[flashrom] [PATCH] Print clang version

[Carl-Daniel Hailfinger]

Newer llvm/clang versions (since r102686) have a __clang_version__ macro
which can be used to print the exact clang version.

Fix a case where chip_to_probe was referenced twice via extern, once at
the function level and once in a global include file. Found by latest clang.

Tested on old and new clang.

Signed-off-by: Carl-Daniel Hailfinger

Index: flashrom-clang_version/w29ee011.c
===================================================================
--- flashrom-clang_version/w29ee011.c	(Revision 1073)
+++ flashrom-clang_version/w29ee011.c	(Arbeitskopie)
@@ -26,7 +26,6 @@
 {
    chipaddr bios = flash->virtual_memory;
    uint8_t id1, id2;
-	extern char *chip_to_probe;

if (!chip_to_probe || strcmp(chip_to_probe, "W29EE011")) {
    	msg_cdbg("Probing disabled for Winbond W29EE011 because "
Index: flashrom-clang_version/flashrom.c
===================================================================
--- flashrom-clang_version/flashrom.c	(Revision 1073)
+++ flashrom-clang_version/flashrom.c	(Arbeitskopie)
@@ -1272,7 +1272,12 @@
 #endif
 #endif
 #ifdef __clang__
-	msg_ginfo(" LLVM %i/clang %i, ", __llvm__, __clang__);
+	msg_ginfo(" LLVM Clang");
+#ifdef __clang_version__
+	msg_ginfo(" %s,", __clang_version__);
+#else
+	msg_ginfo(" unknown version (before r102686),");
+#endif
 #elif defined(__GNUC__)
    msg_ginfo(" GCC");
 #ifdef __VERSION__