Compiling a c program on a 64 bit machine with a 32 bit binary

Question

I am currently trying to use the libssh.dll library to implement a c program that shall connect to remote computers.I am using gcc to compile the program. When compiling this program, I received this error:

i386 architecture of input file 'libssh/bin/libssh.ddl' is incompatible with i386:x86-64 output

I tried compiling the program with the -m32 flag, but then i receive these errors:

/usr/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-pc-cygwin/4.8.2//libgcc_s.dll.a when searching for -lgcc_s
/usr/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-pc-cygwin/4.8.2//libgcc.a when searching for -lgcc
/usr/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-pc-cygwin/4.8.2/../../../libcygwin.a when searching for -lcygwin
/usr/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-pc-cygwin/4.8.2/libgcc_s.dll.a when searching for -lgcc_s
/usr/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-pc-cygwin/4.8.2//libgcc.a when searching for -lgcc

Any ideas how to fix this issue?

added to my makefile, but I still received the second set of errors as shown above — user3652784, May 28 '14 at 12:52
Try this: export CFLAGS='-m32' export CXXFLAGS='-m32' export LDFLAGS='-m32' — Ali Gajani, May 28 '14 at 12:53

Thomas Coudray · Accepted Answer · 2014-05-28T13:55:48.400

0

You need to install the 32-bit version of the C library.

The 32-bit libraries are required if you want to be able to compile and link with the -m32 option.

Have you installed cygwin32 ?

edited May 28 '14 at 13:55

answered May 28 '14 at 12:53

Thomas Coudray

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I am using cygwin, I do not have linux installed. – user3652784 May 28 '14 at 13:15
I shall try installing cygwin32 bit and compiling it with the gcc library present there – user3652784 May 28 '14 at 13:15
I have installed the cygwin 32 bit version for windows, and it is working correctly. Thank you for the help :) – user3652784 May 28 '14 at 14:03

Compiling a c program on a 64 bit machine with a 32 bit binary

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