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.\"
.IX Title "GPT_BUILD_CONFIG 8"
.TH GPT_BUILD_CONFIG 8 "2012-04-30" "perl v5.14.2" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
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.nh
.SH "NAME"
gpt_build_config \- Returns a minimized list of ldflags from a list of globus packages and external libraries.
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
gpt_build_config \-src <source metadata file> \-f <globus_flavor_name> \-link [static|shared]
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
\&\fBgpt_build_config\fR creates a file in it's current directory named
gpt_build_temp.sh that contains a list of necessary flags assembled from 
the build environment metadata of the packages on which the source metadata 
depends.  
This scanning is done recursively to cover the entire dependency tree.
This script was initially inspired by the shell script gnome_config.
.SH "LINK ORDER"
.IX Header "LINK ORDER"
The flag list returned by \fBgpt_build_config\fR is assembled in
dependent order.  A dependency between two libraries occurs when one
library needs the symbols of another library in order to link
correctly.  For most linkers the library providing the symbols has to
be linked after the library that needs the symbols.  For
example, from the line:
.PP
.Vb 1
\&   \-L/opt/Xpm/lib \-lXpm \-L/usr/lib/X11 \-lXm \-lX
.Ve
.PP
\&\fBgpt_build_config\fR assumes that the library Xpm is dependent on Xm which in turn is dependent on X.  In addition, \fBgpt_build_config\fR assumes that Xpm is located in /opt/Xpm/lib and Xm and X are both located in /usr/lib/X11.
.SH "BUGS"
.IX Header "BUGS"
Circular dependencies between libraries are not supported.
.SH "AUTHOR"
.IX Header "AUTHOR"
Michael Bletzinger <mbletzin.ncsa.uiuc.edu> and Eric Blau
<eblau.ncsa.uiuc.edu>