diff --git a/.gitignore b/.gitignore
index a6685e63..d6d75491 100644
--- a/.gitignore
+++ b/.gitignore
@@ -17,3 +17,4 @@ doxygen.warn
 *.deb
 *.zip
 Makefile
+/dist
diff --git a/build/doc b/build/doc
new file mode 100755
index 00000000..4b3b64ae
--- /dev/null
+++ b/build/doc
@@ -0,0 +1,32 @@
+#! /bin/sh
+
+# This file is in the public domain, so clarified as of
+# 2009-05-17 by Arthur David Olson.
+
+# Tell groff not to emit SGR escape sequences (ANSI color escapes).
+GROFF_NO_SGR=1
+export GROFF_NO_SGR
+
+echo ".am TH
+.hy 0
+.na
+..
+.rm }H
+.rm }F" | nroff -man - ${1+"$@"} | perl -ne '
+	binmode STDIN, '\'':encoding(utf8)'\'';
+	binmode STDOUT, '\'':encoding(utf8)'\'';
+	chomp;
+	s/.\010//g;
+	s/\s*$//;
+	if (/^$/) {
+		$sawblank = 1;
+		next;
+	} else {
+		if ($sawblank && $didprint) {
+			print "\n";
+			$sawblank = 0;
+		}
+		print "$_\n";
+		$didprint = 1;
+	}
+'
diff --git a/builddist b/builddist
index b7d15442..54dff3d6 100755
--- a/builddist
+++ b/builddist
@@ -1,5 +1,6 @@
 #!/bin/sh
 #
+# Build Classic AmigaOS distribtion package
 # This file is public domain
 #
 # Project homepage:
@@ -11,62 +12,116 @@
 
 set -e
 
-rm -f amath.lha
-rm -Rf amath
-rm -Rf dist
-mkdir dist
+distdir="dist"
+builddir="tmp"
+bindir="bin"
+stamp="202101120000"
 
+rm -Rf ${distdir}
+rm -Rf ${builddir}
+mkdir -p ${builddir}
+
+# Build binaries
 ./configure --disable-test --disable-pic --cross-compile="m68k-amigaos" CFLAGS="-m68000 -noixemul"
 make clean
 make static
-mv amath dist/amath.000
+mv amath ${builddir}/amath
 make clean
 ./configure --disable-test --disable-pic --cross-compile="m68k-amigaos" CFLAGS="-m68020 -noixemul"
 make static
-mv amath dist/amath.020
+mv amath ${builddir}/amath.020
 make clean
 ./configure --disable-test --disable-pic --cross-compile="m68k-amigaos" CFLAGS="-m68030 -noixemul"
 make static
-mv amath dist/amath.030
+mv amath ${builddir}/amath.030
 make clean
 
+# Build test binaries
 ./configure --enable-test --disable-pic --cross-compile="m68k-amigaos" CFLAGS="-m68000 -noixemul"
 make static
-mv amath dist/amath-test.000
+mv amath ${builddir}/amath-test
 make clean
 ./configure --enable-test --disable-pic --cross-compile="m68k-amigaos" CFLAGS="-m68020 -noixemul"
 make static
-mv amath dist/amath-test.020
+mv amath ${builddir}/amath-test.020
 make clean
 ./configure --enable-test --disable-pic --cross-compile="m68k-amigaos" CFLAGS="-m68030 -noixemul"
 make static
-mv amath dist/amath-test.030
+mv amath ${builddir}/amath-test.030
 make clean
 
-cd dist
+# Build catalogs
+make catalogs
+
+# Build documentation
+#./build/doc >${builddir}/amath.doc amath.1
+groff >${builddir}/amath.html amath.1 -mandoc -Thtml
+
+# Generate hashkeys
+cd ${builddir}
 touch hashkeys
-sha1sum amath.000 >>hashkeys
+sha1sum amath >>hashkeys
 sha1sum amath.020 >>hashkeys
 sha1sum amath.030 >>hashkeys
-sha1sum amath-test.000 >>hashkeys
+sha1sum amath-test >>hashkeys
 sha1sum amath-test.020 >>hashkeys
 sha1sum amath-test.030 >>hashkeys
-sha256sum amath.000 >>hashkeys
+sha256sum amath >>hashkeys
 sha256sum amath.020 >>hashkeys
 sha256sum amath.030 >>hashkeys
-sha256sum amath-test.000 >>hashkeys
+sha256sum amath-test >>hashkeys
 sha256sum amath-test.020 >>hashkeys
 sha256sum amath-test.030 >>hashkeys
 cd ..
 
