Split iup package to the base iup library and Lua bindings

- build Lua bindings for Lua 5.3, 5.2 and 5.1 as separate packages
  (build targets iuplua53, iupconsole and iupluascripter)
- create symbolic links required for Lua modules to work properly
- add RUNPATH to Lua libraries, so that they are found at runtime
  without the need to fiddle with LD_LIBRARY_PATH.
  (man ld (serach -rpath, https://en.wikipedia.org/wiki/Rpath,
  http://blog.qt.io/blog/2011/10/28/rpath-and-runpath/)

Signed-off-by: Jiří Klimeš <blueowl@centrum.cz>

2 files changed, 147 insertions, 10 deletions

diff --git a/.SRCINFO b/.SRCINFO
index c2a9dd313d72..2e9205706cb4 100644
--- a/.SRCINFO
+++ b/.SRCINFO
@@ -7,15 +7,45 @@ pkgbase = iup
 	arch = x86_64
 	license = MIT
 	makedepends = lsb-release
-	depends = libcd
-	depends = ftgl
-	depends = webkitgtk
-	depends = openmotif
-	depends = libxpm
+	makedepends = libcd
+	makedepends = ftgl
+	makedepends = webkitgtk
+	makedepends = openmotif
+	makedepends = libxpm
+	makedepends = lua-cd
+	makedepends = lua51-cd
+	makedepends = lua52-cd
 	source = http://downloads.sourceforge.net/project/iup/3.22/Docs%20and%20Sources/iup-3.22_Sources.tar.gz
 	source = http://downloads.sourceforge.net/project/iup/3.22/Docs%20and%20Sources/iup-3.22_Docs.pdf
 	md5sums = 26058d6ce10ba57a2494bd66640d74a3
 	md5sums = fa83211e0e9a510e21602c86dbf02ff1
 
 pkgname = iup
+	pkgdesc = C cross platform GUI toolkit
+	depends = libcd
+	depends = ftgl
+	depends = webkitgtk
+	depends = openmotif
+	depends = libxpm
+
+pkgname = lua-iup
+	pkgdesc = Lua 5.3 bindings for IUP GUI toolkit
+	depends = iup
+	depends = lua
+	optdepends = lua-im: IM toolkit support
+	optdepends = lua-cd: Canwas Draw support
+
+pkgname = lua51-iup
+	pkgdesc = Lua 5.1 bindings for IUP GUI toolkit
+	depends = iup
+	depends = lua51
+	optdepends = lua51-im: IM toolkit support
+	optdepends = lua51-cd: Canwas Draw support
+
+pkgname = lua52-iup
+	pkgdesc = Lua 5.2 bindings for IUP GUI toolkit
+	depends = iup
+	depends = lua52
+	optdepends = lua52-im: IM toolkit support
+	optdepends = lua52-cd: Canwas Draw support
 
diff --git a/PKGBUILD b/PKGBUILD
index f1d0e3cbacec..372ed5100e9b 100644
--- a/PKGBUILD
+++ b/PKGBUILD
@@ -3,15 +3,15 @@
 # Contributor: Karro <karolina.lindqvist@kramnet.se>
 # Contributor: maoserr
 
-pkgname=iup
+pkgbase=iup
+pkgname=('iup' 'lua-iup' 'lua51-iup' 'lua52-iup')
 pkgver=3.22
 pkgrel=1
 pkgdesc="C cross platform GUI toolkit"
 arch=('i686' 'x86_64')
 url="http://www.tecgraf.puc-rio.br/iup/"
 license=('MIT')
-makedepends=('lsb-release')
-depends=('libcd' 'ftgl' 'webkitgtk' 'openmotif' 'libxpm')
+makedepends=('lsb-release' 'libcd' 'ftgl' 'webkitgtk' 'openmotif' 'libxpm' 'lua-cd' 'lua51-cd' 'lua52-cd')
 
 source=(
   "http://downloads.sourceforge.net/project/iup/${pkgver}/Docs%20and%20Sources/iup-${pkgver}_Sources.tar.gz"
@@ -24,10 +24,43 @@ md5sums=('26058d6ce10ba57a2494bd66640d74a3'
 prepare() {
   # Link iupview statically
   sed 's/USE_STATIC = Yes/USE_STATIC =/' -i "$srcdir"/iup/srcview/config.mak
+
+  # We want to use dynamic liblua
+  sed '/NO_LUALINK = Yes/{ N; s/.*/LIBS += lua$(LUA_SFX)/; }' -i "$srcdir"/iup/srcluaconsole/config.mak
+  sed '/NO_LUALINK = Yes/{ N; s/.*/LIBS += lua$(LUA_SFX)/; }' -i "$srcdir"/iup/srcluascripter/config.mak
+
+  # Add RUN_PATH variable to be able to set DT_RUNPATH
+  sed 's/$(ECHO)$(LINKER)/& $(RUN_PATH)/' -i "$srcdir"/iup/tecmake.mak
+  sed 's/$(ECHO)$(LD)/& $(RUN_PATH)/' -i "$srcdir"/iup/tecmake.mak
+}
+
+_lua_iup_build_helper() {
+  # $1 ... Lua version ("5.1", "5.2" or "5.3")
+
+  _lua_ver=$1
+  _lua_ver_nodot=`echo $1 | cut -c1,3`
+
+  make \
+    iuplua5 \
+    iupluaconsole \
+    iupluascripter \
+    RUN_PATH="-Wl,-rpath=/usr/lib/lua/${_lua_ver},--enable-new-dtags,--as-needed" \
+    IM_INC=/usr/include/im \
+    IM_LIB=/usr/lib \
+    CD_INC=/usr/include/cd \
+    CD_LIB=/usr/lib \
+    IMLUA_LIB=/usr/lib/lua/${_lua_ver} \
+    CDLUA_LIB=/usr/lib/lua/${_lua_ver} \
+    ZLIB_LIB=/usr/lib \
+    USE_GTK3=Yes \
+    USE_LUA${_lua_ver_nodot}=Yes \
+    LUA_INC=/usr/include/lua${_lua_ver} \
+    LUA_LIB=/usr/lib \
+    LUA_SFX=${_lua_ver}
 }
 
