railsで画像アップロード機能を作ったのですが、safariで画像をアップロードしたときに画像が勝手に回転されて保存されます。
そこで、RMagickというgemを使おうとしたのですが、やたらエラーがでます。
linux
1Building native extensions. This could take a while... 2ERROR: Error installing rmagick: 3 ERROR: Failed to build gem native extension. 4 5 current directory: /home/user/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/rmagick-4.0.0/ext/RMagick 6/home/user/.rbenv/versions/2.6.5/bin/ruby -I /home/user/.rbenv/versions/2.6.5/lib/ruby/site_ruby/2.6.0 -r ./siteconf20200118-22662-1arcm93.rb extconf.rb 7checking for brew... no 8checking for pacman... no 9checking for gcc... yes 10checking for pkg-config... yes 11 12Warning: Found more than one ImageMagick installation. This could cause problems at runtime. 13 - ImageMagick 14 - ImageMagick 15 - ImageMagick 16 - ImageMagick 17 - ImageMagick 18 - ImageMagick 19 - ImageMagick 20 - ImageMagick 21 22checking for outdated ImageMagick version (<= 6.7.7)... no 23checking for __GNUC__... yes 24checking for Ruby version >= 2.3.0... yes 25checking for magick/MagickCore.h... no 26 27 28ERROR: Can't install RMagick 4.0.0. Can't find magick/MagickCore.h. 29 30*** extconf.rb failed *** 31Could not create Makefile due to some reason, probably lack of necessary 32libraries and/or headers. Check the mkmf.log file for more details. You may 33need configuration options.Gem files will remain installed in /home/kyo/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/rmagick-4.0.0 for inspection. 34Provided configuration options: 35 --with-opt-dir 36 --without-opt-dir 37 --with-opt-include 38 --without-opt-include=${opt-dir}/include 39 --with-opt-lib 40 --without-opt-lib=${opt-dir}/lib 41 --with-make-prog 42 --without-make-prog 43 --srcdir=. 44 --curdir 45 --ruby=/home/user/.rbenv/versions/2.6.5/bin/$(RUBY_BASE_NAME) 46 47To see why this extension failed to compile, please check the mkmf.log which can be found here: 48 49 /home/user/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/extensions/x86_64-linux/2.6.0/rmagick-4.0.0/mkmf.log 50 51extconf failed, exit code 1 52 53Gem files will remain installed in /home/user/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/rmagick-4.0.0 for inspection. 54Results logged to /home/user/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/extensions/x86_64-linux/2.6.0/rmagick-4.0.0/gem_make.out
解決方法が分かりません。どうすればよいでしょうか?
また、RMagick以外に画像が回転しないようにすることができないでしょうか?
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