-make catalogs
-cp LICENSE dist/
-cp HISTORY dist/
+# Build distribution directory structure
+mkdir -m 775 ${distdir}
+mkdir -m 775 ${distdir}/amath
+mkdir -m 775 ${distdir}/amath/ARexx
+mkdir -m 775 ${distdir}/amath/Catalog
+mkdir -m 775 ${distdir}/amath/Catalog/english
+mkdir -m 775 ${distdir}/amath/Script
+mkdir -m 775 ${distdir}/amath/Test
 
-mkdir dist/script
-cp script/* dist/script/
-date -Ru >dist/build_date
-#uname -srmo >dist/build_host
+# Install icons
+install -m 664 ${bindir}/root/*.info ${distdir}/
+install -m 664 ${bindir}/prog/*.info ${distdir}/amath/
+install -m 664 ${bindir}/catalog/*.info ${distdir}/amath/Catalog/
+install -m 664 ${bindir}/script/*.info ${distdir}/amath/Script/
 
-mv dist amath
-#lha-ac a amath.lha amath
+# Install documentation
+install -m 664 HISTORY ${distdir}/amath/
+install -m 664 LICENSE ${distdir}/amath/
+install -m 664 ${builddir}/hashkeys ${distdir}/amath/
+install -m 664 ${builddir}/amath.html ${distdir}/amath/
+install -m 664 ${bindir}/amath.doc ${distdir}/amath/
+install -m 664 ${bindir}/amath.readme ${distdir}/amath/
+
+# Install scripts
+install -m 755 arexx/* ${distdir}/amath/ARexx/
+install -m 755 script/* ${distdir}/amath/Script/
+
+# Install binaries
+install -m 755 ${builddir}/amath ${distdir}/amath/
+install -m 755 ${builddir}/amath.020 ${distdir}/amath/
+install -m 755 ${builddir}/amath.030 ${distdir}/amath/
+install -m 755 ${builddir}/amath-test ${distdir}/amath/Test/
+install -m 755 ${builddir}/amath-test.020 ${distdir}/amath/Test/
+install -m 755 ${builddir}/amath-test.030 ${distdir}/amath/Test/
+
+# Install catalogs
+install -m 755 distcat/catalog/english/*.catalog ${distdir}/amath/Catalog/english/
+
+# Sign build with date
+date -Ru >${distdir}/amath/build_date
+#uname -srmo >${distdir}/amath/build_host
+
+for f in $(find ${distdir} -name '*'); do touch -amt ${stamp}.00 $f; done
+
+# Cleanup
+rm -Rf distcat
+rm -Rf ${builddir}
+
+# Install source
+./buildsrc
+mv amath-1.9.0 ${distdir}/
diff --git a/buildsrc b/buildsrc
index 367a81ef..f3de49c4 100755
--- a/buildsrc
+++ b/buildsrc
@@ -1,5 +1,6 @@
 #!/bin/sh
 #
+# Build source distribtion package
 # This file is public domain
 #
 # Project homepage:
@@ -9,13 +10,12 @@
 # DO NOT USE THIS SCRIPT UNLESS YOU KNOW WHAT YOU ARE DOING !
 
 version='1.9.0'
-stamp="202101110000"
-srcdir="amath-rc"
+stamp="202101120000"
+srcdir="."
 distdir="amath-${version}"
-cd ..
 
 rm -f amath-${version}.tar.gz
-rm -Rf amath-${version}
+rm -Rf ${distdir}
 
 mkdir -m 775 ${distdir}
 mkdir -m 775 ${distdir}/src/
diff --git a/configure b/configure
index fbaa55ce..fe886799 100755
--- a/configure
+++ b/configure
@@ -1194,10 +1194,10 @@ echo "	cd src/cplex && \${MAKE} doc"
 echo
 echo "catalogs:"
 echo "	cd build/flexcat && \${MAKE}"
-echo "	\${MKDIR}  dist/catalog/english"
-echo "	\${FLXCAT} text/help.cd catalog/english/amath-help.ct CATALOG dist/catalog/english/amath-help.catalog"
-echo "	\${FLXCAT} text/ident.cd catalog/english/amath-ident.ct CATALOG dist/catalog/english/amath-ident.catalog"
-echo "	\${FLXCAT} text/text.cd catalog/english/amath-text.ct CATALOG dist/catalog/english/amath-text.catalog"
+echo "	\${MKDIR}  distcat/catalog/english"
+echo "	\${FLXCAT} text/help.cd catalog/english/amath-help.ct CATALOG distcat/catalog/english/amath-help.catalog"
+echo "	\${FLXCAT} text/ident.cd catalog/english/amath-ident.ct CATALOG distcat/catalog/english/amath-ident.catalog"
+echo "	\${FLXCAT} text/text.cd catalog/english/amath-text.ct CATALOG distcat/catalog/english/amath-text.catalog"
 echo
 echo "shared-libs:"
 echo "	cd src/lib && \${MAKE} shared"