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* [Buildroot] [PATCH v5 0/9] Misc. CMake fixes
@ 2016-10-15 21:03 Samuel Martin
  2016-10-15 21:03 ` [Buildroot] [PATCH v5 1/9] package/pkg-cmake.mk: fix build type and optimization flags Samuel Martin
                   ` (8 more replies)
  0 siblings, 9 replies; 12+ messages in thread
From: Samuel Martin @ 2016-10-15 21:03 UTC (permalink / raw)
  To: buildroot

Hi all,

Here is a short series reworking the way the Buildroot's CMake
infrastructure handles compiler/linker flags.

Patch 1 to 3 fix the optimization and debug flags passed/set by CMake
through the toolchainfile.cmake file.

Patches 4 to 8 clean up CMake-based package regarding {C,CXX,LD}FLAGS.

Patch 9 reworks the way the compiler/linker flags are set in
toolchainfile.cmake.

Regards,
Sam


Max Filippov (1):
  package/opencv3: fix CMAKE_CXX_FLAGS

Samuel Martin (8):
  package/pkg-cmake.mk: fix build type and optimization flags
  package/pkg-cmake.mk: move CMAKE_BUILD_TYPE definition into
    toolchainfile.cmake
  toolchainfile.cmake: set per-config appended {C,CXX}FLAGS
  package/gflags: include TARGET_CXXFLAGS to the overloaded CXXFLAGS
  package/gnuradio: include TARGET_CFLAGS to the overloaded CFLAGS
  package/libcec: include TARGET_{C,CXX}FLAGS to the overloaded
    {C,CXX}FLAGS
  package/rpi-userland: include TARGET_CFLAGS to the overloaded CFLAGS
  toochainfile.cmake: rework the way Buildroot sets flags

 CHANGES                              |  9 +++++++++
 package/gflags/gflags.mk             |  3 ++-
 package/gnuradio/gnuradio.mk         |  2 +-
 package/libcec/libcec.mk             |  5 +++--
 package/opencv3/opencv3.mk           |  2 +-
 package/pkg-cmake.mk                 | 10 +++++++++-
 package/rpi-userland/rpi-userland.mk |  3 ++-
 support/misc/toolchainfile.cmake.in  | 32 ++++++++++++++++++++++++++++----
 8 files changed, 55 insertions(+), 11 deletions(-)

--
2.10.0

^ permalink raw reply	[flat|nested] 12+ messages in thread
* [Buildroot] [PATCH v5 1/9] package/pkg-cmake.mk: fix build type and optimization flags
  2016-10-15 21:03 [Buildroot] [PATCH v5 0/9] Misc. CMake fixes Samuel Martin
@ 2016-10-15 21:03 ` Samuel Martin
  2016-10-15 22:14   ` Arnout Vandecappelle
  2016-10-15 21:03 ` [Buildroot] [PATCH v5 2/9] package/pkg-cmake.mk: move CMAKE_BUILD_TYPE definition into toolchainfile.cmake Samuel Martin
                   ` (7 subsequent siblings)
  8 siblings, 1 reply; 12+ messages in thread
From: Samuel Martin @ 2016-10-15 21:03 UTC (permalink / raw)
  To: buildroot

tl;dr:

Before applying this patch, CMake packages are built with the following
options:
  * if BR2_ENABLE_DEBUG is set:
    The CMake build type is set to RelWithDebInfo, which means:
    - Optimization level is forced to: -O2;
    - no log nor assert due to -DNDEBUG;
    - BR2_DEBUG_{1..3} effect is unchanged;
  * otherwise:
    The CMake build type is set to Release, which means:
    - Optimization level is forced to: -O3;
    - no log nor assert due to -DNDEBUG (as expected).
  In any case, the optimization WRT the binary size is always ignored and
  forced.

This change chooses the build type doing the closest thing to what
Buildroot attempts to do.

Long version:

Flags set by Buildroot depending on the configuration:

  BR2_ENABLE_DEBUG | Optim. level   | Buildroot {C,CXX}FLAGS
  =================+================+=======================
          y        | BR2_OPTIMIZE_S | -Os -gx
          y        | BR2_OPTIMIZE_G | -Og -gx
          y        | BR2_OPTIMIZE_n | -On -gx
          n        | BR2_OPTIMIZE_S | -Os
          n        | BR2_OPTIMIZE_G | -Og
          n        | BR2_OPTIMIZE_n | -On

Default flags appended by CMake depending on the build type:

  Build type     | Flags           | Effects on {C,CXX}FLAGS
  ===============+=================+===========================================
  Debug          | -g              | Force -g, compatible with BR2_ENABLE_DEBUG
  MinSizeRel     | -Os -DNDEBUG    | Set -Os, compatible with BR2_OPTIMIZE_S
  Release        | -O3 -DNDEBUG    | Set -O3, closest to the others cases,
                 |                 | though the optimization level is forced.
  RelWithDebInfo | -O2 -g -DNDEBUG | Force -g and set -O2, not friendly with BR

Since CMake appends its own build type flags and because of the gcc
option parser, the CMake flags takes precedence over the Buildroot
flags.

So, this change sets the build type in a very simple way depending on
the BR2_ENABLE_DEBUG symbol.

Follow-up patches will fix the CMake flag variables that are appended by
CMake.

Cc: Charles Hardin <ckhardin@exablox.com>
Cc: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Samuel Martin <s.martin49@gmail.com>
Signed-off-by: Maxime Hadjinlian <maxime.hadjinlian@gmail.com>

---
changes v4->v5:
- none

changes v3->v4:
- simplify build type selection
---
 package/pkg-cmake.mk | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/package/pkg-cmake.mk b/package/pkg-cmake.mk
index aca9e61..259865d 100644
--- a/package/pkg-cmake.mk
+++ b/package/pkg-cmake.mk
@@ -35,6 +35,14 @@ ifneq ($(QUIET),)
 CMAKE_QUIET = -DCMAKE_RULE_MESSAGES=OFF -DCMAKE_INSTALL_MESSAGE=NEVER
 endif
 
