Install GCC 4.9.3

install-gcc-4.9.3.sh

#!/bin/bash

# this script installs GCC 4.9.3 
# to use it navigate to your home directory and type:
# sh install-gcc-4.9.3.sh

# download and install gcc 4.9.3
wget https://ftp.gnu.org/gnu/gcc/gcc-4.9.3/gcc-4.9.3.tar.gz
tar xzf gcc-4.9.3.tar.gz
cd gcc-4.9.3
./contrib/download_prerequisites
cd ..
mkdir objdir

cd objdir
../gcc-4.9.3/configure --prefix=$HOME/gcc-4.9.3 --enable-languages=c,c++,fortran,go --disable-multilib
make

# install
make install

# clean up
rm -rf ~/objdir
rm -f ~/gcc-4.9.3.tar.gz

# add to path (you may want to add these lines to $HOME/.bash_profile)
export PATH=$HOME/gcc-4.9.3/bin:$PATH
export LD_LIBRARY_PATH=$HOME/gcc-4.9.3/lib:$HOME/gcc-4.9.3/lib64:$LD_LIBRARY_PATH

what is the approximate run time of this script?

@Bloddie it mostly depends on your network speed.

Failed with error cfns.gperf:101:1: error: 'const char* libc_name_p(const char*, unsigned int)' redeclared inline with 'gnu_inline' attribute

following this:
cd objdir
../gcc-4.9.3/configure --prefix=$HOME/gcc-4.9.3 --enable-languages=c,c++,fortran,go --disable-multilib
make
confronted numerous warning in different run steps like:
"invalid suffix on literal; C++11 requires a space between literal and string macro [-Wliteral-suffix]"
and ended to the error:
"cfns.gperf:26:14: warning: inline function ‘const char* libc_name_p(const char*, unsigned int)’ used but never defined
Makefile:1058: recipe for target 'cp/except.o' failed
make[3]: *** [cp/except.o] Error 1
make[3]: Leaving directory '/home/user/objdir/gcc'
Makefile:4233: recipe for target 'all-stage1-gcc' failed
make[2]: *** [all-stage1-gcc] Error 2
make[2]: Leaving directory '/home/user/objdir'
Makefile:24345: recipe for target 'stage1-bubble' failed
make[1]: *** [stage1-bubble] Error 2
make[1]: Leaving directory '/home/user/objdir'
Makefile:900: recipe for target 'all' failed
make: *** [all] Error 2"

Facing the same issue as @NahidHosseinzadeh
Did you find a solution for this?

can u help me with this error ('.' is not recognized as an internal or external command,operable program or batch file.)

@aryan57 These commands are for bash systems, not for Windows based.

@anjalishenoy
Did you find some soultion ?

Facing the same issue as @NahidHosseinzadeh
Did you find a solution for this?

To speak in pricipals:
You need a working gcc. Bootstrap is also not done. Bad thing. It's to simple...works on his computer only.

../gcc-4.9.3/configure --prefix=$HOME/gcc-4.9.3 --enable-languages=c,c++,fortran,go --disable-multilib
gave such an error
configure error : in '.../objdır':
configure error: no acceptable c compiler found in $path
i don't have apt-get, apt

Failed with this error :
cfns.gperf: In function ‘const char* libc_name_p(const char*, unsigned int)’:
cfns.gperf:101:1: error: ‘const char* libc_name_p(const char*, unsigned int)’ redeclared inline with ‘gnu_inline’ attribute
cfns.gperf:26:14: note: ‘const char* libc_name_p(const char*, unsigned int)’ previously declared here
cfns.gperf: At global scope:
cfns.gperf:26:14: warning: inline function ‘const char* libc_name_p(const char*, unsigned int)’ used but never defined
make[3]: *** [cp/except.o] Error 1

Actually the script looks pretty fine. But it failed with multiple errors. I have tried multiple GCC versions

Failed with this error :
cfns.gperf: In function ‘const char* libc_name_p(const char*, unsigned int)’:
cfns.gperf:101:1: error: ‘const char* libc_name_p(const char*, unsigned int)’ redeclared inline with ‘gnu_inline’ attribute
cfns.gperf:26:14: note: ‘const char* libc_name_p(const char*, unsigned int)’ previously declared here
cfns.gperf: At global scope:
cfns.gperf:26:14: warning: inline function ‘const char* libc_name_p(const char*, unsigned int)’ used but never defined
make[3]: *** [cp/except.o] Error 1

work with two patches (with gcc 9.4.0, ubuntu 20.04):

1. https://gcc.gnu.org/git/?p=gcc.git;a=commitdiff;h=ec1cc0263f156f70693a62cf17b254a0029f4852#patch2
2. https://gcc.gnu.org/git/gitweb.cgi?p=gcc.git;h=883312dc79806f513275b72502231c751c14ff72

... and if you have some problems with sanitizer lib, you can make with --disable-libsanitizer , but it should be a patch for this (it is here: https://reviews.llvm.org/D47281 , but does not work with my configuration).