请问GCC的include路径是如何确定的[多谢lovepolo解决]

shining365

如题。
比如

1. 
   
2. include <stdio.h>

复制代码

这个stdio.h是哪儿？它所在的目录被写入了GCC的哪个配置文件？谢谢！

lovepolo

type "gcc -v"

$gcc -v
Reading specs from /usr/lib/gcc-lib/i386-linux/3.2.3/specs
Configured with: ../src/configure -v --enable-languages=c,c++,f77,objc,ada --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --with-gxx-include-dir=/usr/include/c++/3.2 --enable-shared --with-system-zlib --enable-nls --without-included-gettext --enable-__cxa_atexit --enable-clocale=gnu --enable-objc-gc i386-linux
Thread model: posix
gcc version 3.2.3 (Debian)

lovepolo

so the header files are located at /usr/include/c++/3.2,
and this information was written in /usr/lib/gcc-lib/i386-linux/3.2.3/specs

shining365

Thank you very much!

x11

那是g++的
对gcc，可能是由prefix决定的吧, $prefix/include

deerlux

Post by x11
那是g++的
对gcc，可能是由prefix决定的吧, $prefix/include

同意，gcc缺省的头文件搜索路径是$prefix/include，不过看gcc -v 的输出可以看出，除了缺省的搜索路径外还加上了C＋＋的搜索路径。如果你要自己指定搜索路径的话可以用gcc的-I参数。