Fix preprocessor bugs

Author: rhpvorderman

src/isal/igzip_lib.c

@@ -660,8 +660,6 @@ PyDoc_STRVAR(IgzipDecompressor_needs_input_doc,
 PyDoc_STRVAR(IgzipDecompressor_crc_doc,
 "The checksum that is saved if DECOMP_ZLIB* or DECOMP_GZIP* flags are used.");
 
-#define offsetof(TYPE, MEMBER) __builtin_offsetof (TYPE, MEMBER)
-
 static PyMemberDef IgzipDecompressor_members[] = {
     {"eof", T_BOOL, offsetof(IgzipDecompressor, eof),
      READONLY, IgzipDecompressor_eof__doc__},

src/isal/isal_zlib_impl.h

@@ -222,7 +222,7 @@ newcompobject(PyTypeObject *type)
     #if PY_MAJOR_VERSION == 3 && PY_MINOR_VERSION == 7
     // Apparently the type refcount is not increased automatically with 
     // PyObject_New on 3.7
-    # pragma message: Include python 3.7 type ref fix.
+    # pragma message("Include python 3.7 type ref fix.")
     Py_INCREF(type);
     #endif
     if (self == NULL)

src/isal/python_args.h

@@ -13,7 +13,7 @@
 #define PY_SSIZE_T_CLEAN
 #include <Python.h>
 
-#pragma message "Including code from CPython getargs.c to enable faster arg parsing on python 3.7"
+#pragma message("Including code from CPython getargs.c to enable faster arg parsing on python 3.7")
 #define IS_END_OF_FORMAT(c) (c == '\0' || c == ';' || c == ':')
 
 #define FLAG_COMPAT 1