scons: scons-4.2.0: package build fails, can't find scons.1

** what looks like the actual problem **

setup.py install -O1 --skip-build --root /home/sagitter/rpmbuild/BUILDROOT/scons-4.2.0-1.fc34.x86_64 --install-scripts=/usr/bin --install-data=/usr/share

yields.

running install_data
error: can't copy 'scons.1': doesn't exist or not a regular file

** Initial report **

Hi all.

Describe the bug Scons manpages are not created in build time (see full scons-4.2.0-buildlog.txt attached):

scons: Reading SConscript files ...
scons: done reading SConscript files.
scons: Building targets ...
__xinclude_lxml(["scons_xi.xml"], ["scons.xml"])
__build_lxml(["scons_db.xml"], ["scons_xi.xml"])
__build_lxml(["scons-scons.fo"], ["scons_db.xml"])
/usr/bin/fop -fo scons-scons.fo -pdf scons-scons.pdf
Aug 01, 2021 5:52:32 PM org.apache.fop.apps.FOUserAgent processEvent
SEVERE: Invalid property value encountered in margin-left="": org.apache.fop.fo.expr.PropertyException: file:/home/sagitter/rpmbuild/BUILD/scons-4.2.0/build/doc/man/scons-scons.fo:3:6: No conversion defined ; property:'margin-left' (See position 147:8)
org.apache.fop.fo.expr.PropertyException: file:/home/sagitter/rpmbuild/BUILD/scons-4.2.0/build/doc/man/scons-scons.fo:3:6: No conversion defined ; property:'margin-left'
	at org.apache.fop.fo.properties.PropertyMaker.make(PropertyMaker.java:446)
	at org.apache.fop.fo.PropertyList.convertAttributeToProperty(PropertyList.java:499)
	at org.apache.fop.fo.PropertyList.addAttributesToList(PropertyList.java:386)
	at org.apache.fop.fo.FObj.processNode(FObj.java:129)
	at org.apache.fop.fo.FOTreeBuilder$MainFOHandler.startElement(FOTreeBuilder.java:293)
	at org.apache.fop.fo.FOTreeBuilder.startElement(FOTreeBuilder.java:179)
	at java.xml/com.sun.org.apache.xml.internal.serializer.ToXMLSAXHandler.closeStartTag(ToXMLSAXHandler.java:206)
	at java.xml/com.sun.org.apache.xml.internal.serializer.ToXMLSAXHandler.characters(ToXMLSAXHandler.java:526)
	at java.xml/com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.characters(AbstractSAXParser.java:547)
	at java.xml/com.sun.org.apache.xerces.internal.xinclude.XIncludeHandler.characters(XIncludeHandler.java:1183)
	at java.xml/com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:477)
	at java.xml/com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:888)
	at java.xml/com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:824)
	at java.xml/com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:141)
	at java.xml/com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1216)
	at java.xml/com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:635)
	at java.xml/com.sun.org.apache.xalan.internal.xsltc.trax.TransformerImpl.transformIdentity(TransformerImpl.java:687)
	at java.xml/com.sun.org.apache.xalan.internal.xsltc.trax.TransformerImpl.transform(TransformerImpl.java:774)
	at java.xml/com.sun.org.apache.xalan.internal.xsltc.trax.TransformerImpl.transform(TransformerImpl.java:370)
	at org.apache.fop.cli.InputHandler.transformTo(InputHandler.java:293)
	at org.apache.fop.cli.InputHandler.renderTo(InputHandler.java:116)
	at org.apache.fop.cli.Main.startFOP(Main.java:183)
	at org.apache.fop.cli.Main.main(Main.java:213)

Required information

• Version of SCons: 4.2.0
• Version of Python: 3.9.6
• What Platform are you on? Linux, Fedora 34
• fop 2.5
• openjdk 11.0.12 2021-07-20
• python sphinx-3.4.3