aaragon wrote: > Hi everyone, > > I used to write c++ code in Ubuntu Linux, and then I started working on Mac > OS so I had to transfer all my c++ code to the new system. My first task was > to get a newer compiler than the one that is shipped by default with Leopard > so using macports I compiled GCC v4.3. Now, for my surprise, most of my code > didn't compile because it seems that the hash_set and hash_map (previously > found under the ext/ directory) now became unordered_set and unordered_map, > so I guess they are standard. I don't really understand the need to install a different compiler, the gcc-4.x that ships with Xcode-3.0 is good enough for most Mac OS X developers, and has quite a number of APPLE_LOCAL patches that you will not find in upstream fsf gcc. > > So, I had not only the header problem, but also the compiler version and the > OS is different as well. I was using autotools before, but I didn't have all > these checks. Honestly, I don't know how to solve these problems. I still > need to compile the code on Linux machines, but then I have to #define a > variable for the different headers. It would be nice if one could detect > the system type, and then add directories to the search for headers. I > couldn't find anything that accomplishes this so I was wondering if it is > possible. For example, if I am in a Darwin OS, I could add directories > /opt/local/include (macports) or /sw/include (fink) to the search. Is there > a way to do this using autoconf? > > What is the best approach to take in these cases? Do you define parameters > in config.h for later use for each OS, compiler version? Please help, I'm > really lost, > Usually setting CPPFLAGS=-I/opt/local/include LDFLAGS=-L/opt/local/lib at configure time is sufficient. It is also possible to do this with gcc env vars LIBRARY_PATH and CPATH. Does this answer your question? Peter -- Peter O'Gorman http://pogma.com _______________________________________________ Autoconf mailing list Autoconf@xxxxxxx http://lists.gnu.org/mailman/listinfo/autoconf
