On Thursday, July 11, 2013 3:18:53 PM UTC+2, Paul Mercat wrote:
>
> In the Sage shell, the command
>
> pkg-config --variable pc_path pkg-config
>
> gives nothing.
> And the command
>
> export PKG_CONFIG_DEBUG_SPEW=yes;
> pkg-config --libs --cflags libpng
>
> gives
>
> PKG_CONFIG_DEBUG_SPEW variable enabling debug spew
> Adding directory '/Users/mercat/sage-5.10/local/lib/pkgconfig' from
> PKG_CONFIG_PATH
> Adding directory '/usr/local/lib/pkgconfig' from PKG_CONFIG_PATH
> Adding directory '/usr/local/share/pkgconfig' from PKG_CONFIG_PATH
> Global variable definition 'pc_top_builddir' = '$(top_builddir)'
> Option --libs seen
> Option --cflags seen
> Error printing enabled by default due to use of --version, --libs,
> --cflags, --libs-only-l, --libs-only-L, --libs-only-other, --cflags-only-I,
> --cflags-only-other or --list. Value of --silence-errors: 0
> Error printing enabled
> Adding virtual 'pkg-config' package to list of known packages
> Scanning directory '/Users/mercat/sage-5.10/local/lib/pkgconfig'
> Ignoring file '.' in search directory; not a .pc file
> Ignoring file '..' in search directory; not a .pc file
> File 'bdw-gc.pc' appears to be a .pc file
> Will find package 'bdw-gc' in file
> '/Users/mercat/sage-5.10/local/lib/pkgconfig/bdw-gc.pc'
> File 'freetype2.pc' appears to be a .pc file
> Will find package 'freetype2' in file
> '/Users/mercat/sage-5.10/local/lib/pkgconfig/freetype2.pc'
> File 'gsl.pc' appears to be a .pc file
> Will find package 'gsl' in file
> '/Users/mercat/sage-5.10/local/lib/pkgconfig/gsl.pc'
> File 'libpng.pc' appears to be a .pc file
> Will find package 'libpng' in file
> '/Users/mercat/sage-5.10/local/lib/pkgconfig/libpng.pc'
> File 'libpng12.pc' appears to be a .pc file
> Will find package 'libpng12' in file
> '/Users/mercat/sage-5.10/local/lib/pkgconfig/libpng12.pc'
> File 'm4ri.pc' appears to be a .pc file
> Will find package 'm4ri' in file
> '/Users/mercat/sage-5.10/local/lib/pkgconfig/m4ri.pc'
> File 'pynac.pc' appears to be a .pc file
> Will find package 'pynac' in file
> '/Users/mercat/sage-5.10/local/lib/pkgconfig/pynac.pc'
> File 'python-2.7.pc' appears to be a .pc file
> Will find package 'python-2.7' in file
> '/Users/mercat/sage-5.10/local/lib/pkgconfig/python-2.7.pc'
> File 'python.pc' appears to be a .pc file
> Will find package 'python' in file
> '/Users/mercat/sage-5.10/local/lib/pkgconfig/python.pc'
> File 'python2.pc' appears to be a .pc file
> Will find package 'python2' in file
> '/Users/mercat/sage-5.10/local/lib/pkgconfig/python2.pc'
> File 'sqlite3.pc' appears to be a .pc file
> Will find package 'sqlite3' in file
> '/Users/mercat/sage-5.10/local/lib/pkgconfig/sqlite3.pc'
> File 'zlib.pc' appears to be a .pc file
> Will find package 'zlib' in file
> '/Users/mercat/sage-5.10/local/lib/pkgconfig/zlib.pc'
> Scanning directory '/usr/local/lib/pkgconfig'
> Ignoring file '.' in search directory; not a .pc file
> Ignoring file '..' in search directory; not a .pc file
> File 'ImageMagick++-Q16.pc' appears to be a .pc file
> Will find package 'ImageMagick++-Q16' in file
> '/usr/local/lib/pkgconfig/ImageMagick++-Q16.pc'
> File 'ImageMagick++.pc' appears to be a .pc file
> Will find package 'ImageMagick++' in file
> '/usr/local/lib/pkgconfig/ImageMagick++.pc'
> File 'ImageMagick-Q16.pc' appears to be a .pc file
> Will find package 'ImageMagick-Q16' in file
> '/usr/local/lib/pkgconfig/ImageMagick-Q16.pc'
> File 'ImageMagick.pc' appears to be a .pc file
> Will find package 'ImageMagick' in file
> '/usr/local/lib/pkgconfig/ImageMagick.pc'
> File 'libavcodec.pc' appears to be a .pc file
> Will find package 'libavcodec' in file
> '/usr/local/lib/pkgconfig/libavcodec.pc'
> File 'libavdevice.pc' appears to be a .pc file
> Will find package 'libavdevice' in file
> '/usr/local/lib/pkgconfig/libavdevice.pc'
> File 'libavfilter.pc' appears to be a .pc file
> Will find package 'libavfilter' in file
> '/usr/local/lib/pkgconfig/libavfilter.pc'
> File 'libavformat.pc' appears to be a .pc file
> Will find package 'libavformat' in file
> '/usr/local/lib/pkgconfig/libavformat.pc'
> File 'libavutil.pc' appears to be a .pc file
> Will find package 'libavutil' in file
> '/usr/local/lib/pkgconfig/libavutil.pc'
> File 'libcdt.pc' appears to be a .pc file
> Will find package 'libcdt' in file '/usr/local/lib/pkgconfig/libcdt.pc'
> File 'libcgraph.pc' appears to be a .pc file
