compiling x64 application from ubuntu x86 using gcc compiler
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could you tell me how can I use cross compiler for building code.
1 from where will I get cross compiler.
2 How can I run cross compiler to build for dirrefernt architecture.
3 please give me some link to gather more information.
Let's start from the beginning. What errors are you getting when you attempt to compile your test program? Let's make sure it really is a cross-compilation issue.
while compiling test.cpp I get the following error
/usr/bin/ld: skipping incompatible /usr/lib/gcc/i486-linux-gnu/4.1.2/../../../libm.so when searching for -lm
/usr/bin/ld: skipping incompatible /usr/lib/gcc/i486-linux-gnu/4.1.2/../../../libm.a when searching for -lm
/usr/bin/ld: skipping incompatible /usr/bin/../lib/libm.so when searching for -lm
/usr/bin/ld: skipping incompatible /usr/bin/../lib/libm.a when searching for -lm
/usr/bin/ld: skipping incompatible /usr/lib/libm.so when searching for -lm
/usr/bin/ld: skipping incompatible /usr/lib/libm.a when searching for -lm
/usr/bin/ld: cannot find -lm
collect2: ld returned 1 exit status
content of test.cpp is
#include <iostream>
int main()
{
std::cout<<"Hello Amit";
return 0;
}
I am using the following command to compile
g++ -m64 test.cpp
OK, you need a 64-bit version of libm. This is provided by glibc. So you need to find a 64-bit version of glibc and stick libm in /usr/lib64, then add /usr/lib64 to /etc/ld.so.conf.
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