autosetup/cc-shared.tcl

   1 # Copyright (c) 2010 WorkWare Systems http://www.workware.net.au/
   2 # All rights reserved
   3
   4 # @synopsis:
   5 #
   6 # The 'cc-shared' module provides support for shared libraries and shared objects.
   7 # It defines the following variables:
   8 #
   9 ## SH_CFLAGS         Flags to use compiling sources destined for a shared library
  10 ## SH_LDFLAGS        Flags to use linking (creating) a shared library
  11 ## SH_SOPREFIX       Prefix to use to set the soname when creating a shared library
  12 ## SH_SOEXT          Extension for shared libs
  13 ## SH_SOEXTVER       Format for versioned shared libs - %s = version
  14 ## SHOBJ_CFLAGS      Flags to use compiling sources destined for a shared object
  15 ## SHOBJ_LDFLAGS     Flags to use linking a shared object, undefined symbols allowed
  16 ## SHOBJ_LDFLAGS_R   - as above, but all symbols must be resolved
  17 ## SH_LINKFLAGS      Flags to use linking an executable which will load shared objects
  18 ## LD_LIBRARY_PATH   Environment variable which specifies path to shared libraries
  19 ## STRIPLIBFLAGS     Arguments to strip a dynamic library
  20
  21 module-options {}
  22
  23 # Defaults: gcc on unix
  24 define SHOBJ_CFLAGS -fpic
  25 define SHOBJ_LDFLAGS -shared
  26 define SH_CFLAGS -fpic
  27 define SH_LDFLAGS -shared
  28 define SH_LINKFLAGS -rdynamic
  29 define SH_SOEXT .so
  30 define SH_SOEXTVER .so.%s
  31 define SH_SOPREFIX -Wl,-soname,
  32 define LD_LIBRARY_PATH LD_LIBRARY_PATH
  33 define STRIPLIBFLAGS --strip-unneeded
  34
  35 # Note: This is a helpful reference for identifying the toolchain
  36 #       http://sourceforge.net/apps/mediawiki/predef/index.php?title=Compilers
  37
  38 switch -glob -- [get-define host] {
  39         *-*-darwin* {
  40                 define SHOBJ_CFLAGS "-dynamic -fno-common"
  41                 define SHOBJ_LDFLAGS "-bundle -undefined dynamic_lookup"
  42                 define SHOBJ_LDFLAGS_R -bundle
  43                 define SH_CFLAGS -dynamic
  44                 define SH_LDFLAGS -dynamiclib
  45                 define SH_LINKFLAGS ""
  46                 define SH_SOEXT .dylib
  47                 define SH_SOEXTVER .%s.dylib
  48                 define SH_SOPREFIX -Wl,-install_name,
  49                 define LD_LIBRARY_PATH DYLD_LIBRARY_PATH
  50                 define STRIPLIBFLAGS -x
  51         }
  52         *-*-ming* - *-*-cygwin - *-*-msys {
  53                 define SHOBJ_CFLAGS ""
  54                 define SHOBJ_LDFLAGS -shared
  55                 define SH_CFLAGS ""
  56                 define SH_LDFLAGS -shared
  57                 define SH_LINKFLAGS ""
  58                 define SH_SOEXT .dll
  59                 define SH_SOEXTVER .dll
  60                 define SH_SOPREFIX ""
  61                 define LD_LIBRARY_PATH PATH
  62         }
  63         sparc* {
  64                 if {[msg-quiet cc-check-decls __SUNPRO_C]} {
  65                         msg-result "Found sun stdio compiler"
  66                         # sun stdio compiler
  67                         # XXX: These haven't been fully tested.
  68                         define SHOBJ_CFLAGS -KPIC
  69                         define SHOBJ_LDFLAGS "-G"
  70                         define SH_CFLAGS -KPIC
  71                         define SH_LINKFLAGS -Wl,-export-dynamic
  72                         define SH_SOPREFIX -Wl,-h,
  73                 } else {
  74                         # sparc has a very small GOT table limit, so use -fPIC
  75                         define SH_CFLAGS -fPIC
  76                         define SHOBJ_CFLAGS -fPIC
  77                 }
  78         }
  79         *-*-solaris* {
  80                 if {[msg-quiet cc-check-decls __SUNPRO_C]} {
  81                         msg-result "Found sun stdio compiler"
  82                         # sun stdio compiler
  83                         # XXX: These haven't been fully tested.
  84                         define SHOBJ_CFLAGS -KPIC
  85                         define SHOBJ_LDFLAGS "-G"
  86                         define SH_CFLAGS -KPIC
  87                         define SH_LINKFLAGS -Wl,-export-dynamic
  88                         define SH_SOPREFIX -Wl,-h,
  89                 }
  90         }
  91         *-*-hpux {
  92                 # XXX: These haven't been tested
  93                 define SHOBJ_CFLAGS "+O3 +z"
  94                 define SHOBJ_LDFLAGS -b
  95                 define SH_CFLAGS +z
  96                 define SH_LINKFLAGS -Wl,+s
  97                 define LD_LIBRARY_PATH SHLIB_PATH
  98         }
  99         *-*-haiku {
 100                 define SHOBJ_CFLAGS ""
 101                 define SHOBJ_LDFLAGS -shared
 102                 define SH_CFLAGS ""
 103                 define SH_LDFLAGS -shared
 104                 define SH_LINKFLAGS ""
 105                 define SH_SOPREFIX ""
 106                 define LD_LIBRARY_PATH LIBRARY_PATH
 107         }
 108 }
 109
 110 if {![is-defined SHOBJ_LDFLAGS_R]} {
 111         define SHOBJ_LDFLAGS_R [get-define SHOBJ_LDFLAGS]
 112 }