[PATCH 22/25] perf tools: Don't hardcode host include path for libslang

[Arnaldo Carvalho de Melo]

From: Florian Fainelli <f.fainelli@xxxxxxxxx>

Hardcoding /usr/include/slang is fundamentally incompatible with cross
compilation and will lead to the inability for a cross-compiled
environment to properly detect whether slang is available or not.

If /usr/include/slang is necessary that is a distribution specific
knowledge that could be solved with either a standard pkg-config .pc
file (which slang has) or simply overriding CFLAGS accordingly, but the
default perf Makefile should be clean of all of that.

Signed-off-by: Florian Fainelli <f.fainelli@xxxxxxxxx>
Cc: Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx>
Cc: Alexey Budankov <alexey.budankov@xxxxxxxxxxxxxxx>
Cc: bcm-kernel-feedback-list@xxxxxxxxxxxx
Cc: Jakub Kicinski <jakub.kicinski@xxxxxxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Quentin Monnet <quentin.monnet@xxxxxxxxxxxxx>
Cc: Stanislav Fomichev <sdf@xxxxxxxxxx>
Fixes: ef7b93a11904 ("perf report: Librarize the annotation code and use it in the newt browser")
Link: http://lkml.kernel.org/r/20190614183949.5588-1-f.fainelli@xxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
 tools/build/feature/Makefile | 2 +-
 tools/perf/Makefile.config   | 1 -
 2 files changed, 1 insertion(+), 2 deletions(-)

diff --git a/tools/build/feature/Makefile b/tools/build/feature/Makefile
index 523ee42db0c8..7ef7cf04a292 100644
--- a/tools/build/feature/Makefile
+++ b/tools/build/feature/Makefile
@@ -182,7 +182,7 @@ $(OUTPUT)test-libaudit.bin:
 	$(BUILD) -laudit
 
 $(OUTPUT)test-libslang.bin:
-	$(BUILD) -I/usr/include/slang -lslang
+	$(BUILD) -lslang
 
 $(OUTPUT)test-libcrypto.bin:
 	$(BUILD) -lcrypto
diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config
index 5f16a20cae86..e04b7a81d221 100644
--- a/tools/perf/Makefile.config
+++ b/tools/perf/Makefile.config
@@ -648,7 +648,6 @@ ifndef NO_SLANG
     NO_SLANG := 1
   else
     # Fedora has /usr/include/slang/slang.h, but ubuntu /usr/include/slang.h
-    CFLAGS += -I/usr/include/slang
     CFLAGS += -DHAVE_SLANG_SUPPORT
     EXTLIBS += -lslang
     $(call detected,CONFIG_SLANG)
-- 
2.20.1