Shorten compile commands run by the build system

The DEFS line in MCONFIG had gotten so long that it exceeded 4k, and
this was starting to cause some tools heartburn.  It also made "make
V=1" almost useless, since trying to following the individual commands
run by make was lost in the noise of all of the defines.

So fix this by putting the configure-generated defines in lib/config.h
and the directory pathnames to lib/dirpaths.h.

In addition, clean up some vestigal defines in configure.in and in the
Makefiles to further shorten the cc command lines.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

25 files changed, 72 insertions, 25 deletions

diff --git a/misc/Makefile.in b/misc/Makefile.in
index d7c4a5e8..cb3c6d9e 100644
--- a/misc/Makefile.in
+++ b/misc/Makefile.in
@@ -75,8 +75,6 @@ PROFILED_FILEFRAG_OBJS=	profiled/filefrag.o
 PROFILED_E2UNDO_OBJS=	profiled/e2undo.o
 PROFILED_E4DEFRAG_OBJS=	profiled/e4defrag.o
 
-XTRA_CFLAGS=	-I$(srcdir)/../e2fsck -I.
-
 SRCS=	$(srcdir)/tune2fs.c $(srcdir)/mklost+found.c $(srcdir)/mke2fs.c \
 		$(srcdir)/chattr.c $(srcdir)/lsattr.c $(srcdir)/dumpe2fs.c \
 		$(srcdir)/badblocks.c $(srcdir)/fsck.c $(srcdir)/util.c \
@@ -119,6 +117,10 @@ prof_err.c prof_err.h: $(srcdir)/../e2fsck/prof_err.et
 	$(E) "	COMPILE_ET prof_err.et"
 	$(Q) $(COMPILE_ET) $(srcdir)/../e2fsck/prof_err.et
 
+profile.h: $(top_srcdir)/e2fsck/profile.h
+	$(E) "	CP $<"
+	$(Q) cp $< $@
+
 default_profile.c: $(srcdir)/mke2fs.conf $(srcdir)/profile-to-c.awk
 	$(E) "	PROFILE_TO_C mke2fs.conf"
 	$(Q) $(AWK) -f $(srcdir)/profile-to-c.awk < $(srcdir)/mke2fs.conf \
@@ -551,7 +553,7 @@ uninstall:
 
