Scientific libraries

When building Qt in a minimal configuration, a couple of Qt modules (QtNetwork, QtSql, QtTest and QtXml) are built in addition to QtCore, so they are installed in the sysroot but they are not copied into the target tree.

Among these modules that could be built but optionally installed, only QtTest had no option to allow being installed in the target fs.

Thus, programs linking against QtTest would successfully build, but would miserably fail at runtime due to this missing dependency.

So far, the only package triggering this issue is OpenCV (the highgui module built with Qt support).

A followup patch will add this missing dependency in OpenCV using this new option.

Signed-off-by Samuel Martin <[email protected]>

---
changes v1 -> v2:
- rebase
- change default value to n

---
 package/qt/Config.in | 5 +++++
 package/qt/qt.mk     | 3 +++
 2 files changed, 8 insertions(+)

package/qt/Config.in +5 -0

index eed25c8..9faf2cd 100644
@@ -415,4 +415,9 @@ config BR2_PACKAGE_QT_DECLARATIVE
 	  Build the Qt Declarative Module for qml support
 	  if unsure, say n.
 
+config BR2_PACKAGE_QT_TEST
+	bool "Test Module"
+	help
+	  Install the Test module.
+
 endif # BR2_PACKAGE_QT

package/qt/qt.mk +3 -0

index 507e0db..bb065f3 100644
@@ -586,6 +586,9 @@ endif
 ifeq ($(BR2_PACKAGE_QT_GFX_POWERVR),y)
 QT_INSTALL_LIBS    += pvrQWSWSEGL
 endif
+ifeq ($(BR2_PACKAGE_QT_TEST),y)
+QT_INSTALL_LIBS    += QtTest
+endif
 
 QT_CONF_FILE=$(HOST_DIR)/usr/bin/qt.conf
 

Signature · 6 lines

1.9.2

_______________________________________________
buildroot mailing list
buildroot at busybox.net
http://lists.busybox.net/mailman/listinfo/buildroot

Quoted 1 line

Quoted 1 line

Quoted 1 line

Quoted 1 line

"Samuel" == Samuel Martin <[email protected]> writes:

When building Qt in a minimal configuration, a couple of Qt modules (QtNetwork, QtSql, QtTest and QtXml) are built in addition to QtCore, so they are installed in the sysroot but they are not copied into the target tree.

Among these modules that could be built but optionally installed, only QtTest had no option to allow being installed in the target fs.

Thus, programs linking against QtTest would successfully build, but would miserably fail at runtime due to this missing dependency.

So far, the only package triggering this issue is OpenCV (the highgui module built with Qt support).

A followup patch will add this missing dependency in OpenCV using this new option.

Signed-off-by Samuel Martin <[email protected]>

The OpenCV highgui module links against QtGui and QtTest. The latter is built by default but was never installed. Thanks to the previous patch on Qt, this can be rectified.

So, update the OpenCV Config.in with the missing Qt module selection.

Signed-off-by Samuel Martin <[email protected]>

---
changes v1 -> v2:
- rebase

---
 package/opencv/Config.in | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

package/opencv/Config.in +3 -1

index b40e141..49ada5d 100644
@@ -173,9 +173,11 @@ config BR2_PACKAGE_OPENCV_WITH_QT
 	depends on BR2_USE_MMU # qt
 	select BR2_PACKAGE_QT
 	select BR2_PACKAGE_QT_STL
+	select BR2_PACKAGE_QT_GUI_MODULE if BR2_PACKAGE_OPENCV_LIB_HIGHGUI
+	select BR2_PACKAGE_QT_TEST       if BR2_PACKAGE_OPENCV_LIB_HIGHGUI
 	default y
 	help
-	  Use Qt with STL support
+	  Use Qt with QtTest module and STL support
 
 config BR2_PACKAGE_OPENCV_WITH_TIFF
 	bool "tiff support"

Signature · 6 lines

1.9.2

_______________________________________________
buildroot mailing list
buildroot at busybox.net
http://lists.busybox.net/mailman/listinfo/buildroot

Quoted 1 line

Quoted 1 line

Quoted 1 line

Quoted 1 line

"Samuel" == Samuel Martin <[email protected]> writes:

The OpenCV highgui module links against QtGui and QtTest. The latter is built by default but was never installed. Thanks to the previous patch on Qt, this can be rectified.

So, update the OpenCV Config.in with the missing Qt module selection.

Signed-off-by Samuel Martin <[email protected]>

Armadillo is a C++ linear algebra library.

Signed-off-by Samuel Martin <[email protected]>

package/armadillo/armadillo.mk new file +0 -0

new file mode 100644
index 0000000..b2cfdfc

Samuel, All,

On 2014-04-23 01:15 +0200, Samuel Martin spake thusly:

Quoted 3 lines

Armadillo is a C++ linear algebra library.

Signed-off-by Samuel Martin <[email protected]>

This should come _after_ you add the clapack package, since it is a dependency of armadillo.

Some other comments below...

[--SNIP--]

Quoted 7 lines

package/Config.in +0 -0

index 07fd166..4475b07 100644
@@ -766,6 +766,7 @@ source "package/zyre/Config.in"
 endmenu
 

package/Config.in source "package/zyre/Config.in" · line 772

Quoted 5 lines

package/Config.in +1 -0

 menu "Other"
+source "package/armadillo/Config.in"
 source "package/apr/Config.in"
 source "package/apr-util/Config.in"
 source "package/argp-standalone/Config.in"

Alphabetical order, please.

[--SNIP--]

Quoted 9 lines

package/armadillo/armadillo.mk new file +3 -0

new file mode 100644
index 0000000..b2cfdfc
@@ -0,0 +1,15 @@
+################################################################################
+#
+# armadillo

package/armadillo/armadillo.mk line 8

Quoted 5 lines

package/armadillo/armadillo.mk new file +5 -0

+#
+################################################################################
+
+ARMADILLO_VERSION_MAJOR = 4.000
+ARMADILLO_VERSION = $(ARMADILLO_VERSION_MAJOR).4

There's now 4.300 availble. If 4.000 is a requirement, there's now 4.000.5.

With the patch re-ordering, plus the alphabetical sort, you can add my reviewed tag (not added here, so patchwork does not catch it.)

Regards,
Yann E. MORIN.

--
.-----------------.--------------------.------------------.--------------------.

|  Yann E. MORIN  | Real-Time Embedded | /"\ ASCII RIBBON | Erics' conspiracy: |
| +33 662 376 056 | Software  Designer | \ / CAMPAIGN     |  ___               |
| +33 223 225 172 `------------.-------:  X  AGAINST      |  \e/  There is no  |
| http://ymorin.is-a-geek.org/ | _/*\_ | / \ HTML MAIL    |   v   conspiracy.  |

'------------------------------^-------^------------------^--------------------'

Quoted 1 line

Quoted 1 line

Quoted 1 line

Quoted 1 line

"Samuel" == Samuel Martin <[email protected]> writes:

Armadillo is a C++ linear algebra library.

Signed-off-by Samuel Martin <[email protected]>

---
changes v1 -> v2:
- rebase
- add comment when toolchain has not C++

---
 package/Config.in              |  1 +
 package/armadillo/Config.in    | 12 ++++++++++++
 package/armadillo/armadillo.mk | 15 +++++++++++++++
 3 files changed, 28 insertions(+)
 create mode 100644 package/armadillo/Config.in
 create mode 100644 package/armadillo/armadillo.mk

package/Config.in +1 -0

index 07fd166..4475b07 100644
@@ -766,6 +766,7 @@ source "package/zyre/Config.in"
 endmenu
 
 menu "Other"
+source "package/armadillo/Config.in"
 source "package/apr/Config.in"
 source "package/apr-util/Config.in"
 source "package/argp-standalone/Config.in"

package/armadillo/Config.in new file +0 -0

new file mode 100644
index 0000000..8d7e9f3

This package provides BLAS and LAPACK libraries.

Though it is common to find implementation of these two libraries in Fortran, this package provides a C-implementation for both, because:
- Fortran support has been deprecated in Buildroot since the 2013.11 release;
- most of the external toolchains do not provide a Fortran compiler.

Often BLAS build-systems build some test programs and run them to generate some source files or adjust some build optimizations, naively assuming they are building the library for the build-machine. This does not play well when cross-compiling.

This implementation has this defect too, by building and running a tool generating a header.
However, the build-system allows to pass an empty header. So, we have to patch the CMake to build the generator (but never install it) and correctly support building with and without this header provided by the user.

Also, few CMake patches are needed to fix the build and install rules.

