Further enhance the check for needed tools:
- update the tool_pattern to use ' || ' as a pattern separator
- which allows using | in regexp
- add checks for cut and xargs
- manually check for grep and sed because they are needed when checking for tools
- print why a test failed, with each tested tool and regexp
- move tools checks before options parsing
- apply conttibutions before computing the version string
- inform user to run make && make install

/trunk/configure | 173 111 62 0 ++++++++++++++++++++++++++++++++++++++++----------------------
1 file changed, 111 insertions(+), 62 deletions(-)

 diff -durN glibc-ports-2.7.orig/sysdeps/unix/sysv/linux/arm/ioperm.c glibc-ports-2.7/sysdeps/unix/sysv/linux/arm/ioperm.c

 --- glibc-2.7.orig/glibc-ports-2.7/sysdeps/unix/sysv/linux/arm/ioperm.c	2005-06-10 13:12:09.000000000 +0200

 +++ glibc-2.7/glibc-ports-2.7/sysdeps/unix/sysv/linux/arm/ioperm.c	2008-05-18 16:19:45.000000000 +0200

 @@ -45,7 +45,6 @@

  #include <sys/mman.h>

  #include <linux/version.h>

 -#include <asm/page.h>

  #include <sys/sysctl.h>

  #define PATH_ARM_SYSTYPE	"/etc/arm_systype"