 clean:
 	$(RM) -f $(SPROGS) $(USPROGS) $(UPROGS) $(UMANPAGES) $(SMANPAGES) \
-		$(FMANPAGES) \
+		$(FMANPAGES) profile.h \
 		base_device base_device.out mke2fs.static filefrag e2freefrag \
 		e2initrd_helper partinfo prof_err.[ch] default_profile.c \
 		uuidd e2image tune2fs.static tst_ismounted fsck.profiled \
@@ -570,7 +572,8 @@ distclean: clean
 # Makefile dependencies follow.  This must be the last section in
 # the Makefile.in file
 #
-tune2fs.o: $(srcdir)/tune2fs.c $(top_srcdir)/lib/ext2fs/ext2_fs.h \
+tune2fs.o: $(srcdir)/tune2fs.c $(top_builddir)/lib/config.h \
+ $(top_builddir)/lib/dirpaths.h $(top_srcdir)/lib/ext2fs/ext2_fs.h \
  $(top_builddir)/lib/ext2fs/ext2_types.h $(top_srcdir)/lib/ext2fs/ext2fs.h \
  $(top_srcdir)/lib/ext2fs/ext3_extents.h $(top_srcdir)/lib/et/com_err.h \
  $(top_srcdir)/lib/ext2fs/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
@@ -578,26 +581,34 @@ tune2fs.o: $(srcdir)/tune2fs.c $(top_srcdir)/lib/ext2fs/ext2_fs.h \
  $(top_srcdir)/lib/e2p/e2p.h $(srcdir)/jfs_user.h \
  $(top_srcdir)/lib/ext2fs/kernel-jbd.h $(top_srcdir)/lib/ext2fs/jfs_compat.h \
  $(top_srcdir)/lib/ext2fs/kernel-list.h $(srcdir)/util.h \
- $(top_srcdir)/version.h $(srcdir)/nls-enable.h
-mklost+found.o: $(srcdir)/mklost+found.c $(top_srcdir)/lib/ext2fs/ext2_fs.h \
+ $(top_srcdir)/lib/quota/mkquota.h $(top_srcdir)/lib/quota/quota.h \
+ $(top_srcdir)/lib/../e2fsck/dict.h $(top_srcdir)/version.h \
+ $(srcdir)/nls-enable.h
+mklost+found.o: $(srcdir)/mklost+found.c $(top_builddir)/lib/config.h \
+ $(top_builddir)/lib/dirpaths.h $(top_srcdir)/lib/ext2fs/ext2_fs.h \
  $(top_builddir)/lib/ext2fs/ext2_types.h $(top_srcdir)/version.h \
  $(srcdir)/nls-enable.h
-mke2fs.o: $(srcdir)/mke2fs.c $(top_srcdir)/lib/ext2fs/ext2_fs.h \
+mke2fs.o: $(srcdir)/mke2fs.c $(top_builddir)/lib/config.h \
+ $(top_builddir)/lib/dirpaths.h $(top_srcdir)/lib/ext2fs/ext2_fs.h \
  $(top_builddir)/lib/ext2fs/ext2_types.h $(top_srcdir)/lib/ext2fs/ext2fsP.h \
  $(top_srcdir)/lib/ext2fs/ext2fs.h $(top_srcdir)/lib/ext2fs/ext3_extents.h \
  $(top_srcdir)/lib/et/com_err.h $(top_srcdir)/lib/ext2fs/ext2_io.h \
  $(top_builddir)/lib/ext2fs/ext2_err.h \
  $(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/bitops.h \
  $(top_srcdir)/lib/e2p/e2p.h $(top_srcdir)/lib/ext2fs/ext2fs.h \
- $(srcdir)/util.h $(srcdir)/../e2fsck/profile.h prof_err.h \
- $(top_srcdir)/version.h $(srcdir)/nls-enable.h
-chattr.o: $(srcdir)/chattr.c $(top_srcdir)/lib/ext2fs/ext2_fs.h \
+ $(srcdir)/util.h profile.h prof_err.h $(top_srcdir)/version.h \
+ $(srcdir)/nls-enable.h $(top_srcdir)/lib/quota/mkquota.h \
+ $(top_srcdir)/lib/quota/quota.h $(top_srcdir)/lib/../e2fsck/dict.h
+chattr.o: $(srcdir)/chattr.c $(top_builddir)/lib/config.h \
