c3c 0.7.6

if(GIT_FOUND AND EXISTS "${CMAKE_SOURCE_DIR}/.git")
    # We are inside of a git repository so rebuilding the hash every time something changes.
    add_custom_command(
            OUTPUT "${CMAKE_BINARY_DIR}/git_hash.h"
            COMMAND ${CMAKE_COMMAND} -P "${CMAKE_CURRENT_LIST_DIR}/git_hash.cmake"
            DEPENDS "${CMAKE_CURRENT_LIST_DIR}/.git")
else()
    # We are NOT inside of a git repository. Building the has only once.
    add_custom_command(
            OUTPUT "${CMAKE_BINARY_DIR}/git_hash.h"
            COMMAND ${CMAKE_COMMAND} -P "${CMAKE_CURRENT_LIST_DIR}/git_hash.cmake"
    )
endif()

// $ cat main.c2

module hello_main;

import stdio as io;

public fn i32 main(i32 argc, char** argv) {
    io.printf("Hello C2!\n");
    return 0;
}

// WARNING: this file is auto-generated by the C2 compiler.
// Any changes you make might be lost!

#ifndef EXTERNAL_H
#define EXTERNAL_H

#if defined(__clang__)
#  pragma clang diagnostic ignored "-Wincompatible-library-redeclaration"
#  pragma clang diagnostic ignored "-Wunknown-warning-option"
#  pragma clang diagnostic ignored "-Wparentheses-equality"
#  pragma clang diagnostic ignored "-Wsometimes-uninitialized"
#  pragma clang diagnostic ignored "-Wtypedef-redefinition"
#  pragma clang diagnostic ignored "-Wstring-plus-int"
#  if (__clang_major__ >= 10)
#    define fallthrough  __attribute__((fallthrough))
#  endif
#elif defined(__GNUC__)
#  if (__GNUC__ >= 11)
#    define fallthrough  [[fallthrough]]
#  elif (__GNUC__ >= 7)
#    define fallthrough  __attribute__((fallthrough))
#  endif
#  pragma GCC diagnostic ignored "-Wmain"
#  if (__GNUC__ >= 10)
#    pragma GCC diagnostic ignored "-Wzero-length-bounds"
#  endif
#  if (__GNUC__ >= 7)
#    pragma GCC diagnostic ignored "-Wformat-overflow"
#    pragma GCC diagnostic ignored "-Wstringop-overflow"
#  endif
#endif

#ifndef fallthrough
#  define fallthrough
#endif

// --- internally added ---
typedef signed char int8_t;
typedef unsigned char uint8_t;
typedef signed short int16_t;
typedef unsigned short uint16_t;
typedef signed int int32_t;
typedef unsigned int uint32_t;
typedef signed long int64_t;
typedef unsigned long uint64_t;
typedef signed long ssize_t;
typedef unsigned long size_t;
#define true 1
#define false 0

#define NULL ((void*)0)
#define ARRAY_SIZE(x) (sizeof(x)/sizeof((x)[0]))
#define offsetof(type, member) __builtin_offsetof(type, member)
#define to_container(type, member, ptr) ((type*)((char*)(ptr) - offsetof(type, member)))

int dprintf(int fd, const char *format, ...);
void abort(void);
static int c2_assert(const char* filename, int line, const char* funcname, const char* condstr) {
    dprintf(2, "%s:%d: function %s: Assertion failed: %s\n", filename, line, funcname, condstr);
    abort();
    return 0;
}
static int c2_strswitch(const char* s1, const char* s2) {
    if (!s1) return 0;  // nil
    if (!*s1) return 1; // ""
    int idx = 2;
    while (*s2) {
        unsigned len = *s2++ & 0xFF;
        for (unsigned i = 0;; i++) {
            if (i == len) {
                if (s1[i] == '\0')
                    return idx;
                break;
            }
            if (s1[i] != s2[i])
                break;
        }
        s2 += len;
        idx++;
    }
    return idx;
}
#endif

// --- module c2 ---



// --- module varargs ---
// Note: this module is a special case and is custom generated
#define va_list __builtin_va_list
#define va_start __builtin_va_start
#define va_end __builtin_va_end


// --- module stdio ---

__attribute__((__format__(printf, 1, 2)))
int printf(const char* __format, ...);


// --- module hello_main ---

int32_t main(int32_t argc, char** argv);

int32_t main(int32_t argc, char** argv)
{
   printf("Hello C2!\n");
   return 0;
}