[Buildroot] [PATCH 1/1] package/zxing-cpp: fix python build

* [Buildroot] [PATCH 1/1] package/zxing-cpp: fix python build
@ 2023-09-19 19:52 Fabrice Fontaine
  2023-09-21 10:29 ` Thomas Petazzoni via buildroot
  2023-09-25 11:56 ` Peter Korsgaard
  0 siblings, 2 replies; 3+ messages in thread
From: Fabrice Fontaine @ 2023-09-19 19:52 UTC (permalink / raw)
  To: buildroot; +Cc: Fabrice Fontaine

Fix the following build failures raised since bump to version 1.4.0 in
commit 456a7398316655ad0b669635f580e4887c24a700:

-- Found PythonInterp: /usr/bin/python3.6 (found suitable version "3.6.9", minimum required is "3.6")
CMake Error at /home/buildroot/autobuild/run/instance-3/output-1/host/sparc64-buildroot-linux-gnu/sysroot/usr/share/cmake/pybind11/FindPythonLibsNew.cmake:147 (message):
  Python config failure:

  Traceback (most recent call last):

    File "<string>", line 6, in <module>

  ImportError: cannot import name 'sysconfig'

and

In file included from /home/buildroot/autobuild/instance-1/output-1/host/include/python3.11/Python.h:38,
                 from /home/buildroot/autobuild/instance-1/output-1/host/sh4-buildroot-linux-gnu/sysroot/usr/include/pybind11/detail/common.h:266,
                 from /home/buildroot/autobuild/instance-1/output-1/host/sh4-buildroot-linux-gnu/sysroot/usr/include/pybind11/attr.h:13,
                 from /home/buildroot/autobuild/instance-1/output-1/host/sh4-buildroot-linux-gnu/sysroot/usr/include/pybind11/detail/class.h:12,
                 from /home/buildroot/autobuild/instance-1/output-1/host/sh4-buildroot-linux-gnu/sysroot/usr/include/pybind11/pybind11.h:13,
                 from /home/buildroot/autobuild/instance-1/output-1/host/sh4-buildroot-linux-gnu/sysroot/usr/include/pybind11/numpy.h:12,
                 from /home/buildroot/autobuild/instance-1/output-1/build/zxing-cpp-2.1.0/wrappers/python/zxing.cpp:18:
/home/buildroot/autobuild/instance-1/output-1/host/include/python3.11/pyport.h:601:2: error: #error "LONG_BIT definition appears wrong for platform (bad gcc/glibc config?)."
  601 | #error "LONG_BIT definition appears wrong for platform (bad gcc/glibc config?)."
      |  ^~~~~

Fixes:
 - http://autobuild.buildroot.org/results/665b246a4bb14480152ee59050672a7469148a5b
 - http://autobuild.buildroot.org/results/0502b05020de57e4910125c699c4264047187c51
 - http://autobuild.buildroot.org/results/c5e7fe83d46c704e05800e3ae62bf476458c7b71

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
---
 package/zxing-cpp/zxing-cpp.mk | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/package/zxing-cpp/zxing-cpp.mk b/package/zxing-cpp/zxing-cpp.mk
index 8256b1a254..b0cadf1b1f 100644
--- a/package/zxing-cpp/zxing-cpp.mk
+++ b/package/zxing-cpp/zxing-cpp.mk
@@ -33,7 +33,10 @@ endif
 
 ifeq ($(BR2_PACKAGE_PYTHON3)$(BR2_PACKAGE_PYTHON_PYBIND),yy)
 ZXING_CPP_DEPENDENCIES += python3 python-pybind
-ZXING_CPP_CONF_OPTS += -DBUILD_PYTHON_MODULE=ON
+ZXING_CPP_CONF_OPTS += \
+	-DBUILD_PYTHON_MODULE=ON \
+	-DPYTHON_EXECUTABLE=$(HOST_DIR)/bin/python3 \
+	-DPYTHON_INCLUDE_DIRS=$(STAGING_DIR)/usr/include/python$(PYTHON3_VERSION_MAJOR)
 else
 ZXING_CPP_CONF_OPTS += -DBUILD_PYTHON_MODULE=OFF
 endif
-- 
2.40.1

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