+ $(top_builddir)/lib/dirpaths.h $(top_srcdir)/lib/ext2fs/ext2_fs.h \
  $(top_builddir)/lib/ext2fs/ext2_types.h $(top_srcdir)/lib/et/com_err.h \
  $(top_srcdir)/lib/e2p/e2p.h $(top_srcdir)/version.h $(srcdir)/nls-enable.h
-lsattr.o: $(srcdir)/lsattr.c $(top_srcdir)/lib/ext2fs/ext2_fs.h \
+lsattr.o: $(srcdir)/lsattr.c $(top_builddir)/lib/config.h \
+ $(top_builddir)/lib/dirpaths.h $(top_srcdir)/lib/ext2fs/ext2_fs.h \
  $(top_builddir)/lib/ext2fs/ext2_types.h $(top_srcdir)/lib/et/com_err.h \
  $(top_srcdir)/lib/e2p/e2p.h $(top_srcdir)/version.h $(srcdir)/nls-enable.h
-dumpe2fs.o: $(srcdir)/dumpe2fs.c $(top_srcdir)/lib/ext2fs/ext2_fs.h \
+dumpe2fs.o: $(srcdir)/dumpe2fs.c $(top_builddir)/lib/config.h \
+ $(top_builddir)/lib/dirpaths.h $(top_srcdir)/lib/ext2fs/ext2_fs.h \
  $(top_builddir)/lib/ext2fs/ext2_types.h $(top_srcdir)/lib/ext2fs/ext2fs.h \
  $(top_srcdir)/lib/ext2fs/ext3_extents.h $(top_srcdir)/lib/et/com_err.h \
  $(top_srcdir)/lib/ext2fs/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
@@ -606,44 +617,56 @@ dumpe2fs.o: $(srcdir)/dumpe2fs.c $(top_srcdir)/lib/ext2fs/ext2_fs.h \
  $(top_srcdir)/lib/ext2fs/kernel-jbd.h $(top_srcdir)/lib/ext2fs/jfs_compat.h \
  $(top_srcdir)/lib/ext2fs/kernel-list.h $(top_srcdir)/version.h \
  $(srcdir)/nls-enable.h
-badblocks.o: $(srcdir)/badblocks.c $(top_srcdir)/lib/et/com_err.h \
+badblocks.o: $(srcdir)/badblocks.c $(top_builddir)/lib/config.h \
+ $(top_builddir)/lib/dirpaths.h $(top_srcdir)/lib/et/com_err.h \
  $(top_srcdir)/lib/ext2fs/ext2_io.h $(top_srcdir)/lib/ext2fs/ext2_fs.h \
  $(top_builddir)/lib/ext2fs/ext2_types.h $(top_srcdir)/lib/ext2fs/ext2fs.h \
  $(top_srcdir)/lib/ext2fs/ext3_extents.h \
  $(top_builddir)/lib/ext2fs/ext2_err.h \
  $(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/bitops.h \
  $(srcdir)/nls-enable.h
-fsck.o: $(srcdir)/fsck.c $(top_srcdir)/version.h $(srcdir)/nls-enable.h \
- $(srcdir)/fsck.h
-util.o: $(srcdir)/util.c $(top_srcdir)/lib/et/com_err.h \
+fsck.o: $(srcdir)/fsck.c $(top_builddir)/lib/config.h \
+ $(top_builddir)/lib/dirpaths.h $(top_srcdir)/version.h \
+ $(srcdir)/nls-enable.h $(srcdir)/fsck.h
+util.o: $(srcdir)/util.c $(top_builddir)/lib/config.h \
+ $(top_builddir)/lib/dirpaths.h $(top_srcdir)/lib/et/com_err.h \
  $(top_srcdir)/lib/e2p/e2p.h $(top_srcdir)/lib/ext2fs/ext2_fs.h \
  $(top_builddir)/lib/ext2fs/ext2_types.h $(top_srcdir)/lib/ext2fs/ext2fs.h \
  $(top_srcdir)/lib/ext2fs/ext3_extents.h $(top_srcdir)/lib/ext2fs/ext2_io.h \
  $(top_builddir)/lib/ext2fs/ext2_err.h \
  $(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/bitops.h \
  $(srcdir)/nls-enable.h $(srcdir)/util.h
-uuidgen.o: $(srcdir)/uuidgen.c $(srcdir)/nls-enable.h
-blkid.o: $(srcdir)/blkid.c $(top_srcdir)/lib/ext2fs/ext2fs.h \
