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# Copyright (c) 2010 WorkWare Systems http://www.workware.net.au/
# All rights reserved
# @synopsis:
#
# The 'cc-shared' module provides support for shared libraries and shared objects.
# It defines the following variables:
#
## SH_CFLAGS Flags to use compiling sources destined for a shared library
## SH_LDFLAGS Flags to use linking (creating) a shared library
## SH_SOPREFIX Prefix to use to set the soname when creating a shared library
## SH_SOEXT Extension for shared libs
## SH_SOEXTVER Format for versioned shared libs - %s = version
## SHOBJ_CFLAGS Flags to use compiling sources destined for a shared object
## SHOBJ_LDFLAGS Flags to use linking a shared object, undefined symbols allowed
## SHOBJ_LDFLAGS_R - as above, but all symbols must be resolved
## SH_LINKFLAGS Flags to use linking an executable which will load shared objects
## LD_LIBRARY_PATH Environment variable which specifies path to shared libraries
## STRIPLIBFLAGS Arguments to strip to strip a dynamic library
module-options {}
# Defaults: gcc on unix
define SHOBJ_CFLAGS -fpic
define SHOBJ_LDFLAGS -shared
define SH_CFLAGS -fpic
define SH_LDFLAGS -shared
define SH_LINKFLAGS -rdynamic
define SH_SOEXT .so
define SH_SOEXTVER .so.%s
define SH_SOPREFIX -Wl,-soname,
define LD_LIBRARY_PATH LD_LIBRARY_PATH
define STRIPLIBFLAGS --strip-unneeded
# Note: This is a helpful reference for identifying the toolchain
# http://sourceforge.net/apps/mediawiki/predef/index.php?title=Compilers
switch -glob -- [get-define host] {
*-*-darwin* {
define SHOBJ_CFLAGS "-dynamic -fno-common"
define SHOBJ_LDFLAGS "-bundle -undefined dynamic_lookup"
define SHOBJ_LDFLAGS_R -bundle
define SH_CFLAGS -dynamic
define SH_LDFLAGS -dynamiclib
define SH_LINKFLAGS ""
define SH_SOEXT .dylib
define SH_SOEXTVER .%s.dylib
define SH_SOPREFIX -Wl,-install_name,
define LD_LIBRARY_PATH DYLD_LIBRARY_PATH
define STRIPLIBFLAGS -x
}
*-*-ming* - *-*-cygwin - *-*-msys {
define SHOBJ_CFLAGS ""
define SHOBJ_LDFLAGS -shared
define SH_CFLAGS ""
define SH_LDFLAGS -shared
define SH_LINKFLAGS ""
define SH_SOEXT .dll
define SH_SOEXTVER .dll
define SH_SOPREFIX ""
define LD_LIBRARY_PATH PATH
}
sparc* {
if {[msg-quiet cc-check-decls __SUNPRO_C]} {
msg-result "Found sun stdio compiler"
# sun stdio compiler
# XXX: These haven't been fully tested.
define SHOBJ_CFLAGS -KPIC
define SHOBJ_LDFLAGS "-G"
define SH_CFLAGS -KPIC
define SH_LINKFLAGS -Wl,-export-dynamic
define SH_SOPREFIX -Wl,-h,
} else {
# sparc has a very small GOT table limit, so use -fPIC
define SH_CFLAGS -fPIC
define SHOBJ_CFLAGS -fPIC
}
}
*-*-solaris* {
if {[msg-quiet cc-check-decls __SUNPRO_C]} {
msg-result "Found sun stdio compiler"
# sun stdio compiler
# XXX: These haven't been fully tested.
define SHOBJ_CFLAGS -KPIC
define SHOBJ_LDFLAGS "-G"
define SH_CFLAGS -KPIC
define SH_LINKFLAGS -Wl,-export-dynamic
define SH_SOPREFIX -Wl,-h,
}
}
*-*-hpux {
# XXX: These haven't been tested
define SHOBJ_CFLAGS "+O3 +z"
define SHOBJ_LDFLAGS -b
define SH_CFLAGS +z
define SH_LINKFLAGS -Wl,+s
define LD_LIBRARY_PATH SHLIB_PATH
}
*-*-haiku {
define SHOBJ_CFLAGS ""
define SHOBJ_LDFLAGS -shared
define SH_CFLAGS ""
define SH_LDFLAGS -shared
define SH_LINKFLAGS ""
define SH_SOPREFIX ""
define LD_LIBRARY_PATH LIBRARY_PATH
}
}
if {![is-defined SHOBJ_LDFLAGS_R]} {
define SHOBJ_LDFLAGS_R [get-define SHOBJ_LDFLAGS]
}
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