For glibc versions before 2.17, clock_gettime() was contained in a
separate library and required linking with -lrt.
Signed-off-by: Petr Tesarik <ptesarik@xxxxxxxx>
---
Makefile | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/Makefile b/Makefile
index e870b13..9c24387 100644
--- a/Makefile
+++ b/Makefile
@@ -68,6 +68,18 @@ endif
LIBS := -lpthread $(LIBS)
+try-run = $(shell set -e; \
+ TMP=".$$$$.tmp"; \
+ if ($(1)) >/dev/null 2>&1; \
+ then echo "$(2)"; \
+ else echo "$(3)"; \
+ fi; \
+ rm -f "$$TMP")
+
+LINK_TEST_PROG="int clock_gettime(); int main(){ return clock_gettime(); }"
+LIBS := $(LIBS) $(call try-run,\
+ echo $(LINK_TEST_PROG) | $(CC) $(CFLAGS) -o "$$TMP" -x c -,,-lrt)
+
all: makedumpfile
$(OBJ_PART): $(SRC_PART)
--
2.16.4
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