cross-compile: patch for configure.in

[Jan Nieuwenhuizen <janneke at gnu dot org>]

Hi,

Here's a simple fix that I had to make to enables cross-configuration.  It 
allows you to set:

    --enable-sizeof-int
    --enable-sizeof-long
    --enable-restartable-syscalls

Greetings,

Jan.


diff -urN ../guile-core/ChangeLog ./ChangeLog
--- ../guile-core/ChangeLog	Thu Mar 23 12:32:21 2000
+++ ./ChangeLog	Thu Mar 23 12:38:58 2000
@@ -1,3 +1,9 @@
+2000-03-23    <janneke@gnu.org>
+
+	* configure.in: added options to enable cross-compilation:
+	--enable-sizeof-int, --enable-sizeof-long,
+	--enable-restartable-syscalls.
+
 2000-03-19  Mikael Djurfeldt  <mdj@thalamus.nada.kth.se>
 
 	* devel: New directory.  Intended to carry documentation related
diff -urN ../guile-core/configure.in ./configure.in
--- ../guile-core/configure.in	Thu Mar 23 12:32:21 2000
+++ ./configure.in	Thu Mar 23 12:34:03 2000
@@ -68,6 +68,21 @@
   [  --disable-regex         omit regular expression interfaces],,
   enable_regex=yes)
 
+sizeof_int=0
+AC_ARG_ENABLE(sizeof-int, 
+  [  --enable-sizeof-int     Set size of int (for cross compilation)],
+  [sizeof_int=$enableval])
+    
+sizeof_long=0
+AC_ARG_ENABLE(sizeof-long, 
+  [  --enable-sizeof-long    Set size of long (for cross compilation)],
+  [sizeof_long=$enableval])
+    
+restartable_syscalls=test
+AC_ARG_ENABLE(restartable-syscalls,
+  [  --enable-restartable syscalls  Are interrupted syscalls restarted (for cross compilation)],
+  [restartable_syscalls=$enableval])
+    
 dnl The --disable-debug used to control these two.  But now they are
 dnl a required part of the distribution.
 AC_DEFINE(DEBUG_EXTENSIONS)
@@ -108,8 +123,8 @@
 
 AC_C_CONST
 AC_C_INLINE
-AC_CHECK_SIZEOF(int)
-AC_CHECK_SIZEOF(long)
+AC_CHECK_SIZEOF(int, $sizeof_int)
+AC_CHECK_SIZEOF(long, $sizeof_long)
 AC_CACHE_CHECK([for long longs], scm_cv_long_longs,
 	       AC_TRY_COMPILE(,
 			      [long long a],
@@ -299,7 +314,15 @@
 dnl behaviour for some reason: e.g., different versions of linux seem
 dnl to behave differently.)
 
-AC_SYS_RESTARTABLE_SYSCALLS
+if test "$restartable_syscalls" = yes ||
+   test "$restartable_syscalls" = y; then
+   AC_DEFINE(HAVE_RESTARTABLE_SYSCALLS)
+elif test "$restartable_syscalls" = no ||
+     test "$restartable_syscalls" = n; then
+   ;
+else
+   AC_SYS_RESTARTABLE_SYSCALLS
+fi
 
 if test "$enable_regex" = yes; then
    if test "$ac_cv_header_regex_h" = yes ||
@@ -362,7 +385,7 @@
 AC_TRY_RUN(aux (l) unsigned long l;
 	     { int x; exit (l >= ((unsigned long)&x)); }
 	   main () { int q; aux((unsigned long)&q); }, 
-	   AC_DEFINE(SCM_STACK_GROWS_UP),,AC_MSG_WARN(Guessing that stack grows down -- see scmconfig.h.in))
+	   AC_DEFINE(SCM_STACK_GROWS_UP),,AC_MSG_WARN(Guessing that stack grows down -- see scmconfig.h.in), AC_DEFINE(SCM_STACK_GROWS_DOWN))
 
 AC_CACHE_CHECK([whether floats fit in longs], guile_cv_type_float_fits_long,
     [AC_TRY_RUN([main () { exit (sizeof(float) > sizeof(long)); }],


-- 
Jan Nieuwenhuizen <janneke@gnu.org> | GNU LilyPond - The music typesetter
http://www.xs4all.nl/~jantien       | http://www.lilypond.org