REFINE QGIS MAPSERVER CONFIGURATION; HISTO PATCH
- Drop the crude Lighty configuration - Use Rewrite in Apache configuration and improve README - Add histogram patch, marked to be backported
This commit is contained in:
Volker Fröhlich
parent
cdf98c4b72
commit
100f02a117
36
qgis-1.7.0-histogram.patch
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36
qgis-1.7.0-histogram.patch
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@ -0,0 +1,36 @@
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diff --git a/src/core/raster/qgsrasterlayer.cpp b/src/core/raster/qgsrasterlayer.cpp
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index 32455e8..92c056c 100644
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--- a/src/core/raster/qgsrasterlayer.cpp
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+++ b/src/core/raster/qgsrasterlayer.cpp
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@@ -2345,7 +2345,7 @@ void QgsRasterLayer::setDataProvider( QString const & provider,
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myRasterBandStats.bandName = mDataProvider->generateBandName( i );
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myRasterBandStats.bandNumber = i;
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myRasterBandStats.statsGathered = false;
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- myRasterBandStats.histogramVector = new QgsRasterBandStats::HistogramVector();
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+ myRasterBandStats.histogramVector->clear();
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//Store the default color table
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//readColorTable( i, &myRasterBandStats.colorTable );
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QList<QgsColorRampShader::ColorRampItem> ct;
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diff --git a/src/providers/gdal/qgsgdalprovider.cpp b/src/providers/gdal/qgsgdalprovider.cpp
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index 51fb786..57d1851 100644
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--- a/src/providers/gdal/qgsgdalprovider.cpp
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+++ b/src/providers/gdal/qgsgdalprovider.cpp
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@@ -1320,8 +1320,16 @@ void QgsGdalProvider::populateHistogram( int theBandNo, QgsRasterBandStats & t
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for ( int myBin = 0; myBin < theBinCount; myBin++ )
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{
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- theBandStats.histogramVector->push_back( myHistogramArray[myBin] );
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- QgsDebugMsg( "Added " + QString::number( myHistogramArray[myBin] ) + " to histogram vector" );
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+ if ( myHistogramArray[myBin] < 0 ) //can't have less than 0 pixels of any value
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+ {
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+ theBandStats.histogramVector->push_back( 0 );
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+ QgsDebugMsg( "Added 0 to histogram vector as freq was negative!" );
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+ }
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+ else
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+ {
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+ theBandStats.histogramVector->push_back( myHistogramArray[myBin] );
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+ QgsDebugMsg( "Added " + QString::number( myHistogramArray[myBin] ) + " to histogram vector" );
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+ }
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}
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}
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@ -1,35 +1,60 @@
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QGIS Mapserver originally has two configuration files, located in the
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same directory as the FCGI binary:
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==================================================
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QGIS Mapserver (might be renamed to "QGIS server")
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==================================================
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QGIS Mapserver allows you to publish your QGIS projects as Web Map
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Services (WMS). Simply layout your map in QGIS. The WMS will look
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exactly the same, because QGIS Mapserver uses the same libraries for
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rendering, as the desktop application does.
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A sample configuration file for Httpd is installed under
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/etc/httpd/conf.d/qgis-mapserver.conf.
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This configuration expects QGIS project files under /var/www/wms. To
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use it, reload the Httpd configuration and place the files you want to
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publish in this directory.
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A getCapabilities request looks like this:
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http://localhost/wms/my_qgis_project?SERVICE=WMS&REQUEST=GetCapabilities&VERSION=1.3.0
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QGIS project is "/var/www/wms/my_qgis_project.qgs". The sample
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configuration automatically adds the project file extension for you.
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The actual data can stay where it is. Make sure QGIS Mapserver can
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access the project file and don't forget to let Httpd reload its
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configuration before sending your requests!
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Please fill in the metadata tab for your QGIS project.
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You can easily test your WMS by adding it as a WMS layer in QGIS.
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==================================================
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The traditional QGIS Mapserver configuration is less comfortable and
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I don't encourage it, unless you have a good reason to use it:
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This approach only allows for a single map service.