Signed-off-by Samuel Martin <[email protected]>

---
changes v1 -> v2:
- rebase
- fix typos (Yann)

---
 package/Config.in                                  |  1 +
 package/clapack/Config.in                          | 18 +++++
 ...ce-libf2c-to-be-built-as-a-static-library.patch | 32 +++++++++
 ...ake-test-build-sensitive-to-BUILD_TESTING.patch | 80 ++++++++++++++++++++++
 ...t-try-to-run-arithchk-when-cross-compilin.patch | 70 +++++++++++++++++++
 ...blas-add-library-and-header-install-rules.patch | 23 +++++++
 ...pack-add-library-and-header-install-rules.patch | 24 +++++++
 package/clapack/clapack.mk                         | 23 +++++++
 8 files changed, 271 insertions(+)
 create mode 100644 package/clapack/Config.in
 create mode 100644 package/clapack/clapack-0001-cmake-force-libf2c-to-be-built-as-a-static-library.patch
 create mode 100644 package/clapack/clapack-0002-cmake-make-test-build-sensitive-to-BUILD_TESTING.patch
 create mode 100644 package/clapack/clapack-0003-cmake-do-not-try-to-run-arithchk-when-cross-compilin.patch
 create mode 100644 package/clapack/clapack-0004-cmake-blas-add-library-and-header-install-rules.patch
 create mode 100644 package/clapack/clapack-0005-cmake-lapack-add-library-and-header-install-rules.patch
 create mode 100644 package/clapack/clapack.mk

package/Config.in +1 -0

index 4475b07..9c91844 100644
@@ -771,6 +771,7 @@ source "package/apr/Config.in"
 source "package/apr-util/Config.in"
 source "package/argp-standalone/Config.in"
 source "package/boost/Config.in"
+source "package/clapack/Config.in"
 source "package/classpath/Config.in"
 source "package/cppcms/Config.in"
 source "package/eigen/Config.in"

package/clapack/Config.in new file +18 -0

new file mode 100644
index 0000000..a4121ae
@@ -0,0 +1,18 @@
+config BR2_PACKAGE_CLAPACK
+	bool "cblas/clapack"
+	help
+	  BLAS and LAPACK C implementation (f2c'ed version of).
+
+	  http://www.netlib.org/clapack/
+
+config BR2_PACKAGE_CLAPACK_ARITH_H
+	string "Custom BLAS arith.h"
+	depends on BR2_PACKAGE_CLAPACK
+	help
+	  To optimize BLAS library for the hardware, an 'arith.h' header should
+	  be provided.
+
+	  If empty, the library will not be optimized by the compiler.
+
+	  In any case an 'arithchk' program is built (but not installed), to be run
+	  on the target to generate this arith.h header.

package/clapack/clapack-0001-cmake-force-libf2c-to-be-built-as-a-static-library.patch new file +32 -0

new file mode 100644
index 0000000..8fede9d
@@ -0,0 +1,32 @@
+From 4fe2f454e454d9e6b1e83b2ea67581990461ed36 Mon Sep 17 00:00:00 2001
+From: Samuel Martin <[email protected]>
+Date: Sat, 11 Jan 2014 22:05:25 +0100
+Subject: [PATCH 1/6] cmake: force libf2c to be built as a static library
+
+As stated in INSTALL/LAPACK_version.c, liblapack requires to be linked
+against the static library of libf2c.
+
+Signed-off-by: Samuel Martin <[email protected]>
+---
+ F2CLIBS/libf2c/CMakeLists.txt | 7 ++++++-
+ 1 file changed, 6 insertions(+), 1 deletion(-)
+
+diff --git a/F2CLIBS/libf2c/CMakeLists.txt b/F2CLIBS/libf2c/CMakeLists.txt
+index 43d7b3f..f98d66a 100644
+--- a/F2CLIBS/libf2c/CMakeLists.txt
++++ b/F2CLIBS/libf2c/CMakeLists.txt
+@@ -58,5 +58,10 @@ if(WIN32)
+ endif()
+ include_directories(${CLAPACK_SOURCE_DIR}/F2CLIBS/libf2c)
+ include_directories(${CLAPACK_BINARY_DIR}/F2CLIBS/libf2c)
+-add_library(f2c ${OFILES} ${CMAKE_CURRENT_BINARY_DIR}/arith.h)
++add_library(f2c STATIC ${OFILES} ${CMAKE_CURRENT_BINARY_DIR}/arith.h)
+ set_property(TARGET f2c PROPERTY PREFIX lib)
++# Set fPIC on the library when build shared libraries is enabled, because
++# libf2c.a will most likely be included by some shared libraries in such cases.
++if(UNIX AND BUILD_SHARED_LIBS)
++  set_target_properties(f2c PROPERTIES COMPILE_FLAGS "-fPIC")
++endif()
+-- 
+1.8.5.3
+

package/clapack/clapack-0002-cmake-make-test-build-sensitive-to-BUILD_TESTING.patch new file +80 -0

new file mode 100644
index 0000000..d56464c
@@ -0,0 +1,80 @@
+From 834c221936d9c460b44e3a65b6fedfb3193f491b Mon Sep 17 00:00:00 2001
+From: Samuel Martin <[email protected]>
+Date: Sat, 11 Jan 2014 21:33:12 +0100
+Subject: [PATCH 2/6] cmake: make test build sensitive to BUILD_TESTING
+
+This patch prevent from wasting time building the tests if it's our
+wish.
+
+The test build takes a significant amount of time, and the binaries
+not installed.
+
+Signed-off-by: Samuel Martin <[email protected]>
+---
+ BLAS/TESTING/CMakeLists.txt | 3 +++
+ CMakeLists.txt              | 9 ++++++---
+ TESTING/CMakeLists.txt      | 4 ++++
+ 3 files changed, 13 insertions(+), 3 deletions(-)
+
+diff --git a/BLAS/TESTING/CMakeLists.txt b/BLAS/TESTING/CMakeLists.txt
+index ec2c587..e7dc0b7 100644
+--- a/BLAS/TESTING/CMakeLists.txt
++++ b/BLAS/TESTING/CMakeLists.txt
+@@ -25,6 +25,9 @@
+ #       make single FRC=FRC
+ #
+ #######################################################################
++if(NOT BUILD_TESTING)
++  return()
++endif()
+ 
+ macro(add_blas_test name src)
+   get_filename_component(baseNAME ${src} NAME_WE)
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 320ccc6..0a362c0 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -1,6 +1,5 @@
+ cmake_minimum_required(VERSION 2.6)
+ project(CLAPACK C)
+-enable_testing()
+ include(CTest)
+ 
+ if(WIN32 AND NOT CYGWIN)
+@@ -11,7 +10,9 @@ else()
+   set(SECOND_SRC  ${CLAPACK_SOURCE_DIR}/INSTALL/second.c)
+   set(DSECOND_SRC  ${CLAPACK_SOURCE_DIR}/INSTALL/dsecnd.c)
+ endif()
+-enable_testing()
++if(NOT BUILD_TESTING)
++  enable_testing()
++endif()
+ option(USE_BLAS_WRAP "pre-pend f2c_ to each function in blas" OFF)
+ if(NOT USE_BLAS_WRAP)
+ # _zrotg_ seems to be missing in the wrap header
+@@ -21,7 +22,9 @@ include_directories(${CLAPACK_SOURCE_DIR}/INCLUDE)
+ add_subdirectory(F2CLIBS)
+ add_subdirectory(BLAS)
+ add_subdirectory(SRC)
+-add_subdirectory(TESTING)
++if(NOT BUILD_TESTING)
++  add_subdirectory(TESTING)
++endif()
+ set(CLAPACK_VERSION 3.2.1)
+ set(CPACK_PACKAGE_VERSION_MAJOR 3)
+ set(CPACK_PACKAGE_VERSION_MINOR 2)
+diff --git a/TESTING/CMakeLists.txt b/TESTING/CMakeLists.txt
+index d59359d..f6b083a 100644
+--- a/TESTING/CMakeLists.txt
++++ b/TESTING/CMakeLists.txt
+@@ -1,3 +1,7 @@
++if(NOT BUILD_TESTING)
++  return()
++endif()
++
+ if(MSVC_VERSION)
+ #  string(REPLACE "/STACK:10000000" "/STACK:900000000000000000"
+ #    CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS}")
+-- 
+1.8.5.3
+

package/clapack/clapack-0003-cmake-do-not-try-to-run-arithchk-when-cross-compilin.patch new file +70 -0

