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Revision 1.4


The following list describes steps to make PCC the system compiler.

__Debian GNU/Linux 4.0r0__

You must build and install the pcc-libs module which contains libpcc.a and stddef.h header files.

__SuSE Linux Ent Svr 10__

You must build and install the pcc-libs module which contains libpcc.a and stddef.h header files.

__Mandriva Corporate Server 4.0__

You must build and install the pcc-libs module which contains libpcc.a and stddef.h header files.

__Red Hat Ent Linux 5__

You must build and install the pcc-libs module which contains libpcc.a and stddef.h header files.

__NetBSD 4.0 (i386/mips/arm/powerpc)__

NetBSD 4.0 needs at least this change:

    --- sys/sys/cdefs.h     13 Nov 2006 05:44:37 -0000      1.64
    +++ sys/sys/cdefs.h     12 Apr 2008 13:30:29 -0000
    @@ -245,7 +245,7 @@
     #endif /* _KERNEL */
     
     #if !defined(_STANDALONE)&& !defined(_KERNEL)
    -#ifdef __GNUC__
    +#if defined(__GNUC__) || defined(__PCC__)
     #define        __RENAME(x)     ___RENAME(x)
     #else
     #ifdef __lint__

and for varargs to work on arm:

    --- sys/arch/arm/include/stdarg.h    11 Dec 2005 12:16:47 -0000      1.9
    +++ sys/arch/arm/include/stdarg.h    12 Apr 2008 13:36:13 -0000
    @@ -46,7 +46,7 @@
     #define        __builtin_va_copy(d, s)         ((d) = (s))
     #endif
     
    -#if __GNUC_PREREQ__(2, 96)
    +#if (__GNUC_PREREQ__(2, 96) || defined(__PCC__))
     #define        va_start(ap, last)      __builtin_stdarg_start((ap), (last))
     #define        va_arg                  __builtin_va_arg
     #define        va_end                  __builtin_va_end

A similar change may be required for other platforms as well.


__NetBSD 3.0 (i386/mips/arm/powerpc)__

The following patch is required:

    --- cdefs.h.orig   2007-12-02 16:45:11.000000000 -0300
    +++ cdefs.h     2007-11-27 02:09:52.000000000 -0300
    @@ -92,7 +92,7 @@
     #define        __const         const           /* define reserved names to standard */
     #define        __signed        signed
     #define        __volatile      volatile
    -#if defined(__cplusplus)
    +#if defined(__cplusplus) || defined(__PCC__)
     #define        __inline        inline          /* convert to C++ keyword */
     #else
     #if !defined(__GNUC__)&& !defined(__lint__)
    @@ -201,6 +201,10 @@
     #define        __packed        __attribute__((__packed__))
     #define        __aligned(x)    __attribute__((__aligned__(x)))
     #define        __section(x)    __attribute__((__section__(x)))
    +#elif defined(__PCC__)
    +#define        __packed        /* not yet */
    +#define        __aligned(x)    /* not yet */
    +#define        __section(x)    /* not yet */
     #elif defined(__lint__)
     #define        __packed        /* delete */
     #define        __aligned(x)    /* delete */
    @@ -245,7 +249,7 @@
     #endif /* _KERNEL */
 
     #if !defined(_STANDALONE)&& !defined(_KERNEL)
    -#if defined(__GNUC__)
    +#if defined(__GNUC__) || defined(__PCC__)
     #define        __RENAME(x)     ___RENAME(x)
     #else
     #ifdef __lint__
    --- stdlib.h.orig       2007-12-02 16:47:42.000000000 -0300
    +++ stdlib.h    2007-11-30 19:48:58.000000000 -0300
    @@ -237,6 +237,8 @@
     #if defined(alloca)&& (alloca == __builtin_alloca)
           && defined(__GNUC__) && (__GNUC__ < 2)
     void   *alloca(int);     /* built-in for gcc */ 
    +#elif defined(__PCC__)
    +#define alloca(size)   __builtin_alloca(size)
     #else 
     void   *alloca(size_t); 
     #endif /* __GNUC__ */

Additionally, for stdargs to work properly, changes to the machine-dependent stdargs.h is required (something like this):

    --- mips/stdarg.h.orig       2007-12-02 17:02:55.000000000 -0300
    +++ mips/stdarg.h    2007-12-02 17:01:59.000000000 -0300
    @@ -59,6 +59,13 @@
     #define va_end(ap)             __builtin_va_end((ap))
     #define __va_copy(dest, src)   __builtin_va_copy((dest), (src))
 
    +#elif defined(__PCC__)
    +
    +#define va_start(ap, last)     __builtin_stdarg_start((ap), last)
    +#define va_arg(ap, type)       __builtin_va_arg((ap), type)
    +#define va_end(ap)             __builtin_va_end((ap))
    +#define __va_copy(dest, src)   __builtin_va_copy((dest), (src))
    +
     #else
 
     #define        va_start(ap, last) \

__Mac OS X 10.4 (powerpc)__

You must build and install the pcc-libs module which contains libpcc.a

Many OS X header files use the preprocessor directive #pragma pack(), which isn't supported by PCC.  Ignore the warning for the moment and hope that it doesn't matter too much.

Additionally, stdargs.h only works with gcc.  Paste the following lines into /usr/local/lib/pcc/stdarg.h:

    #ifndef _STDARG_H_
    #define _STDARG_H_

    #define va_list char *
    #define _VA_LIST

    #define va_start(ap, last)      __builtin_stdarg_start((ap), last)
    #define va_arg(ap, type)        __builtin_va_arg((ap), type)
    #define va_end(ap)              __builtin_va_end((ap))
    #define va_copy(dest, src)      __builtin_va_copy((dest), (src))

    #endif

__Mac OS X 10.5 (powerpc)__

You must build and install the pcc-libs module which contains libpcc.a.

Some of the issues may apply from OS X 10.4 discussed above.

__Mac OS X 10.5 (intel)__

Unsupported until changes are brought over from powerpc.

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