+# Set the CMake build type which matches the best the build configuration sets
+# in Buildroot.
+ifeq ($(BR2_ENABLE_DEBUG),y)
+BR_CMAKE_BUILD_TYPE=Debug
+else
+BR_CMAKE_BUILD_TYPE=Release
+endif
+
 ################################################################################
 # inner-cmake-package -- defines how the configuration, compilation and
 # installation of a CMake package should be done, implements a few hooks to
@@ -87,7 +95,7 @@ define $(2)_CONFIGURE_CMDS
 	PATH=$$(BR_PATH) \
 	$$($$(PKG)_CONF_ENV) $$(BR2_CMAKE) $$($$(PKG)_SRCDIR) \
 		-DCMAKE_TOOLCHAIN_FILE="$$(HOST_DIR)/usr/share/buildroot/toolchainfile.cmake" \
-		-DCMAKE_BUILD_TYPE=$$(if $$(BR2_ENABLE_DEBUG),RelWithDebInfo,Release) \
+		-DCMAKE_BUILD_TYPE=$(BR_CMAKE_BUILD_TYPE) \
 		-DCMAKE_INSTALL_PREFIX="/usr" \
 		-DCMAKE_COLOR_MAKEFILE=OFF \
 		-DBUILD_DOC=OFF \
-- 
2.10.0

^ permalink raw reply related	[flat|nested] 12+ messages in thread
* [Buildroot] [PATCH v5 2/9] package/pkg-cmake.mk: move CMAKE_BUILD_TYPE definition into toolchainfile.cmake
  2016-10-15 21:03 [Buildroot] [PATCH v5 0/9] Misc. CMake fixes Samuel Martin
  2016-10-15 21:03 ` [Buildroot] [PATCH v5 1/9] package/pkg-cmake.mk: fix build type and optimization flags Samuel Martin
@ 2016-10-15 21:03 ` Samuel Martin
  2016-10-15 22:42   ` Arnout Vandecappelle
  2016-10-15 21:03 ` [Buildroot] [PATCH v5 3/9] toolchainfile.cmake: set per-config appended {C, CXX}FLAGS Samuel Martin
                   ` (6 subsequent siblings)
  8 siblings, 1 reply; 12+ messages in thread
From: Samuel Martin @ 2016-10-15 21:03 UTC (permalink / raw)
  To: buildroot

This change still allows overriding the build type from the configure
command line.

Cc: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Cc: Maxime Hadjinlian <maxime.hadjinlian@gmail.com>
Signed-off-by: Samuel Martin <s.martin49@gmail.com>

---
changes v4->v5:
- fix cmake set call

changes v3->v4:
- new patch
---
 CHANGES                             | 6 ++++++
 package/pkg-cmake.mk                | 2 +-
 support/misc/toolchainfile.cmake.in | 3 +++
 3 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/CHANGES b/CHANGES
index b4bd5fe..c0e3e79 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,3 +1,9 @@
+2016.11-rc1,
+
+    toolchainfile.cmake:
+    * when used outside of Buildroot, if not specified on the command
+      line, the CMAKE_BUILD_TYPE is by toolchainfile.cmake.
+
 2016.08, Released September 1st, 2016
 
 	Minor fixes.
diff --git a/package/pkg-cmake.mk b/package/pkg-cmake.mk
index 259865d..5725ed6 100644
--- a/package/pkg-cmake.mk
+++ b/package/pkg-cmake.mk
@@ -95,7 +95,6 @@ define $(2)_CONFIGURE_CMDS
 	PATH=$$(BR_PATH) \
 	$$($$(PKG)_CONF_ENV) $$(BR2_CMAKE) $$($$(PKG)_SRCDIR) \
 		-DCMAKE_TOOLCHAIN_FILE="$$(HOST_DIR)/usr/share/buildroot/toolchainfile.cmake" \
-		-DCMAKE_BUILD_TYPE=$(BR_CMAKE_BUILD_TYPE) \
 		-DCMAKE_INSTALL_PREFIX="/usr" \
 		-DCMAKE_COLOR_MAKEFILE=OFF \
 		-DBUILD_DOC=OFF \
@@ -255,5 +254,6 @@ $(HOST_DIR)/usr/share/buildroot/toolchainfile.cmake:
 		-e 's#@@TARGET_FC@@#$(subst $(HOST_DIR)/,,$(call qstrip,$(TARGET_FC)))#' \
 		-e 's#@@CMAKE_SYSTEM_PROCESSOR@@#$(call qstrip,$(CMAKE_SYSTEM_PROCESSOR))#' \
 		-e 's#@@TOOLCHAIN_HAS_FORTRAN@@#$(if $(BR2_TOOLCHAIN_HAS_FORTRAN),1,0)#' \
+		-e 's#@@BR_CMAKE_BUILD_TYPE@@#$(BR_CMAKE_BUILD_TYPE)#' \
 		$(TOPDIR)/support/misc/toolchainfile.cmake.in \
 		> $@
diff --git a/support/misc/toolchainfile.cmake.in b/support/misc/toolchainfile.cmake.in
index 649b52d..2505256 100644
--- a/support/misc/toolchainfile.cmake.in
+++ b/support/misc/toolchainfile.cmake.in
@@ -13,6 +13,9 @@ string(REPLACE "/usr/share/buildroot" "" RELOCATED_HOST_DIR ${CMAKE_CURRENT_LIST
 set(CMAKE_SYSTEM_NAME Linux)
 set(CMAKE_SYSTEM_PROCESSOR @@CMAKE_SYSTEM_PROCESSOR@@)
 
+# Build type from the Buildroot configuration
+set(CMAKE_BUILD_TYPE @@BR_CMAKE_BUILD_TYPE@@ CACHE STRING "Buildroot build configuration")
+
 set(CMAKE_C_FLAGS "@@TARGET_CFLAGS@@ ${CMAKE_C_FLAGS}" CACHE STRING "Buildroot CFLAGS")
 set(CMAKE_CXX_FLAGS "@@TARGET_CXXFLAGS@@ ${CMAKE_CXX_FLAGS}" CACHE STRING "Buildroot CXXFLAGS")
 set(CMAKE_EXE_LINKER_FLAGS "@@TARGET_LDFLAGS@@ ${CMAKE_EXE_LINKER_FLAGS}" CACHE STRING "Buildroot LDFLAGS")
-- 
2.10.0

