RInside编译:创建目标

Question

我对使用make很陌生，我正在尝试运行Qt密度演示的RInside示例：http://dirk.eddelbuettel.com/blog/2011/03/25/。我已经将代码保存到以下文件中：

main.cpp Makefile qtdensity.cpp包含/qtdenity.h

我运行的Ubuntu13.10，我有R，Rcpp和内部安装。当我跑到终点站时

> make -f Makefile

我知道错误了

make: *** No targets. Stop.

请告诉我该怎么做。

谢谢

我看不出如何跟进第一个答案，所以我不得不扩展我的问题：

我刚刚创建了这些文件，并且能够在main.cpp、qtdensity.cpp、qtdenity.h和qtdensity.pro上运行qmake，但当我尝试运行make时，我得到以下错误：

很多与R相关的错误.

qtdensity.cpp:(.text+0x53a): undefined reference to `Rf_mkString'
qtdensity.cpp:(.text+0x54e): undefined reference to `Rf_install'
qtdensity.cpp:(.text+0x559): undefined reference to `Rf_findVarInFrame'
qtdensity.cpp:(.text+0x560): undefined reference to `R_UnboundValue'
...

qtdensity.cpp:(.text.startup+0x2a5): undefined reference to `R_NaReal'
qtdensity.cpp:(.text.startup+0x2b2): undefined reference to `R_NaN'
main.o: In function `_GLOBAL__sub_I_main':
main.cpp:(.text.startup+0x2a5): undefined reference to `R_NaReal'
main.cpp:(.text.startup+0x2b2): undefined reference to `R_NaN'
main.o: In function `main':
main.cpp:(.text.startup+0x352): undefined reference to `RInside::RInside(int, char const* const*, bool, bool, bool)'
main.cpp:(.text.startup+0x397): undefined reference to `RInside::~RInside()'
main.cpp:(.text.startup+0x3b3): undefined reference to `RInside::~RInside()'
moc_qtdensity.o: In function `_GLOBAL__sub_I__ZN9QtDensity18qt_static_metacallEP7QObjectN11QMetaObject4CallEiPPv':
moc_qtdensity.cpp:(.text.startup+0x2a5): undefined reference to `R_NaReal'
moc_qtdensity.cpp:(.text.startup+0x2b2): undefined reference to `R_NaN'
collect2: error: ld returned 1 exit status
make: *** [qdensity] Error 1

Answer 1

Qt示例是不同的，因为它使用Qt。您总是需要从从.pro文件创建Makefile本身开始。证人：

edd@max:~/git/rinside/inst/examples/qt$ ls -l        ## no Makefile
total 28
drwxrwxr-x 2 edd edd 4096 Dec 27 18:38 cmake
-rw-rw-r-- 1 edd edd  518 Dec 27 18:38 main.cpp
-rw-rw-r-- 1 edd edd 5953 Dec 27 18:38 qtdensity.cpp
-rw-rw-r-- 1 edd edd 1532 Dec 27 18:38 qtdensity.h
-rw-rw-r-- 1 edd edd 2378 Feb 11 20:14 qtdensity.pro
-rw-rw-r-- 1 edd edd  887 Dec 27 18:38 README
edd@max:~/git/rinside/inst/examples/qt$ qmake        ## creates Makefile
edd@max:~/git/rinside/inst/examples/qt$ make
g++ -c -m64 -pipe -I/usr/share/R/include [... lots and lots omitted ...]
g++ -m64 -Wl,-O1 -o qtdensity qtdensity.o main.o moc_qtdensity.o  [....]
edd@max:~/git/rinside/inst/examples/qt$ ls -l qtdensity
-rwxrwxr-x 1 edd edd 76666 Feb 14 15:02 qtdensity
edd@max:~/git/rinside/inst/examples/qt$ 

这个当然也是自述目录中的.