new file mode 100644
index 0000000..1654c89
@@ -0,0 +1,70 @@
+From a2f0669fac1f8e7183b15cf7d14f0e99a2d8b012 Mon Sep 17 00:00:00 2001
+From: Samuel Martin <[email protected]>
+Date: Sat, 11 Jan 2014 21:47:39 +0100
+Subject: [PATCH 3/6] cmake: do not try to run arithchk when cross-compiling to
+ generate sources
+
+Instead, use a predefined arith.h if provided, or generate a default one.
+
+The arithchk binary is still built (but not install) to allow the user to
+run it on its target and use it; so then allowing to build an optimized
+blas library.
+
+Signed-off-by: Samuel Martin <[email protected]>
+---
+ F2CLIBS/libf2c/CMakeLists.txt | 38 ++++++++++++++++++++++++++++----------
+ 1 file changed, 28 insertions(+), 10 deletions(-)
+
+diff --git a/F2CLIBS/libf2c/CMakeLists.txt b/F2CLIBS/libf2c/CMakeLists.txt
+index f98d66a..45a0804 100644
+--- a/F2CLIBS/libf2c/CMakeLists.txt
++++ b/F2CLIBS/libf2c/CMakeLists.txt
+@@ -38,17 +38,35 @@ set(TIME dtime_.c etime_.c)
+ 
+ # For INTEGER*8 support (which requires system-dependent adjustments to
+ # f2c.h), add ${QINT} to the OFILES  assignment below...
+-add_executable(arithchk arithchk.c)
+-if(UNIX)
+-  target_link_libraries(arithchk m)
++if(CMAKE_CROSSCOMPILING)
++  if(ARITH_H)
++    message(STATUS "Using the user-defined '${ARITH_H}' as arith.h header.")
++    configure_file("${ARITH_H}" "${CMAKE_CURRENT_BINARY_DIR}/arith.h" COPYONLY)
++  else()
++    message(STATUS "No user-defined arith.h header.")
++    if(NOT EXISTS "${CMAKE_CURRENT_BINARY_DIR}/arith.h")
++      message(WARNING "Generating the default non-optimized 'arith.h' header.
++
++To generate and provide a custom arith.h header:
++run the cross-compiled arithchk binary on your target,
++and use its output to fill your custom arith.h header.")
++      file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/arith.h"
++        "/* default, not optimized arith.h */")
++    endif()
++  endif()
++else()
++  add_executable(arithchk arithchk.c)
++  if(UNIX)
++    target_link_libraries(arithchk m)
++  endif()
++  set_target_properties(arithchk PROPERTIES COMPILE_DEFINITIONS
++    "NO_FPINIT;NO_LONG_LONG")
++  ADD_CUSTOM_COMMAND(
++     OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/arith.h
++     COMMAND arithchk > ${CMAKE_CURRENT_BINARY_DIR}/arith.h
++     DEPENDS arithchk
++     )
+ endif()
+-set_target_properties(arithchk PROPERTIES COMPILE_DEFINITIONS 
+-  "NO_FPINIT;NO_LONG_LONG")
+-ADD_CUSTOM_COMMAND(
+-   OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/arith.h
+-   COMMAND arithchk > ${CMAKE_CURRENT_BINARY_DIR}/arith.h
+-   DEPENDS arithchk
+-   )
+ 
+ 
+ set(OFILES  ${MISC} ${POW} ${CX} ${DCX} ${REAL} ${DBL} ${INT} 
+-- 
+1.8.5.3
+

package/clapack/clapack-0004-cmake-blas-add-library-and-header-install-rules.patch new file +23 -0

new file mode 100644
index 0000000..e83b066
@@ -0,0 +1,23 @@
+From 675111e8ffc179276a7e4950fe4a4eda4d38a703 Mon Sep 17 00:00:00 2001
+From: Samuel Martin <[email protected]>
+Date: Sat, 11 Jan 2014 21:48:32 +0100
+Subject: [PATCH 4/6] cmake: blas: add library and header install rules
+
+Signed-off-by: Samuel Martin <[email protected]>
+---
+ BLAS/SRC/CMakeLists.txt | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/BLAS/SRC/CMakeLists.txt b/BLAS/SRC/CMakeLists.txt
+index d1caff8..a5de5a1 100644
+--- a/BLAS/SRC/CMakeLists.txt
++++ b/BLAS/SRC/CMakeLists.txt
+@@ -141,3 +141,5 @@ if(UNIX)
+   target_link_libraries(blas m)
+ endif()
+ target_link_libraries(blas f2c)
++install(TARGETS blas LIBRARY DESTINATION lib ARCHIVE DESTINATION lib)
++install(FILES "${CLAPACK_SOURCE_DIR}/INCLUDE/blaswrap.h" DESTINATION include)
+-- 
+1.8.5.3
+

package/clapack/clapack-0005-cmake-lapack-add-library-and-header-install-rules.patch new file +24 -0

new file mode 100644
index 0000000..abba460
@@ -0,0 +1,24 @@
+From 9dfac0d55a31be59a856bad9d3a5071d65176597 Mon Sep 17 00:00:00 2001
+From: Samuel Martin <[email protected]>
+Date: Sat, 11 Jan 2014 21:49:22 +0100
+Subject: [PATCH 5/6] cmake: lapack: add library and header install rules
+
+Signed-off-by: Samuel Martin <[email protected]>
+---
+ SRC/CMakeLists.txt | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+diff --git a/SRC/CMakeLists.txt b/SRC/CMakeLists.txt
+index ac4cce3..aa60555 100644
+--- a/SRC/CMakeLists.txt
++++ b/SRC/CMakeLists.txt
+@@ -377,4 +377,5 @@ if(BUILD_COMPLEX16)
+ endif()
+ add_library(lapack ${ALLOBJ} ${ALLXOBJ})
+ target_link_libraries(lapack blas)
+-
++install(TARGETS lapack LIBRARY DESTINATION lib ARCHIVE DESTINATION lib)
++install(FILES "${CLAPACK_SOURCE_DIR}/INCLUDE/clapack.h" DESTINATION include)
+-- 
+1.8.5.3
+

package/clapack/clapack.mk new file +23 -0

new file mode 100644
index 0000000..23d25fb
@@ -0,0 +1,23 @@
+################################################################################
+#
+# clapack
+#
+################################################################################
+
+CLAPACK_VERSION = 3.2.1
+CLAPACK_SOURCE = clapack-$(CLAPACK_VERSION)-CMAKE.tgz
+# This package provides 3 libraries:
+# - libf2c.a (not installed)
+# - libblas (statically linked with libf2c.a)
+# - liblapack (statically linked with libf2c.a)
+CLAPACK_LICENSE = HPND (libf2c), BSD-3c (libblas and liblapack)
+CLAPACK_LICENSE_FILES = F2CLIBS/libf2c/Notice, COPYING
+CLAPACK_SITE = http://www.netlib.org/clapack
+CLAPACK_INSTALL_STAGING = YES
+CLAPACK_CONF_OPT = -DBUILDTESTING=OFF
+
+ifneq ($(BR2_PACKAGE_CLAPACK_ARITH_H),)
+CLAPACK_CONF_OPT += -DARITH_H=$(BR2_PACKAGE_CLAPACK_ARITH_H)
+endif
+
+$(eval $(cmake-package))

Signature · 6 lines

1.9.2

_______________________________________________
buildroot mailing list
buildroot at busybox.net
http://lists.busybox.net/mailman/listinfo/buildroot

Quoted 1 line

Quoted 1 line

Quoted 1 line

Quoted 1 line

"Samuel" == Samuel Martin <[email protected]> writes:

This package provides BLAS and LAPACK libraries.
Though it is common to find implementation of these two libraries in Fortran, this package provides a C-implementation for both, because:
- Fortran support has been deprecated in Buildroot since the 2013.11 release;
- most of the external toolchains do not provide a Fortran compiler.

Often BLAS build-systems build some test programs and run them to generate some source files or adjust some build optimizations, naively assuming they are building the library for the build-machine. This does not play well when cross-compiling.

This implementation has this defect too, by building and running a tool generating a header.
However, the build-system allows to pass an empty header. So, we have to patch the CMake to build the generator (but never install it) and correctly support building with and without this header provided by the user.

Also, few CMake patches are needed to fix the build and install rules.

Signed-off-by Samuel Martin <[email protected]>

+++ b/package/clapack/Config.in

package/clapack/clapack.mk new file +5 -0

+++ b/package/clapack/clapack.mk

@@ -0,0 +1,23 @@
+################################################################################
+#
+# clapack
+#

This patch add NumPy package for python.

Since Fortran support has been deprecated in Buildroot since the 2013.11 release, and because most of the external toolchains do not provide a Fortran compiler, it is necessary to explicity disable Fortran compiler to avoid catching the one from the host system if any.

We also need to fill a site.cfg file to tell NumPy build-system where it should looking for BLAS and LAPACK libraries.

Some packages may include headers provided by python-numpy package. Thus, python-numpy needs to be installed in the sysroot; so add and enable its install-staging command.

Signed-off-by Samuel Martin <[email protected]>

package/python-numpy/Config.in new file +1 -0

+	  http://www.numpy.org/

package/python-numpy/python-numpy.mk new file +0 -0

new file mode 100644
index 0000000..e7c91c4

package/python-numpy/python-numpy.mk new file +12 -0

+PYTHON_NUMPY_SOURCE = numpy-$(PYTHON_NUMPY_VERSION).tar.gz
+PYTHON_NUMPY_SITE = http://downloads.sourceforge.net/numpy
+PYTHON_NUMPY_LICENSE = BSD-3c
+PYTHON_NUMPY_LICENSE_FILES = LICENSE.txt
+PYTHON_NUMPY_SETUP_TYPE = distutils
+
+PYTHON_NUMPY_BUILD_OPT = --fcompiler=None
+
+define PYTHON_NUMPY_CONFIGURE_CMDS
+	-rm -f $(@D)/site.cfg
+	echo "[DEFAULT]" >> $(@D)/site.cfg
+	echo "library_dirs = $(STAGING_DIR)/usr/lib" >> $(@D)/site.cfg

package/python-numpy/python-numpy.mk new file +11 -0

+# Note that the append '--prefix=...' parameter overrides the one set by the
+# python-package infrastructure in the PYTHON_NUMPY_INSTALL_OPT variable.
+define PYTHON_NUMPY_INSTALL_STAGING_CMDS
+	(cd $(PYTHON_NUMPY_BUILDDIR)/; \
+		$(PYTHON_NUMPY_BASE_ENV) $(PYTHON_NUMPY_ENV) \
+		$(HOST_DIR)/usr/bin/python setup.py install \
+		$(PYTHON_NUMPY_BASE_INSTALL_OPT) \
+		$(PYTHON_NUMPY_INSTALL_OPT) --prefix=$(STAGING_DIR)/usr)
+endef
+
+$(eval $(python-package))

Signature · 6 lines

1.9.2

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This patch add NumPy package for python.

