Thanks installing GCC via make install solved my issue, however some other concern came up. Our existing gcc version is 4.1.2 Linux:>/x/local/prakash_prasad/gimp/code 1057> gcc --version gcc (GCC) 4.1.2 20080704 (Red Hat 4.1.2-46) Copyright (C) 2006 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. Our codebase compiles fine with this GCC version but not with GCC 4.5.0. It throws a lot of error which we need to fix is again an Org level initiative. However my intention was to implement this - https://lwn.net/Articles/457543/ - I wanted to write an a new GCC pass which requires a minimum GCC 4.5.0 [as per the document]. Now currently either our Org has to upgrade the code to compile with GCC 4.5.0 [which definitely is not possible now] or please let me know any alternative way to implement it in GCC pass in 4.1.2 version? Thanks in advance. Regards, Prakash On Mon, Feb 13, 2012 at 2:00 PM, Jonathan Wakely <jwakely.gcc@xxxxxxxxx> wrote: > On 13 February 2012 21:21, Satya Prakash Prasad wrote: >> Thanks for the info. >> >> I do understand that I should work with GCC 4.5.3 but this is a >> generic question / issue for which I seek help. So please let me know >> the workaround / fix if the same is applicable for GCC 4.5.3 version. > > Yes, it's applciable, but since you don't seem to have a good reason > to use 4.5.0 you should *really* use 4.5.3 instead, or your developers > will encounter a number of bugs that have already been fixed and they > will get annoyed at you. > >> I actually move GMP / MPFR / MPC under gcc-4.5.0 folder: >> >> Created gmp / mpfr / mcp folders and copied / extracted respective tar >> files. Doing this way I was able to successfully build GCC 4.5.0 >> >> Linux:>~/shared_scripts/bin/gcc/gcc-4.5.0 >> 1003>/x/home/prakash_prasad/shared_scripts/bin/gcc/gcc-4.5.0/configure >> --prefix=/x/home/prakash_prasad/shared_scripts/bin/gcc/gcc-4.5.0 > > Why are you configuring with prefix set to the source directory? > >> --enable-shared --enable-threads=posix --enable-__cxa_atexit >> --enable-clocale=gnu --enable-languages=c,c++ >> >> However I see the following binaries getting build - >> >> Linux:>~/shared_scripts/bin/gcc/gcc-4.5.0 1030> find . -name '*gcc' >> -perm /u=x,g=x,o=x -type f -exec ls -l \{} \; >> -rwxrwxr-x 1 prakash_prasad ppusers 705019 Feb 13 10:04 >> ./host-x86_64-unknown-linux-gnu/gcc/xgcc >> -rwxrwxr-x 1 prakash_prasad ppusers 513868 Feb 12 18:57 >> ./host-x86_64-unknown-linux-gnu/stage1-gcc/xgcc >> -rwxrwxr-x 1 prakash_prasad ppusers 300059 Feb 12 19:45 >> ./host-x86_64-unknown-linux-gnu/prev-gcc/xgcc >> Linux:>~/shared_scripts/bin/gcc/gcc-4.5.0 1031> >> >> Linux:>~/shared_scripts/bin/gcc/gcc-4.5.0 1031> find . -name 'g++' >> -perm /u=x,g=x,o=x -type f -exec ls -l \{} \; >> -rwxrwxr-x 1 prakash_prasad ppusers 712422 Feb 13 10:04 >> ./host-x86_64-unknown-linux-gnu/gcc/g++ >> -rwxrwxr-x 1 prakash_prasad ppusers 304198 Feb 12 19:45 >> ./host-x86_64-unknown-linux-gnu/prev-gcc/g++ >> Linux:>~/shared_scripts/bin/gcc/gcc-4.5.0 1032> > > That's expected if you haven't run "make install" yet. > >> Is gcc executable and xgcc are same? > > The binaries will be renamed when they are installed. > > You need to run "make install" for the compiler to be usable. > >> Linux:>~/shared_scripts/bin/gcc/gcc-4.5.0 1032> cat test.cpp >> >> #include <iostream> >> #include <stdio.h> >> >> main() >> { >> printf("Test\n"); >> std::cout<<"Test" << std::endl; >> } >> >> And got the below output: >> >> Linux:>~/shared_scripts/bin/gcc/gcc-4.5.0 1148> >> ./host-x86_64-unknown-linux-gnu/gcc/xgcc --version >> xgcc (GCC) 4.5.0 >> Copyright (C) 2010 Free Software Foundation, Inc. >> This is free software; see the source for copying conditions. There is NO >> warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. >> >> Linux:>~/shared_scripts/bin/gcc/gcc-4.5.0 1036> >> ./host-x86_64-unknown-linux-gnu/gcc/g++ --version >> g++ (GCC) 4.5.0 >> Copyright (C) 2010 Free Software Foundation, Inc. >> This is free software; see the source for copying conditions. There is NO >> warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. >> >> Linux:>~/shared_scripts/bin/gcc/gcc-4.5.0 1149> >> ./host-x86_64-unknown-linux-gnu/gcc/xgcc test.cpp >> xgcc: error trying to exec 'cc1plus': execvp: No such file or directory >> >> Linux:>~/shared_scripts/bin/gcc/gcc-4.5.0 1035> >> ./host-x86_64-unknown-linux-gnu/gcc/g++ test.cpp >> g++: error trying to exec 'cc1plus': execvp: No such file or directory >> >> Kindly note that I using stage1 boxes where we do not have permissions >> to install anything. > > I don't know what a stage1 box is, but you need to install the > compiler with "make install" or it won't work without setting paths > manually. > >> Will this issue will happen for version GCC 4.5.3 also? > > Yes. > > >> What is the >> fix for same and any workaround for same? > > You need to install gcc. You haven't finished the installation > process, all you've done is build it. > >> What do I need to install >> further, > > You need to install gcc, you haven't done that. > > You can install it to a staging area, then copy/move it to its final > location, but you must install it to finish the build+installation > process. To install to a staging area use e.g. > > make install DESTDIR=/path/to/staging/area
