Ubuntu – asm/errno.h: No such file or directory

compilingg++gccmake

I'm trying to install gcc 4.8.1 at the moment. Currently 4.8.2 and 4.9.1 are installed. I downloaded an 4.8.1 from here http://gcc.cybermirror.org/releases/gcc-4.8.1/ . After extracting the files I did a ./configure and then tried make. At the end of make, I get this error 

/usr/include/linux/errno.h:1:23: fatal error: asm/errno.h: No such file or directory
 #include <asm/errno.h>

I am new to linux so I do not know how to find or add this header file.

Edit: Steps I made:

  1. Extract gcc-4.8.1.tar.gz to a folder
  2. Open terminal window
  3. cd gcc-4.8.1
  4. ./configure --build=x86_64-linux-gnu
  5. make -j4

I don't know what I did differently but it finally compiled. After that I did make install. My question now how do I use this instead of 4.8.2 which using the command gcc-4.8
still defaults to.

Best Answer

The asm/errno.h header is provided by a variety of packages. Odd that gcc would require it, but you can try:

sudo apt-get install linux-libc-dev

You also need to tell GCC to look for an architecture and OS specific location for the headers:

../configure --build=x86_64-linux-gnu

(or i386-linux-gnu for 32-bit Ubuntu).

It's highly recommended when building stuff from source that you use --prefix flag (and with GCC, the --program-suffix flag) while configuring. Since you haven't, try running /usr/bin/gcc.

Thus:

tar xf gcc-4.8.1.tar.gz 
mkdir gcc
cd gcc
../gcc-4.8.1/configure  --build=x86_64-linux-gnu --prefix=/usr/local --program-suffix=-4.8.1
make -j
sudo make install

Now your GCC binaries will be installed to /usr/local/bin/, and other things in other folders in /usr/local.

For example:

$ /usr/local/bin/gcc-4.8.1  # or simply gcc-4.8.1, since this folder is in your PATH

Note how I'm running configure and make from a different directory, outside of where the GCC source is? That's how the GCC docs recommend that GCC be built.

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