python - 在 fedora 19 上从源代码构建 matplotlib，没有发现 freetype 头文件

Question

我在fedora 19系统上安装了matplotlib源码包，得到如下信息:

============================================================================
Edit setup.cfg to change the build options

BUILDING MATPLOTLIB
    matplotlib: yes [1.3.1]
        python: yes [2.7.6 (default, Jan  9 2014, 14:24:42)  [GCC
                4.8.1 20130603 (Red Hat 4.8.1-1)]]`
      platform: yes [linux2]

REQUIRED DEPENDENCIES AND EXTENSIONS
         numpy: yes [version 1.8.0]
      dateutil: yes [dateutil was not found. It is required for date
                     axis support. pip/easy_install may attempt to
                     install it after matplotlib.]
       tornado: yes [tornado was not found. It is required for the
                WebAgg backend. pip/easy_install may attempt to
                install it after matplotlib.]
     pyparsing: yes [pyparsing was not found. It is required for
                mathtext support. pip/easy_install may attempt to
                install it after matplotlib.]
         pycxx: yes [Couldn't import.  Using local copy.]
        libagg: yes [pkg-config information for 'libagg' could not
                be found. Using local copy.]
      freetype: no  [The C/C++ header for freetype2 (ftbuild.h)
                could not be found. You may need to install the
                development package.]
           png: yes [pkg-config information for 'libpng' could not
                be found. Using unknown version.]

OPTIONAL SUBPACKAGES
   sample_data: yes [installing]
      toolkits: yes [installing]
         tests: yes [using nose version 1.3.0]

OPTIONAL BACKEND EXTENSIONS
        macosx: no  [Mac OS-X only]
        qt4agg: no  [PyQt4 not found]
       gtk3agg: no  [Requires pygobject to be installed.]
     gtk3cairo: no  [Requires cairo to be installed.]
        gtkagg: no  [Requires pygtk.]
         tkagg: no  [TKAgg requires Tkinter.]
         wxagg: no  [requires wxPython]
           gtk: no  [The C/C++ header for gtk (gtk/gtk.h) could not
                be found.  You may need to install the development
                package.]
           agg: yes [installing]
         cairo: no  [cairo not found]
     windowing: no  [Microsoft Windows only]

OPTIONAL LATEX DEPENDENCIES
        dvipng: yes [version 1.14]
   ghostscript: yes [version 9.07]
         latex: no
       pdftops: yes [version 0.22.1]

============================================================================
                * The following required packages can not be built:
                * freetype

然而，在安装之前，我已经在默认目录下安装了freetype 2.5.2，即/usr/local。我在 /usr/local/include/freetype2 中找到了头文件 (ft2build.h)。 setupext.py也被检查，在class FreeType(SetupPackage)的代码部分，有

the default_include_dirs=
          ['freetype2','lib/freetype2/include','lib/freetype2/include/freetype2',]

现在，我不知道为什么软件包找不到已安装的 freetype。有人有什么想法吗？感谢您的帮助!!!

Answer 1

我遇到了完全相同的问题。我在 setupext.py 的 self._check_for_pkg_config() 中用我的 ft2build.h 的整个路径(由 tcaswell 建议)简单地替换了 'ft2build.h' 就解决了这个问题。