[RFC PATCH 3/4] gcov: compile specific gcov implementation based on gcc version

[Frantisek Hrbata]

Compile the correct gcov implementation file for a specific gcc version. In
the future, if another file is added, the conditions will need to be somehow
adjusted to if-elif-else case, but at this point the simple cc-ifversion should
be enough.

Signed-off-by: Frantisek Hrbata <fhrbata@xxxxxxxxxx>
---
 kernel/gcov/Makefile | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/kernel/gcov/Makefile b/kernel/gcov/Makefile
index e97ca59..d57b712 100644
--- a/kernel/gcov/Makefile
+++ b/kernel/gcov/Makefile
@@ -1,3 +1,6 @@
 ccflags-y := -DSRCTREE='"$(srctree)"' -DOBJTREE='"$(objtree)"'
 
-obj-$(CONFIG_GCOV_KERNEL) := base.o fs.o gcc_3_4.o
+obj-$(CONFIG_GCOV_KERNEL) := base.o fs.o
+
+obj-$(CONFIG_GCOV_KERNEL) += $(call cc-ifversion, -ge, 0407, gcc_4_7.o)
+obj-$(CONFIG_GCOV_KERNEL) += $(call cc-ifversion, -lt, 0407, gcc_3_4.o)
-- 
1.8.3.1

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