How can I set up the path where the compiler(g++) will search forthe header files

[Peter Rothenbuecher]

Hello,
I have the following problem. I try to compile a .cpp file with an
include statement. But the included header file is in another dir. How
can I tell my compiler where to search for it.


This is the c++ compiler which I use:

g++ -v
Reading specs from /usr/lib/gcc/i386-redhat-linux/3.4.4/specs
Configured with: ../configure --prefix=/usr --mandir=/usr/share/man
--infodir=/usr/share/info --enable-shared --enable-threads=posix
--disable-checking --with-system-zlib --enable-__cxa_atexit
--disable-libunwind-exceptions --enable-java-awt=gtk
--host=i386-redhat-linux
Thread model: posix
gcc version 3.4.4 20050721 (Red Hat 3.4.4-2)

thanks,
Peter

 

[mlimber]

Hello,
I have the following problem. I try to compile a .cpp file with an
include statement. But the included header file is in another dir. How
can I tell my compiler where to search for it.


This is the c++ compiler which I use:

g++ -v
Reading specs from /usr/lib/gcc/i386-redhat-linux/3.4.4/specs
Configured with: ../configure --prefix=/usr --mandir=/usr/share/man
--infodir=/usr/share/info --enable-shared --enable-threads=posix
--disable-checking --with-system-zlib --enable-__cxa_atexit
--disable-libunwind-exceptions --enable-java-awt=gtk
--host=i386-redhat-linux
Thread model: posix
gcc version 3.4.4 20050721 (Red Hat 3.4.4-2)

thanks,
Peter

This question is off-topic here, since it is compiler-specific. You
should consult the compiler documentation (or just type "g++ --help").

Cheers! --M

 

[=?ISO-8859-1?Q?Stefan_N=E4we?=]

Hello,
I have the following problem. I try to compile a .cpp file with an
include statement. But the included header file is in another dir. How
can I tell my compiler where to search for it.


This is the c++ compiler which I use:

g++ -v
Reading specs from /usr/lib/gcc/i386-redhat-linux/3.4.4/specs
Configured with: ../configure --prefix=/usr --mandir=/usr/share/man
--infodir=/usr/share/info --enable-shared --enable-threads=posix
--disable-checking --with-system-zlib --enable-__cxa_atexit
--disable-libunwind-exceptions --enable-java-awt=gtk
--host=i386-redhat-linux
Thread model: posix
gcc version 3.4.4 20050721 (Red Hat 3.4.4-2)

'man gcc' or 'man g++'

F'up to gnu.gcc.help

 

[BobR]

mlimber wrote in message

This question is off-topic here, since it is compiler-specific. You
should consult the compiler documentation (or just type "g++ --help").
Cheers! --M

An somewhat OnTopic answer could be:
In the #include, give the full path relative to the current directory.
#include "../../../myspecial/dingdong.h"
or, a full path.
#include "/home/me/mydev/myspecial/dingdong.h"

But, knowing the '-I'(upper-case i) and '-L' switches in GCC is a good thing.