diff --git a/sci-mathematics/ginac/ginac-1.7.2.recipe b/sci-mathematics/ginac/ginac-1.7.2.recipe
index 6c3967be6..816cbeede 100644
--- a/sci-mathematics/ginac/ginac-1.7.2.recipe
+++ b/sci-mathematics/ginac/ginac-1.7.2.recipe
@@ -7,12 +7,12 @@ existing numeric software written in C++."
 HOMEPAGE="https://www.ginac.de/"
 COPYRIGHT="1999-2016 Johannes Gutenberg University Mainz, Germany"
 LICENSE="GNU GPL v2"
-REVISION="2"
+REVISION="3"
 SOURCE_URI="https://src.fedoraproject.org/repo/pkgs/ginac/ginac-1.7.2.tar.bz2/sha512/5c356beb8e0830b9f5805870f67298d4c19e512db8b8f46a37b490c19179a5c99e4497439e5adb575dd97e7deb5fe0b931a4b6db80e98a8e1e6f46977e33d8cf/ginac-$portVersion.tar.bz2"
 CHECKSUM_SHA256="24b75b61c5cb272534e35b3f2cfd64f053b28aee7402af4b0e569ec4de21d8b7"
 
 ARCHITECTURES="all !x86_gcc2"
-SECONDARY_ARCHITECTURES="!x86_gcc2 x86"
+SECONDARY_ARCHITECTURES="x86"
 
 if [ "$targetArchitecture" != x86_gcc2 ]; then
 	commandSuffix=$secondaryArchSuffix
@@ -22,23 +22,26 @@ else
 	commandBinDir=$prefix/bin
 fi
 
+libVersion="5.0.3"
+libVersionCompat="$libVersion compat >= ${libVersion%%.*}"
+
 PROVIDES="
 	ginac$secondaryArchSuffix = $portVersion
-	lib:libginac$secondaryArchSuffix = 5.0.3 compat >= 5
 	cmd:ginac_excompiler$commandSuffix = $portVersion
 	cmd:ginsh$commandSuffix = $portVersion
 	cmd:viewgar$commandSuffix = $portVersion
+	lib:libginac$secondaryArchSuffix = $libVersionCompat
 	"
 REQUIRES="
 	haiku$secondaryArchSuffix
-	lib:libcln$secondaryArchSuffix >= 6
+	lib:libcln$secondaryArchSuffix
 	lib:libncurses$secondaryArchSuffix
 	lib:libreadline$secondaryArchSuffix
 	"
 
 PROVIDES_devel="
 	ginac${secondaryArchSuffix}_devel = $portVersion
-	devel:libginac$secondaryArchSuffix = 5.0.3 compat >= 5
+	devel:libginac$secondaryArchSuffix = $libVersionCompat
 	"
 REQUIRES_devel="
 	ginac$secondaryArchSuffix == $portVersion base
@@ -46,22 +49,30 @@ REQUIRES_devel="
 
 BUILD_REQUIRES="
 	haiku${secondaryArchSuffix}_devel
-	devel:libcln$secondaryArchSuffix >= 6
+	devel:libcln$secondaryArchSuffix
 	devel:libncurses$secondaryArchSuffix
 	devel:libreadline$secondaryArchSuffix
 	"
 BUILD_PREREQUIRES="
 	cmd:awk
 	cmd:diff
-	cmd:make
-	cmd:python >= 2.7
 	cmd:gcc$secondaryArchSuffix
+	cmd:make
 	cmd:pkg_config$secondaryArchSuffix
+	cmd:python3
 	"
 
+PATCH()
+{
+	sed -i 's,\/usr/bin/env python,\/bin/env python3,g' ginsh/*.py
+	sed -i 's,\/usr/bin/env python,\/bin/env python3,g' scripts/*.py
+}
+
 BUILD()
 {
-	runConfigure --omit-dirs binDir ./configure --bindir=$commandBinDir
+	runConfigure --omit-dirs binDir ./configure \
+		--bindir=$commandBinDir \
+		--disable-static
 	make $jobArgs
 }
 
@@ -72,7 +83,6 @@ INSTALL()
 	rm $libDir/*.la
 
 	prepareInstalledDevelLib libginac
-
 	fixPkgconfig
 
 	packageEntries devel \