PKG_CONFIG_PATH变量，编译RRDtool时如何设置LDFLAGS和CPPFLAGS

时间：2013-05-03 12:35:27

标签： compilation

任务是在Red Hat衍生物上安装rrdtool，禁止使用yum或包。从源代码编译rrdtool的所有依赖项 单独的目录： /应用/运行/ sepatare_folder

所以我基本上看起来像这样：

ls
cairo        glib         pango        pixman
--
pwd
/apps/run

在./configure --prefix = / apps / run / rrdtool

期间编译四个依赖项后rrdtool抱怨

编译器无法找到库[因为我将它们拼凑到单独的文件夹而不是标准，因为这是禁止的]

所有警告如下：

Find 3rd-Party Libraries
checking dbi/dbi.h usability... no
checking dbi/dbi.h presence... no
checking for dbi/dbi.h... no
checking tcpd.h usability... no
checking tcpd.h presence... no
checking for tcpd.h... no
checking for cairo_font_options_create in -lcairo... no
checking for pkg-config... pkg-config
configure: WARNING:
----------------------------------------------------------------------------
* I found a copy of pkgconfig, but there is no cairo-png.pc file around.
  You may want to set the PKG_CONFIG_PATH variable to point to its
  location.
----------------------------------------------------------------------------

configure: WARNING:
----------------------------------------------------------------------------
* I could not find a working copy of cairo-png. Check config.log for hints on why
  this is the case. Maybe you need to set LDFLAGS and CPPFLAGS appropriately
  so that compiler and the linker can find libcairo and its header files. If
  you have not installed cairo-png, you can get it either from its original home on

     http://cairographics.org/releases/

  You can find also find an archive copy on

     http://oss.oetiker.ch/rrdtool/pub/libs

  The last tested version of cairo-png is 1.10.2.

       LIBS=-lm
   LDFLAGS=
  CPPFLAGS=

----------------------------------------------------------------------------

checking for cairo_svg_surface_create in -lcairo... no
checking for pkg-config... (cached) pkg-config
configure: WARNING:
----------------------------------------------------------------------------
* I found a copy of pkgconfig, but there is no cairo-svg.pc file around.
  You may want to set the PKG_CONFIG_PATH variable to point to its
  location.
----------------------------------------------------------------------------

configure: WARNING:
----------------------------------------------------------------------------
* I could not find a working copy of cairo-svg. Check config.log for hints on why
  this is the case. Maybe you need to set LDFLAGS and CPPFLAGS appropriately
  so that compiler and the linker can find libcairo and its header files. If
  you have not installed cairo-svg, you can get it either from its original home on

     http://cairographics.org/releases/

  You can find also find an archive copy on

     http://oss.oetiker.ch/rrdtool/pub/libs

  The last tested version of cairo-svg is 1.10.2.

       LIBS=-lm
   LDFLAGS=
  CPPFLAGS=

----------------------------------------------------------------------------

checking for cairo_pdf_surface_create in -lcairo... no
checking for pkg-config... (cached) pkg-config
configure: WARNING:
----------------------------------------------------------------------------
* I found a copy of pkgconfig, but there is no cairo-pdf.pc file around.
  You may want to set the PKG_CONFIG_PATH variable to point to its
  location.
----------------------------------------------------------------------------

configure: WARNING:
----------------------------------------------------------------------------
* I could not find a working copy of cairo-pdf. Check config.log for hints on why
  this is the case. Maybe you need to set LDFLAGS and CPPFLAGS appropriately
  so that compiler and the linker can find libcairo and its header files. If
  you have not installed cairo-pdf, you can get it either from its original home on

     http://cairographics.org/releases/

  You can find also find an archive copy on

     http://oss.oetiker.ch/rrdtool/pub/libs

  The last tested version of cairo-pdf is 1.10.2.