+uuidgen.o: $(srcdir)/uuidgen.c $(top_builddir)/lib/config.h \
+ $(top_builddir)/lib/dirpaths.h $(srcdir)/nls-enable.h
+blkid.o: $(srcdir)/blkid.c $(top_builddir)/lib/config.h \
+ $(top_builddir)/lib/dirpaths.h $(top_srcdir)/lib/ext2fs/ext2fs.h \
  $(top_builddir)/lib/ext2fs/ext2_types.h $(top_srcdir)/lib/ext2fs/ext2_fs.h \
  $(top_srcdir)/lib/ext2fs/ext3_extents.h $(top_srcdir)/lib/et/com_err.h \
  $(top_srcdir)/lib/ext2fs/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
  $(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/bitops.h
-logsave.o: $(srcdir)/logsave.c
-filefrag.o: $(srcdir)/filefrag.c $(top_builddir)/lib/ext2fs/ext2_types.h \
+logsave.o: $(srcdir)/logsave.c $(top_builddir)/lib/config.h \
+ $(top_builddir)/lib/dirpaths.h
+filefrag.o: $(srcdir)/filefrag.c $(top_builddir)/lib/config.h \
+ $(top_builddir)/lib/dirpaths.h $(top_builddir)/lib/ext2fs/ext2_types.h \
  $(top_srcdir)/lib/ext2fs/fiemap.h
-base_device.o: $(srcdir)/base_device.c $(srcdir)/fsck.h
-ismounted.o: $(srcdir)/ismounted.c $(srcdir)/fsck.h \
+base_device.o: $(srcdir)/base_device.c $(top_builddir)/lib/config.h \
+ $(top_builddir)/lib/dirpaths.h $(srcdir)/fsck.h
+ismounted.o: $(srcdir)/ismounted.c $(top_builddir)/lib/config.h \
+ $(top_builddir)/lib/dirpaths.h $(srcdir)/fsck.h \
  $(top_srcdir)/lib/et/com_err.h
-profile.o: $(srcdir)/../e2fsck/profile.c $(top_srcdir)/lib/et/com_err.h \
+profile.o: $(srcdir)/../e2fsck/profile.c $(top_builddir)/lib/config.h \
+ $(top_builddir)/lib/dirpaths.h $(top_srcdir)/lib/et/com_err.h \
  $(srcdir)/../e2fsck/profile.h prof_err.h
-e2undo.o: $(srcdir)/e2undo.c $(top_srcdir)/lib/ext2fs/tdb.h \
+e2undo.o: $(srcdir)/e2undo.c $(top_builddir)/lib/config.h \
+ $(top_builddir)/lib/dirpaths.h $(top_srcdir)/lib/ext2fs/tdb.h \
  $(top_srcdir)/lib/ext2fs/ext2fs.h $(top_builddir)/lib/ext2fs/ext2_types.h \
  $(top_srcdir)/lib/ext2fs/ext2_fs.h $(top_srcdir)/lib/ext2fs/ext3_extents.h \
  $(top_srcdir)/lib/et/com_err.h $(top_srcdir)/lib/ext2fs/ext2_io.h \
  $(top_builddir)/lib/ext2fs/ext2_err.h \
  $(top_srcdir)/lib/ext2fs/ext2_ext_attr.h $(top_srcdir)/lib/ext2fs/bitops.h \
  $(srcdir)/nls-enable.h
-e2freefrag.o: $(srcdir)/e2freefrag.c $(top_srcdir)/lib/ext2fs/ext2_fs.h \
+e2freefrag.o: $(srcdir)/e2freefrag.c $(top_builddir)/lib/config.h \
+ $(top_builddir)/lib/dirpaths.h $(top_srcdir)/lib/ext2fs/ext2_fs.h \
  $(top_builddir)/lib/ext2fs/ext2_types.h $(top_srcdir)/lib/ext2fs/ext2fs.h \
  $(top_srcdir)/lib/ext2fs/ext3_extents.h $(top_srcdir)/lib/et/com_err.h \
  $(top_srcdir)/lib/ext2fs/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \
diff --git a/misc/badblocks.c b/misc/badblocks.c
index 1e7e1c84..168d93e6 100644
--- a/misc/badblocks.c
+++ b/misc/badblocks.c
@@ -37,6 +37,7 @@
 #define O_LARGEFILE 0
 #endif
 
