我创建了一个简单的main函数，在它上面，我包含了armadillo库。
#include <armadillo>
我使用g ++（GCC的版本是5.3）和在windowse 8的cygwin 64bit下编译它。我打开了c ++ 11选项并添加-larmadillo以链接到armadillo库。
编译代码后，我收到了如此可怕的错误。相同的代码在windowse XP 32位上运行绝对正常。
usr/include/armadillo_bits/compiler_setup.hpp:73:88: note: #pragma message: WAR
NING: #define ARMA_DONT_USE_CXX11 before #include <armadillo>
#pragma message ("WARNING: #define ARMA_DONT_USE_CXX11 before #include <arm
adillo>")
^
In file included from /usr/include/armadillo:310:0,
from main.cpp:1:
/usr/include/armadillo_bits/arma_cmath.hpp: In function 'float arma::arma_log1p(
float)':
/usr/include/armadillo_bits/arma_cmath.hpp:270:12: error: 'log1p' is not a membe
r of 'std'
return std::log1p(x);
^
compilation terminated due to -Wfatal-errors.
Makefile:110: recipe for target 'main.o' failed
make: *** [main.o] Error 1