       LIBS=-lm
   LDFLAGS=
  CPPFLAGS=

----------------------------------------------------------------------------

checking for cairo_ps_surface_create in -lcairo... no
checking for pkg-config... (cached) pkg-config
configure: WARNING:
----------------------------------------------------------------------------
* I found a copy of pkgconfig, but there is no cairo-ps.pc file around.
  You may want to set the PKG_CONFIG_PATH variable to point to its
  location.
----------------------------------------------------------------------------

configure: WARNING:
----------------------------------------------------------------------------
* I could not find a working copy of cairo-ps. Check config.log for hints on why
  this is the case. Maybe you need to set LDFLAGS and CPPFLAGS appropriately
  so that compiler and the linker can find libcairo and its header files. If
  you have not installed cairo-ps, you can get it either from its original home on

     http://cairographics.org/releases/

  You can find also find an archive copy on

     http://oss.oetiker.ch/rrdtool/pub/libs

  The last tested version of cairo-ps is 1.10.2.

       LIBS=-lm
   LDFLAGS=
  CPPFLAGS=

----------------------------------------------------------------------------

checking for pango_cairo_context_set_font_options in -lpangocairo-1.0... no
checking for pkg-config... (cached) pkg-config
configure: WARNING:
----------------------------------------------------------------------------
* I found a copy of pkgconfig, but there is no pangocairo.pc file around.
  You may want to set the PKG_CONFIG_PATH variable to point to its
  location.
----------------------------------------------------------------------------

configure: WARNING:
----------------------------------------------------------------------------
* I could not find a working copy of pangocairo. Check config.log for hints on why
  this is the case. Maybe you need to set LDFLAGS and CPPFLAGS appropriately
  so that compiler and the linker can find libpangocairo-1.0 and its header files. If
  you have not installed pangocairo, you can get it either from its original home on

     http://ftp.gnome.org/pub/GNOME/sources/pango/1.28

  You can find also find an archive copy on

     http://oss.oetiker.ch/rrdtool/pub/libs

  The last tested version of pangocairo is 1.28.4.

       LIBS=-lm
   LDFLAGS=
  CPPFLAGS=

----------------------------------------------------------------------------

checking for glib_check_version in -lglib-2.0... no
checking for pkg-config... (cached) pkg-config
configure: WARNING:
----------------------------------------------------------------------------
* I found a copy of pkgconfig, but there is no glib-2.0.pc file around.
  You may want to set the PKG_CONFIG_PATH variable to point to its
  location.
----------------------------------------------------------------------------

configure: WARNING:
----------------------------------------------------------------------------
* I could not find a working copy of **glib-2.0**. Check config.log for hints on why
  this is the case. Maybe you need to set LDFLAGS and CPPFLAGS appropriately
  so that compiler and the linker can find libglib-2.0 and its header files. If
  you have not installed glib-2.0, you can get it either from its original home on

     ftp://ftp.gtk.org/pub/glib/2.28/

  You can find also find an archive copy on

     http://oss.oetiker.ch/rrdtool/pub/libs

  The last tested version of glib-2.0 is 2.28.7.

       LIBS=-lm
   LDFLAGS=
  CPPFLAGS=

----------------------------------------------------------------------------

checking for xmlParseFile in -lxml2... yes
checking libxml/parser.h usability... yes
checking libxml/parser.h presence... yes
checking for libxml/parser.h... yes
configure: error: Please fix the library issues listed above and try again.

