The first steps towards cross-compilation.

Abstract execution of compiled test executables with $run,
and abstract transfer of files with $to and $from.

Under cross-compilation the $run, $to, and $from will point
to appropriate wrapper scripts, by default ssh and scp,
but also rsh, rcp, and cp are supported.  If not
cross-compiling, they will be set to '', ':', and ':',
respectively.

With these patches I was able to get Configure for
iPAQ ARM Linux on an Intel Linux about 95% right
(only a few tests failed to execute or they produced
incorrect results), and I was able to compile
a functional miniperl.

The symbol crosscompile renamed to be usecrosscompile,
the corresponding C symbol from CROSSCOMPILE to
USE_CROSS_COMPILE.

p4raw-id: //depot/perl@10592

6 files changed, 9 insertions, 27 deletions

diff --git a/win32/config.bc b/win32/config.bc
index e1eeca8971..a47e40534f 100644
--- a/win32/config.bc
+++ b/win32/config.bc
@@ -68,7 +68,6 @@ cppminus=''
 cpprun='cpp32 -oCON'
 cppstdin='cpp32 -oCON'
 cppsymbols=''
-crosscompile='undef'
 cryptlib=''
 csh='undef'
 d_Gconvert='gcvt((x),(n),(b))'
@@ -783,6 +782,7 @@ uquadtype='unsigned __int64'
 use5005threads='undef'
 use64bitall='undef'
 use64bitint='undef'
+usecrosscompile='undef'
 usedl='define'
 useithreads='undef'
 uselargefiles='undef'
diff --git a/win32/config.gc b/win32/config.gc
index 7085cd20d3..38c7a15f6b 100644
--- a/win32/config.gc
+++ b/win32/config.gc
@@ -68,7 +68,6 @@ cppminus='-'
 cpprun='gcc -E'
 cppstdin='gcc -E'
 cppsymbols=''
-crosscompile='undef'
 cryptlib=''
 csh='undef'
 d_Gconvert='sprintf((b),"%.*g",(n),(x))'
@@ -783,6 +782,7 @@ uquadtype='unsigned long long'
 use5005threads='undef'
 use64bitall='undef'
 use64bitint='undef'
+usecrosscompile='undef'
 usedl='define'
 useithreads='undef'
 uselargefiles='undef'
diff --git a/win32/config.vc b/win32/config.vc
index c01ce0c8ae..2e0bae22e0 100644
--- a/win32/config.vc
+++ b/win32/config.vc
@@ -68,7 +68,6 @@ cppminus=''
 cpprun='cl -nologo -E'
 cppstdin='cl -nologo -E'
 cppsymbols=''
-crosscompile='undef'
 cryptlib=''
 csh='undef'
 d_Gconvert='sprintf((b),"%.*g",(n),(x))'
@@ -783,6 +782,7 @@ uquadtype='unsigned __int64'
 use5005threads='undef'
 use64bitall='undef'
 use64bitint='undef'
+usecrosscompile='undef'
 usedl='define'
 useithreads='undef'
 uselargefiles='undef'
diff --git a/win32/config_H.bc b/win32/config_H.bc
index b1de84b871..c85c2e2343 100644
--- a/win32/config_H.bc
+++ b/win32/config_H.bc
@@ -962,12 +962,6 @@
  */
 #define SH_PATH "cmd /x /c"  /**/
 
-/* CROSSCOMPILE:
- *	This symbol, if defined, signifies that we our
- *	build process is a cross-compilation.
- */
-/*#define CROSSCOMPILE		/**/
-
 /* INTSIZE:
  *	This symbol contains the value of sizeof(int) so that the C
  *	preprocessor can make decisions based on it.
@@ -1051,7 +1045,7 @@
  *	double, or a long double when applicable. Usual values are 2,
  *	4 and 8. The default is eight, for safety.
  */
-#if defined(CROSSCOMPILE) || defined(MULTIARCH)
+#if defined(USE_CROSS_COMPILE) || defined(MULTIARCH)
 #  define MEM_ALIGNBYTES 8
 #else
 #define MEM_ALIGNBYTES 8
@@ -1128,7 +1122,7 @@
  *	so the default case (for NeXT) is big endian to catch them. 
  *	This might matter for NeXT 3.0.
  */
-#if defined(CROSSCOMPILE) || defined(MULTIARCH)
+#if defined(USE_CROSS_COMPILE) || defined(MULTIARCH)
 #  ifdef __LITTLE_ENDIAN__
 #    if LONGSIZE == 4
 #      define BYTEORDER 0x1234
diff --git a/win32/config_H.gc b/win32/config_H.gc
index 8025e52fe4..945fa8adbd 100644
--- a/win32/config_H.gc
+++ b/win32/config_H.gc
@@ -962,12 +962,6 @@
  */
 #define SH_PATH "cmd /x /c"  /**/
 
-/* CROSSCOMPILE:
- *	This symbol, if defined, signifies that we our
- *	build process is a cross-compilation.
- */
-/*#define CROSSCOMPILE		/**/
-
 /* INTSIZE:
  *	This symbol contains the value of sizeof(int) so that the C
  *	preprocessor can make decisions based on it.
@@ -1051,7 +1045,7 @@
  *	double, or a long double when applicable. Usual values are 2,
  *	4 and 8. The default is eight, for safety.
  */
-#if defined(CROSSCOMPILE) || defined(MULTIARCH)
+#if defined(USE_CROSS_COMPILE) || defined(MULTIARCH)
 #  define MEM_ALIGNBYTES 8
 #else
 #define MEM_ALIGNBYTES 8
@@ -1128,7 +1122,7 @@
  *	so the default case (for NeXT) is big endian to catch them. 
  *	This might matter for NeXT 3.0.
  */
-#if defined(CROSSCOMPILE) || defined(MULTIARCH)
+#if defined(USE_CROSS_COMPILE) || defined(MULTIARCH)
 #  ifdef __LITTLE_ENDIAN__
 #    if LONGSIZE == 4
 #      define BYTEORDER 0x1234
diff --git a/win32/config_H.vc b/win32/config_H.vc
index ca07d2bc72..ab4927d35f 100644
--- a/win32/config_H.vc
+++ b/win32/config_H.vc
@@ -962,12 +962,6 @@
  */
 #define SH_PATH "cmd /x /c"  /**/
 
-/* CROSSCOMPILE:
- *	This symbol, if defined, signifies that we our
- *	build process is a cross-compilation.
- */
-/*#define CROSSCOMPILE		/**/
-
 /* INTSIZE:
  *	This symbol contains the value of sizeof(int) so that the C
  *	preprocessor can make decisions based on it.
@@ -1051,7 +1045,7 @@
  *	double, or a long double when applicable. Usual values are 2,
  *	4 and 8. The default is eight, for safety.
  */
-#if defined(CROSSCOMPILE) || defined(MULTIARCH)
+#if defined(USE_CROSS_COMPILE) || defined(MULTIARCH)
 #  define MEM_ALIGNBYTES 8
 #else
 #define MEM_ALIGNBYTES 8
@@ -1128,7 +1122,7 @@
  *	so the default case (for NeXT) is big endian to catch them. 
  *	This might matter for NeXT 3.0.
  */
-#if defined(CROSSCOMPILE) || defined(MULTIARCH)
+#if defined(USE_CROSS_COMPILE) || defined(MULTIARCH)
 #  ifdef __LITTLE_ENDIAN__
 #    if LONGSIZE == 4
 #      define BYTEORDER 0x1234