Since Fortran support has been deprecated in Buildroot since the 2013.11 release, and because most of the external toolchains do not provide a Fortran compiler, it is necessary to explicity disable Fortran compiler to avoid catching the one from the host system if any.

We also need to fill a site.cfg file to tell NumPy build-system where it should looking for BLAS and LAPACK libraries.

Some packages may include headers provided by python-numpy package. Thus, python-numpy needs to be installed in the sysroot; so add and enable its install-staging command.

Signed-off-by Samuel Martin <[email protected]>

python-numpy can be linked with libblas and liblapack, so automatically do it when clapack is enabled.

Signed-off-by Samuel Martin <[email protected]>

---
changes v1 -> v2:
- rebase
- split blas/lapack support in its own cset (ThomasP)

---
 package/python-numpy/python-numpy.mk | 7 +++++++
 1 file changed, 7 insertions(+)

package/python-numpy/python-numpy.mk +0 -0

index e7c91c4..b0ab031 100644

package/python-numpy/python-numpy.mk +2 -0

 PYTHON_NUMPY_BUILD_OPT = --fcompiler=None
 

@@ -19,6 +24,8 @@ define PYTHON_NUMPY_CONFIGURE_CMDS
 	echo "library_dirs = $(STAGING_DIR)/usr/lib" >> $(@D)/site.cfg
 	echo "include_dirs = $(STAGING_DIR)/usr/include" >> $(@D)/site.cfg
 	echo "libraries =" >> $(@D)/site.cfg
+	$(foreach lib,$(PYTHON_NUMPY_SITE_CFG_LIBS),\
+		echo "    $(lib)" >> $(@D)/site.cfg ;)
 endef
 
 # Some package may include few headers from NumPy, so let's install it in the

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1.9.2

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This patch bumps OpenCV version and address the minimal set of change to get the new version building correctly:
- update the download location;
- force Qt version to Qt 4 when support is enabled;
- naively fix the v4l support.

However, it does not address a couple improvements, among these:
- jasper support;
- python/numpy support;
- Qt4 and Qt5 support (since the 2.4.6 release), so only Qt4 support is supported in this patch;
- optional libv4l dependency (since 2.4.7 release);
- etc.
These will be addressed in followup patches.

Signed-off-by Samuel Martin <[email protected]>

---
changes v1 -> v2:
- rebase
- use github *.tar.gz source location
- split the big patch in several atomic ones (Yann)

---
 package/opencv/Config.in |  2 +-
 package/opencv/opencv.mk | 11 +++++------
 2 files changed, 6 insertions(+), 7 deletions(-)

package/opencv/Config.in +1 -1

index 49ada5d..2c6200c 100644
@@ -8,7 +8,7 @@ menuconfig BR2_PACKAGE_OPENCV
 	  OpenCV (Open Source Computer Vision) is a library of programming
 	  functions for real time computer vision.
 
-	  http://opencv.willowgarage.com/wiki/
+	  http://opencv.org/
 
 if BR2_PACKAGE_OPENCV
 

package/opencv/opencv.mk +5 -6

index 42f9b0a..10f11cf 100644
@@ -4,9 +4,8 @@
 #
 ################################################################################
 
-OPENCV_VERSION = 2.4.2
-OPENCV_SITE    = http://downloads.sourceforge.net/project/opencvlibrary/opencv-unix/$(OPENCV_VERSION)
-OPENCV_SOURCE  = OpenCV-$(OPENCV_VERSION).tar.bz2
+OPENCV_VERSION = 2.4.8
+OPENCV_SITE = $(call github,itseez,opencv,$(OPENCV_VERSION))
 OPENCV_INSTALL_STAGING = YES
 
 OPENCV_CONF_OPT += \

@@ -140,7 +139,7 @@ OPENCV_CONF_OPT += -DWITH_PNG=OFF
 endif
 
 ifeq ($(BR2_PACKAGE_OPENCV_WITH_QT),y)
-OPENCV_CONF_OPT += -DWITH_QT=ON
+OPENCV_CONF_OPT += -DWITH_QT=4
 OPENCV_DEPENDENCIES += qt
 else
 OPENCV_CONF_OPT += -DWITH_QT=OFF

@@ -154,10 +153,10 @@ OPENCV_CONF_OPT += -DWITH_TIFF=OFF
 endif
 
 ifeq ($(BR2_PACKAGE_OPENCV_WITH_V4L),y)
-OPENCV_CONF_OPT += -DWITH_V4L=ON
+OPENCV_CONF_OPT += -DWITH_V4L=ON -DWITH_LIBV4L=ON
 OPENCV_DEPENDENCIES += libv4l
 else
-OPENCV_CONF_OPT += -DWITH_V4L=OFF
+OPENCV_CONF_OPT += -DWITH_V4L=OFF -DWITH_LIBV4L=OFF
 endif
 
 # Installation hooks:

Signature · 6 lines

1.9.2

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Signed-off-by Samuel Martin <[email protected]>

---
changes v1 -> v2:
- new patch (splitting suggested by Yann)

---
 package/opencv/opencv.mk | 2 ++
 1 file changed, 2 insertions(+)

package/opencv/opencv.mk +2 -0

index 10f11cf..a4d2ee0 100644
@@ -7,6 +7,8 @@
 OPENCV_VERSION = 2.4.8
 OPENCV_SITE = $(call github,itseez,opencv,$(OPENCV_VERSION))
 OPENCV_INSTALL_STAGING = YES
+OPENCV_LICENSE = BSD-3c
+OPENCV_LICENSE_FILES = doc/license.txt
 
 OPENCV_CONF_OPT += \
 	-DCMAKE_BUILD_TYPE=$(if $(BR2_ENABLE_DEBUG),Debug,Release)   \

Signature · 6 lines

1.9.2

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To make easier future package update.

Signed-off-by Samuel Martin <[email protected]>

---
changes v1 -> v2:
- new patch (split suggested by Yann)

---
 package/opencv/opencv.mk | 39 +++++++++++++++++++++++++--------------
 1 file changed, 25 insertions(+), 14 deletions(-)

package/opencv/opencv.mk +18 -11

index a4d2ee0..ae89577 100644
@@ -10,25 +10,36 @@ OPENCV_INSTALL_STAGING = YES
 OPENCV_LICENSE = BSD-3c
 OPENCV_LICENSE_FILES = doc/license.txt
 
+# OpenCV component options
 OPENCV_CONF_OPT += \
 	-DCMAKE_BUILD_TYPE=$(if $(BR2_ENABLE_DEBUG),Debug,Release)   \
-	-DBUILD_WITH_STATIC_CRT=OFF                                  \
-	-DBUILD_DOCS=OFF                                             \
-	-DBUILD_EXAMPLES=OFF                                         \
-	-DBUILD_PACKAGE=OFF                                          \
-	-DBUILD_TESTS=$(if $(BR2_PACKAGE_OPENCV_BUILD_TESTS),ON,OFF) \
+	-DBUILD_WITH_DEBUG_INFO=OFF \
+	-DBUILD_DOCS=OFF            \
+	-DBUILD_EXAMPLES=OFF        \
 	-DBUILD_PERF_TESTS=$(if $(BR2_PACKAGE_OPENCV_BUILD_PERF_TESTS),ON,OFF) \
-	-DBUILD_WITH_DEBUG_INFO=OFF             \
+	-DBUILD_TESTS=$(if $(BR2_PACKAGE_OPENCV_BUILD_TESTS),ON,OFF)
+
+# OpenCV build options
+OPENCV_CONF_OPT += \
+	-DBUILD_WITH_STATIC_CRT=OFF      \
+	-DENABLE_FAST_MATH=ON            \
+	-DENABLE_NOISY_WARNINGS=OFF      \
+	-DENABLE_OMIT_FRAME_POINTER=ON   \
+	-DENABLE_PRECOMPILED_HEADERS=OFF \
+	-DENABLE_PROFILING=OFF           \
+	-DOPENCV_CAN_BREAK_BINARY_COMPATIBILITY=ON
+
+# OpenCV link options
+OPENCV_CONF_OPT += \
 	-DCMAKE_INSTALL_RPATH_USE_LINK_PATH=OFF \
 	-DCMAKE_SKIP_RPATH=OFF                  \
-	-DCMAKE_USE_RELATIVE_PATHS=OFF          \
-	-DENABLE_FAST_MATH=ON                   \
-	-DENABLE_NOISY_WARNINGS=OFF             \
-	-DENABLE_OMIT_FRAME_POINTER=ON          \
-	-DENABLE_PRECOMPILED_HEADERS=OFF        \

Sort per HW features and disable their support when it is not suppported by Buildroot.

