This libraries can be obtained by downloading the xerces source code from the Apache Software Foundation web site and then building and installing xerces with the following steps:.
It also possible to compile on MacOS X using a command line approach after installing XCode and command line tools and after installing xerces and its header files as explained above making sure they are in the specified default locations. You can compile NairnMPM using:. The above commands assume you have installed the clang-mp compiler. If the command-line compile does not work, the most likely explanation is a problem with the xerces installation.
You either have to install it as specified above or edit the makefile to recognize your custom installation. The process is documented in the makefile and involves editing the xercesSo and headersPath variables for your different settings. You can pass additional parameters to the make command to alter the compilation process e.
See comments in the makefile for all the latest options. All compiling on Mac requires that you install Xcode even if you do not plan to use it for anything else. It is a large install. Once installed, you then need to install command line tools. The two supported solutions are to compile without OpenMP and lose all advantages of multiprocessor execution or to install and use the clang-mp compiler. Some notes below explain how to install and use an unsupported GCC compiler.
The current check out is configured to compile in XCode using clang-mp Prior check outs are set up to use earlier versions of clang-mp or various version of GCC. It is be easy to convert any checkout to use the compiler you prefer by making a few changes in the XCode project build settings.
Alternatively, you can use command line compilation and specify settings for currently installed compiler. Whenever you update your MacOS or Xcode, you may need to repeat some installation steps before you can return to compiling the code engines. Apple used to install command line tools by default, but stopped doing that in MacOS Lion. You now have to manually install the tools before you can compile code.
These steps should work:. With each new system, Apple seems to creating road blocks to keep you from using you computer for interesting programming. For now, by using a few tricks it is still possible to get around their road blocks. Hopefully these tricks will continue to work in the future. One issue in the XCode project is that it might not find your xerces library, even if it is in the standard location. If it is not found, the library may be in red in the "External Frameworks and Libraries" folder or may not.
A potential solution is to delete the reference to the library and then add it back. This is not a trivial difference, for reasons that I'd hope I don't have to explain. Add a comment. Active Oldest Votes. Update: You can now just run the following command from your terminal: xcode-select --install Starting with Xcode 4.
Improve this answer. Steve Steve When Steve says Preferences , he's talking about the Preferences dialog box which can be found in the Xcode menu at the upper left when you have the XCode window active. Seemed to work for me just fine. I just submitted an edit to the answer that uses the correct link. Doesn't this actually install llvm-gcc instead of gcc? Show 10 more comments. Volcanic Volcanic 1, 1 1 gold badge 13 13 silver badges 5 5 bronze badges.
Thanks, this was the key to a Serge Pedroza Serge Pedroza 2, 3 3 gold badges 25 25 silver badges 40 40 bronze badges. I've found your post very useful, as like as this one, concerning OpenSSL dependency when installing Ruby 2. Seriously, one among the most helpful answers I've come across lately. Worked perfectly. Exactly what I was looking for. Wish I could upvote more.
This is only answer with the brew recipe for the real gcc, which is what the question title seems to ask for. Sources for GCC, compatibility with Community Bot 1 1 1 silver badge. Graham Perrin Graham Perrin 1 1 gold badge 10 10 silver badges 43 43 bronze badges. Just the LLVM versions.
Wonder if they install to a separate location now? Looks like you have to add roger's link to the XCode directory to your path. JohnMetta does it make an Xcode directory even if you haven't installed Xcode? Don't install yet. Depending on user rights, you will have to confirm many of the actions with your admin password.
Just do so when necessary. If you damage your system, you are on your own that should not happen though, as Xcode has been applified. Open Xcode 4. Look at lines 41and Make sure they look exactly as presented here the values will be reversed in a fresh install. Launch xcode and chose GCC 4. You should delete the outdated "Developer" directory. Xcode should now also accept updates via Mac App Store again this remains to be tested.
I also did not download command line tools, but my guess is it will survive that too.
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