cmake: rework styles building

- fix several styles-related FTBFS when disabling a style
- use separated flags for BUILD_STULE and WITH_STYLE_ALL
- add several convenience macros

Signed-off-by: Alexander Golubev <fatzer2@gmail.com>

3 files changed, 55 insertions, 47 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index d858e2f9..82cfe3a4 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -123,18 +123,19 @@ option( WITH_MODULE_SQL         "Build the SQL module"          ${WITH_MODULE_AL
 
 ##### user requested styles:
 
-## Motif style is mandatory for CDE, MotifPlus and SGI builds
-## Windows style is mandatory for Platinum and Interlace (experimental, OFF by default) builds
-
-option( WITH_STYLE_ALL       "Build tqt3 styles"      ${WITH_MODULE_STYLES} )
-option( WITH_STYLE_MOTIF     "Build Motif style"      ${WITH_STYLE_ALL} )
-option( WITH_STYLE_CDE       "Build CDE style"        ${WITH_STYLE_ALL} )
-option( WITH_STYLE_MOTIFPLUS "Build Motif plus style" ${WITH_STYLE_ALL} )
-option( WITH_STYLE_SGI       "Build SGI style"        ${WITH_STYLE_ALL} )
-option( WITH_STYLE_WINDOWS   "Build Windows style"    ${WITH_STYLE_ALL} )
-option( WITH_STYLE_PLATINIUM "Build platinium style"  ${WITH_STYLE_ALL} )
+option( WITH_STYLE_ALL       "Build all style"        ${WITH_MODULE_STYLES} )
+option( WITH_STYLE_MOTIF     "Build Motif style"      ${WITH_STYLES_ALL} )
+option( WITH_STYLE_WINDOWS   "Build Windows style"    ${WITH_STYLES_ALL} )
+## Depend upon WITH_MOTIF_STYLE
+option( WITH_STYLE_CDE       "Build CDE style"        ${WITH_STYLES_ALL} )
+option( WITH_STYLE_MOTIFPLUS "Build Motif plus style" ${WITH_STYLES_ALL} )
+option( WITH_STYLE_SGI       "Build SGI style"        ${WITH_STYLES_ALL} )
+## Depend upon WITH_WINDOWS_STYLE
+option( WITH_STYLE_COMPACT   "Build compact style"    ${WITH_STYLES_ALL} )
+option( WITH_STYLE_PLATINUM  "Build platinium style"  ${WITH_STYLES_ALL} )
 option( WITH_STYLE_INTERLACE "Build interlace style"  OFF )
 
+## NOTE: Interlace is OFF by default due to it being experimental
 
 ##### user requested sql modules
 
diff --git a/TQtMacros.cmake b/TQtMacros.cmake
index c9781ef7..9cd48750 100644
--- a/TQtMacros.cmake
+++ b/TQtMacros.cmake
@@ -6,6 +6,21 @@
 
 include( TDEMacros )
 
+#################################################
+#####
+##### tqt_requires
+#####
+##### Asserts that if opt1 is set opt2 is set also
+#####
+##### Syntax:
+#####   tqt_requires( opt1 opt2 )
+
+macro( tqt_requires _opt1 _opt2 )
+  if( ${_opt1} AND NOT ${_opt2} )
+    tde_message_fatal( "${_opt1}=ON requires ${_opt2}=ON to build" )
+  endif( )
+endmacro( tqt_requires )
+
 
