[Buildroot] [PATCH 1/1] trace-cmd: overwrite CFLAGS

[Romain Naour <romain.naour@openwide.fr>]

Ptrace support detection is ignored when CFLAGS is set by buildroot.

Use override in Makefile to add -DWARN_NO_PTRACE and -DNO_PTRACE in CFLAGS
if ptrace is not available.

Fixes:
http://autobuild.buildroot.net/results/60e/60ed317d52d93ba2c087aa6ff4f422d760806d89//

Signed-off-by: Romain <romain.naour@openwide.fr>
---
  .../trace-cmd-0002-Makefile-overwrite-CFLAGS.patch | 33 
++++++++++++++++++++++
  1 file changed, 33 insertions(+)
  create mode 100644 
package/trace-cmd/trace-cmd-0002-Makefile-overwrite-CFLAGS.patch

diff --git 
a/package/trace-cmd/trace-cmd-0002-Makefile-overwrite-CFLAGS.patch 
b/package/trace-cmd/trace-cmd-0002-Makefile-overwrite-CFLAGS.patch
new file mode 100644
index 0000000..f4afa53
--- /dev/null
+++ b/package/trace-cmd/trace-cmd-0002-Makefile-overwrite-CFLAGS.patch
@@ -0,0 +1,33 @@
+
+Ptrace support detection is ignored when CFLAGS is set in command 
arguments.
+
+Use override in Makefile to add -DWARN_NO_PTRACE and -DNO_PTRACE in CFLAGS
+if ptrace is not available.
+
+Signed-off-by: Romain <romain.naour@openwide.fr>
+---
+ Makefile | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/Makefile b/Makefile
+index 2f862ec..51b0df3 100644
+--- a/Makefile
++++ b/Makefile
+@@ -229,12 +229,12 @@ CFLAGS += -D_GNU_SOURCE
+ ifndef NO_PTRACE
+ ifneq ($(call try-cc,$(SOURCE_PTRACE),),y)
+     NO_PTRACE = 1
+-    CFLAGS += -DWARN_NO_PTRACE
++    override CFLAGS += -DWARN_NO_PTRACE
+ endif
+ endif
+
+ ifdef NO_PTRACE
+-CFLAGS += -DNO_PTRACE
++override CFLAGS += -DNO_PTRACE
+ endif
+
+ # Append required CFLAGS
+--
+1.8.1.4
+
-- 
1.8.1.4