building lcc 4.2 on linux

Hi,

I've just built lcc for linux and found some issues
that perhaps could be fixed:


* As re****ted before, (Message-ID: <bvqf4t$ft5$1@[EMAIL PROTECTED]
>
  or <1156087442.615889.184160@[EMAIL PROTECTED]
>)
  cpp is not longer found /usr/lib/gcc/i486-linux-gnu/4.1.2/ (or
  similar). So, if the gcc preprocessor is still required (is it?),
  then linux.c should be updated. I tried the following (not really
  knowing what I'm doing here - i.e. are there any potential
  problems with the absolute path to cpp?):


--- etc/linux.c.orig    2008-04-18 09:37:10.000000000 +0200
+++ etc/linux.c 2008-04-18 10:12:26.000000000 +0200
@[EMAIL PROTECTED]
 -10,8 +10,8 @[EMAIL PROTECTED]
 
 char *suffixes[] = { ".c", ".i", ".s", ".o", ".out", 0 };
 char inputs[256] = "";
-char *cpp[] = { LCCDIR "gcc/cpp",
-       "-U__GNUC__", "-D_POSIX_SOURCE", "-D__STDC__=1",
"-D__STRICT_ANSI__",
+char *cpp[] = {"/usr/bin/cpp",
+       "-U__GNUC__", "-D_POSIX_SOURCE", "-D__STRICT_ANSI__",
        "-Dunix", "-Di386", "-Dlinux",
        "-D__unix__", "-D__i386__", "-D__linux__", "-D__signed__=signed",
        "$1", "$2", "$3", 0 };
@[EMAIL PROTECTED]
 -35,7 +35,7 @[EMAIL PROTECTED]
 
 int option(char *arg) {
        if (strncmp(arg, "-lccdir=", 8) == 0) {
-               cpp[0] = concat(&arg[8], "/gcc/cpp");
+               cpp[0] = "/usr/bin/cpp";
                include[0] = concat("-I", concat(&arg[8], "/include"));
                include[1] = concat("-I", concat(&arg[8],
"/gcc/include"));
                ld[9]  = concat(&arg[8], "/gcc/crtbegin.o");



* There is another change shown in the diff above, which avoids constants
  warnings about the redefinition of __STDC__:

lcc/4.2/x86-linux/rcc -target=x86/linux
lcc/4.2/x86-linux/x86/linux/tst/8q.s:
<command line>:1:1: warning: "__STDC__" redefined
<built-in>: warning: this is the location of the previous definition

  I removed the definition "-D__STDC__=1", from the driver linux.c.



* Finally the test doesn't run very smooth; its result is:


lcc/4.2/x86-linux/rcc -target=x86/linux
lcc/4.2/x86-linux/x86/linux/tst/8q.s:
lcc/4.2/x86-linux/rcc -target=x86/linux
lcc/4.2/x86-linux/x86/linux/tst/array.s:
lcc/4.2/x86-linux/rcc -target=x86/linux
lcc/4.2/x86-linux/x86/linux/tst/cf.s:
lcc/4.2/x86-linux/rcc -target=x86/linux
lcc/4.2/x86-linux/x86/linux/tst/cq.s:
lcc/4.2/x86-linux/rcc -target=x86/linux
lcc/4.2/x86-linux/x86/linux/tst/cvt.s:
lcc/4.2/x86-linux/rcc -target=x86/linux
lcc/4.2/x86-linux/x86/linux/tst/fields.s:
lcc/4.2/x86-linux/rcc -target=x86/linux
lcc/4.2/x86-linux/x86/linux/tst/front.s:
lcc/4.2/x86-linux/rcc -target=x86/linux
lcc/4.2/x86-linux/x86/linux/tst/incr.s:
lcc/4.2/x86-linux/rcc -target=x86/linux
lcc/4.2/x86-linux/x86/linux/tst/init.s:
lcc/4.2/x86-linux/rcc -target=x86/linux
lcc/4.2/x86-linux/x86/linux/tst/limits.s:
lcc/4.2/x86-linux/rcc -target=x86/linux
lcc/4.2/x86-linux/x86/linux/tst/paranoia.s:
117c117
< pushl $.LC2
---
> pushl $.LC14
120c120
< pushl $_iob+32
---
> pushl stdout
125c125
[...
 about 6660 more lines of diffs!
 ...]
20577c20581
< .LC8:
---
> .LC19:
20581c20585
< .LC2:
---
> .LC14:
lcc/4.2/x86-linux/rcc -target=x86/linux
lcc/4.2/x86-linux/x86/linux/tst/sort.s:
lcc/4.2/x86-linux/rcc -target=x86/linux
lcc/4.2/x86-linux/x86/linux/tst/spill.s:
lcc/4.2/x86-linux/rcc -target=x86/linux
lcc/4.2/x86-linux/x86/linux/tst/stdarg.s:
lcc/4.2/x86-linux/rcc -target=x86/linux
lcc/4.2/x86-linux/x86/linux/tst/struct.s:
lcc/4.2/x86-linux/rcc -target=x86/linux
lcc/4.2/x86-linux/x86/linux/tst/switch.s:
lcc/4.2/x86-linux/rcc -target=x86/linux
lcc/4.2/x86-linux/x86/linux/tst/wf1.s:
lcc/4.2/x86-linux/rcc -target=x86/linux
lcc/4.2/x86-linux/x86/linux/tst/yacc.s:
25,27c25,27
< jmp .LC3
< .LC2:
< .LC5:
---
> jmp .LC14
> .LC13:
> .LC16:
30c30
< jl .LC6
---
> jl .LC17
[...
 about 1150 more lines of diffs!
 ...]


Anyway, the resulting compiler appears to be working! Great work!


Olaf