Add haiku shared objects support in libtool

Author: dixyes

build/libtool.m4

@@ -1027,7 +1027,7 @@ else
   lt_cv_dlopen_libs=
 
   case $host_os in
-  beos*)
+  beos* | haiku*)
     lt_cv_dlopen="load_add_on"
     lt_cv_dlopen_libs=
     lt_cv_dlopen_self=yes
@@ -1438,6 +1438,17 @@ beos*)
   shlibpath_var=LIBRARY_PATH
   ;;
 
+haiku*)
+  # Since haiku provides gcc, use GNU style here
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}${major} ${libname}${shared_ext}'
+  soname_spec='${libname}${release}${shared_ext}$major'
+  shlibpath_var=LIBRARY_PATH
+  hardcode_into_libs=yes
+  ;;
+
 bsdi[[45]]*)
   version_type=linux
   need_version=no
@@ -2390,7 +2401,7 @@ aix[[4-9]]*)
   lt_cv_deplibs_check_method=pass_all
   ;;
 
-beos*)
+beos* | haiku*)
   lt_cv_deplibs_check_method=pass_all
   ;;
 
@@ -2616,7 +2627,7 @@ AC_DEFUN([AC_CHECK_LIBM],
 [AC_REQUIRE([AC_CANONICAL_HOST])dnl
 LIBM=
 case $host in
-*-*-beos* | *-*-cygwin* | *-*-pw32* | *-*-darwin*)
+*-*-beos* | *-*-cygwin* | *-*-pw32* | *-*-darwin* | *-*-haiku*)
   # These system don't have libm, or don't need it
   ;;
 *-ncr-sysv4.3*)
@@ -4756,7 +4767,7 @@ AC_MSG_CHECKING([for $compiler option to produce PIC])
       # like `-m68040'.
       _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)='-m68020 -resident32 -malways-restore-a4'
       ;;
-    beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
+    beos* | haiku* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
       # PIC is the default for these OSes.
       ;;
     mingw* | cygwin* | os2* | pw32*)
@@ -5045,7 +5056,7 @@ AC_MSG_CHECKING([for $compiler option to produce PIC])
       _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)='-m68020 -resident32 -malways-restore-a4'
       ;;
 
-    beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
+    beos* | haiku* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
       # PIC is the default for these OSes.
       ;;