texlive: create libsynctex sub-package.

Other packages can link against this library, and they don't need to
pull in the whole texlive package.

common/shlibs

@@ -3973,6 +3973,7 @@ libkpathsea.so.6 texlive-20200406_1
 libtexluajit.so.2 texlive-LuaTeX-20200406_1
 libtexlua53.so.5 texlive-LuaTeX-20200406_1
 libptexenc.so.1 texlive-20200406_1
+libsynctex.so.2 libsynctex-20200406_3
 libdolphinvcs.so.5 dolphin-20.04.3_1
 libcglm.so.0 cglm-0.7.6_1
 libfcft.so.3 fcft-2.2.2_1

srcpkgs/texlive/template

@@ -1,7 +1,7 @@
 # Template file for 'texlive'
 pkgname=texlive
 version=20200406
-revision=2
+revision=3
 wrksrc="texlive-${version}-source"
 build_wrksrc="build"
 build_style=gnu-configure
@@ -335,6 +335,13 @@ texlive-Xdvi_package() {
 	}
 }
 
+libsynctex_package() {
+	short_desc+=" - libsynctex"
+	pkg_install() {
+		vmove usr/lib/libsynctex.so.*
+	}
+}
+
 texlive-devel_package() {
 	depends="${sourcepkg}>=${version}_${revision}"
 	short_desc+=" - development files"