René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Compiled failed in arm64","articleBody":"\u003c!--To help us understand and resolve your issue, please fill out the form to the best of your ability.--\u003e\r\n\u003c!--You can feel free to delete the sections that do not apply.--\u003e\r\n\r\n### Compilation problems\r\n\r\n**Build steps**\r\n```\r\ntar -zxvf matplotlib-3.1.2.tar.gz\r\ncd matplotlib-3.1.2\r\npython setup.py build\r\n```\r\n\r\n**Error detail**\r\n``` \r\nBUILDING MATPLOTLIB\r\n  matplotlib: yes [3.1.2]\r\n      python: yes [3.6.3 (default, Nov 23 2020, 09:56:24)  [GCC 4.8.5 20150623\r\n                  (Red Hat 4.8.5-44)]]\r\n    platform: yes [linux]\r\n\r\nOPTIONAL SUBPACKAGES\r\n sample_data: yes [installing]\r\n       tests: no  [skipping due to configuration]\r\n\r\nOPTIONAL BACKEND EXTENSIONS\r\n         agg: yes [installing]\r\n       tkagg: yes [installing; run-time loading from Python Tcl/Tk]\r\n      macosx: no  [Mac OS-X only]\r\n\r\nOPTIONAL PACKAGE DATA\r\n        dlls: no  [skipping due to configuration]\r\n\r\n/usr/local/python3.6/lib/python3.6/distutils/dist.py:261: UserWarning: Unknown distribution option: 'project_urls'\r\n  warnings.warn(msg)\r\nrunning build\r\nrunning build_py\r\ncopying lib/matplotlib/mpl-data/matplotlibrc -\u003e build/lib.linux-aarch64-3.6/matplotlib/mpl-data\r\nUPDATING build/lib.linux-aarch64-3.6/matplotlib/_version.py\r\nset build/lib.linux-aarch64-3.6/matplotlib/_version.py to '3.1.2'\r\nrunning build_ext\r\nbuilding 'matplotlib._png' extension\r\ngcc -pthread -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall -fPIC -DPY_ARRAY_UNIQUE_SYMBOL=MPL_matplotlib__png_ARRAY_API -DNPY_NO_DEPRECATED_API=NPY_1_7_API_VERSION -D__STDC_FORMAT_MACROS=1 -I/home/wah/venv/lib/python3.6/site-packages/numpy/core/include -I/home/wah/venv/include -I/usr/local/python3.6/include/python3.6m -c src/checkdep_libpng.c -o build/temp.linux-aarch64-3.6/src/checkdep_libpng.o -I/usr/include/libpng15\r\nsrc/checkdep_libpng.c:2:9: note: #pragma message: Compiling with libpng version 1.5.13.\r\n #pragma message(\"Compiling with libpng version \" PNG_LIBPNG_VER_STRING \".\")\r\n         ^\r\ngcc -pthread -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall -fPIC -DPY_ARRAY_UNIQUE_SYMBOL=MPL_matplotlib__png_ARRAY_API -DNPY_NO_DEPRECATED_API=NPY_1_7_API_VERSION -D__STDC_FORMAT_MACROS=1 -I/home/wah/venv/lib/python3.6/site-packages/numpy/core/include -I/home/wah/venv/include -I/usr/local/python3.6/include/python3.6m -c src/_png.cpp -o build/temp.linux-aarch64-3.6/src/_png.o -I/usr/include/libpng15\r\ngcc -pthread -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall -fPIC -DPY_ARRAY_UNIQUE_SYMBOL=MPL_matplotlib__png_ARRAY_API -DNPY_NO_DEPRECATED_API=NPY_1_7_API_VERSION -D__STDC_FORMAT_MACROS=1 -I/home/wah/venv/lib/python3.6/site-packages/numpy/core/include -I/home/wah/venv/include -I/usr/local/python3.6/include/python3.6m -c src/mplutils.cpp -o build/temp.linux-aarch64-3.6/src/mplutils.o -I/usr/include/libpng15\r\ng++ -pthread -shared build/temp.linux-aarch64-3.6/src/checkdep_libpng.o build/temp.linux-aarch64-3.6/src/_png.o build/temp.linux-aarch64-3.6/src/mplutils.o -L/usr/local/python3.6/lib -lpython3.6m -o build/lib.linux-aarch64-3.6/matplotlib/_png.cpython-36m-aarch64-linux-gnu.so -lpng15\r\ncollect2: error: ld terminated with signal 9 [Killed]\r\nerror: command 'g++' failed with exit status 1\r\n```\r\n\r\nI've tried to expand virtual memory，it didn't work.\r\n\r\n**Matplotlib version**\r\n\u003c!--Please specify your platform and versions of the relevant libraries you are using:--\u003e\r\n  * Operating system: CentOS Linux release 7.9.2009 (AltArch)\r\n  * kernal: Linux ecs-ea1f 4.18.0-193.28.1.el7.aarch64 #1 SMP Wed Oct 21 16:25:35 UTC 2020 aarch64 aarch64 aarch64 GNU/Linux\r\n  * Matplotlib version: 3.1.2\r\n  * Python version:  python3.6.3\r\n  * Other libraries: freetype-2.8,gcc-4.8.5,gcc-c++-4.8.5\r\n  * mem: 8G\r\n  * swap: 2G\r\n\r\n\r\n","author":{"url":"https://github.com/wanganhong","@type":"Person","name":"wanganhong"},"datePublished":"2020-11-27T08:42:32.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":4},"url":"https://github.com/19027/matplotlib/issues/19027"}