^ permalink raw reply related	[flat|nested] 12+ messages in thread
* [Buildroot] [PATCH v5 3/9] toolchainfile.cmake: set per-config appended {C, CXX}FLAGS
  2016-10-15 21:03 [Buildroot] [PATCH v5 0/9] Misc. CMake fixes Samuel Martin
  2016-10-15 21:03 ` [Buildroot] [PATCH v5 1/9] package/pkg-cmake.mk: fix build type and optimization flags Samuel Martin
  2016-10-15 21:03 ` [Buildroot] [PATCH v5 2/9] package/pkg-cmake.mk: move CMAKE_BUILD_TYPE definition into toolchainfile.cmake Samuel Martin
@ 2016-10-15 21:03 ` Samuel Martin
  2016-10-15 21:03 ` [Buildroot] [PATCH v5 4/9] package/gflags: include TARGET_CXXFLAGS to the overloaded CXXFLAGS Samuel Martin
                   ` (5 subsequent siblings)
  8 siblings, 0 replies; 12+ messages in thread
From: Samuel Martin @ 2016-10-15 21:03 UTC (permalink / raw)
  To: buildroot

The toolchainfile.cmake file already sets the build type to get close
to the Buildroot configuration.

This change sets the per-config compiler flags CMake appends, so CMake
does not mess up with the compilation flags Buildroot sets.

This change still allows overriding the these variables from the
configure command line.

Note:
  If a CMake-based project forces using a given build type and/or
  force the compiler and/or linker flag definitions (the default ones or
  the per-config ones - e.g. CMAKE_C_FLAGS/CMAKE_C_FLAGS_{DEBUG,RELEASE}),
  there is not much Buildroot can do about it.
  So, the flags will be overwritten anyway in these cases.

Cc: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Cc: Maxime Hadjinlian <maxime.hadjinlian@gmail.com>
Signed-off-by: Samuel Martin <s.martin49@gmail.com>

---
changes v4->v5:
- fix cmake set call

changes v3->v4:
- new patch
---
 support/misc/toolchainfile.cmake.in | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/support/misc/toolchainfile.cmake.in b/support/misc/toolchainfile.cmake.in
index 2505256..75f3fb2 100644
--- a/support/misc/toolchainfile.cmake.in
+++ b/support/misc/toolchainfile.cmake.in
@@ -13,6 +13,18 @@ string(REPLACE "/usr/share/buildroot" "" RELOCATED_HOST_DIR ${CMAKE_CURRENT_LIST
 set(CMAKE_SYSTEM_NAME Linux)
 set(CMAKE_SYSTEM_PROCESSOR @@CMAKE_SYSTEM_PROCESSOR@@)
 
+# Give to CMake the {C,CXX}FLAGS to append in case the project's logic
+# falls back on a build type or another (i.e. set CMAKE_{C,CXX}_FLAGS_*
+# variables).
+#
+# Note:
+#   if the project forces some of these flag variables, Buildroot is
+#   screwed up and there is nothing Buildroot can do about that :(
+set(CMAKE_C_FLAGS_DEBUG "" CACHE STRING "Debug CFLAGS")
+set(CMAKE_CXX_FLAGS_DEBUG "" CACHE STRING "Debug CXXFLAGS")
+set(CMAKE_C_FLAGS_RELEASE " -DNEBUG" CACHE STRING "Release CFLAGS")
+set(CMAKE_CXX_FLAGS_RELEASE " -DNEBUG" CACHE STRING "Release CXXFLAGS")
+
 # Build type from the Buildroot configuration
 set(CMAKE_BUILD_TYPE @@BR_CMAKE_BUILD_TYPE@@ CACHE STRING "Buildroot build configuration")
 
-- 
2.10.0

^ permalink raw reply related	[flat|nested] 12+ messages in thread
* [Buildroot] [PATCH v5 4/9] package/gflags: include TARGET_CXXFLAGS to the overloaded CXXFLAGS
  2016-10-15 21:03 [Buildroot] [PATCH v5 0/9] Misc. CMake fixes Samuel Martin
                   ` (2 preceding siblings ...)
  2016-10-15 21:03 ` [Buildroot] [PATCH v5 3/9] toolchainfile.cmake: set per-config appended {C, CXX}FLAGS Samuel Martin
@ 2016-10-15 21:03 ` Samuel Martin
  2016-10-15 21:03 ` [Buildroot] [PATCH v5 5/9] package/gnuradio: include TARGET_CFLAGS to the overloaded CFLAGS Samuel Martin
                   ` (4 subsequent siblings)
  8 siblings, 0 replies; 12+ messages in thread
From: Samuel Martin @ 2016-10-15 21:03 UTC (permalink / raw)
  To: buildroot

Signed-off-by: Samuel Martin <s.martin49@gmail.com>
Reviewed-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>

---
changes v4->v5:
- none

changes v3->v4:
- fix commit subject
- update A/R/T tags

changes v2->v3:
- new patch
---
 package/gflags/gflags.mk | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/package/gflags/gflags.mk b/package/gflags/gflags.mk
index 9dc4e15..89111ed 100644
--- a/package/gflags/gflags.mk
+++ b/package/gflags/gflags.mk
@@ -11,7 +11,8 @@ GFLAGS_LICENSE = BSD-3c
 GFLAGS_LICENSE_FILES = COPYING.txt
 
 ifeq ($(BR2_TOOLCHAIN_HAS_THREADS),)
-GFLAGS_CONF_OPTS = -DBUILD_gflags_LIB=OFF -DCMAKE_CXX_FLAGS=-DNO_THREADS
+GFLAGS_CONF_OPTS = -DBUILD_gflags_LIB=OFF \
+	-DCMAKE_CXX_FLAGS="$(TARGET_CXXFLAGS) -DNO_THREADS"
 endif
 