我确实拥有所有缺少的库，但需要告诉编译器如何找到它们是一件很大的痛苦。例如，缺少 glib-2.0 ：

pwd
/apps/run/glib/lib
ls -la
total 2300
drwxr-xr-x 4 root root    4096 May  3 08:18 .
drwxr-xr-x 6 root root    4096 May  3 08:17 ..
drwxr-xr-x 3 root root    4096 May  3 08:17 glib-2.0
-rwxr-xr-x 1 root root     928 May  3 08:18 libgio-2.0.la
lrwxrwxrwx 1 root root      19 May  3 08:18 libgio-2.0.so -> libgio-2.0.so.0.0.0
lrwxrwxrwx 1 root root      19 May  3 08:18 libgio-2.0.so.0 -> libgio-2.0.so.0.0.0
-rwxr-xr-x 1 root root  712052 May  3 08:18 libgio-2.0.so.0.0.0
-rwxr-xr-x 1 root root     830 May  3 08:17 libglib-2.0.la
lrwxrwxrwx 1 root root      23 May  3 08:17 libglib-2.0.so -> libglib-2.0.so.0.1504.0
lrwxrwxrwx 1 root root      23 May  3 08:17 libglib-2.0.so.0 -> libglib-2.0.so.0.1504.0
-rwxr-xr-x 1 root root 1168721 May  3 08:17 libglib-2.0.so.0.1504.0
-rwxr-xr-x 1 root root     887 May  3 08:18 libgmodule-2.0.la
lrwxrwxrwx 1 root root      26 May  3 08:18 libgmodule-2.0.so -> libgmodule-2.0.so.0.1504.0
lrwxrwxrwx 1 root root      26 May  3 08:18 libgmodule-2.0.so.0 -> libgmodule-2.0.so.0.1504.0
-rwxr-xr-x 1 root root   16107 May  3 08:18 libgmodule-2.0.so.0.1504.0
-rwxr-xr-x 1 root root     882 May  3 08:18 libgobject-2.0.la
lrwxrwxrwx 1 root root      26 May  3 08:18 libgobject-2.0.so -> libgobject-2.0.so.0.1504.0
lrwxrwxrwx 1 root root      26 May  3 08:18 libgobject-2.0.so.0 -> libgobject-2.0.so.0.1504.0
-rwxr-xr-x 1 root root  378273 May  3 08:18 libgobject-2.0.so.0.1504.0
-rwxr-xr-x 1 root root     897 May  3 08:18 libgthread-2.0.la
lrwxrwxrwx 1 root root      26 May  3 08:18 libgthread-2.0.so -> libgthread-2.0.so.0.1504.0
lrwxrwxrwx 1 root root      26 May  3 08:18 libgthread-2.0.so.0 -> libgthread-2.0.so.0.1504.0
-rwxr-xr-x 1 root root   24126 May  3 08:18 libgthread-2.0.so.0.1504.0
drwxr-xr-x 2 root root    4096 May  3 08:17 pkgconfig

有很好的建议但不幸的是我无法理解它们：

  
      
  • 您可能希望将PKG_CONFIG_PATH变量设置为指向其位置。
    •   
  • 也许您需要适当地设置LDFLAGS和CPPFLAGS，以便编译器和链接器可以找到libglib-2.0及其头文件。
    •   

不熟练的是设置 PKG_CONFIG_PATH 以包含多个必需库的目录[例如glib-2.0.pc，cairo-ps，cairo-png，..] 可以被找寻到。试过这样的事情：

export LD_LIBRARY_PATH=/apps/run/glib/lib;export LD_LIBRARY_PATH=/apps/run//apps/run/cairo/lib

但没有工作。 也不确定这是否足够，因为有关于适当地设置 LDFLAGS 和 CPPFLAGS 的建议。 试过这个：

export LDFLAGS='-L/apps/run/cairo/libs'

但它似乎不正确。或者shloud我指定LDFLAGS和CPPFLAGS作为./configure的一部分？ 语法应该是什么？请建议，寻找一般的howtos但不能适应我的环境。 THX

1 个答案:

答案 0 :(得分：8)

设置路径，例如LD_LIBRARY_PATH的{​​{1}}，您应该使用一个PKG_CONFIG_PATH，并使用export分隔路径。例如：

:

相互之后运行多个导出，就像您为export PKG_CONFIG_PATH=/my/path:/my/other/path:/yet/another/path所示，将覆盖它们，即只保留最后一个。一般来说，总是包含当前值是明智的（如果它是空的就可以了）：

LD_LIBRARY_PATH

尝试在系统上找到export PKG_CONFIG_PATH=/my/path:/my/other/path:/yet/another/path:$PKG_CONFIG_PATH文件，然后将cairo-png.pc设置为其中包含的目录。

不应该使用PKG_CONFIG_PATH的{​​{1}}，pkgconfig LD_LIBRARY_PATH文件应该为您处理。

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