Signed-off-by Samuel Martin <[email protected]>

---
changes v1 -> v2:
- new patch (split suggested by Yann)

---
 package/opencv/opencv.mk | 37 ++++++++++++++++++++++++++++++-------
 1 file changed, 30 insertions(+), 7 deletions(-)

package/opencv/opencv.mk +30 -7

index ae89577..046b847 100644
@@ -47,6 +47,7 @@ OPENCV_CONF_OPT += \
 	-DBUILD_opencv_calib3d=$(if $(BR2_PACKAGE_OPENCV_LIB_CALIB3D),ON,OFF)   \
 	-DBUILD_opencv_contrib=$(if $(BR2_PACKAGE_OPENCV_LIB_CONTRIB),ON,OFF)   \
 	-DBUILD_opencv_core=ON                                                  \
+	-DBUILD_opencv_dynamicuda=OFF                                           \
 	-DBUILD_opencv_features2d=$(if $(BR2_PACKAGE_OPENCV_LIB_FEATURES2D),ON,OFF) \
 	-DBUILD_opencv_flann=$(if $(BR2_PACKAGE_OPENCV_LIB_FLANN),ON,OFF)       \
 	-DBUILD_opencv_gpu=$(if $(BR2_PACKAGE_OPENCV_LIB_GPU),ON,OFF)           \

@@ -77,6 +78,35 @@ OPENCV_CONF_OPT += \
 	-DENABLE_SSSE3=$(if $(BR2_X86_CPU_HAS_SSSE3),ON,OFF)
 
 # Software/3rd-party support options.
+# Cuda stuff
+OPENCV_CONF_OPT += \
+	-DWITH_CUBLAS=OFF \
+	-DWITH_CUDA=OFF   \
+	-DWITH_CUFFT=OFF
+
+# NVidia stuff
+OPENCV_CONF_OPT += -DWITH_NVCUVID=OFF
+
+# AMD stuff
+OPENCV_CONF_OPT += \
+	-DWITH_OPENCLAMDFFT=OFF \
+	-DWITH_OPENCLAMDBLAS=OFF
+
+# Intel stuff
+OPENCV_CONF_OPT += \
+	-DWITH_INTELPERC=OFF \
+	-DWITH_IPP=OFF       \
+	-DWITH_TBB=OFF
+
+# Smartek stuff
+OPENCV_CONF_OPT += -DWITH_GIGEAPI=OFF
+
+# Prosilica stuff
+OPENCV_CONF_OPT += -DWITH_PVAPI=OFF
+
+# Ximea stuff
+OPENCV_CONF_OPT += -DWITH_XIMEA=OFF
+
 OPENCV_CONF_OPT += \
 	-DBUILD_JASPER=OFF \
 	-DBUILD_JPEG=OFF   \

@@ -96,22 +126,15 @@ OPENCV_CONF_OPT += \
 	-DWITH_ANDROID_CAMERA=OFF \
 	-DWITH_AVFOUNDATION=OFF	  \
 	-DWITH_CARBON=OFF         \
-	-DWITH_CUBLAS=OFF         \
-	-DWITH_CUDA=OFF           \
-	-DWITH_CUFFT=OFF          \
 	-DWITH_EIGEN=OFF          \
 	-DWITH_IMAGEIO=OFF        \
-	-DWITH_IPP=OFF            \
 	-DWITH_JASPER=OFF         \
 	-DWITH_OPENEXR=OFF        \
 	-DWITH_OPENGL=OFF         \
 	-DWITH_OPENNI=OFF         \
-	-DWITH_PVAPI=OFF          \
 	-DWITH_QUICKTIME=OFF      \
-	-DWITH_TBB=OFF            \
 	-DWITH_UNICAP=OFF         \
 	-DWITH_VIDEOINPUT=OFF     \
-	-DWITH_XIMEA=OFF          \
 	-DWITH_XINE=OFF
 
 OPENCV_DEPENDENCIES += zlib

Signature · 6 lines

1.9.2

_______________________________________________
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Sort SW features by category and disable them when not supported by Buildroot.

Signed-off-by Samuel Martin <[email protected]>

---
changes v1 -> v2:
- new patch (split suggested by Yann)

---
 package/opencv/opencv.mk | 62 +++++++++++++++++++++++++++++++-----------------
 1 file changed, 40 insertions(+), 22 deletions(-)

package/opencv/opencv.mk +40 -22

index 046b847..264507c 100644
@@ -77,7 +77,6 @@ OPENCV_CONF_OPT += \
 	-DENABLE_SSE3=$(if $(BR2_X86_CPU_HAS_SSE3),ON,OFF)   \
 	-DENABLE_SSSE3=$(if $(BR2_X86_CPU_HAS_SSSE3),ON,OFF)
 
-# Software/3rd-party support options.
 # Cuda stuff
 OPENCV_CONF_OPT += \
 	-DWITH_CUBLAS=OFF \

@@ -107,34 +106,53 @@ OPENCV_CONF_OPT += -DWITH_PVAPI=OFF
 # Ximea stuff
 OPENCV_CONF_OPT += -DWITH_XIMEA=OFF
 
+# Non-Linux support (Android options) must remain OFF:
 OPENCV_CONF_OPT += \
-	-DBUILD_JASPER=OFF \
-	-DBUILD_JPEG=OFF   \
-	-DBUILD_PNG=OFF	   \
-	-DBUILD_TIFF=OFF   \
-	-DBUILD_ZLIB=OFF   \
+	-DWITH_ANDROID_CAMERA=OFF          \
 	-DBUILD_ANDROID_CAMERA_WRAPPER=OFF \
 	-DBUILD_ANDROID_EXAMPLES=OFF	   \
+	-DINSTALL_ANDROID_EXAMPLES=OFF     \
 	-DBUILD_FAT_JAVA_LIB=OFF           \
-	-DBUILD_JAVA_SUPPORT=OFF	   \
+	-DBUILD_JAVA_SUPPORT=OFF
+
+# Non-Linux support (Mac OSX options) must remain OFF:
+OPENCV_CONF_OPT += \
+	-DWITH_AVFOUNDATION=OFF	\
+	-DWITH_CARBON=OFF       \
+	-DWITH_QUICKTIME=OFF
+
+# Non-Linux support (Windows options) must remain OFF:
+OPENCV_CONF_OPT += \
+	-DWITH_VFW=OFF      \
+	-DWITH_WIN32UI=OFF  \
+	-DWITH_CSTRIPES=OFF \
+	-DWITH_DSHOW=OFF    \
+	-DWITH_MSMF=OFF     \
+	-DWITH_VIDEOINPUT=OFF
+
+# Software/3rd-party support options.
+OPENCV_CONF_OPT += \
+	-DBUILD_JASPER=OFF  \
+	-DBUILD_JPEG=OFF    \
+	-DBUILD_OPENEXR=OFF \
+	-DBUILD_PNG=OFF	    \
+	-DBUILD_TIFF=OFF    \
+	-DBUILD_ZLIB=OFF    \
 	-DBUILD_NEW_PYTHON_SUPPORT=OFF \
-	-DINSTALL_ANDROID_EXAMPLES=OFF \
 	-DINSTALL_C_EXAMPLES=OFF       \
 	-DINSTALL_PYTHON_EXAMPLES=OFF  \
-	-DINSTALL_TO_MANGLED_PATHS=OFF \
-	-DWITH_1394=OFF           \
-	-DWITH_ANDROID_CAMERA=OFF \
-	-DWITH_AVFOUNDATION=OFF	  \
-	-DWITH_CARBON=OFF         \
-	-DWITH_EIGEN=OFF          \
-	-DWITH_IMAGEIO=OFF        \
-	-DWITH_JASPER=OFF         \
-	-DWITH_OPENEXR=OFF        \
-	-DWITH_OPENGL=OFF         \
-	-DWITH_OPENNI=OFF         \
-	-DWITH_QUICKTIME=OFF      \
-	-DWITH_UNICAP=OFF         \
-	-DWITH_VIDEOINPUT=OFF     \
+	-DINSTALL_TO_MANGLED_PATHS=OFF
+
+# Disabled features (mostly because they are not available in Buildroot), but
+# - eigen: OpenCV does not use it, not take any benefit from it.
+OPENCV_CONF_OPT += \
+	-DWITH_1394=OFF    \
+	-DWITH_EIGEN=OFF   \
+	-DWITH_IMAGEIO=OFF \
+	-DWITH_OPENEXR=OFF \
+	-DWITH_OPENGL=OFF  \
+	-DWITH_OPENNI=OFF  \
+	-DWITH_UNICAP=OFF  \
 	-DWITH_XINE=OFF
 
 OPENCV_DEPENDENCIES += zlib

Signature · 6 lines

1.9.2

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This new module has been introduced in opencv-2.4.8.

Signed-off-by Samuel Martin <[email protected]>

---
changes v1 -> v2:
- new patch (split suggested by Yann)

---
 package/opencv/Config.in | 7 +++++++
 package/opencv/opencv.mk | 1 +
 2 files changed, 8 insertions(+)

package/opencv/Config.in +0 -0

index 2c6200c..129e0aa 100644

package/opencv/Config.in +4 -0

+	help
+	  Include opencv_superres "super resolution" - module into the OpenCV
+	  build.
+
 config BR2_PACKAGE_OPENCV_LIB_TS
 	bool "ts (touchscreen)"
 	default y

package/opencv/opencv.mk +1 -0

index 264507c..f129dc3 100644
@@ -61,6 +61,7 @@ OPENCV_CONF_OPT += \
 	-DBUILD_opencv_photo=$(if $(BR2_PACKAGE_OPENCV_LIB_PHOTO),ON,OFF)       \
 	-DBUILD_opencv_python=OFF                                               \
 	-DBUILD_opencv_stitching=$(if $(BR2_PACKAGE_OPENCV_LIB_STITCHING),ON,OFF) \
+	-DBUILD_opencv_superres=$(if $(BR2_PACKAGE_OPENCV_LIB_SUPERRES),ON,OFF) \
 	-DBUILD_opencv_ts=$(if $(BR2_PACKAGE_OPENCV_LIB_TS),ON,OFF)             \
 	-DBUILD_opencv_video=$(if $(BR2_PACKAGE_OPENCV_LIB_VIDEO),ON,OFF)       \
 	-DBUILD_opencv_videostab=$(if $(BR2_PACKAGE_OPENCV_LIB_VIDEOSTAB),ON,OFF) \

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1.9.2

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This module is used to build programs for training classifiers.