 $(eval $(cmake-package))
-- 
2.10.0

^ permalink raw reply related	[flat|nested] 12+ messages in thread
* [Buildroot] [PATCH v5 5/9] package/gnuradio: include TARGET_CFLAGS to the overloaded CFLAGS
  2016-10-15 21:03 [Buildroot] [PATCH v5 0/9] Misc. CMake fixes Samuel Martin
                   ` (3 preceding siblings ...)
  2016-10-15 21:03 ` [Buildroot] [PATCH v5 4/9] package/gflags: include TARGET_CXXFLAGS to the overloaded CXXFLAGS Samuel Martin
@ 2016-10-15 21:03 ` Samuel Martin
  2016-10-15 21:03 ` [Buildroot] [PATCH v5 6/9] package/libcec: include TARGET_{C, CXX}FLAGS to the overloaded {C, CXX}FLAGS Samuel Martin
                   ` (3 subsequent siblings)
  8 siblings, 0 replies; 12+ messages in thread
From: Samuel Martin @ 2016-10-15 21:03 UTC (permalink / raw)
  To: buildroot

Signed-off-by: Samuel Martin <s.martin49@gmail.com>
Reviewed-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>

---
changes v4->v5:
- none

changes v3->v4:
- fix commit subject
- update A/R/T tags

changes v2->v3:
- new patch
---
 package/gnuradio/gnuradio.mk | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package/gnuradio/gnuradio.mk b/package/gnuradio/gnuradio.mk
index 972f7a4..5cb00d2 100644
--- a/package/gnuradio/gnuradio.mk
+++ b/package/gnuradio/gnuradio.mk
@@ -36,7 +36,7 @@ GNURADIO_INSTALL_STAGING = YES
 # CFLAGS to decide whether to build the NEON functions or not, and
 # wants to see the string 'armv7' in the CFLAGS.
 ifeq ($(BR2_ARM_CPU_ARMV7A)$(BR2_ARM_CPU_HAS_NEON),yy)
-GNURADIO_CONF_OPTS += -DCMAKE_C_FLAGS="-march=armv7-a"
+GNURADIO_CONF_OPTS += -DCMAKE_C_FLAGS="$(TARGET_CFLAGS) -march=armv7-a"
 endif
 
 # As soon as -mfpu=neon is supported by the compiler, gnuradio will try
-- 
2.10.0

^ permalink raw reply related	[flat|nested] 12+ messages in thread
* [Buildroot] [PATCH v5 6/9] package/libcec: include TARGET_{C, CXX}FLAGS to the overloaded {C, CXX}FLAGS
  2016-10-15 21:03 [Buildroot] [PATCH v5 0/9] Misc. CMake fixes Samuel Martin
                   ` (4 preceding siblings ...)
  2016-10-15 21:03 ` [Buildroot] [PATCH v5 5/9] package/gnuradio: include TARGET_CFLAGS to the overloaded CFLAGS Samuel Martin
@ 2016-10-15 21:03 ` Samuel Martin
  2016-10-15 21:03 ` [Buildroot] [PATCH v5 7/9] package/opencv3: fix CMAKE_CXX_FLAGS Samuel Martin
                   ` (2 subsequent siblings)
  8 siblings, 0 replies; 12+ messages in thread
From: Samuel Martin @ 2016-10-15 21:03 UTC (permalink / raw)
  To: buildroot

Signed-off-by: Samuel Martin <s.martin49@gmail.com>
Reviewed-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>

---
changes v4->v5:
- none

changes v3->v4:
- fix commit subject
- update A/R/T tags

changes v2->v3:
- new patch
---
 package/libcec/libcec.mk | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/package/libcec/libcec.mk b/package/libcec/libcec.mk
index b762d88..55c5fbb 100644
--- a/package/libcec/libcec.mk
+++ b/package/libcec/libcec.mk
@@ -29,8 +29,9 @@ endif
 ifeq ($(BR2_PACKAGE_RPI_USERLAND),y)
 LIBCEC_DEPENDENCIES += rpi-userland
 LIBCEC_CONF_OPTS += \
-	-DCMAKE_C_FLAGS="-lvcos -lvchiq_arm" \
-	-DCMAKE_CXX_FLAGS="-I$(STAGING_DIR)/usr/include/interface/vmcs_host/linux \
+	-DCMAKE_C_FLAGS="$(TARGET_CFLAGS) -lvcos -lvchiq_arm" \
+	-DCMAKE_CXX_FLAGS="$(TARGET_CXXFLAGS) \
+		-I$(STAGING_DIR)/usr/include/interface/vmcs_host/linux \
 		-I$(STAGING_DIR)/usr/include/interface/vcos/pthreads"
 endif
 
-- 
2.10.0

^ permalink raw reply related	[flat|nested] 12+ messages in thread
* [Buildroot] [PATCH v5 7/9] package/opencv3: fix CMAKE_CXX_FLAGS
  2016-10-15 21:03 [Buildroot] [PATCH v5 0/9] Misc. CMake fixes Samuel Martin
                   ` (5 preceding siblings ...)
  2016-10-15 21:03 ` [Buildroot] [PATCH v5 6/9] package/libcec: include TARGET_{C, CXX}FLAGS to the overloaded {C, CXX}FLAGS Samuel Martin
@ 2016-10-15 21:03 ` Samuel Martin
  2016-10-15 21:03 ` [Buildroot] [PATCH v5 8/9] package/rpi-userland: include TARGET_CFLAGS to the overloaded CFLAGS Samuel Martin
  2016-10-15 21:03 ` [Buildroot] [PATCH v5 9/9] toochainfile.cmake: rework the way Buildroot sets flags Samuel Martin
  8 siblings, 0 replies; 12+ messages in thread
From: Samuel Martin @ 2016-10-15 21:03 UTC (permalink / raw)
  To: buildroot

From: Max Filippov <jcmvbkbc@gmail.com>

The commit 4904c4c "package/opencv3: use BR2_TOOLCHAIN_HAS_LIBATOMIC"
overrides CMAKE_CXX_FLAGS with the single -latomic, losing all ABI
CFLAGS that are passed there by default. This breaks build on xtensa
where ABI CFLAGS contain important code generation options.

Append $(TARGET_CXXFLAGS) to CMAKE_CXX_FLAGS along with -latomic.

