How can a self contained gcc and g++ be created such that behaviour between
gcc and g++ is consistent without having to set setting LD_LIBRARY_PATH?
Test system: Linux 2.4.32 #1 SMP Tue Aug 8 10:17:37 PDT 2006 i686 i686
i386 GNU/Linux
g++ breaks on libstdc++.so.*
gcc appears to be fine.
Why am I forced to set the library path with g++ but not gcc?
This is inconsistent and confusing. Why don't the resulting binaries look in
--with-local-prefix or --prefix library paths at runtime?
gcc created like this, (/usr/foo empty at start):
/usr/foo/src/gcc-3.4.6/configure --prefix=/usr/foo
--with-local-prefix=/usr/foo --program-suffix=-3.4.6
--enable-languages=c,c++
example:
$ /usr/foo/bin/gcc-3.4.6 -v
Reading specs from /usr/foo/lib/gcc/i686-pc-linux-gnu/3.4.6/specs
Configured with: /usr/foo/src/gcc-3.4.6/configure --prefix=/usr/foo
--with-local-prefix=/usr/foo --program-suffix=-3.4.6
--enable-languages=c,c++
Thread model: posix
gcc version 3.4.6
$ /usr/foo/bin/g++-3.4.6 -v
Reading specs from /usr/foo/lib/gcc/i686-pc-linux-gnu/3.4.6/specs
Configured with: /usr/foo/src/gcc-3.4.6/configure --prefix=/usr/foo
--with-local-prefix=/usr/foo --program-suffix=-3.4.6
--enable-languages=c,c++
Thread model: posix
gcc version 3.4.6
$ /usr/foo/bin/gcc-3.4.6 hello.c
$ ./a.out
hello, world
$ ldd a.out
libc.so.6 => /lib/i686/libc.so.6 (0x42000000)
/lib/ld-linux.so.2 => /lib/ld-linux.so.2 (0x40000000)
$ /usr/foo/bin/g++-3.4.6 hello.cc
$ ./a.out
./a.out: error while loading shared libraries: libstdc++.so.6: cannot
open shared object file: No such file or directory
$ ldd a.out
libstdc++.so.6 => not found
libm.so.6 => /lib/i686/libm.so.6 (0x40031000)
libgcc_s.so.1 => /lib/libgcc_s.so.1 (0x40053000)
libc.so.6 => /lib/i686/libc.so.6 (0x42000000)
/lib/ld-linux.so.2 => /lib/ld-linux.so.2 (0x40000000)
$ export LD_LIBRARY_PATH=/usr/foo/lib
$ ldd ./a.out
libstdc++.so.6 => /usr/foo/lib/libstdc++.so.6 (0x40013000)
libm.so.6 => /lib/i686/libm.so.6 (0x40107000)
libgcc_s.so.1 => /usr/foo/lib/libgcc_s.so.1 (0x40129000)
libc.so.6 => /lib/i686/libc.so.6 (0x42000000)
/lib/ld-linux.so.2 => /lib/ld-linux.so.2 (0x40000000)
$ ./a.out
hello, world
Thanks,
-Nathan
