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opencv: Fix build with OpenCV < 3

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We only need the opencv2/bgsegm.hpp header for OpenCV >= 3 and have
compat code for older versions.
This commit is contained in:
Sebastian Dröge 2017-01-12 15:55:52 +02:00
parent 9539edd1b5
commit 47847a4d5d
2 changed files with 23 additions and 5 deletions
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9
configure.ac
View file

@ -2730,8 +2730,13 @@ AG_GST_CHECK_FEATURE(OPENCV, [opencv plugins], opencv, [
opencv2/imgproc/imgproc_c.h \
opencv2/objdetect/objdetect.hpp \
opencv2/video/background_segm.hpp], [], [something_not_found=yes])
dnl check opencv_contrib headers (not always present in opencv distributions)
AC_CHECK_HEADERS([opencv2/bgsegm.hpp], [], [something_not_found=yes])
dnl Only required for OpenCV >= 3, we have compat code for older versions
PKG_CHECK_MODULES(OPENCV_3, opencv >= 3, [
dnl check opencv_contrib headers (not always present in opencv distributions)
AC_CHECK_HEADERS([opencv2/bgsegm.hpp], [], [something_not_found=yes])],
[NOT_A_PROBLEM=yes])
CPPFLAGS=$OLD_CPPFLAGS
AC_LANG([C])

19
ext/opencv/meson.build
View file

@ -32,6 +32,9 @@ libopencv2_headers = [
'opencv2/imgproc/imgproc_c.h',
'opencv2/objdetect/objdetect.hpp',
'opencv2/video/background_segm.hpp',
]
libopencv3_headers = [
'opencv2/bgsegm.hpp',
]
@ -39,13 +42,14 @@ gstopencv_cargs = ['-DGST_HAAR_CASCADES_DIR="@0@"']
# First, check for the upper version limit and ensure it isn't found
# FIXME: When 0.37.0 is released, change this to use many-version-conditions
opencv3_dep = dependency('opencv', version : '>3.1.0', required : false)
opencv3_1_dep = dependency('opencv', version : '>3.1.0', required : false)
# Then, check if the lower version limit is found
opencv2_dep = dependency('opencv', version : '>=2.3.0', required : false)
opencv3_dep = dependency('opencv', version : '>= 3.0 ', required : false)
opencv2_found = false
if opencv3_dep.found()
message('OpenCV version is too new: \'' + opencv3_dep.version() + '\' (need <= 3.1.0)')
if opencv3_1_dep.found()
message('OpenCV version is too new: \'' + opencv3_1_dep.version() + '\' (need <= 3.1.0)')
elif opencv2_dep.found()
message('OpenCV found, version is \'' + opencv2_dep.version() + '\'')
opencv2_found = true
@ -55,6 +59,15 @@ elif opencv2_dep.found()
opencv2_found = false
endif
endforeach
if opencv3_dep.found()
foreach h : libopencv3_headers
if not cxx.has_header(h)
message('Needed header "' + h + '" not found')
opencv2_found = false
endif
endforeach
endif
endif
if opencv2_found