Fixes:
  http://autobuild.buildroot.net/results/7f1c96abd8fbb5b358a07100ab623316e9bb9dcd
  http://autobuild.buildroot.net/results/e0c93d0f6d1da0d62d4dbba211a275bfe75e9645
  http://autobuild.buildroot.net/results/53e7e4b4b6a7b48b8012799d7507f7594dbf01b2

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Samuel Martin <s.martin49@gmail.com>
Reviewed-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>

---
changes v4->v5:
- none

changes v3->v4 [Samuel]:
- update A/R/T tags
---
 package/opencv3/opencv3.mk | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package/opencv3/opencv3.mk b/package/opencv3/opencv3.mk
index 2529de9..10660a9 100644
--- a/package/opencv3/opencv3.mk
+++ b/package/opencv3/opencv3.mk
@@ -12,7 +12,7 @@ OPENCV3_LICENSE_FILES = LICENSE
 
 # Uses __atomic_fetch_add_4
 ifeq ($(BR2_TOOLCHAIN_HAS_LIBATOMIC),y)
-OPENCV3_CONF_OPTS += -DCMAKE_CXX_FLAGS="-latomic"
+OPENCV3_CONF_OPTS += -DCMAKE_CXX_FLAGS="$(TARGET_CXXFLAGS) -latomic"
 endif
 
 # OpenCV component options
-- 
2.10.0

^ permalink raw reply related	[flat|nested] 12+ messages in thread
* [Buildroot] [PATCH v5 8/9] package/rpi-userland: include TARGET_CFLAGS to the overloaded CFLAGS
  2016-10-15 21:03 [Buildroot] [PATCH v5 0/9] Misc. CMake fixes Samuel Martin
                   ` (6 preceding siblings ...)
  2016-10-15 21:03 ` [Buildroot] [PATCH v5 7/9] package/opencv3: fix CMAKE_CXX_FLAGS Samuel Martin
@ 2016-10-15 21:03 ` Samuel Martin
  2016-10-15 21:03 ` [Buildroot] [PATCH v5 9/9] toochainfile.cmake: rework the way Buildroot sets flags Samuel Martin
  8 siblings, 0 replies; 12+ messages in thread
From: Samuel Martin @ 2016-10-15 21:03 UTC (permalink / raw)
  To: buildroot

Signed-off-by: Samuel Martin <s.martin49@gmail.com>
Reviewed-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>

---
changes v4->v5:
- none

changes v3->v4:
- fix commit subject
- update A/R/T tags

changes v2->v3:
- new patch
---
 package/rpi-userland/rpi-userland.mk | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/package/rpi-userland/rpi-userland.mk b/package/rpi-userland/rpi-userland.mk
index 86cde87..4a6eb41 100644
--- a/package/rpi-userland/rpi-userland.mk
+++ b/package/rpi-userland/rpi-userland.mk
@@ -10,7 +10,8 @@ RPI_USERLAND_LICENSE = BSD-3c
 RPI_USERLAND_LICENSE_FILES = LICENCE
 RPI_USERLAND_INSTALL_STAGING = YES
 RPI_USERLAND_CONF_OPTS = -DVMCS_INSTALL_PREFIX=/usr \
-	-DCMAKE_C_FLAGS="-DVCFILED_LOCKFILE=\\\"/var/run/vcfiled.pid\\\""
+	-DCMAKE_C_FLAGS="$(TARGET_CFLAGS) \
+		-DVCFILED_LOCKFILE=\\\"/var/run/vcfiled.pid\\\""
 
 RPI_USERLAND_PROVIDES = libegl libgles libopenmax libopenvg
 
-- 
2.10.0

^ permalink raw reply related	[flat|nested] 12+ messages in thread
* [Buildroot] [PATCH v5 9/9] toochainfile.cmake: rework the way Buildroot sets flags
  2016-10-15 21:03 [Buildroot] [PATCH v5 0/9] Misc. CMake fixes Samuel Martin
                   ` (7 preceding siblings ...)
  2016-10-15 21:03 ` [Buildroot] [PATCH v5 8/9] package/rpi-userland: include TARGET_CFLAGS to the overloaded CFLAGS Samuel Martin
@ 2016-10-15 21:03 ` Samuel Martin
  8 siblings, 0 replies; 12+ messages in thread
From: Samuel Martin @ 2016-10-15 21:03 UTC (permalink / raw)
  To: buildroot

From the build configuration, Buildroot defines and set some compiler
and linker flags that should be passed to any packages build-system.

For package using the cmake-package infrastructure, this is achieved
via the toolchainfile.cmake.

This change simplifies the way the toolchainfile.cmake file handles
these flags: it now just sets them, without any attempt to extend them
with those Buildroot defined.

This change still allows overriding these flags from the configure
command line.

So, now, when a CMake-based package needs to extend them, they should
be fully set from the package *.mk file. This behavior is consistent
with what is done for others package infrastructures.

This change should not pull any regression WRT the bug #7280 [1].

However, now, when someone uses the toolchainfile.cmake file outside of
Buildroot, he/she must overload all compiler/linker flags (including the
ones Buildroot sets since they no longer get automatically added).

[1] https://bugs.busybox.net/show_bug.cgi?id=7280

Cc: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Samuel Martin <s.martin49@gmail.com>

---
changes v4->v5:
- fix cmake set call

changes v3->v4:
- add a note about what the CMake code should look like (Arnout)
- fix overriding support (add missing CACHE keyword)
- update CHANGES text
---
 CHANGES                             |  5 ++++-
 support/misc/toolchainfile.cmake.in | 17 +++++++++++++----
 2 files changed, 17 insertions(+), 5 deletions(-)

diff --git a/CHANGES b/CHANGES
index c0e3e79..3657710 100644
--- a/CHANGES
+++ b/CHANGES
@@ -2,7 +2,10 @@
 
     toolchainfile.cmake:
     * when used outside of Buildroot, if not specified on the command
-      line, the CMAKE_BUILD_TYPE is by toolchainfile.cmake.
+      line, the CMAKE_BUILD_TYPE is by toolchainfile.cmake;
+    * when used outside of Buildroot with custom compiler/linker
+      flags, the Buildroot flags should be set along side with the
+      custom ones.
 
