Re: Cannot Create Executables (configure and -fPIC/-pic)

[Robert Boehne]

Jeffrey,

If you look at config.log it will show you the test program that it was 
attempting
to compile, and what errors that attempt generated.  It seems like your
compiler doesn't like "-fPIC -pic" and it has little to do with autotools.

HTH,

Robert

On 08/21/12 17:06, Jeffrey Walton wrote:
> Hi All,
>
> When I try and run configure with -fPIC -pic (as opposed to -fPIE
> -pie), I receive "C compiler cannot create executables".
>
> ./configure CFLAGS="-Wall -Wextra -Wconversion -fPIC -pic
> -Wno-unused-parameter -Wformat=2 -Wformat-security
> -fstack-protector-all -Wstrict-overflow -Wl,-z,noexecstack
> -Wl,-z,relro -Wl,-z,now"
> checking build system type... x86_64-unknown-linux-gnu
> checking host system type... x86_64-unknown-linux-gnu
> checking target system type... x86_64-unknown-linux-gnu
> checking for gcc... gcc
> checking whether the C compiler works... no
> configure: error: in `/home/jeffrey/Desktop/sipwitch-1.3.1':
> configure: error: C compiler cannot create executables
> See `config.log' for more details
>
> Because LDFLAGS cannot distinguish between executables and shared
> objects, I was told to use -fPIC -pic: "using -fPIC instead of -fPIE
> is always ok" [1].
>
> Any ideas how to get automake and friends to build ASLR enabled
> executables and shared objects in this manner?
>
> Thanks in advance
> Jeff
>
> [1] Request: Add -aslr switch that invokes -fPIE/-pie or -fPIC/-shared
> as appropriate, http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52885