I got this error in installing a numerical code figuring out mpich2 package:

checking pkg-config is at least version 0.9.0... yes
checking for MPICH2... configure: error: Package requirements (mpich2-ch3) were not met:

Variable 'exec_prefix' not defined in '/usr/local/lib/pkgconfig/mpich2-ch3.pc'

Consider adjusting the PKG_CONFIG_PATH environment variable if you
installed software in a non-standard prefix.

Alternatively, you may set the environment variables MPICH2_CFLAGS
and MPICH2_LIBS to avoid the need to call pkg-config.
See the pkg-config man page for more details.

I have looked to the last posts on PKG_CONFIG_PATH:
I add the PKG_CONFIG_PATH with

export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig
export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig:$PKG_CONFIG_PATH
to find and check the path, I write

echo $PKG_CONFIG_PATH
/usr/local/lib/pkgconfig:/usr/local/lib/pkgconfig

I also type at the end of the .bashrc file the following line
export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig

when I rerun
./configure
I got the same error, What am I missing here??

> Variable 'exec_prefix' not defined in '/usr/local/lib/pkgconfig/mpich2-ch3.pc'

Check this file, if it has 'exec_prefix' in it or not. Typical *.pc files look like this:

My mpich2-ch3.pc file looks like this:

# this gives access to the mpich2 header files

Name: mpich2
Description: MPICH2 is an implementation of the Message-Passing Interface (MPI). The goals of MPICH2 are to provide an MPI implementation for important platforms, including clusters, SMPs, and massively parallel processors. It also provides a vehicle for MPI implementation research and for developing new and better parallel programming environments.
Version: 1.2.1p1
Requires:
Libs: -L${exec_prefix}/lib -lmpich -lmpichcxx -lopa -lpthread
Cflags: -O2 -I${prefix}/include -DMPICH_IGNORE_CXX_SEEK

I am sorry what I have to do now, should I put the path next to {exec_prefix}/usr/local/lib/pkgconfig (like this??)

Please help me

1. please use [code] and [/code] tags
2. is this file 'official', or you hacked it manually? Anyway, you can insert an exec_prefix line:

thank you I solved this problem, but I got a new one,

giving the command $sh install-titan.sh
I got this as an error:


make all-recursive
make[1]: Entering directory `/home/bob/titan2d/titan-3.0.0'
Making all in src
make[2]: Entering directory `/home/bob/titan2d/titan-3.0.0/src'
Making all in header
make[3]: Entering directory `/home/bob/titan2d/titan-3.0.0/src/header'
make[3]: Nothing to be done for `all'.
make[3]: Leaving directory `/home/bob/titan2d/titan-3.0.0/src/header'
Making all in gisapi
make[3]: Entering directory `/home/bob/titan2d/titan-3.0.0/src/gisapi'
if /usr/local/bin/mpiCC -DHAVE_CONFIG_H -I. -I. -I../.. -O2 -DMPICH_IGNORE_CXX_SEEK -I/usr/local/lib/pkgconfig/include -I/usr/include -DH5_USE_16_API -DOMPI_IGNORE_CXX_SEEK -MT GdalApi.o -MD -MP -MF ".deps/GdalApi.Tpo" -c -o GdalApi.o GdalApi.cc; \
then mv -f ".deps/GdalApi.Tpo" ".deps/GdalApi.Po"; else rm -f ".deps/GdalApi.Tpo"; exit 1; fi
GdalApi.cc:5:23: fatal error: gdal_priv.h: No such file or directory
compilation terminated.
Makefile:273: recipe for target `GdalApi.o' failed
make[3]: *** [GdalApi.o] Error 1
make[3]: Leaving directory `/home/bob/titan2d/titan-3.0.0/src/gisapi'
Makefile:209: recipe for target `all-recursive' failed
make[2]: *** [all-recursive] Error 1
make[2]: Leaving directory `/home/bob/titan2d/titan-3.0.0/src'
Makefile:249: recipe for target `all-recursive' failed
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/home/bob/titan2d/titan-3.0.0'
Makefile:187: recipe for target `all' failed
make: *** [all] Error 2


Sorry for this, do you I to solve this problem?

install the gdal software that has that header

my install of gdal is in "FWTools-x86_64-3.1.0" so it might be different than yours

???/???/FWTools-x86_64-3.1.0/usr/include/gdal_priv.h

that include folder should be set by the gdal install scripts
( i use the fwtools script )
how did you install it ?

if you do have the header in the include folder
export it's location

I am sorry I am using cygwin in windiws 7, and making the cygcheck for all my packages installed, I have not found the gdal, in cygwin, the installation update is made through the setup. I find this web site for gdal mapping tools: http://lists.maptools.org/pipermail/...ay/002010.html,
What do you think? does it work on cigwin?

I got this error in installing a numerical code figuring out mpich2 package:

checking pkg-config is at least version 0.9.0... yes
checking for MPICH2... configure: error: Package requirements (mpich2-ch3) were not met:

No package 'mpich2-ch3' found

Consider adjusting the PKG_CONFIG_PATH environment variable if you
installed software in a non-standard prefix.



when I rerun
./configure
I got the same error?

Oh, my mind-reading powers left me... Please give an URL to the software you are trying to compile.

Post #8, @GRF93.

No package 'mpich2-ch3' found : `package' means "package config file" :
Like » no file /usr/lib/mpich2-ch3.pc «

* Sorry, there is no ``mpich2-ch3.pc´´ available for any Ubuntu version.
( $ apt-file search mpich2-ch3.pc ).

May be "/usr/lib/<arch>-linux-gnu/pkgconfig/mpich.pc" can be used ?
I.e. install mpich : $ sudo apt-get install libmpich-dev
. http://packages.ubuntu.com/search?ke...searchon=names
. http://packages.ubuntu.com/trusty/i3...h-dev/filelist

-

ok I understand, but which version of ubuntu is compatible with this package?
The download link is:
http://www.mcs.anl.gov/research/proj...hp?s=downloads
MPICH2-1.5

Thanks in advance

Ref. # 11 .

The package mpich2-1.5.tar.gz from
http://www.mcs.anl.gov/research/proj...hp?s=downloads
.. is source code, and can be installed in any Ubuntu version with :
$ ./configure --prefix=/usr/ --enable-threads=default && make && sudo make install

*** You can watch all the "200" options with $ ./configure --help

?? Any particular reason that you want "1.5",
and not the default Ubuntu "libmpich-dev-<version>" ?

? Which application are you trying to build, with mpich ?

-