Square-bracket syntax for array arguments to functions not handled

[eternaleye]

While compiling lmdb:

<command-line>:0:1: warning: undefining "__LINE__"
("mtest.c": line 24): Corrode doesn't handle this yet:
    * argv[]

The following change to the C source fixes the issue:

diff --git a/libraries/liblmdb/mtest.c b/libraries/liblmdb/mtest.c
index 28a33d443299..067dfbe27467 100644
--- a/libraries/liblmdb/mtest.c
+++ b/libraries/liblmdb/mtest.c
@@ -21,7 +21,7 @@
 #define CHECK(test, msg) ((test) ? (void)0 : ((void)fprintf(stderr, \
        "%s:%d: %s: %s\n", __FILE__, __LINE__, msg, mdb_strerror(rc)), abort()))

-int main(int argc,char * argv[])
+int main(int argc,char ** argv)
 {
        int i = 0, j = 0, rc;
        MDB_env *env;

This might be a good entry-level fix for a new contributor

[Gaelan]

Make uses the following program to test the C compiler, making corrode unusable for any CMake-compiled code:

#ifdef __cplusplus
# error "The CMAKE_C_COMPILER is set to a C++ compiler"
#endif
#if defined(__CLASSIC_C__)
int main(argc, argv)
  int argc;
  char* argv[];
#else
int main(int argc, char* argv[])
#endif
{ (void)argv; return argc-1;}