 2016.08, Released September 1st, 2016
 
diff --git a/support/misc/toolchainfile.cmake.in b/support/misc/toolchainfile.cmake.in
index 75f3fb2..3e1a056 100644
--- a/support/misc/toolchainfile.cmake.in
+++ b/support/misc/toolchainfile.cmake.in
@@ -28,9 +28,17 @@ set(CMAKE_CXX_FLAGS_RELEASE " -DNEBUG" CACHE STRING "Release CXXFLAGS")
 # Build type from the Buildroot configuration
 set(CMAKE_BUILD_TYPE @@BR_CMAKE_BUILD_TYPE@@ CACHE STRING "Buildroot build configuration")
 
-set(CMAKE_C_FLAGS "@@TARGET_CFLAGS@@ ${CMAKE_C_FLAGS}" CACHE STRING "Buildroot CFLAGS")
-set(CMAKE_CXX_FLAGS "@@TARGET_CXXFLAGS@@ ${CMAKE_CXX_FLAGS}" CACHE STRING "Buildroot CXXFLAGS")
-set(CMAKE_EXE_LINKER_FLAGS "@@TARGET_LDFLAGS@@ ${CMAKE_EXE_LINKER_FLAGS}" CACHE STRING "Buildroot LDFLAGS")
+# Buildroot defaults flags.
+# If you are using this toolchainfile.cmake file outside of Buildroot and
+# want to customize the compiler/linker flags, then:
+# * set them all on the cmake command line, e.g.:
+#     cmake -DCMAKE_C_FLAGS="@@TARGET_CFLAGS@@ -Dsome_custom_flag" ...
+# * and make sure the project's CMake code extendsthem like this if needed:
+#     set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Dsome_definitions")
+set(CMAKE_C_FLAGS "@@TARGET_CFLAGS@@" CACHE STRING "Buildroot CFLAGS")
+set(CMAKE_CXX_FLAGS "@@TARGET_CXXFLAGS@@" CACHE STRING "Buildroot CXXFLAGS")
+set(CMAKE_EXE_LINKER_FLAGS "@@TARGET_LDFLAGS@@" CACHE STRING "Buildroot LDFLAGS for executables")
+
 set(CMAKE_INSTALL_SO_NO_EXE 0)
 
 set(CMAKE_PROGRAM_PATH "${RELOCATED_HOST_DIR}/usr/bin")
@@ -46,6 +54,7 @@ set(ENV{PKG_CONFIG_SYSROOT_DIR} "${RELOCATED_HOST_DIR}/@@STAGING_SUBDIR@@")
 set(CMAKE_C_COMPILER "${RELOCATED_HOST_DIR}/@@TARGET_CC@@")
 set(CMAKE_CXX_COMPILER "${RELOCATED_HOST_DIR}/@@TARGET_CXX@@")
 if(@@TOOLCHAIN_HAS_FORTRAN@@)
-  set(CMAKE_Fortran_FLAGS "@@TARGET_FCFLAGS@@ ${CMAKE_Fortran_FLAGS}" CACHE STRING "Buildroot FCFLAGS")
+  # Buildroot defaults flags.
+  set(CMAKE_Fortran_FLAGS "@@TARGET_FCFLAGS@@" CACHE STRING "Buildroot FCFLAGS")
   set(CMAKE_Fortran_COMPILER "${RELOCATED_HOST_DIR}/@@TARGET_FC@@")
 endif()
-- 
2.10.0

^ permalink raw reply related	[flat|nested] 12+ messages in thread
* [Buildroot] [PATCH v5 1/9] package/pkg-cmake.mk: fix build type and optimization flags
  2016-10-15 21:03 ` [Buildroot] [PATCH v5 1/9] package/pkg-cmake.mk: fix build type and optimization flags Samuel Martin
@ 2016-10-15 22:14   ` Arnout Vandecappelle
  0 siblings, 0 replies; 12+ messages in thread
From: Arnout Vandecappelle @ 2016-10-15 22:14 UTC (permalink / raw)
  To: buildroot

Subject is wrong: no optimization flags are fixed.

On 15-10-16 23:03, Samuel Martin wrote:
> tl;dr:
> 
> Before applying this patch, CMake packages are built with the following
> options:
>   * if BR2_ENABLE_DEBUG is set:
>     The CMake build type is set to RelWithDebInfo, which means:
>     - Optimization level is forced to: -O2;
>     - no log nor assert due to -DNDEBUG;
>     - BR2_DEBUG_{1..3} effect is unchanged;
>   * otherwise:
>     The CMake build type is set to Release, which means:
>     - Optimization level is forced to: -O3;
>     - no log nor assert due to -DNDEBUG (as expected).
>   In any case, the optimization WRT the binary size is always ignored and
>   forced.
> 
> This change chooses the build type doing the closest thing to what
> Buildroot attempts to do.
> 
> Long version:
> 
> Flags set by Buildroot depending on the configuration:
> 
>   BR2_ENABLE_DEBUG | Optim. level   | Buildroot {C,CXX}FLAGS
>   =================+================+=======================
>           y        | BR2_OPTIMIZE_S | -Os -gx
>           y        | BR2_OPTIMIZE_G | -Og -gx
>           y        | BR2_OPTIMIZE_n | -On -gx
>           n        | BR2_OPTIMIZE_S | -Os
>           n        | BR2_OPTIMIZE_G | -Og
>           n        | BR2_OPTIMIZE_n | -On
> 
> Default flags appended by CMake depending on the build type:
> 
>   Build type     | Flags           | Effects on {C,CXX}FLAGS
>   ===============+=================+===========================================
>   Debug          | -g              | Force -g, compatible with BR2_ENABLE_DEBUG
>   MinSizeRel     | -Os -DNDEBUG    | Set -Os, compatible with BR2_OPTIMIZE_S
>   Release        | -O3 -DNDEBUG    | Set -O3, closest to the others cases,
>                  |                 | though the optimization level is forced.
>   RelWithDebInfo | -O2 -g -DNDEBUG | Force -g and set -O2, not friendly with BR
> 
> Since CMake appends its own build type flags and because of the gcc
> option parser, the CMake flags takes precedence over the Buildroot
> flags.
> 
> So, this change sets the build type in a very simple way depending on
> the BR2_ENABLE_DEBUG symbol.
> 
> Follow-up patches will fix the CMake flag variables that are appended by
> CMake.

 Most of this explanation fits better in patch 3, because here we're not yet
fixing anything.

 Also, this patch is now basically reverting
4b0120183404913f7f7788ef4f0f6b51498ef363, so that should be mentioned.

