Building on MinGW

mkleehammer/pyodbc/mkleehammer#1168

setup.py

@@ -1,6 +1,6 @@
 #!/usr/bin/env python
 
-import sys, os, re, shlex
+import sys, os, re, shlex, sysconfig
 from os.path import exists, abspath, dirname, join, isdir, relpath, expanduser
 
 try:
@@ -153,7 +153,15 @@ def get_compiler_settings(version_str):
         except ValueError:
             pass
 
-    if os.name == 'nt':
+    if 'mingw' in sysconfig.get_platform():
+        # Windows mingw (note that os.name == 'nt' is True)
+        settings['extra_compile_args'].extend([
+            '-Wno-write-strings',
+            '-Wno-deprecated-declarations',
+        ])
+        settings['libraries'].append('odbc32')
+
+    elif os.name == 'nt':
         settings['extra_compile_args'].extend([
             '/Wall',
             '/wd4514',          # unreference inline function removed

src/pyodbc.h

@@ -31,6 +31,7 @@ typedef unsigned long long UINT64;
 #ifdef __MINGW32__
   #include <windef.h>
   #include <malloc.h>
+  #include <windows.h>
 #else
   inline int max(int lhs, int rhs) { return (rhs > lhs) ? rhs : lhs; }
 #endif
@@ -119,6 +120,11 @@ inline void _strlwr(char* name)
 #define CDECL
 #endif
 
+#ifdef __MINGW32__
+#define min(X,Y) ((X) < (Y) ? (X) : (Y))
+#define max(X,Y) ((X) > (Y) ? (X) : (Y))
+#endif
+
 #define STRINGIFY(x) #x
 #define TOSTRING(x) STRINGIFY(x)