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It uses two configuration files, that must be located in the same
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directory as the FCGI binary:
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- admin.sld
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- wms_metadata.xml
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The binary only accepts them, when they are located in the same directory.
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"admin.sld" uses extended SLD syntax (Style Layer Descriptor) to
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describe symbolization of data. It's more comfortable though, to
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layout your map in QGIS and just use a .qgs (QGIS project) to describe
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your map. This approach also allows for multiple map services, because
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the Mapserver accepts the path to a QGIS project as a HTTP Get
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parameter.
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describe symbolization of data.
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A getCapabilities request looks like this, if you use the supplied
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sample configuration:
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http://localhost/qgis/qgis_mapserv.fcgi?MAP=/var/www/html/my_first_map.qgs&SERVICE=WMS&VERSION=1.3.0&REQUEST=GetCapabilities
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/var/www/html/my_first_map.qgs is the assumed location of your QGIS
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project file. The actual data can stay where it is. Make sure QGIS
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Mapserver can access the project file and don't forget to let Httpd
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reload its configuration before sending your requests!
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"wms_metadata.xml" supplies metadata for your WMS. If you serve different
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projects, metadata may vary, so that file won't work for you. Try to fill
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in on the metadata tab of your QGIS project. It is not that complete
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though, but enhancement is planned, Marco Hugentobler said.
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"wms_metadata.xml" supplies metadata for your WMS. You may also use this
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file with the kind of configuration mentioned on top. But if you want to
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serve different projects, and metadata varies between them, that file
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won't work for you. Please see above for how to define project specific
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metadata!
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Both configuration files are included as documentation.
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==================================================
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Further information: http://karlinapp.ethz.ch/qgis_wms
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Volker Fröhlich
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@ -1,19 +1,16 @@
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# SAMPLE CONFIG SNIPPETS FOR APACHE WEB SERVER
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# Last Modified: 11-26-2005
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#
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# This file contains examples of entries that need
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# to be incorporated into your Apache web server
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# configuration file. Customize the paths, etc. as
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# needed to fit your system.
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# This configuration is intended as an example.
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# It is not meant for productive use.
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ScriptAlias /qgis/ "/usr/libexec/qgis"
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RewriteEngine on
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RewriteRule ^/wms/(.+)$ /qgis/qgis_mapserv.fcgi?map=/var/www/wms/$1.qgs [QSA,PT]
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ScriptAlias /qgis/ "/usr/libexec/qgis/"
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<Directory "/usr/libexec/qgis/">
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Options ExecCGI
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AllowOverride None
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Order allow,deny
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Allow from all
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Options FollowSymLinks
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Order deny,allow
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Deny from all
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Allow from 127.0.0.1
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</Directory>
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@ -1,12 +0,0 @@
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fastcgi.server = ( "/maps" =>
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( "localhost" =>
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(
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"check-local" => "disable",
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"bin-path" => "/usr/libexec/qgis/qgis_mapserv.fcgi",
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"socket" => "/var/run/lighttpd/qgis-fastcgi.socket",
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"max-load-per-proc" => 4,
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)
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)
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)
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#"socket" => "/tmp/mapserver-fastcgi.socket",
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43
qgis.spec
43
qgis.spec
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@ -9,7 +9,7 @@
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Name: qgis
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Version: 1.7.0
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Release: 1%{?dist}
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Release: 3%{?dist}
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Summary: A user friendly Open Source Geographic Information System
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Group: Applications/Engineering
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@ -20,7 +20,6 @@ Source1: %{name}.desktop
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# Sample configuration files for QGIS mapserver
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Source2: %{name}-mapserver-httpd.conf
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Source3: %{name}-mapserver-lighttpd.conf
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Source4: %{name}-mapserver-README.fedora
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# MIME definitions
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@ -33,6 +32,10 @@ Patch0: qgis-1.5.0-grass.patch
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# Avoid segfault when geo-referencing
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Patch1: %{name}-1.7.0-georef-crash.patch
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# https://github.com/qgis/Quantum-GIS/commit/834fc0b710171a80a29038f74ad2c603bf015424
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# Remove potential memory leak and negative frequencies in histogram
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Patch2: %{name}-1.7.0-histogram.patch
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# Leaving it to make life easier for ELGIS, as long as they target RHEL 5
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BuildRoot: %(mktemp -ud %{_tmppath}/%{name}-%{version}-%{release}-XXXXXX)
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@ -142,14 +145,19 @@ The services are prepared as regular projects in QGIS. They're rendered using
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the QGIS libraries. The server also supports SLD (Styled Layer Descriptor)
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for styling. Sample configurations for Httpd and Lighttpd are included.