 How about:

package/pkg-cmake.mk: use Debug or Release build types

Before applying this patch, CMake packages are built with the following
options:
  * if BR2_ENABLE_DEBUG is set:
    The CMake build type is set to RelWithDebInfo, which means:
    - Optimization level is forced to: -O2;
    - no log nor assert due to -DNDEBUG;
    - BR2_DEBUG_{1..3} effect is unchanged;
  * otherwise:
    The CMake build type is set to Release, which means:
    - Optimization level is forced to: -O3;
    - no log nor assert due to -DNDEBUG (as expected).
  In any case, the optimization WRT the binary size is always ignored and
  forced.

In particular, the -DNDEBUG added by RelWithDebInfo is wrong because it removes
assertions and logging, which is exactly what we do want in BR2_ENABLE_DEBUG.

Follow-up patches will fix the CMake flag variables that are appended by CMake.
But then, the 'Debug' and 'Release' config types make more semantical sense than
'RelWithDebInfo' and 'Release'. So revert commit 4b012018 which introduced
RelWithDebInfo.


> 
> Cc: Charles Hardin <ckhardin@exablox.com>
> Cc: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
> Signed-off-by: Samuel Martin <s.martin49@gmail.com>
> Signed-off-by: Maxime Hadjinlian <maxime.hadjinlian@gmail.com>
> 
> ---
> changes v4->v5:
> - none
> 
> changes v3->v4:
> - simplify build type selection
> ---
>  package/pkg-cmake.mk | 10 +++++++++-
>  1 file changed, 9 insertions(+), 1 deletion(-)
> 
> diff --git a/package/pkg-cmake.mk b/package/pkg-cmake.mk
> index aca9e61..259865d 100644
> --- a/package/pkg-cmake.mk
> +++ b/package/pkg-cmake.mk
> @@ -35,6 +35,14 @@ ifneq ($(QUIET),)
>  CMAKE_QUIET = -DCMAKE_RULE_MESSAGES=OFF -DCMAKE_INSTALL_MESSAGE=NEVER
>  endif
>  
> +# Set the CMake build type which matches the best the build configuration sets
> +# in Buildroot.

 This explanation is now not needed anymore: it's quite obvious that debug
corresponds to debug...

> +ifeq ($(BR2_ENABLE_DEBUG),y)
> +BR_CMAKE_BUILD_TYPE=Debug
> +else
> +BR_CMAKE_BUILD_TYPE=Release
> +endif

 This is now so simple that the original in-line definition is good enough.

 In other words, I would do an exact revert of commit 4b012018 instead of
introducing a new symbol that is used only once (after patch 2 it is still used
only once).

 Regards,
 Arnout

> +
>  ################################################################################
>  # inner-cmake-package -- defines how the configuration, compilation and
>  # installation of a CMake package should be done, implements a few hooks to
> @@ -87,7 +95,7 @@ define $(2)_CONFIGURE_CMDS
>  	PATH=$$(BR_PATH) \
>  	$$($$(PKG)_CONF_ENV) $$(BR2_CMAKE) $$($$(PKG)_SRCDIR) \
>  		-DCMAKE_TOOLCHAIN_FILE="$$(HOST_DIR)/usr/share/buildroot/toolchainfile.cmake" \
> -		-DCMAKE_BUILD_TYPE=$$(if $$(BR2_ENABLE_DEBUG),RelWithDebInfo,Release) \
> +		-DCMAKE_BUILD_TYPE=$(BR_CMAKE_BUILD_TYPE) \
>  		-DCMAKE_INSTALL_PREFIX="/usr" \
>  		-DCMAKE_COLOR_MAKEFILE=OFF \
>  		-DBUILD_DOC=OFF \
> 

-- 
Arnout Vandecappelle                          arnout at mind be
Senior Embedded Software Architect            +32-16-286500
Essensium/Mind                                http://www.mind.be
G.Geenslaan 9, 3001 Leuven, Belgium           BE 872 984 063 RPR Leuven
LinkedIn profile: http://www.linkedin.com/in/arnoutvandecappelle
GPG fingerprint:  7493 020B C7E3 8618 8DEC 222C 82EB F404 F9AC 0DDF

^ permalink raw reply	[flat|nested] 12+ messages in thread
* [Buildroot] [PATCH v5 2/9] package/pkg-cmake.mk: move CMAKE_BUILD_TYPE definition into toolchainfile.cmake
  2016-10-15 21:03 ` [Buildroot] [PATCH v5 2/9] package/pkg-cmake.mk: move CMAKE_BUILD_TYPE definition into toolchainfile.cmake Samuel Martin
@ 2016-10-15 22:42   ` Arnout Vandecappelle
  0 siblings, 0 replies; 12+ messages in thread
From: Arnout Vandecappelle @ 2016-10-15 22:42 UTC (permalink / raw)
  To: buildroot



On 15-10-16 23:03, Samuel Martin wrote:
> This change still allows overriding the build type from the configure
> command line.

 Maybe explain why we want this:

The chosen CMAKE_BUILD_TYPE encodes an option of the Buildroot configuration, so
it makes more sense to save it in the toolchainfile.cmake than to pass it during
configure.

It is still possible to override the build type on the cmake command line.

> 
> Cc: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
> Cc: Maxime Hadjinlian <maxime.hadjinlian@gmail.com>
> Signed-off-by: Samuel Martin <s.martin49@gmail.com>
> 
> ---
> changes v4->v5:
> - fix cmake set call
> 
> changes v3->v4:
> - new patch
> ---
>  CHANGES                             | 6 ++++++
>  package/pkg-cmake.mk                | 2 +-
>  support/misc/toolchainfile.cmake.in | 3 +++
>  3 files changed, 10 insertions(+), 1 deletion(-)
> 
> diff --git a/CHANGES b/CHANGES
> index b4bd5fe..c0e3e79 100644
> --- a/CHANGES
> +++ b/CHANGES
> @@ -1,3 +1,9 @@
> +2016.11-rc1,
> +
> +    toolchainfile.cmake:
> +    * when used outside of Buildroot, if not specified on the command
> +      line, the CMAKE_BUILD_TYPE is by toolchainfile.cmake.

