[PATCH v1 1/3] perf config: Add -DNO_GLIBC to CFLAGS

From: Jin Yao
Date: Mon Mar 26 2018 - 04:13:01 EST


For most of libraries, in perf.config, they can be recorded with
-DHAVE_XXX or -DNO_XXX in CFLAGS according to if they are compiled-in.
Then C code could know if the library is compiled-in or not.

While for glibc, no existing -DHAVE_XXX or -DNO_XXX.

This patch adds -DNO_GLIBC to CFLAGS.

Signed-off-by: Jin Yao <yao.jin@xxxxxxxxxxxxxxx>
---
tools/perf/Makefile.config | 2 ++
1 file changed, 2 insertions(+)

diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config
index 98ff736..5883dd6 100644
--- a/tools/perf/Makefile.config
+++ b/tools/perf/Makefile.config
@@ -324,6 +324,8 @@ else
NO_LIBBPF := 1
NO_JVMTI := 1
else
+ CFLAGS += -DNO_GLIBC
+
ifneq ($(filter s% -static%,$(LDFLAGS),),)
msg := $(error No static glibc found, please install glibc-static);
else
--
2.7.4