+#include "config.h"
 #include <errno.h>
 #include <fcntl.h>
 #ifdef HAVE_GETOPT_H
diff --git a/misc/base_device.c b/misc/base_device.c
index aad2ba05..b2ce1380 100644
--- a/misc/base_device.c
+++ b/misc/base_device.c
@@ -18,6 +18,7 @@
  * License.
  * %End-Header%
  */
+#include "config.h"
 #include <stdio.h>
 #if HAVE_UNISTD_H
 #include <unistd.h>
diff --git a/misc/blkid.c b/misc/blkid.c
index 388abad0..a4a8db0b 100644
--- a/misc/blkid.c
+++ b/misc/blkid.c
@@ -9,6 +9,7 @@
  * %End-Header%
  */
 
+#include "config.h"
 #include <stdio.h>
 #include <stdlib.h>
 #include <unistd.h>
diff --git a/misc/chattr.c b/misc/chattr.c
index de33b083..69aaed1c 100644
--- a/misc/chattr.c
+++ b/misc/chattr.c
@@ -20,6 +20,7 @@
 
 #define _LARGEFILE64_SOURCE
 
+#include "config.h"
 #include <sys/types.h>
 #include <dirent.h>
 #include <fcntl.h>
diff --git a/misc/dumpe2fs.c b/misc/dumpe2fs.c
index 4d2d5c7d..df241c21 100644
--- a/misc/dumpe2fs.c
+++ b/misc/dumpe2fs.c
@@ -20,6 +20,7 @@
  * 94/02/27	- Ported to use the ext2fs library
  */
 
+#include "config.h"
 #ifdef HAVE_GETOPT_H
 #include <getopt.h>
 #else
diff --git a/misc/e2freefrag.c b/misc/e2freefrag.c
index 419c6fc2..b442f324 100644
--- a/misc/e2freefrag.c
+++ b/misc/e2freefrag.c
@@ -11,6 +11,7 @@
  * License version 2.
  * %End-Header%
  */
+#include "config.h"
 #include <stdio.h>
 #ifdef HAVE_UNISTD_H
 #include <unistd.h>
diff --git a/misc/e2image.c b/misc/e2image.c
index f6e06d23..4cd834af 100644
--- a/misc/e2image.c
+++ b/misc/e2image.c
@@ -13,6 +13,7 @@
 #define _LARGEFILE_SOURCE
 #define _LARGEFILE64_SOURCE
 
+#include "config.h"
 #include <fcntl.h>
 #include <grp.h>
 #ifdef HAVE_GETOPT_H
diff --git a/misc/e2initrd_helper.c b/misc/e2initrd_helper.c
index 3d9f5ab5..c98a07a2 100644
--- a/misc/e2initrd_helper.c
+++ b/misc/e2initrd_helper.c
@@ -9,6 +9,7 @@
  * %End-Header%
  */
 
+#include "config.h"
 #include <stdio.h>
 #include <unistd.h>
 #ifdef HAVE_STDLIB_H
diff --git a/misc/e2label.c b/misc/e2label.c
index e96101ae..bc87a428 100644
--- a/misc/e2label.c
+++ b/misc/e2label.c
@@ -11,6 +11,7 @@
  * %End-Header%
  */
 
+#include "config.h"
 #include <stdio.h>
 #include <string.h>
 #include <fcntl.h>
diff --git a/misc/e2undo.c b/misc/e2undo.c
index 04d0b170..c968f912 100644
--- a/misc/e2undo.c
+++ b/misc/e2undo.c
@@ -10,6 +10,7 @@
  * %End-Header%
  */
 
+#include "config.h"
 #include <stdio.h>
 #include <stdlib.h>
 #ifdef HAVE_GETOPT_H
diff --git a/misc/e4defrag.c b/misc/e4defrag.c
index cdf4ffb0..6491edd6 100644
--- a/misc/e4defrag.c
+++ b/misc/e4defrag.c
@@ -19,6 +19,7 @@
 #define _GNU_SOURCE
 #endif
 
+#include "config.h"
 #include <ctype.h>
 #include <dirent.h>
 #include <endian.h>
diff --git a/misc/filefrag.c b/misc/filefrag.c
index b055c2bf..84417574 100644
--- a/misc/filefrag.c
+++ b/misc/filefrag.c
@@ -9,6 +9,7 @@
  * %End-Header%
  */
 
+#include "config.h"
 #ifndef __linux__
 #include <stdio.h>
 #include <stdlib.h>
diff --git a/misc/findsuper.c b/misc/findsuper.c
index e793e3b1..e3baf2e0 100644
--- a/misc/findsuper.c
+++ b/misc/findsuper.c
@@ -83,6 +83,7 @@
 
 #define _FILE_OFFSET_BITS 64
 
+#include "config.h"
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
diff --git a/misc/fsck.c b/misc/fsck.c
index 93452333..9700f18c 100644
--- a/misc/fsck.c
+++ b/misc/fsck.c
@@ -27,6 +27,7 @@
 
 #define _XOPEN_SOURCE 600 /* for inclusion of sa_handler in Solaris */
 
+#include "config.h"
 #include <sys/types.h>
 #include <sys/wait.h>
 #include <sys/signal.h>
diff --git a/misc/ismounted.c b/misc/ismounted.c
index 50b41407..9e8bebfd 100644
--- a/misc/ismounted.c
+++ b/misc/ismounted.c
@@ -9,6 +9,7 @@
  * %End-Header%
  */
 