 I'm not sure if this is something important enough to mention in the CHANGES.
If it is (up to Peter to decide when commit I'd say), the maybe rephrase as

   * when used outside of Buildroot, the toolchainfile.cmake will set the
     CMAKE_BUILD_TYPE to Debug or Release, according to the configuration.
     It is still possible to override this by adding -DCMAKE_BUILD_TYPE=...
     on the cmake command line.

> +
>  2016.08, Released September 1st, 2016
>  
>  	Minor fixes.
> diff --git a/package/pkg-cmake.mk b/package/pkg-cmake.mk
> index 259865d..5725ed6 100644
> --- a/package/pkg-cmake.mk
> +++ b/package/pkg-cmake.mk
> @@ -95,7 +95,6 @@ define $(2)_CONFIGURE_CMDS
>  	PATH=$$(BR_PATH) \
>  	$$($$(PKG)_CONF_ENV) $$(BR2_CMAKE) $$($$(PKG)_SRCDIR) \
>  		-DCMAKE_TOOLCHAIN_FILE="$$(HOST_DIR)/usr/share/buildroot/toolchainfile.cmake" \
> -		-DCMAKE_BUILD_TYPE=$(BR_CMAKE_BUILD_TYPE) \
>  		-DCMAKE_INSTALL_PREFIX="/usr" \
>  		-DCMAKE_COLOR_MAKEFILE=OFF \
>  		-DBUILD_DOC=OFF \
> @@ -255,5 +254,6 @@ $(HOST_DIR)/usr/share/buildroot/toolchainfile.cmake:
>  		-e 's#@@TARGET_FC@@#$(subst $(HOST_DIR)/,,$(call qstrip,$(TARGET_FC)))#' \
>  		-e 's#@@CMAKE_SYSTEM_PROCESSOR@@#$(call qstrip,$(CMAKE_SYSTEM_PROCESSOR))#' \
>  		-e 's#@@TOOLCHAIN_HAS_FORTRAN@@#$(if $(BR2_TOOLCHAIN_HAS_FORTRAN),1,0)#' \
> +		-e 's#@@BR_CMAKE_BUILD_TYPE@@#$(BR_CMAKE_BUILD_TYPE)#' \

 So I'd still keep the $(if $(BR2_ENABLE_DEBUG),Debug,Release) form here.

 Regards,
 Arnout

>  		$(TOPDIR)/support/misc/toolchainfile.cmake.in \
>  		> $@
> diff --git a/support/misc/toolchainfile.cmake.in b/support/misc/toolchainfile.cmake.in
> index 649b52d..2505256 100644
> --- a/support/misc/toolchainfile.cmake.in
> +++ b/support/misc/toolchainfile.cmake.in
> @@ -13,6 +13,9 @@ string(REPLACE "/usr/share/buildroot" "" RELOCATED_HOST_DIR ${CMAKE_CURRENT_LIST
>  set(CMAKE_SYSTEM_NAME Linux)
>  set(CMAKE_SYSTEM_PROCESSOR @@CMAKE_SYSTEM_PROCESSOR@@)
>  
> +# Build type from the Buildroot configuration
> +set(CMAKE_BUILD_TYPE @@BR_CMAKE_BUILD_TYPE@@ CACHE STRING "Buildroot build configuration")
> +
>  set(CMAKE_C_FLAGS "@@TARGET_CFLAGS@@ ${CMAKE_C_FLAGS}" CACHE STRING "Buildroot CFLAGS")
>  set(CMAKE_CXX_FLAGS "@@TARGET_CXXFLAGS@@ ${CMAKE_CXX_FLAGS}" CACHE STRING "Buildroot CXXFLAGS")
>  set(CMAKE_EXE_LINKER_FLAGS "@@TARGET_LDFLAGS@@ ${CMAKE_EXE_LINKER_FLAGS}" CACHE STRING "Buildroot LDFLAGS")
> 

-- 
Arnout Vandecappelle                          arnout at mind be
Senior Embedded Software Architect            +32-16-286500
Essensium/Mind                                http://www.mind.be
G.Geenslaan 9, 3001 Leuven, Belgium           BE 872 984 063 RPR Leuven
LinkedIn profile: http://www.linkedin.com/in/arnoutvandecappelle
GPG fingerprint:  7493 020B C7E3 8618 8DEC 222C 82EB F404 F9AC 0DDF

^ permalink raw reply	[flat|nested] 12+ messages in thread
end of thread, other threads:[~2016-10-15 22:42 UTC | newest]

Thread overview: 12+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2016-10-15 21:03 [Buildroot] [PATCH v5 0/9] Misc. CMake fixes Samuel Martin
2016-10-15 21:03 ` [Buildroot] [PATCH v5 1/9] package/pkg-cmake.mk: fix build type and optimization flags Samuel Martin
2016-10-15 22:14   ` Arnout Vandecappelle
2016-10-15 21:03 ` [Buildroot] [PATCH v5 2/9] package/pkg-cmake.mk: move CMAKE_BUILD_TYPE definition into toolchainfile.cmake Samuel Martin
2016-10-15 22:42   ` Arnout Vandecappelle
2016-10-15 21:03 ` [Buildroot] [PATCH v5 3/9] toolchainfile.cmake: set per-config appended {C, CXX}FLAGS Samuel Martin
2016-10-15 21:03 ` [Buildroot] [PATCH v5 4/9] package/gflags: include TARGET_CXXFLAGS to the overloaded CXXFLAGS Samuel Martin
2016-10-15 21:03 ` [Buildroot] [PATCH v5 5/9] package/gnuradio: include TARGET_CFLAGS to the overloaded CFLAGS Samuel Martin
2016-10-15 21:03 ` [Buildroot] [PATCH v5 6/9] package/libcec: include TARGET_{C, CXX}FLAGS to the overloaded {C, CXX}FLAGS Samuel Martin
2016-10-15 21:03 ` [Buildroot] [PATCH v5 7/9] package/opencv3: fix CMAKE_CXX_FLAGS Samuel Martin
2016-10-15 21:03 ` [Buildroot] [PATCH v5 8/9] package/rpi-userland: include TARGET_CFLAGS to the overloaded CFLAGS Samuel Martin
2016-10-15 21:03 ` [Buildroot] [PATCH v5 9/9] toochainfile.cmake: rework the way Buildroot sets flags Samuel Martin

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