL_FILE = cp -f
QMAKE_INSTALL_PROGRAM = cp -f
} else {
QMAKE_INSTALL_FILE = install -m 644 -p
QMAKE_INSTALL_PROGRAM = install -m 755 -p
}
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