GCC 4.9 compilation experience

Because c ++ doesn't want to use boost directly, some of the latest C ++ standards have already been merged, so it's better to use C ++ directly.

Therefore, you need to compile GCC 4.9. The latest version is 4.9.1.

I have already installed a lot of dependencies through yum. I found that ISL and cloog cannot be installed through yum, downloaded and installed. When GCC and configure are used, I found that cloog 17 or 18.0 is required, I installed version 18.1, and configure failed. Come on with the installation documentation. Reference: callback:

1. Prepare the environment (GCC compiler)
Centos 1, 6.3
CAT/proc/version
Linux version 2.6.32-279. el6.x86 _ 64 ([email protected]) (GCC version 4.4.6 20120305 (Red Hat 4.4.6-4) (GCC) #1 SMP Fri Jun 22 12:19:21 UTC 2012
GCC -- version
GCC (GCC) 4.4.6 20120305 (Red Hat 4.4.6-4)

2. Prepare files
Gcc-4.9.0.tar.gz
Official website (http://gcc.gnu.org/) download:

Ftp://mirrors.kernel.org/gnu/gcc/gcc-4.9.0/gcc-4.9.0.tar.gz

Http://gcc.petsads.us/releases/

3. Installation Steps
3.1. Unzip the gcc-4.9.0.tar.gz
Get the directory gcc-4.9.0 and go to the directory
# Tar-xvzf gcc-4.9.0.tar.gz
# Cd gcc-4.9.0

3.2. Download the compilation preparation File
It mainly requires the following library files (the complete version is required to download all files)
Mpfr = mpfr-2.4.2
Gmp-4.3.2 GMP =
PC = mpc-0.8.1
Isl = isl-0.12.2
Cloog = cloog-0.18.1
Run./contrib/download_prerequisites
If the compilation machine cannot access the Internet, open the text file download_prerequisites and
After the dependent library is downloaded, place it in the specified directory, comment out the download command, and execute again
Contrib/download_prerequisites: Decompress the related files and create a link.
# Vi contrib/download_prerequisites
Comment on wget-related content, manually download these files back, copy to the working directory gcc-4.9.0.
#./Contrib/download_prerequisites

3.3. Create a compilation directory and compile and install the Directory
# Mkdir ../gcc-build-4.9.0

# CD ../gcc-build-4.9.0

# ../Gcc-4.9.0/configure -- prefix =/usr/local/gcc-4.9.0 -- enable-stage1-checking = release -- enable-stage1-languages = C, C ++, go

In the source code directory, run this command: (this may not be valuable. Please continue to read it)

./Contrib/download_prerequisites

Some errors are prompted. The above Errors still exist, and:/usr/bin/ld: cannot find crt1.o: no such file or directory. Install the 32-bit Library: Yum install libxtst. i686 libxulrunner. i686.

The result is still incorrect. Add the "-- enable-multilib" option during compilation as prompted:

../Gcc-4.9.1/configure -- prefix =/usr/local/gcc-4.9.1 -- enable-stage1-checking = release -- enable-stage1-languages = C, C ++, Java, go -- enable-multilib, successful

Make

A lot of errors occurred during make. Try to solve this problem and use -- disable-multilib in the end.

Next, refer to www.owent.net/2014/04/linux-compilation and installation -gcc-4-9.html,

Still need to compile binutils, configure said can not find isl, think of a variety of methods, and finally enter the isl source code directory, gcc-4.9.1/contrib/ISL, configure & make install. Configure -- prefix =... on the Internet. I didn't use this method.

When making GDB 7.8, add the options -- With-Python, yum-y install Python-devel Based on the introduction in the owenet.net document. Added the python debugging function.

GCC 4.9 compilation experience