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-rw-r--r--flashrom.c33
1 files changed, 31 insertions, 2 deletions
diff --git a/flashrom.c b/flashrom.c
index 8befab3..db44c2f 100644
--- a/flashrom.c
+++ b/flashrom.c
@@ -39,8 +39,37 @@ enum programmer programmer = PROGRAMMER_INTERNAL;
#elif DUMMY_SUPPORT == 1
enum programmer programmer = PROGRAMMER_DUMMY;
#else
-/* Activating the #error explodes on make dep. */
-//#error Neither internal nor dummy selected
+/* If neither internal nor dummy are selected, we must pick a sensible default.
+ * Since there is no reason to prefer a particular external programmer, we fail
+ * if more than one of them is selected. If only one is selected, it is clear
+ * that the user wants that one to become the default.
+ */
+#if NIC3COM_SUPPORT+GFXNVIDIA_SUPPORT+DRKAISER_SUPPORT+SATASII_SUPPORT+FT2232_SPI_SUPPORT+SERPROG_SUPPORT+BUSPIRATE_SPI_SUPPORT > 1
+#error Please enable either CONFIG_DUMMY or CONFIG_INTERNAL or disable support for all external programmers except one.
+#endif
+enum programmer programmer =
+#if NIC3COM_SUPPORT == 1
+ PROGRAMMER_NIC3COM
+#endif
+#if GFXNVIDIA_SUPPORT == 1
+ PROGRAMMER_GFXNVIDIA
+#endif
+#if DRKAISER_SUPPORT == 1
+ PROGRAMMER_DRKAISER
+#endif
+#if SATASII_SUPPORT == 1
+ PROGRAMMER_SATASII
+#endif
+#if FT2232_SPI_SUPPORT == 1
+ PROGRAMMER_FT2232SPI
+#endif
+#if SERPROG_SUPPORT == 1
+ PROGRAMMER_SERPROG
+#endif
+#if BUSPIRATE_SPI_SUPPORT == 1
+ PROGRAMMER_BUSPIRATESPI
+#endif
+;
#endif
char *programmer_param = NULL;
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