Signed-off-by Samuel Martin <[email protected]>

---
changes v1 -> v2:
- new patch (split suggested by Yann)

---
 package/opencv/opencv.mk | 1 +
 1 file changed, 1 insertion(+)

package/opencv/opencv.mk +1 -0

index f129dc3..b87eddc 100644
@@ -44,6 +44,7 @@ OPENCV_CONF_OPT += \
 # OpenCV module selection
 OPENCV_CONF_OPT += \
 	-DBUILD_opencv_androidcamera=OFF                                        \
+	-DBUILD_opencv_apps=OFF                                                 \
 	-DBUILD_opencv_calib3d=$(if $(BR2_PACKAGE_OPENCV_LIB_CALIB3D),ON,OFF)   \
 	-DBUILD_opencv_contrib=$(if $(BR2_PACKAGE_OPENCV_LIB_CONTRIB),ON,OFF)   \
 	-DBUILD_opencv_core=ON                                                  \

Signature · 6 lines

1.9.2

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Signed-off-by Samuel Martin <[email protected]>

---
changes v1 -> v2:
- new patch (split suggested by Yann)

---
 package/opencv/opencv.mk | 2 ++
 1 file changed, 2 insertions(+)

package/opencv/opencv.mk +1 -0

index b87eddc..a4bdd39 100644
@@ -59,6 +59,7 @@ OPENCV_CONF_OPT += \
 	-DBUILD_opencv_ml=$(if $(BR2_PACKAGE_OPENCV_LIB_ML),ON,OFF)             \
 	-DBUILD_opencv_nonfree=$(if $(BR2_PACKAGE_OPENCV_LIB_NONFREE),ON,OFF)   \
 	-DBUILD_opencv_objdetect=$(if $(BR2_PACKAGE_OPENCV_LIB_OBJDETECT),ON,OFF) \
+	-DBUILD_opencv_ocl=OFF                                                  \
 	-DBUILD_opencv_photo=$(if $(BR2_PACKAGE_OPENCV_LIB_PHOTO),ON,OFF)       \
 	-DBUILD_opencv_python=OFF                                               \
 	-DBUILD_opencv_stitching=$(if $(BR2_PACKAGE_OPENCV_LIB_STITCHING),ON,OFF) \

package/opencv/opencv.mk +0 -0

 	-DWITH_OPENEXR=OFF \
 	-DWITH_OPENGL=OFF  \
 	-DWITH_OPENNI=OFF  \

Signature · 6 lines

1.9.2

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Since there is currently no easy way to know if the current Buildroot configuration has a toolchain supporting OpenMP (especially for external toolchains), then just disable it.

Signed-off-by Samuel Martin <[email protected]>

---
changes v1 -> v2:
- new patch (split suggested by Yann)

---
 package/opencv/opencv.mk | 1 +
 1 file changed, 1 insertion(+)

package/opencv/opencv.mk +1 -0

index a4bdd39..eed5338 100644
@@ -155,6 +155,7 @@ OPENCV_CONF_OPT += \
 	-DWITH_OPENCL=OFF  \
 	-DWITH_OPENEXR=OFF \
 	-DWITH_OPENGL=OFF  \
+	-DWITH_OPENMP=OFF  \
 	-DWITH_OPENNI=OFF  \
 	-DWITH_UNICAP=OFF  \
 	-DWITH_XINE=OFF

Signature · 6 lines

1.9.2

_______________________________________________
buildroot mailing list
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http://lists.busybox.net/mailman/listinfo/buildroot

Signed-off-by Samuel Martin <[email protected]>

---
changes v1 -> v2:
- new patch (split suggested by Yann)

---
 package/opencv/opencv.mk | 2 ++
 1 file changed, 2 insertions(+)

package/opencv/opencv.mk +2 -0

index eed5338..14a095c 100644
@@ -78,6 +78,8 @@ OPENCV_CONF_OPT += \
 	-DENABLE_SSE=$(if $(BR2_X86_CPU_HAS_SSE),ON,OFF)     \
 	-DENABLE_SSE2=$(if $(BR2_X86_CPU_HAS_SSE2),ON,OFF)   \
 	-DENABLE_SSE3=$(if $(BR2_X86_CPU_HAS_SSE3),ON,OFF)   \
+	-DENABLE_SSE41=$(if $(BR2_X86_CPU_HAS_SSE4),ON,OFF)  \
+	-DENABLE_SSE42=$(if $(BR2_X86_CPU_HAS_SSE42),ON,OFF) \
 	-DENABLE_SSSE3=$(if $(BR2_X86_CPU_HAS_SSSE3),ON,OFF)
 
 # Cuda stuff

Signature · 6 lines

1.9.2

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Starting with the 2.4.7 release, for V4L support, OpenCV does not requires a libv4l dependency for its V4L support.

So, it now provides 2 distincts knobs for this: WITH_V4L and a new
one: WITH_LIBV4L.

This patch takes advantage of this new knob and libv4l support is now automatically enabled if only the libv4l package is enabled.

In OpenCV, the logic behind this is:
- using libv4l if available,
- otherwise, use v4l2 or v4l API from the kernel if available.

Signed-off-by Samuel Martin <[email protected]>

---
changes v1 -> v2:
- rebase
- extend commit message

---
 package/opencv/Config.in | 11 ++++++-----
 package/opencv/opencv.mk | 10 +++++++---
 2 files changed, 13 insertions(+), 8 deletions(-)

package/opencv/Config.in +0 -3

index 129e0aa..0db239e 100644
@@ -194,14 +194,15 @@ config BR2_PACKAGE_OPENCV_WITH_TIFF
 
 config BR2_PACKAGE_OPENCV_WITH_V4L
 	bool "v4l support"
-	depends on BR2_LARGEFILE
-	depends on BR2_TOOLCHAIN_HAS_THREADS
-	select BR2_PACKAGE_LIBV4L
 	help

package/opencv/Config.in +0 -0

 comment "Install options"
 

package/opencv/opencv.mk +7 -3

index 14a095c..e6de252 100644
@@ -214,10 +214,14 @@ OPENCV_CONF_OPT += -DWITH_TIFF=OFF
 endif
 
 ifeq ($(BR2_PACKAGE_OPENCV_WITH_V4L),y)
-OPENCV_CONF_OPT += -DWITH_V4L=ON -DWITH_LIBV4L=ON
-OPENCV_DEPENDENCIES += libv4l
+OPENCV_CONF_OPT += \
+	-DWITH_V4L=ON \
+	-DWITH_LIBV4L=$(if $(BR2_PACKAGE_LIBV4L),ON,OFF)
+OPENCV_DEPENDENCIES += $(if $(BR2_PACKAGE_LIBV4L),libv4l)
 else
-OPENCV_CONF_OPT += -DWITH_V4L=OFF -DWITH_LIBV4L=OFF
+OPENCV_CONF_OPT += \
+	-DWITH_V4L=OFF \
+	-DWITH_LIBV4L=OFF
 endif
 
 # Installation hooks:

Signature · 6 lines

1.9.2

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http://lists.busybox.net/mailman/listinfo/buildroot

Signed-off-by Samuel Martin <[email protected]>

---
changes v1 -> v2:
- reword the option help text (Yann)

---
 package/opencv/Config.in | 7 +++++++
 package/opencv/opencv.mk | 7 +++++++
 2 files changed, 14 insertions(+)

package/opencv/Config.in +0 -0

index 0db239e..2f47869 100644

package/opencv/Config.in +0 -0

 config BR2_PACKAGE_OPENCV_WITH_JPEG
 	bool "jpeg support"
 	select BR2_PACKAGE_JPEG

package/opencv/opencv.mk +7 -0

index e6de252..c4aa967 100644
@@ -185,6 +185,13 @@ else
 OPENCV_CONF_OPT += -DWITH_GTK=OFF
 endif
 
+ifeq ($(BR2_PACKAGE_OPENCV_WITH_JASPER),y)
+OPENCV_CONF_OPT += -DWITH_JASPER=ON
+OPENCV_DEPENDENCIES += jasper
+else
+OPENCV_CONF_OPT += -DWITH_JASPER=OFF
+endif
+
 ifeq ($(BR2_PACKAGE_OPENCV_WITH_JPEG),y)
 OPENCV_CONF_OPT += -DWITH_JPEG=ON
 OPENCV_DEPENDENCIES += jpeg

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1.9.2

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Starting with the 2.4.6 release, OpenCV supports both Qt4 and Qt5, but only one can be enable at the same time.

Since Buildroot does not support Qt4/Qt5 co-existence, we keep the Qt support knob as a boolean, but make it depend on BR2_PACKAGE_QT or BR2_PACKAGE_QT5, and automatically uses the enabled one.

Note that we usually use 'select ...' to express the dependencies between packages, but in this case, we cannot since the Qt4/Qt5 co-existence exclusion is not handled by a simple choice, but by a dependency. This makes impossible using 'select ...' for the Qt support knob without triggering a circular dependency at the kconfig level.