 build() {
-  # Build iup package (without Lua bindings)
+  # Build main iup package (without Lua bindings)
   cd "$pkgname"
   make \
     iup \
@@ -54,9 +87,56 @@ build() {
     IM_INC=/usr/include/im \
     ZLIB_LIB=/usr/lib \
     USE_GTK3=Yes
+
+  msg2 'Building iup Lua bindings for Lua 5.3'
+  _lua_iup_build_helper "5.3"
+
+  msg2 'Building iup Lua bindings for Lua 5.1'
+  _lua_iup_build_helper "5.1"
+
+  msg2 'Building iup Lua bindings for Lua 5.2'
+  _lua_iup_build_helper "5.2"
 }
 
-package() {
+_lua_iup_package_helper() {
+  # $1 ... Lua version ("5.1", "5.2", "5.3", ... or "none")
+
+  _lua_ver=$1
+  _lua_ver_nodot=`echo $1 | cut -c1,3`
+
+  # install files
+  install -m755 -d "$pkgdir"/usr/bin
+  install -m755 "$srcdir"/iup/bin/Linux*_??/Lua${_lua_ver_nodot}/* "$pkgdir"/usr/bin
+  install -d "$pkgdir"/usr/lib/lua/${_lua_ver}/
+  install -Dm755 "$srcdir"/iup/lib/Linux*_??/Lua${_lua_ver_nodot}/*.so "$pkgdir"/usr/lib/lua/${_lua_ver}/
+  mkdir -p "$pkgdir"/usr/share/licenses/$pkgname
+  install -m644 "$srcdir"/iup/COPYRIGHT "$pkgdir"/usr/share/licenses/$pkgname
+
+  # create symlinks required for Lua modules
+  for name in \
+    iuplua \
+    iupluacd \
+    iupluagl \
+    iupluaweb \
+    iupluatuio \
+    iupluaim \
+    iupluaimglib \
+    iupluacontrols \
+    iupluaglcontrols \
+    iupluamatrixex \
+    iuplua_mglplot \
+    iuplua_plot \
+    iuplua_scintilla \
+    iupluascripterdlg ; do
+      _lib=lib${name}${_lua_ver_nodot}.so
+      ln -s /usr/lib/lua/${_lua_ver}/${_lib} "${pkgdir}"/usr/lib/lua/${_lua_ver}/${name}.so
+  done
+}
+
+package_iup() {
+  pkgdesc="C cross platform GUI toolkit"
+  depends=('libcd' 'ftgl' 'webkitgtk' 'openmotif' 'libxpm')
+
   install -m755 -d "$pkgdir"/usr/lib
   install -m755 "$srcdir"/iup/lib/Linux*_??/libiup* "$pkgdir"/usr/lib
   install -m755 -d "$pkgdir"/usr/bin
@@ -68,3 +148,30 @@ package() {
   mkdir -p "$pkgdir"/usr/share/licenses/$pkgname
   install -m644 "$srcdir"/iup/COPYRIGHT "$pkgdir"/usr/share/licenses/$pkgname
 }
+
+package_lua-iup() {
+  pkgdesc="Lua 5.3 bindings for IUP GUI toolkit"
+  depends=('iup' 'lua')
+  optdepends=('lua-im: IM toolkit support'
+              'lua-cd: Canwas Draw support')
+
+  _lua_iup_package_helper "5.3"
+}
+
+package_lua51-iup() {
+  pkgdesc="Lua 5.1 bindings for IUP GUI toolkit"
+  depends=('iup' 'lua51')
+  optdepends=('lua51-im: IM toolkit support'
+              'lua51-cd: Canwas Draw support')
+
+  _lua_iup_package_helper "5.1"
+}
+
+package_lua52-iup() {
+  pkgdesc="Lua 5.2 bindings for IUP GUI toolkit"
+  depends=('iup' 'lua52')
+  optdepends=('lua52-im: IM toolkit support'
+              'lua52-cd: Canwas Draw support')
+
+  _lua_iup_package_helper "5.2"
+}