Configure cleanup.

2011-11-09  Janne Blomqvist  <jb@gcc.gnu.org>

	* configure.ac (AC_STDC_HEADERS): Remove.
	(AC_HEADER_TIME): Remove.
	(AC_HAVE_HEADERS, AC_CHECK_HEADERS): Move into a single invocation
	of AC_CHECK_HEADERS_ONCE, don't check for presence of C89 headers.
	(AC_CHECK_MEMBERS): Use single invocation.
	(AC_CHECK_FUNCS): Move into single invocation of
	AC_CHEC_FUNCS_ONCE, don't check for presence of C89 functions.
	* config.h.in: Regenerate.
	* configure: Regenerate.
	* intrinsics/clock.c: Include time.h.
	(mclock): Assume clock() is present.
	(mclock8): Likewise.
	* intrinsics/ctime.c (strctime): Assume strftime is present.
	(fdate): Assume time() is present.
	(fdate_sub): Likewise.
	(ctime): Likewise.
	* intrinsics/date_and_time.c: Don't provide abs macro.
	(HAVE_NO_DATE_TIME): Remove code related to macro which is never
	set.
	* intrinsics/execute_command_line.c: Assume stdlib.h is present.
	* intrinsics/exit.c: Likewise.
	* intrinsics/extends_type_of.c: Likewise.
	* intrinsics/gerror.c: Assume strerror() is present.
	* intrinsics/kill.c: Assume signal.h is present.
	* intrinsics/malloc.c: Assume stdlib.h is present.
	* intrinsics/move_alloc.c: Likewise.
	* intrinsics/perror.c: Assume perror() is present.
	* intrinsics/signal.c: Assume signal.h is present.
	* intrinsics/stat.c: Assume stdlib.h is present.
	* intrinsics/system.c: Likewise.
	* intrinsics/time.c: Include time.h, assume time() is present.
	* intrinsics/time_1.h: Conditionally include sys/time.h,
	unconditionally time.h.
	(gf_cputime): Do division in double, fallback using clock().
	(gf_gettime): Assume time() is present.
	* intrinsics/umask.c: Assume stdlib.h is present.
	* runtime/backtrace.c: Likewise.
	* runtime/compile_options.c: Assume signal.h is present, assume
	C89 signals are present.
	* runtime/error.c: Assume signal.h and stdlib.h are present.

From-SVN: r181227

1 files changed, 6 insertions, 42 deletions

diff --git a/libgfortran/config.h.in b/libgfortran/config.h.in
index 9333f64f8f0..81a4a7fb455 100644
--- a/libgfortran/config.h.in
+++ b/libgfortran/config.h.in
@@ -198,9 +198,6 @@
 /* Define to 1 if you have the `chsize' function. */
 #undef HAVE_CHSIZE
 
-/* Define to 1 if you have the `clock' function. */
-#undef HAVE_CLOCK
-
 /* Define to 1 if you have the `clock_gettime' function. */
 #undef HAVE_CLOCK_GETTIME
 
@@ -228,7 +225,7 @@
 /* Define to 1 if you have the `close' function. */
 #undef HAVE_CLOSE
 
-/* complex.h exists */
+/* Define to 1 if you have the <complex.h> header file. */
 #undef HAVE_COMPLEX_H
 
 /* libm includes copysign */
@@ -381,9 +378,6 @@
 /* Define to 1 if you have the <floatingpoint.h> header file. */
 #undef HAVE_FLOATINGPOINT_H
 
-/* Define to 1 if you have the <float.h> header file. */
-#undef HAVE_FLOAT_H
-
 /* libm includes floor */
 #undef HAVE_FLOOR
 
@@ -435,10 +429,10 @@
 /* Define to 1 if you have the `getcwd' function. */
 #undef HAVE_GETCWD
 
-/* libc includes geteuid */
+/* Define to 1 if you have the `geteuid' function. */
 #undef HAVE_GETEUID
 
-/* libc includes getgid */
+/* Define to 1 if you have the `getgid' function. */
 #undef HAVE_GETGID
 
 /* Define to 1 if you have the `gethostname' function. */
@@ -450,10 +444,10 @@
 /* Define to 1 if you have the `getlogin' function. */
 #undef HAVE_GETLOGIN
 
-/* libc includes getpid */
+/* Define to 1 if you have the `getpid' function. */
 #undef HAVE_GETPID
 
-/* libc includes getppid */
+/* Define to 1 if you have the `getppid' function. */
 #undef HAVE_GETPPID
 
 /* Define to 1 if you have the `getpwuid' function. */
@@ -471,7 +465,7 @@
 /* Define to 1 if you have the `gettimeofday' function. */
 #undef HAVE_GETTIMEOFDAY
 
-/* libc includes getuid */
+/* Define to 1 if you have the `getuid' function. */
 #undef HAVE_GETUID
 
 /* Define to 1 if you have the `gmtime_r' function. */
@@ -606,9 +600,6 @@
 /* libm includes nextafterl */
 #undef HAVE_NEXTAFTERL
 
-/* Define to 1 if you have the `perror' function. */
-#undef HAVE_PERROR
-
 /* Define to 1 if you have the `pipe' function. */
 #undef HAVE_PIPE
 
@@ -654,12 +645,6 @@
 /* Define to 1 if you have the `setmode' function. */
 #undef HAVE_SETMODE
 
-/* Define to 1 if you have the `signal' function. */
-#undef HAVE_SIGNAL
-
-/* Define to 1 if you have the <signal.h> header file. */
-#undef HAVE_SIGNAL_H
-
 /* libm includes sin */
 #undef HAVE_SIN
 
@@ -696,30 +681,18 @@
 /* Define to 1 if you have the `stat' function. */
 #undef HAVE_STAT
 
-/* Define to 1 if you have the <stdarg.h> header file. */
-#undef HAVE_STDARG_H
-
 /* Define to 1 if you have the <stdint.h> header file. */
 #undef HAVE_STDINT_H
 
-/* Define to 1 if you have the <stdio.h> header file. */
-#undef HAVE_STDIO_H
-
 /* Define to 1 if you have the <stdlib.h> header file. */
 #undef HAVE_STDLIB_H
 
 /* Define to 1 if you have the `strcasestr' function. */
 #undef HAVE_STRCASESTR
 
-/* Define to 1 if you have the `strerror' function. */
-#undef HAVE_STRERROR
-
 /* Define to 1 if you have the `strerror_r' function. */
 #undef HAVE_STRERROR_R
 
-/* Define to 1 if you have the `strftime' function. */
-#undef HAVE_STRFTIME
-
 /* Define to 1 if you have the <strings.h> header file. */
 #undef HAVE_STRINGS_H
 
@@ -792,15 +765,9 @@
 /* libm includes tgammal */
 #undef HAVE_TGAMMAL
 
-/* Define to 1 if you have the `time' function. */
-#undef HAVE_TIME
-
 /* Define to 1 if you have the `times' function. */
 #undef HAVE_TIMES
 
-/* Define to 1 if you have the <time.h> header file. */
-#undef HAVE_TIME_H
-
 /* libm includes trunc */
 #undef HAVE_TRUNC
 
@@ -907,9 +874,6 @@
 /* Define to 1 if the target supports #pragma weak */
 #undef SUPPORTS_WEAK
 
-/* Define to 1 if you can safely include both <sys/time.h> and <time.h>. */
-#undef TIME_WITH_SYS_TIME
-
 /* Enable extensions on AIX 3, Interix.  */
 #ifndef _ALL_SOURCE
 # undef _ALL_SOURCE