v broken again on freebsd when using clang, the default compiler

[bakul]

Describe the bug

Compile of simple programs fails with clang. With tcc it succeeds but a) /usr/include/sys/cdefs.h needs to be patched and b) many more tests fail with tcc and c) tcc shouldn't be required.

Reproduction Steps

echo "println('Hello, World!')" > hello.v
v run hello.v # this will work if tcc is the default
v -cc clang run hello.v  # this will fail

Expected Behavior

not break

Current Behavior

compiling produces the following (70 line output truncated):

failed thirdparty object build cmd:
'clang' -std=c99 -D_DEFAULT_SOURCE    -fPIC -D GC_BUILTIN_ATOMIC=1 -D BUS_PAGE_FAULT=T_PAGEFLT -D USE_MMAP -D GC_THREADS=1 -I "/usr/remotes/github/vlang/v/thirdparty/libgc/include" -o '/home/bakul/.vmodules/cache/c7/c7d3a369f02ed78f1f27f2b997e2aa65.module.builtin.o' -c '/usr/remotes/github/vlang/v/thirdparty/libgc/gc.c'
builder error: /usr/remotes/github/vlang/v/thirdparty/libgc/gc.c:14208:27: error: incompatible pointer to integer conversion passing 'const void *' to parameter of type 'GC_word' (aka 'unsigned long') [-Wint-conversion]
 14208 |     REACHABLE_AFTER_DIRTY(q);
       |                           ^

Possible Solution

No response

Additional Information/Context

No response

V version

V 0.4.6 0d52a7d

Environment details (OS name and version, etc.)

V full version: V 0.4.6 0d52a7d
OS: freebsd, 14.1-STABLE, FreeBSD 14.1-STABLE stable/14-n267877-04a191c251e5 GENERIC
Processor: 16 cpus, 64bit, little endian

getwd: /usr/remotes/github/vlang/v
vexe: /usr/remotes/github/vlang/v/v
vexe mtime: 2024-06-07 21:07:02

vroot: OK, value: /usr/remotes/github/vlang/v
VMODULES: OK, value: /home/bakul/.vmodules
VTMP: OK, value: /tmp/v_1001

Git version: git version 2.45.1
Git vroot status: weekly.2024.23-4-g0d52a7d9
.git/config present: true

CC version: FreeBSD clang version 18.1.6 (https://github.com/llvm/llvm-project.git llvmorg-18.1.6-0-g1118c2e05e67)
thirdparty/tcc status: thirdparty-freebsd-amd64 5a541410

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[medvednikov]

Fixed.