system.h (strstr): New external function declaration.

�
        * system.h (strstr): New external function declaration.
        * acconfig.h (NEED_DECLARATION_STRSTR): New define slot.
        * configure.in (GCC_NEED_DECLARATIONS): Check for strstr.
        * config.in, configure: Rebuilt.

From-SVN: r27747

gcc/configure.in

@@ -406,7 +406,7 @@ AC_FUNC_VFORK
 
 GCC_NEED_DECLARATIONS(malloc realloc calloc free bcopy bzero bcmp \
 	index rindex getenv atol sbrk abort atof strerror getcwd getwd \
-	strsignal putc_unlocked fputs_unlocked)
+	strsignal putc_unlocked fputs_unlocked strstr)
 
 GCC_NEED_DECLARATIONS(getrlimit setrlimit, [
 #include <sys/types.h>