centos gcc

Busybox/src/include/platform.h /* Fast_func is a qualifier which (possibly) makes function call faster * and/or smaller by using modified ABI. It is usually only needed * on non-static, busybox internal functions. Recent versions of GCC * optimize statics automatically. Fast_func on the static is required * only if your need to match a function pointer ' s type * * * #if __gnuc_prereq (3,0) A mp; defined (i386)/* | | Defined (__x86_64__)? *//// *

The previous few days in preparation for the CENTOS7 under the compilation environment, the online installation of GCC and gcc-c++ is very simple, as long as the machine is networked in the terminal window in order to enter separately1 Yum Install gcc 2 Yum install gcc-c++The installation can be completed online, and t

when using the new version of GCC, and to compile the program using the original GCC. Of course, you can also link the/usr/bin directory gcc,g++ command back to the new version of the GCC executable. The last thing to do before the formal use is to add the path of the three libraries that were previously installed to

Centos 6.5 Installation Deployment：1.Linux (centos6.5) launch interface into the command line interface:Start the interface up and down into the Grub menu, press the keyboard ' E ' key, select Kernel ..., press ' E ' key, add parameter 3, press ENTER, press keyboard ' e ', enter command line mode.2.ssh encountered ' Host Key verification failed 'SSH will record the public key of each computer you access to ~/.ssh/known_hosts, and when the next time yo

Less Optimization-> more optimization: O0 --> O1 --> O2 --> O3 -O0 indicates no optimization,-O1 indicates the default value, and-O3 indicates the highest optimization level. English explanation: '-O' '-O1' Optimize. Optimizing compilation takes somewhat more time, and Lot more memory for a large function. With '-O', the compiler tries to reduce code size and execution Time, without specify Ming any optimizations that take a great deal Of compilation time. '-O' turns on the following optimizatio

1. this document is applicable to the compilation and use of gcc-3.0 and gcc-3.0.x under SCO 5.0.6. the same method can also be used to compile gcc-2.95.x, gcc-3.2.x, gcc-3.3. this article takes the gcc-3.0 as an example to illust

to set up Yum source.After installing CentOS, it is generally necessary to modify the Yum source to achieve the desired speed when installing the update RPM package. Domestic relatively fast has 163 source, Sohu source. Here is an example of a 163 source.1. CD/ETC/YUM.REPOS.D2. MV Centos-base.repo Centos-base.repo.backup3. wget Http://mirrors.163.com/.help/CentO

Update Linux GCC to GCC 4.4.2 First need to prepare required materials: gcc4.4.2 version need to install gmp4.2.0 + and mpfr2.3.0 +, to the site of GMP (http://gmplib.org/fuse download gmp-4.3.1.tar.gz and MPRF sites (http://www.mpfr.org/fuse download mpfr-2.4.2.tar.gz) 1.Install GMP# Wget ftp://ftp.gmplib.org/pub/gmp-5.0.0/gmp-5.0.0.tar.bz2# Tar-zxvf gmp-4.3.2.tar.gz# Cd gmp-4.3.2#./Configure# Make# Make

Talk GCC together (second: GCC), talkgcc Hello, everyone. The last time we introduced GCC briefly. Let's talk about how to use GCC later, The words are right. Let's talk GCC together! In the last session, we only talked about the GCC