> Will find package 'libcgraph' in file
> '/usr/local/lib/pkgconfig/libcgraph.pc'
> File 'libgraph.pc' appears to be a .pc file
> Will find package 'libgraph' in file '/usr/local/lib/pkgconfig/libgraph.pc'
> File 'libgvc.pc' appears to be a .pc file
> Will find package 'libgvc' in file '/usr/local/lib/pkgconfig/libgvc.pc'
> File 'libgvpr.pc' appears to be a .pc file
> Will find package 'libgvpr' in file '/usr/local/lib/pkgconfig/libgvpr.pc'
> File 'libpathplan.pc' appears to be a .pc file
> Will find package 'libpathplan' in file
> '/usr/local/lib/pkgconfig/libpathplan.pc'
> File 'libswresample.pc' appears to be a .pc file
> Will find package 'libswresample' in file
> '/usr/local/lib/pkgconfig/libswresample.pc'
> File 'libswscale.pc' appears to be a .pc file
> Will find package 'libswscale' in file
> '/usr/local/lib/pkgconfig/libswscale.pc'
> File 'libxdot.pc' appears to be a .pc file
> Will find package 'libxdot' in file '/usr/local/lib/pkgconfig/libxdot.pc'
> File 'Magick++-Q16.pc' appears to be a .pc file
> Will find package 'Magick++-Q16' in file
> '/usr/local/lib/pkgconfig/Magick++-Q16.pc'
> File 'Magick++.pc' appears to be a .pc file
> Will find package 'Magick++' in file '/usr/local/lib/pkgconfig/Magick++.pc'
> File 'MagickCore-Q16.pc' appears to be a .pc file
> Will find package 'MagickCore-Q16' in file
> '/usr/local/lib/pkgconfig/MagickCore-Q16.pc'
> File 'MagickCore.pc' appears to be a .pc file
> Will find package 'MagickCore' in file
> '/usr/local/lib/pkgconfig/MagickCore.pc'
> File 'MagickWand-Q16.pc' appears to be a .pc file
> Will find package 'MagickWand-Q16' in file
> '/usr/local/lib/pkgconfig/MagickWand-Q16.pc'
> File 'MagickWand.pc' appears to be a .pc file
> Will find package 'MagickWand' in file
> '/usr/local/lib/pkgconfig/MagickWand.pc'
> File 'sdl.pc' appears to be a .pc file
> Will find package 'sdl' in file '/usr/local/lib/pkgconfig/sdl.pc'
> File 'SDL_image.pc' appears to be a .pc file
> Will find package 'SDL_image' in file
> '/usr/local/lib/pkgconfig/SDL_image.pc'
> File 'SDL_ttf.pc' appears to be a .pc file
> Will find package 'SDL_ttf' in file '/usr/local/lib/pkgconfig/SDL_ttf.pc'
> File 'sndfile.pc' appears to be a .pc file
> Will find package 'sndfile' in file '/usr/local/lib/pkgconfig/sndfile.pc'
> File 'Wand-Q16.pc' appears to be a .pc file
> Will find package 'Wand-Q16' in file '/usr/local/lib/pkgconfig/Wand-Q16.pc'
> File 'Wand.pc' appears to be a .pc file
> Will find package 'Wand' in file '/usr/local/lib/pkgconfig/Wand.pc'
> File 'zlib.pc' appears to be a .pc file
> File 'zlib.pc' ignored, we already know about package 'zlib'
> Cannot open directory '/usr/local/share/pkgconfig' in package search path:
> No such file or directory
> Looking for package 'libpng'
> Looking for package 'libpng-uninstalled'
> Reading 'libpng' from file
> '/Users/mercat/sage-5.10/local/lib/pkgconfig/libpng.pc'
> Parsing package file
> '/Users/mercat/sage-5.10/local/lib/pkgconfig/libpng.pc'
> line>SAGE_ROOT=/Users/mercat/sage-5.10
> Variable declaration, 'SAGE_ROOT' has value '/Users/mercat/sage-5.10'
> line>prefix=${SAGE_ROOT}/local
> Variable declaration, 'prefix' has value '/Users/mercat/sage-5.10/local'
> line>exec_prefix=${prefix}
> Variable declaration, 'exec_prefix' has value
> '/Users/mercat/sage-5.10/local'
> line>libdir=${SAGE_ROOT}/local/lib
> Variable declaration, 'libdir' has value
> '/Users/mercat/sage-5.10/local/lib'
> line>includedir=${prefix}/include/libpng12
> Variable declaration, 'includedir' has value
> '/Users/mercat/sage-5.10/local/include/libpng12'
> line>
> line>Name: libpng
> line>Description: Loads and saves PNG files
> line>Version: 1.2.35
> line>Libs: -L${libdir} -lpng12
> line>Libs.private: -lz
> Unknown keyword 'Libs.private' in
> '/Users/mercat/sage-5.10/local/lib/pkgconfig/libpng.pc'
> line>Cflags: -I${includedir}
> Path position of 'libpng' is 1
> Adding 'libpng' to list of known packages, returning as package 'libpng'
> original: libpng
> sorted: libpng
> original: libpng
> sorted: libpng
> original: libpng
> sorted: libpng
> original: libpng
> sorted: libpng
> -I/Users/mercat/sage-5.10/local/include/libpng12
> -L/Users/mercat/sage-5.10/local/lib -lpng12
>
> This looks fine...
(Last time you got nothing but in fact this was to be expected as you were
not in a sage shell.)
>
>
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