+/*
+ * The order of the following two lines is important.
+ *
+ * SUPPRESS_FOPEN_REDEFINITION is defined before including git-compat-util.h
+ * to avoid the redefinition of fopen within git-compat-util.h. This is
+ * necessary since fopen is a macro on some platforms which may be set
+ * based on compiler options. For example, on AIX fopen is set to fopen64
+ * when _LARGE_FILES is defined. The previous technique of merely undefining
+ * fopen after including git-compat-util.h is inadequate in this case.
+ */
+#define SUPPRESS_FOPEN_REDEFINITION
#include "../git-compat-util.h"
-#undef fopen
+
FILE *git_fopen(const char *path, const char *mode)
{
FILE *fp;