【Ruby on Rails】画像アップロード時に勝手に回転されて保存される

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。

Building native extensions. This could take a while...
ERROR:  Error installing rmagick:
        ERROR: Failed to build gem native extension.

    current directory: /home/user/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/rmagick-4.0.0/ext/RMagick
/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
checking for brew... no
checking for pacman... no
checking for gcc... yes
checking for pkg-config... yes

Warning: Found more than one ImageMagick installation. This could cause problems at runtime.
 - ImageMagick
 - ImageMagick
 - ImageMagick
 - ImageMagick
 - ImageMagick
 - ImageMagick
 - ImageMagick
 - ImageMagick

checking for outdated ImageMagick version (<= 6.7.7)... no
checking for __GNUC__... yes
checking for Ruby version >= 2.3.0... yes
checking for magick/MagickCore.h... no


ERROR: Can't install RMagick 4.0.0. Can't find magick/MagickCore.h.

*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of necessary
libraries and/or headers.  Check the mkmf.log file for more details.  You may
need 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.
Provided configuration options:
        --with-opt-dir
        --without-opt-dir
        --with-opt-include
        --without-opt-include=${opt-dir}/include
        --with-opt-lib
        --without-opt-lib=${opt-dir}/lib
        --with-make-prog
        --without-make-prog
        --srcdir=.
        --curdir
        --ruby=/home/user/.rbenv/versions/2.6.5/bin/$(RUBY_BASE_NAME)

To see why this extension failed to compile, please check the mkmf.log which can be found here:

  /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

extconf failed, exit code 1

Gem 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.
Results 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？