Besides, we already use 'depends on ...' to express the dependencies with some "big" packages (like xorg or libgtk2). qt or qt5* packages are fairly big. So, I don't think it will hurt that much to use a 'depends on ...' statement in this case.

Signed-off-by Samuel Martin <[email protected]>

---
changes v1 -> v2:
- rebase
- update threads support dependency for qt5

---
 package/opencv/Config.in | 43 ++++++++++++++++++++++++++++++++-----------
 package/opencv/opencv.mk |  4 ++--
 2 files changed, 34 insertions(+), 13 deletions(-)

package/opencv/Config.in +0 -5

index 2f47869..8825060 100644
@@ -181,17 +181,38 @@ config BR2_PACKAGE_OPENCV_WITH_PNG
 	  Use shared libpng from the target system.
 
 config BR2_PACKAGE_OPENCV_WITH_QT
-	bool "qt backend support"
-	depends on BR2_INSTALL_LIBSTDCPP
-	depends on !BR2_avr32 # qt
-	depends on BR2_USE_MMU # qt
-	select BR2_PACKAGE_QT

package/opencv/Config.in +18 -0

+	select BR2_PACKAGE_QT_STL             if BR2_PACKAGE_QT
+	select BR2_PACKAGE_QT_GUI_MODULE      if BR2_PACKAGE_QT && \
+	                                          BR2_PACKAGE_OPENCV_LIB_HIGHGUI
+	select BR2_PACKAGE_QT_TEST            if BR2_PACKAGE_QT && \
+	                                          BR2_PACKAGE_OPENCV_LIB_HIGHGUI
+	select BR2_PACKAGE_QT5BASE            if BR2_PACKAGE_QT5
+	select BR2_PACKAGE_QT5BASE_CONCURRENT if BR2_PACKAGE_QT5
+	select BR2_PACKAGE_QT5BASE_TEST       if BR2_PACKAGE_QT5
+	select BR2_PACKAGE_QT5BASE_GUI        if BR2_PACKAGE_QT5
+	select BR2_PACKAGE_QT5BASE_WIDGETS    if BR2_PACKAGE_QT5
+	help
+	  Enable Qt support for OpenCV.
+
+	  If Qt4 is already enabled, then use Qt4 with QtTest module and STL
+	  support.
+
+	  If Qt5 is already enabled, then use Qt5 with the following components:
+	  base, concurrent, test, gui and widgets.

package/opencv/Config.in +0 -0

 config BR2_PACKAGE_OPENCV_WITH_TIFF
 	bool "tiff support"

package/opencv/opencv.mk +0 -0

index c4aa967..58bc5c0 100644

package/opencv/opencv.mk +0 -0

 else
 OPENCV_CONF_OPT += -DWITH_QT=OFF
 endif

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1.9.2

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opencv_python module needs python-numpy because it uses some numpy headers in this wrapper.

A patch in the OpenCV's build-system is also needed to prevent it from trying to run python for numpy detection. This patch has already been integrated upstream.

Signed-off-by Samuel Martin <[email protected]>

package/opencv/opencv.mk +0 -1

 	-DBUILD_opencv_stitching=$(if $(BR2_PACKAGE_OPENCV_LIB_STITCHING),ON,OFF) \
 	-DBUILD_opencv_superres=$(if $(BR2_PACKAGE_OPENCV_LIB_SUPERRES),ON,OFF) \
 	-DBUILD_opencv_ts=$(if $(BR2_PACKAGE_OPENCV_LIB_TS),ON,OFF)             \

@@ -143,7 +143,6 @@ OPENCV_CONF_OPT += \
 	-DBUILD_PNG=OFF	    \
 	-DBUILD_TIFF=OFF    \
 	-DBUILD_ZLIB=OFF    \
-	-DBUILD_NEW_PYTHON_SUPPORT=OFF \
 	-DINSTALL_C_EXAMPLES=OFF       \
 	-DINSTALL_PYTHON_EXAMPLES=OFF  \
 	-DINSTALL_TO_MANGLED_PATHS=OFF

package/opencv/opencv.mk +2 -0

+endif
+
 # Installation hooks:
 define OPENCV_CLEAN_INSTALL_DOC
 	$(RM) -fr $(TARGET_DIR)/usr/share/OpenCV/doc

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1.9.2

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OpenCV allows to enable/disable the selection of modules (a.k.a. opencv libraries). These modules depend one from the others; these

dependencies are already handled by the build-system (CMake).

However, the way we handled them in Buildroot was not really clean. For each opencv module, there is a kconfig option, but we forced the corresponding cmake config option without checking for module dependencies.

This patch replicates the modules' dependency relations in the Config.in, so that the selection of the user will actually be built.

Signed-off-by Samuel Martin <[email protected]>

---
changes v1 -> v2:
- rebase

---
 package/opencv/Config.in | 75 ++++++++++++++++++++++++++++++++++++++----------
 1 file changed, 60 insertions(+), 15 deletions(-)

package/opencv/Config.in +60 -15

index e52f22a..31732a6 100644
@@ -8,6 +8,8 @@ menuconfig BR2_PACKAGE_OPENCV
 	  OpenCV (Open Source Computer Vision) is a library of programming
 	  functions for real time computer vision.
 
+	  Note that the opencv_core module is automatically enabled.
+
 	  http://opencv.org/
 
 if BR2_PACKAGE_OPENCV

@@ -16,109 +18,152 @@ comment "OpenCV modules"
 
 config BR2_PACKAGE_OPENCV_LIB_CALIB3D
 	bool "calib3d"
-	default y
+	select BR2_PACKAGE_OPENCV_LIB_IMGPROC
+	select BR2_PACKAGE_OPENCV_LIB_FEATURES2D
 	help
 	  Include opencv_calib3d module into the OpenCV build.
 
 config BR2_PACKAGE_OPENCV_LIB_CONTRIB
 	bool "contrib"
-	default y
+	select BR2_PACKAGE_OPENCV_LIB_CALIB3D
+	select BR2_PACKAGE_OPENCV_LIB_FEATURES2D
+	select BR2_PACKAGE_OPENCV_LIB_IMGPROC
+	select BR2_PACKAGE_OPENCV_LIB_ML
+	select BR2_PACKAGE_OPENCV_LIB_OBJDETECT
+	select BR2_PACKAGE_OPENCV_LIB_VIDEO
 	help
 	  Include opencv_contrib module into the OpenCV build.
 
+# opencv_core module is automatically enabled when OpenCV package is selected
+
 config BR2_PACKAGE_OPENCV_LIB_FEATURES2D
 	bool "features2d"
-	default y
+	select BR2_PACKAGE_OPENCV_LIB_FLANN
+	select BR2_PACKAGE_OPENCV_LIB_IMGPROC
 	help
 	  Include opencv_features2d module into the OpenCV build.
 
 config BR2_PACKAGE_OPENCV_LIB_FLANN
 	bool "flann"
-	default y
+	# opencv_core dependency is already enabled
 	help
 	  Include opencv_flann module into the OpenCV build.
 
 config BR2_PACKAGE_OPENCV_LIB_GPU
 	bool "gpu"
+	select BR2_PACKAGE_OPENCV_LIB_CALIB3D
+	select BR2_PACKAGE_OPENCV_LIB_IMGPROC
+	select BR2_PACKAGE_OPENCV_LIB_LEGACY
+	select BR2_PACKAGE_OPENCV_LIB_OBJDETECT
+	select BR2_PACKAGE_OPENCV_LIB_PHOTO
+	select BR2_PACKAGE_OPENCV_LIB_VIDEO
 	help
 	  Include opencv_gpu module into the OpenCV build.
 
 config BR2_PACKAGE_OPENCV_LIB_HIGHGUI
 	bool "highgui"
-	default y
+	select BR2_PACKAGE_OPENCV_LIB_IMGPROC
 	help
 	  Include opencv_highgui module into the OpenCV build.
 
 config BR2_PACKAGE_OPENCV_LIB_IMGPROC
 	bool "imgproc"
-	default y
+	# opencv_core dependency is already enabled
 	help
 	  Include opencv_imgproc module into the OpenCV build.
 
 config BR2_PACKAGE_OPENCV_LIB_LEGACY
 	bool "legacy"
-	default y
+	select BR2_PACKAGE_OPENCV_LIB_CALIB3D
+	select BR2_PACKAGE_OPENCV_LIB_ML
+	select BR2_PACKAGE_OPENCV_LIB_VIDEO
 	help
 	  Include opencv_legacy module into the OpenCV build.
 
 config BR2_PACKAGE_OPENCV_LIB_ML
 	bool "ml (machine learning)"
-	default y
+	# opencv_core dependency is already enabled
 	help
 	  Include opencv_ml module into the OpenCV build.
 
 config BR2_PACKAGE_OPENCV_LIB_NONFREE
 	bool "nonfree"
+	select BR2_PACKAGE_OPENCV_LIB_CALIB3D
+	select BR2_PACKAGE_OPENCV_LIB_FEATURES2D
+	select BR2_PACKAGE_OPENCV_LIB_IMGPROC
 	help
 	  Include opencv_nonfree module into the OpenCV build.
 
