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    <p>MinGW uses G++ 3.x, which is very very old. It's a limitation of the compiler itself -- old versions of G++ are simply slow. There are some "unofficial" G++ ports to windows that borrow from the MinGW project that use more recent (4.x) versions of G++, and it's possible your Code::Blocks IDE was using one of those.</p> <p>I seriously doubt that the second and a half is significant in 99.9% of usages of most compilers anyway. Even if it is overhead imposed by the IDE itself, we're talking about what is essentially a one time cost -- it shouldn't blow up to insane compile times when you compile larger programs.</p> <hr> <p>In response to FredOverflow's comment: From the MinGW installer (mingw.ini):</p> <pre> [mingw] Build=12 URL=http://prdownloads.sourceforge.net/mingw Filename=MinGW-5.1.6.exe packages=previous|current|candidate [current] runtime=mingwrt-3.17-mingw32-dev.tar.gz|7300 runtimeDLL=mingwrt-3.17-mingw32-dll.tar.gz|30 w32api=w32api-3.14-mingw32-dev.tar.gz|14460 binutils=binutils-2.20-1-mingw32-bin.tar.gz|26979 core=gcc-core-3.4.5-20060117-3.tar.gz|7712 gpp=gcc-g++-3.4.5-20060117-3.tar.gz|15480 g77=gcc-g77-3.4.5-20060117-3.tar.gz|5272 ada=gcc-ada-3.4.5-20060117-3.tar.gz|33860 java=gcc-java-3.4.5-20060117-3.tar.gz|43160 objc=gcc-objc-3.4.5-20060117-3.tar.gz|3720 make=make-3.81-20090914-mingw32-bin.tar.gz|723 [previous] runtime=mingwrt-3.15.2-mingw32-dev.tar.gz|7616 runtimeDLL=mingwrt-3.15.2-mingw32-dll.tar.gz|40 w32api=w32api-3.13-mingw32-dev.tar.gz|14420 binutils=binutils-2.19.1-mingw32-bin.tar.gz|21093 core=gcc-core-3.4.2-20040916-1.tar.gz|8627 gpp=gcc-g++-3.4.2-20040916-1.tar.gz|16542 g77=gcc-g77-3.4.2-20040916-1.tar.gz|5158 ada=gcc-ada-3.4.2-20040916-1.tar.gz|33333 java=gcc-java-3.4.2-20040916-1.tar.gz|45547 objc=gcc-objc-3.4.2-20040916-1.tar.gz|4555 make=mingw32-make-3.81-20080326-2.tar.gz|727 [candidate] binutils=binutils-2.18.50-20080109-2.tar.gz|20505 core=gcc-core-3.4.5-20060117-3.tar.gz|7712 gpp=gcc-g++-3.4.5-20060117-3.tar.gz|15480 g77=gcc-g77-3.4.5-20060117-3.tar.gz|5272 ada=gcc-ada-3.4.5-20060117-3.tar.gz|33860 java=gcc-java-3.4.5-20060117-3.tar.gz|43160 objc=gcc-objc-3.4.5-20060117-3.tar.gz|3720 make=mingw32-make-3.81-2.tar.gz|720 </pre>
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    1. POit takes 2 seconds to compile a hello world C++ project in netbeans (windows)
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    1. CONo, I use the same version MinGW for netbeans and Code:Blocks. Actually I set the path of compliers in netbeans pointing to those use with MinGW. I know it is probably a one-time cost, but it is still uncomfortable when I need to repetitively compile small projects many many times to check if they work correctly. I am working on Google codejam questions.
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    2. COWhat do you mean, "unofficial"? You can get the latest g++ 4.5.0 as part of the official [MinGW package](http://sourceforge.net/projects/mingw/files/).
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    3. CO@FredOverflow: The item you linked to contains G++ 3.4.4
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