http://www.perlmonks.org?node_id=79856

MrNobo1024 has asked for the wisdom of the Perl Monks concerning the following question:

I've been experimenting with creating XS modules, but I can't get it to work. When I run nmake, it says
gcc -c -O1 -MD -DNDEBUG -DWIN32 -D_CONSOLE -DNO_STRICT -DHAVE_DES_FCR +YP T -DPERL_IMPLICIT_CONTEXT -DPERL_IMPLICIT_SYS -DPERL_MSVCRT_READFIX -O +1 -MD -DND EBUG -DVERSION=\"0.01\" -DXS_VERSION=\"0.01\" -IC:\PERL\lib\CORE + xstest.c xstest.c: In function `boot_xstest': xstest.c:37: incompatible type for argument 1 of `strcmp' NMAKE : fatal error U1077: 'GCC' : return code '0x1' Stop.
Is there any way to fix this problem? I'm using ActivePerl 5.6.1 and MinGW 2.95.2.

Replies are listed 'Best First'.
Re: Can't compile XS, getting "strcmp" error
by Anonymous Monk on May 12, 2001 at 04:57 UTC
Re: Can't compile XS, getting "strcmp" error
by AgentM (Curate) on May 12, 2001 at 02:50 UTC
    Ensure that xstest.c at line 37 contains a call to strcmp where the first argument is a char*. It's rather self-explanatory. If you need additional help, you need to post the relevant piece of code.
    AgentM Systems nor Nasca Enterprises nor Bone::Easy nor Macperl is responsible for the comments made by AgentM. Remember, you can build any logical system with NOR.
      Actually xstest.c dosen't call strcmp at all. The relevant code is

      xstest.xs:

      #include "EXTERN.h" #include "perl.h" #include "XSUB.h" MODULE = xstest PACKAGE = xstest void hello() CODE: printf("Hello, world!\n");
      xstest.c:
      /* * This file was generated automatically by xsubpp version 1.9508 from + the * contents of xstest.xs. Do not edit this file, edit xstest.xs instea +d. * * ANY CHANGES MADE HERE WILL BE LOST! * */ #line 1 "xstest.xs" #include "EXTERN.h" #include "perl.h" #include "XSUB.h" #line 16 "xstest.c" XS(XS_xstest_hello) { dXSARGS; if (items != 0) Perl_croak(aTHX_ "Usage: xstest::hello()"); { #line 11 "xstest.xs" printf("Hello, world!\n"); #line 25 "xstest.c" } XSRETURN_EMPTY; } #ifdef __cplusplus extern "C" #endif XS(boot_xstest) { dXSARGS; char* file = __FILE__; XS_VERSION_BOOTCHECK ; newXS("xstest::hello", XS_xstest_hello, file); XSRETURN_YES; }