 #################################################
 #####
@@ -113,6 +128,7 @@ endmacro( tqt_install_includes )
 #####
 ##### Syntax:
 #####   tqt_header_for_source ( header_list source [source ...] )
+
 macro( tqt_header_for_source _include_out )
   foreach( _src ${ARGN} )
     # As for now tqt has an "nt" prefix before filenames, so in order to handle all the casses
diff --git a/src/styles/CMakeLists.txt b/src/styles/CMakeLists.txt
index bee32d5a..2b5f7fec 100644
--- a/src/styles/CMakeLists.txt
+++ b/src/styles/CMakeLists.txt
@@ -13,52 +13,43 @@ link_directories()
 ##### styles (static)
 
 set( target styles )
-set( _SRC_ qcdestyle.cpp
-           qcommonstyle.cpp
-           qcompactstyle.cpp
-           qinterlacestyle.cpp
-           qmotifplusstyle.cpp
-           qmotifstyle.cpp
-           qplatinumstyle.cpp
-           qsgistyle.cpp
-           qstylefactory.cpp
+set( _SRC_ qcommonstyle.cpp
            qstyleplugin.cpp
-           qwindowsstyle.cpp
+           qstylefactory.cpp
 )
 
-set( _disabled_styles "" )
-list( APPEND _disabled_styles
+set( _STYLE_MOTIF_SRC_     qmotifstyle.cpp     )
+set( _STYLE_WINDOWS_SRC_   qwindowsstyle.cpp   )
+set( _STYLE_CDE_SRC_       qcdestyle.cpp       )
+set( _STYLE_MOTIFPLUS_SRC_ qmotifplusstyle.cpp )
+set( _STYLE_SGI_SRC_       qsgistyle.cpp       )
+set( _STYLE_COMPACT_SRC_   qcompactstyle.cpp   )
+set( _STYLE_INTERLACE_SRC_ qinterlacestyle.cpp )
+set( _STYLE_PLATINUM_SRC_  qplatinumstyle.cpp  )
+
+# check style dependencies
+tqt_requires( WITH_STYLE_CDE       WITH_STYLE_MOTIF   )
+tqt_requires( WITH_STYLE_MOTIFPLUS WITH_STYLE_MOTIF   )
+tqt_requires( WITH_STYLE_SGI       WITH_STYLE_MOTIF   )
+tqt_requires( WITH_STYLE_INTERLACE WITH_STYLE_WINDOWS )
+tqt_requires( WITH_STYLE_PLATINUM  WITH_STYLE_WINDOWS )
+tqt_requires( WITH_STYLE_COMPACT   WITH_STYLE_WINDOWS )
+
+# styles unsupported on X11
+set ( _disabled_styles
     TQT_NO_STYLE_WINDOWSXP
     TQT_NO_STYLE_AQUA
     TQT_NO_STYLE_POCKETPC
     TQT_NO_STYLE_MAC
 )
 
-if( WITH_STYLE_WINDOWS )
-    if( NOT WITH_STYLE_INTERLACE )
-        list( APPEND _disabled_styles TQT_NO_STYLE_INTERLACE )
-    endif()
-    if( NOT WITH_STYLE_PLATINIUM )
-        list( APPEND _disabled_styles  TQT_NO_STYLE_PLATINUM )
-    endif()
- else()
-    tde_message_fatal( "Windows style is required for this build" )
-endif( WITH_STYLE_WINDOWS )
-
-if( WITH_STYLE_MOTIF )
-    if( NOT WITH_STYLE_SGI )
-        list( APPEND _disabled_styles TQT_NO_STYLE_SGI )
-    endif()
-    if( NOT WITH_STYLE_MOTIFPLUS)
-        list( APPEND _disabled_styles TQT_NO_STYLE_MOTIFPLUS )
-    endif()
-    if( NOT WITH_STYLE_CDE )
-        list( APPEND _disabled_styles TQT_NO_STYLE_CDE )
-    endif()
- else()
-    tde_message_fatal( "Motif style is required for this build" )
-endif( WITH_STYLE_MOTIF )
-
+foreach( _style MOTIF WINDOWS CDE MOTIFPLUS SGI COMPACT INTERLACE PLATINUM )
+    if( WITH_STYLE_${_style} )
+        list( APPEND _SRC_ "${_STYLE_${_style}_SRC_}" )
+     else( )
+        list( APPEND _disabled_styles "TQT_NO_STYLE_${_style}" )
+    endif( )
+endforeach( )
 
 tde_add_library( ${target} STATIC_PIC