 config BR2_PACKAGE_OPENCV_LIB_OBJDETECT
 	bool "objdetect"
-	default y
+	# opencv_core dependency is already enabled
+	select BR2_PACKAGE_OPENCV_LIB_IMGPROC
 	help
 	  Include opencv_objdetect module into the OpenCV build.
 
 config BR2_PACKAGE_OPENCV_LIB_PHOTO
 	bool "photo"
-	default y
+	select BR2_PACKAGE_OPENCV_LIB_IMGPROC
 	help
 	  Include opencv_photo module into the OpenCV build.
 
 config BR2_PACKAGE_OPENCV_LIB_PYTHON
 	bool "python"
 	depends on BR2_PACKAGE_PYTHON
+	# opencv_core dependency is already enabled
+	select BR2_PACKAGE_OPENCV_LIB_CALIB3D
+	select BR2_PACKAGE_OPENCV_LIB_CONTRIB
+	select BR2_PACKAGE_OPENCV_LIB_FEATURES2D
+	select BR2_PACKAGE_OPENCV_LIB_FLANN
+	select BR2_PACKAGE_OPENCV_LIB_HIGHGUI
+	select BR2_PACKAGE_OPENCV_LIB_IMGPROC
+	select BR2_PACKAGE_OPENCV_LIB_LEGACY
+	select BR2_PACKAGE_OPENCV_LIB_ML
+	select BR2_PACKAGE_OPENCV_LIB_OBJDETECT
+	select BR2_PACKAGE_OPENCV_LIB_PHOTO
+	select BR2_PACKAGE_OPENCV_LIB_VIDEO
 	help
 	  Include opencv_python module into the OpenCV build.
 	  No python example is installed.
 
 config BR2_PACKAGE_OPENCV_LIB_STITCHING
 	bool "stitching"
-	default y
+	select BR2_PACKAGE_OPENCV_LIB_CALIB3D
+	select BR2_PACKAGE_OPENCV_LIB_FEATURES2D
+	select BR2_PACKAGE_OPENCV_LIB_IMGPROC
+	select BR2_PACKAGE_OPENCV_LIB_OBJDETECT
 	help
 	  Include opencv_stitching module into the OpenCV build.
 
 config BR2_PACKAGE_OPENCV_LIB_SUPERRES
 	bool "superres"
-	default y
+	select BR2_PACKAGE_OPENCV_LIB_IMGPROC
+	select BR2_PACKAGE_OPENCV_LIB_VIDEO
 	help
 	  Include opencv_superres "super resolution" - module into the OpenCV
 	  build.
 
 config BR2_PACKAGE_OPENCV_LIB_TS
 	bool "ts (touchscreen)"
-	default y
+	# opencv_core dependency is already enabled
+	select BR2_PACKAGE_OPENCV_LIB_FEATURES2D
 	help
 	  Include opencv_ts module into the OpenCV build.
 
 config BR2_PACKAGE_OPENCV_LIB_VIDEO
 	bool "video"
-	default y
+	select BR2_PACKAGE_OPENCV_LIB_IMGPROC
 	help
 	  Include opencv_video module into the OpenCV build.
 
 config BR2_PACKAGE_OPENCV_LIB_VIDEOSTAB
 	bool "videostab"
-	default y
+	select BR2_PACKAGE_OPENCV_LIB_CALIB3D
+	select BR2_PACKAGE_OPENCV_LIB_FEATURES2D
+	select BR2_PACKAGE_OPENCV_LIB_HIGHGUI
+	select BR2_PACKAGE_OPENCV_LIB_IMGPROC
+	select BR2_PACKAGE_OPENCV_LIB_PHOTO
+	select BR2_PACKAGE_OPENCV_LIB_VIDEO
 	help
 	  Include opencv_videostab module into the OpenCV build.
 

Signature · 6 lines

1.9.2

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This new hidden symbol aims to automatically select all OpenCV modules required when another package use the deprecated OpenCV 'cv.h' headers.

Signed-off-by Samuel Martin <[email protected]>

---
changes v1 -> v2:
- new patch

---
 package/opencv/Config.in | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

package/opencv/Config.in +15 -0

index 31732a6..628c8f3 100644
@@ -14,6 +14,21 @@ menuconfig BR2_PACKAGE_OPENCV
 
 if BR2_PACKAGE_OPENCV
 
+config BR2_PACKAGE_OPENCV_USE_DEPRECATED_HEADERS
+	bool
+	select BR2_PACKAGE_OPENCV_LIB_CALIB3D
+	select BR2_PACKAGE_OPENCV_LIB_FEATURES2D
+	select BR2_PACKAGE_OPENCV_LIB_HIGHGUI
+	select BR2_PACKAGE_OPENCV_LIB_IMGPROC
+	select BR2_PACKAGE_OPENCV_LIB_LEGACY
+	select BR2_PACKAGE_OPENCV_LIB_ML
+	select BR2_PACKAGE_OPENCV_LIB_OBJDETECT
+	select BR2_PACKAGE_OPENCV_LIB_PHOTO
+	select BR2_PACKAGE_OPENCV_LIB_VIDEO
+	help
+	  Select all required modules needed by the deprecated OpenCV API
+	  (cv.h, cvaux.h, cxcore.h, etc).
+
 comment "OpenCV modules"
 
 config BR2_PACKAGE_OPENCV_LIB_CALIB3D

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1.9.2

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Add OpenCV support for video filter in vlc.

vlc source code still includes the headers from the deprecated OpenCV API.

Signed-off-by Samuel Martin <[email protected]>

---
changes v1 -> v2:
- new patch

---
 package/vlc/Config.in | 1 +
 package/vlc/vlc.mk    | 7 +++++++
 2 files changed, 8 insertions(+)

package/vlc/Config.in +1 -0

index cdb0d16..ede9269 100644
@@ -11,6 +11,7 @@ config BR2_PACKAGE_VLC
 	depends on BR2_USE_WCHAR
 	depends on BR2_TOOLCHAIN_HAS_THREADS
 	select BR2_PACKAGE_LIBVORBIS if BR2_PACKAGE_OPUS
+	select BR2_PACKAGE_OPENCV_USE_DEPRECATED_HEADERS if BR2_PACKAGE_OPENCV
 	help
 	  VLC is a free and open source cross-platform multimedia player
 	  and framework that plays most multimedia files as well as DVD,

package/vlc/vlc.mk +7 -0

index e14c9c3..6e0f61d 100644
@@ -125,6 +125,13 @@ else
 VLC_CONF_OPT += --disable-glx
 endif
 
+ifeq ($(BR2_PACKAGE_OPENCV),y)
+VCL_CONF_OPT += --with-opencv
+VLC_DEPENDENCIES += opencv
+else
+VLC_CONF_OPT += --without-opencv
+endif
+
 ifeq ($(BR2_PACKAGE_OPUS),y)
 VLC_CONF_OPT += --enable-opus
 VLC_DEPENDENCIES += libvorbis opus

Signature · 6 lines

1.9.2

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gst1 opencv plugin source code still include OpenCV's headers from its deprecated API.

Use the newly introduced BR2_PACKAGE_OPENCV_USE_DEPRECATED_HEADERS to select all required OpenCV module dependencies.

Signed-off-by Samuel Martin <[email protected]>

---
changes v1 -> v2:
- new patch

---
 package/gstreamer1/gst1-plugins-bad/Config.in | 10 +---------
 1 file changed, 1 insertion(+), 9 deletions(-)

package/gstreamer1/gst1-plugins-bad/Config.in +1 -9

index 02fa18c..e8bc110 100644
@@ -429,15 +429,7 @@ config BR2_PACKAGE_GST1_PLUGINS_BAD_PLUGIN_OPENCV
 	# Remove the following opencv modules when gstreamer fixes the
 	# problem of including the old "cv.h" header
 	# bug: https://bugzilla.gnome.org/show_bug.cgi?id=725163
-	select BR2_PACKAGE_OPENCV_LIB_CALIB3D
-	select BR2_PACKAGE_OPENCV_LIB_CONTRIB
-	select BR2_PACKAGE_OPENCV_LIB_FEATURES2D
-	select BR2_PACKAGE_OPENCV_LIB_FLANN
-	select BR2_PACKAGE_OPENCV_LIB_IMGPROC
-	select BR2_PACKAGE_OPENCV_LIB_LEGACY
-	select BR2_PACKAGE_OPENCV_LIB_ML
-	select BR2_PACKAGE_OPENCV_LIB_OBJDETECT
-	select BR2_PACKAGE_OPENCV_LIB_VIDEO
+	select BR2_PACKAGE_OPENCV_USE_DEPRECATED_HEADERS
 	help
 	  GStreamer OpenCV Plugins
 

Signature · 6 lines

1.9.2

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opencv: bump to version 2.4.8

opencv: add license details

opencv: sort and reorder CMake configuration flags
opencv: sort and reorder HW support options
opencv: sort and reorder SW support options
opencv: add superres module knob
opencv: disable apps module
opencv: disable opencl support/module
opencv: disable OpenMP support
opencv: enable SSE4.1 SSE4.2 support when available

opencv: rework V4L/libv4l support

opencv: add jasper support

opencv: add Qt5 support
opencv: add python/numpy support
opencv: define modules inter-dependencies
opencv: add hidden symbol BR2_PACKAGE_OPENCV_USE_DEPRECATED_HEADERS
vlc: add opencv support
gst1-plugins-bad: rework opencv plugin dependencies