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Please refer to %{name}-mapserver-README.fedora for details!
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%prep
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%setup -q
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%patch0 -p1 -b .grass
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%patch1 -p1 -b .georef
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%patch2 -p1 -b .histogram
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#TODO: Update FSF address or ship a GPLv3+ license file
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# http://hub.qgis.org/issues/3789
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# Readme file for QGIS mapserver configuration and Lighttpd sample
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install -pm0644 %{SOURCE4} .
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install -pm0644 %{SOURCE3} .
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# Delete bundled libspatialite
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rm -rf src/core/spatialite
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@ -183,8 +191,10 @@ rm -rf src/core/spatialite
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#-D WITH_INTERNAL_QWTPOLAR:BOOL=FALSE \
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# Parallel make leads to race conditions
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#make %{?_smp_mflags}
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make
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# http://hub.qgis.org/issues/2880
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#make
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# Seems to be fine from version 1.7 on
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make %{?_smp_mflags}
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%install
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rm -rf %{buildroot}
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@ -255,12 +265,21 @@ rm -rf %{buildroot}
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%post
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/sbin/ldconfig
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touch --no-create %{_datadir}/icons/hicolor &>/dev/null || :
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update-mime-database %{_datadir}/mime &> /dev/null || :
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%postun
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/sbin/ldconfig
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if [ $1 -eq 0 ] ; then
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touch --no-create %{_datadir}/icons/hicolor &>/dev/null
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gtk-update-icon-cache %{_datadir}/icons/hicolor &>/dev/null || :
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fi
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update-mime-database %{_datadir}/mime &> /dev/null || :
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%posttrans
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gtk-update-icon-cache %{_datadir}/icons/hicolor &>/dev/null || :
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%if ! 0%{?rhel}
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%post grass -p /sbin/ldconfig
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@ -272,7 +291,6 @@ update-mime-database %{_datadir}/mime &> /dev/null || :
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%postun python -p /sbin/ldconfig
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%files -f %{name}.lang
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#TODO: Update FSF address or ship a GPLv3+ license file
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#TODO: Encoding problem on the help page
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# CONTRIBUTORS and AUTHORS are intended be viewed in the About-Box
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%doc BUGS ChangeLog CODING COPYING Exception_to_GPL_for_Qt.txt PROVENANCE README
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@ -327,11 +345,22 @@ update-mime-database %{_datadir}/mime &> /dev/null || :
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%files mapserver
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%doc src/mapserver/admin.sld src/mapserver/wms_metadata.xml %{name}-mapserver-README.fedora
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%doc %{name}-mapserver-lighttpd.conf
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%config(noreplace) %{_sysconfdir}/httpd/conf.d/%{name}-mapserver.conf
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%{_libexecdir}/%{name}
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%changelog
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* Mon Jul 06 2011 Volker Fröhlich <volker27@gmx.at> - 1.7.0-3
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- Withdraw immature Lighty configuration
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- Update README and provide a better sample configuration,
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that utilizes mod_rewrite
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* Mon Jun 26 2011 Volker Fröhlich <volker27@gmx.at> - 1.7.0-2
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- Add histogram patch
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- Add scriplets to refresh icon cache
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- Mention Fedora specific readme file in QGIS mapserver description
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- Update the aforementioned file and the Apache configuration
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with rewrite rules
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* Mon Jun 26 2011 Volker Fröhlich <volker27@gmx.at> - 1.7.0-1
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- Update for 1.7
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- License is now GPLv3+ (Sqlanyconnect)
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