+#include "config.h"
 #include <stdio.h>
 #if HAVE_UNISTD_H
 #include <unistd.h>
diff --git a/misc/logsave.c b/misc/logsave.c
index 17457a5f..c37473cb 100644
--- a/misc/logsave.c
+++ b/misc/logsave.c
@@ -12,6 +12,7 @@
 
 #define _XOPEN_SOURCE 600 /* for inclusion of sa_handler in Solaris */
 
+#include "config.h"
 #include <stdio.h>
 #include <stdlib.h>
 #include <unistd.h>
diff --git a/misc/lsattr.c b/misc/lsattr.c
index 15b17ad1..1f55db31 100644
--- a/misc/lsattr.c
+++ b/misc/lsattr.c
@@ -19,6 +19,7 @@
 
 #define _LARGEFILE64_SOURCE
 
+#include "config.h"
 #include <sys/types.h>
 #include <dirent.h>
 #ifdef HAVE_ERRNO_H
diff --git a/misc/mke2fs.c b/misc/mke2fs.c
index df694461..1280b3b3 100644
--- a/misc/mke2fs.c
+++ b/misc/mke2fs.c
@@ -18,6 +18,7 @@
 
 #define _XOPEN_SOURCE 600 /* for inclusion of PATH_MAX in Solaris */
 
+#include "config.h"
 #include <stdio.h>
 #include <string.h>
 #include <strings.h>
diff --git a/misc/mklost+found.c b/misc/mklost+found.c
index 8d5fa7be..4f78bdec 100644
--- a/misc/mklost+found.c
+++ b/misc/mklost+found.c
@@ -13,6 +13,7 @@
  * 93/04/22	- Creation
  */
 
+#include "config.h"
 #include <errno.h>
 #include <fcntl.h>
 #include <stdio.h>
diff --git a/misc/partinfo.c b/misc/partinfo.c
index 48b395f6..49660744 100644
--- a/misc/partinfo.c
+++ b/misc/partinfo.c
@@ -7,6 +7,7 @@
  *
  */
 
+#include "config.h"
 #include <sys/types.h>
 #include <fcntl.h>
 #ifdef HAVE_SYS_IOCTL_H
diff --git a/misc/tune2fs.c b/misc/tune2fs.c
index 346e2d17..11ef0958 100644
--- a/misc/tune2fs.c
+++ b/misc/tune2fs.c
@@ -27,6 +27,7 @@
 
 #define _XOPEN_SOURCE 600 /* for inclusion of strptime() */
 #define _BSD_SOURCE /* for inclusion of strcasecmp() */
+#include "config.h"
 #include <fcntl.h>
 #include <grp.h>
 #ifdef HAVE_GETOPT_H
diff --git a/misc/util.c b/misc/util.c
index babdcf9f..4564b4e6 100644
--- a/misc/util.c
+++ b/misc/util.c
@@ -12,6 +12,7 @@
 #define _LARGEFILE_SOURCE
 #define _LARGEFILE64_SOURCE
 
+#include "config.h"
 #include <stdio.h>
 #include <string.h>
 #ifdef HAVE_ERRNO_H
diff --git a/misc/uuidd.c b/misc/uuidd.c
index 912773a1..37e031a5 100644
--- a/misc/uuidd.c
+++ b/misc/uuidd.c
@@ -11,6 +11,7 @@
 
 #define _GNU_SOURCE /* for setres[ug]id() */
 
+#include "config.h"
 #include <stdio.h>
 #ifdef HAVE_STDLIB_H
 #include <stdlib.h>
diff --git a/misc/uuidgen.c b/misc/uuidgen.c
index 7385a5c4..f181d193 100644
--- a/misc/uuidgen.c
+++ b/misc/uuidgen.c
@@ -9,6 +9,7 @@
  * %End-Header%
  */
 
+#include "config.h"
 #include <stdio.h>
 #ifdef HAVE_STDLIB_H
 #include <stdlib.h>