Problems installing matplotlib

Hi,

I have problems installing matplotlib 0.90.1. An error occurs when doing “python setup.py build”:

/usr/include/features.h:150:1: warning: this is the location of the previous definition
src/_ns_backend_agg.cpp: In member function `Py::Object RendererAgg::write_png(const Py::Tuple&)’:

src/_ns_backend_agg.cpp:2040: error: png_structp' undeclared (first use this function) src/_ns_backend_agg.cpp:2040: error: (Each undeclared identifier is reported only once for each function it appears in.) src/_ns_backend_agg.cpp:2040: error: expected;’ before “png_ptr”
src/_ns_backend_agg.cpp:2041: error: png_infop' undeclared (first use this function) src/_ns_backend_agg.cpp:2041: error: expected;’ before “info_ptr”

src/_ns_backend_agg.cpp:2042: error: aggregate png_color_8_struct sig_bit' has incomplete type and cannot be defined src/_ns_backend_agg.cpp:2043: error:png_uint_32’ undeclared (first use this function)
src/_ns_backend_agg.cpp:2043: error: expected ;' before "row" src/_ns_backend_agg.cpp:2045: error:png_bytep’ undeclared (first use this function)
src/_ns_backend_agg.cpp:2045: error: `row_pointers’ undeclared (first use this function)

src/_ns_backend_agg.cpp:2045: error: png_bytep' has not been declared src/_ns_backend_agg.cpp:2046: error:row’ undeclared (first use this function)
src/_ns_backend_agg.cpp:2057: error: `png_ptr’ undeclared (first use this function)

src/_ns_backend_agg.cpp:2057: error: PNG_LIBPNG_VER_STRING' undeclared (first use this function) src/_ns_backend_agg.cpp:2057: error:png_create_write_struct’ undeclared (first use this function)
src/_ns_backend_agg.cpp:2064: error: `info_ptr’ undeclared (first use this function)

src/_ns_backend_agg.cpp:2064: error: png_create_info_struct' undeclared (first use this function) src/_ns_backend_agg.cpp:2067: error:png_destroy_write_struct’ undeclared (first use this function)
src/_ns_backend_agg.cpp:2079: error: `png_init_io’ undeclared (first use this function)

src/_ns_backend_agg.cpp:2082: error: PNG_COLOR_TYPE_RGB_ALPHA' undeclared (first use this function) src/_ns_backend_agg.cpp:2082: error:PNG_INTERLACE_NONE’ undeclared (first use this function)
src/_ns_backend_agg.cpp:2083: error: `PNG_COMPRESSION_TYPE_BASE’ undeclared (first use this function)

src/_ns_backend_agg.cpp:2083: error: PNG_FILTER_TYPE_BASE' undeclared (first use this function) src/_ns_backend_agg.cpp:2083: error:png_set_IHDR’ undeclared (first use this function)
src/_ns_backend_agg.cpp:2092: error: `png_set_sBIT’ undeclared (first use this function)

src/_ns_backend_agg.cpp:2094: error: png_write_info' undeclared (first use this function) src/_ns_backend_agg.cpp:2095: error:png_write_image’ undeclared (first use this function)
src/_ns_backend_agg.cpp:2096: error: `png_write_end’ undeclared (first use this function)

error: command ‘gcc’ failed with exit status 1

Any ideas what I can do?
Also, how to install matplotlib in an other directory? I tried:

python setup.py --prefix=/home/Install install
and
python setup.py install --prefix=/home/Install

but both commands did not work, although it is written I shall use the ‘–prefix’ argument to specify a different directory !?!

Any ideas?

Thanks
Alex

Hi Alexander,

Hi,

I have problems installing matplotlib 0.90.1. An error occurs when doing
"python setup.py build":

/usr/include/features.h:150:1: warning: this is the location of the previous
definition
src/_ns_backend_agg.cpp: In member function `Py::Object
RendererAgg::write_png(const Py::Tuple&)':
src/_ns_backend_agg.cpp:2040: error: `png_structp' undeclared (first use
this function)
src/_ns_backend_agg.cpp:2040: error: (Each undeclared identifier is reported
only once for each function it appears in.)
src/_ns_backend_agg.cpp:2040: error: expected `;' before "png_ptr"
src/_ns_backend_agg.cpp:2041: error: `png_infop' undeclared (first use this
function)
src/_ns_backend_agg.cpp:2041: error: expected `;' before "info_ptr"
src/_ns_backend_agg.cpp:2042: error: aggregate `png_color_8_struct sig_bit'
has incomplete type and cannot be defined
src/_ns_backend_agg.cpp:2043: error: `png_uint_32' undeclared (first use
this function)
src/_ns_backend_agg.cpp:2043: error: expected `;' before "row"
src/_ns_backend_agg.cpp:2045: error: `png_bytep' undeclared (first use this
function)
src/_ns_backend_agg.cpp:2045: error: `row_pointers' undeclared (first use
this function)
src/_ns_backend_agg.cpp:2045: error: `png_bytep' has not been declared
src/_ns_backend_agg.cpp:2046: error: `row' undeclared (first use this
function)
src/_ns_backend_agg.cpp:2057: error: `png_ptr' undeclared (first use this
function)
src/_ns_backend_agg.cpp:2057: error: `PNG_LIBPNG_VER_STRING' undeclared
(first use this function)
src/_ns_backend_agg.cpp:2057: error: `png_create_write_struct' undeclared
(first use this function)
src/_ns_backend_agg.cpp:2064: error: `info_ptr' undeclared (first use this
function)
src/_ns_backend_agg.cpp:2064: error: `png_create_info_struct' undeclared
(first use this function)
src/_ns_backend_agg.cpp:2067: error: `png_destroy_write_struct' undeclared
(first use this function)
src/_ns_backend_agg.cpp:2079: error: `png_init_io' undeclared (first use
this function)
src/_ns_backend_agg.cpp:2082: error: `PNG_COLOR_TYPE_RGB_ALPHA' undeclared
(first use this function)
src/_ns_backend_agg.cpp:2082: error: `PNG_INTERLACE_NONE' undeclared (first
use this function)
src/_ns_backend_agg.cpp:2083: error: `PNG_COMPRESSION_TYPE_BASE' undeclared
(first use this function)
src/_ns_backend_agg.cpp:2083: error: `PNG_FILTER_TYPE_BASE' undeclared
(first use this function)
src/_ns_backend_agg.cpp:2083: error: `png_set_IHDR' undeclared (first use
this function)
src/_ns_backend_agg.cpp:2092: error: `png_set_sBIT' undeclared (first use
this function)
src/_ns_backend_agg.cpp:2094: error: `png_write_info' undeclared (first use
this function)
src/_ns_backend_agg.cpp:2095: error: `png_write_image' undeclared (first use
this function)
src/_ns_backend_agg.cpp:2096: error: `png_write_end' undeclared (first use
this function)
error: command 'gcc' failed with exit status 1

You probably need to install the header files for libpng. On my
Ubuntu system the package name is libpng12-dev

Any ideas what I can do?
Also, how to install matplotlib in an other directory? I tried:
> python setup.py --prefix=/home/Install install
and
>python setup.py install --prefix=/home/Install

but both commands did not work, although it is written I shall use the
'--prefix' argument to specify a different directory !?!

Any ideas?

Is /home/Install on your Python search path (
http://docs.python.org/inst/search-path.html )?

HTH,
Edin

···

On 6/28/07, Alexander Dietz <Alexander.Dietz@...1663...> wrote: