Description of the build of bc (version 1.06) including dc (version 1.3) on OpenVMS Alpha.
First you have to make certain that your VMS-system has GNV version 1.5-6 loaded including bash 1.11. See this page. for build instruction of bash 1.11.
Make certain that you have the following statements in your login.com:
$! start gnv
$ @GNU:[lib]GNV_SETUP.COM
$!
$! setup tools
$ set proc/parse_style=extended
$ set process /case_lookup=(blind)
$ define/job decc$pipe_buffer_size 65000
$
$
$ scratch = f$trnlnm("sys$login") - "]" + ".temp]"
$ define/job sys$scratch 'scratch'
$
make a .bashrc in your login directory with at least the following statements:
# .bashrc # PATH=$PATH:/usr/bin:/usr/local/bin export PATH export GNV_DISABLE_DCL_FALLBACK=1After you have a working build environment, you can fetch the sourcefile of bc 1.06 from http://ftp.gnu.org/pub/gnu/bc/bc-1.06.tar.gz
After you have copied this file to your working directory, you can start the build of bc.
$ dir
Directory USERS:[user4]
.bashrc;1 10_0_0_150_0.LOG;1 BC-1_06_TAR.GZ;1 dt.DIR;1
login.com;1 temp.DIR;1
Total of 6 files.
$ bash
bash$ ls -l
total 274
-rwxr-x--- 1 USER4 159 468 May 28 21:44 10_0_0_150_0.LOG
-rwxr-x--- 1 USER4 159 278926 May 28 21:43 BC-1_06_TAR.GZ
drwxr-xr-x 1 USER4 159 512 May 28 21:45 dt
-rwxr-x--- 1 USER4 159 390 May 24 20:20 login.com
drwxr-x--x 1 USER4 159 512 May 24 20:20 temp
bash$ gunzip BC-1_06_TAR.GZ
bash$ ls -l
total 1072
-rwxr-x--- 1 USER4 159 468 May 28 21:44 10_0_0_150_0.LOG
-rwxr-x--- 1 USER4 159 1095680 May 28 21:43 BC-1_06_TAR
drwxr-xr-x 1 USER4 159 512 May 28 21:45 dt
-rwxr-x--- 1 USER4 159 390 May 24 20:20 login.com
drwxr-x--x 1 USER4 159 512 May 24 20:20 temp
bash$ pax -rvf BC-1_06_TAR
USTAR format archive assumed
bc-1.06/Makefile.in
bc-1.06/README
bc-1.06/stamp-h.in
bc-1.06/AUTHORS
bc-1.06/COPYING
bc-1.06/COPYING.LIB
bc-1.06/ChangeLog
bc-1.06/INSTALL
bc-1.06/Makefile.am
bc-1.06/NEWS
bc-1.06/acconfig.h
bc-1.06/aclocal.m4
bc-1.06/config.h.in
bc-1.06/configure
bc-1.06/configure.in
bc-1.06/install-sh
bc-1.06/missing
bc-1.06/mkinstalldirs
bc-1.06/lib/Makefile.in
bc-1.06/lib/Makefile.am
bc-1.06/lib/getopt.c
bc-1.06/lib/getopt1.c
bc-1.06/lib/vfprintf.c
bc-1.06/lib/number.c
bc-1.06/lib/testmul.c
bc-1.06/bc/Makefile.in
bc-1.06/bc/Makefile.am
bc-1.06/bc/bc.c
bc-1.06/bc/scan.c
bc-1.06/bc/main.c
bc-1.06/bc/bc.y
bc-1.06/bc/scan.l
bc-1.06/bc/execute.c
bc-1.06/bc/load.c
bc-1.06/bc/storage.c
bc-1.06/bc/util.c
bc-1.06/bc/global.c
bc-1.06/bc/libmath.h
bc-1.06/bc/bc.h
bc-1.06/bc/bcdefs.h
bc-1.06/bc/const.h
bc-1.06/bc/fix-libmath_h
bc-1.06/bc/global.h
bc-1.06/bc/libmath.b
bc-1.06/bc/proto.h
bc-1.06/bc/sbc.y
bc-1.06/dc/Makefile.in
bc-1.06/dc/Makefile.am
bc-1.06/dc/dc.c
bc-1.06/dc/misc.c
bc-1.06/dc/eval.c
bc-1.06/dc/stack.c
bc-1.06/dc/array.c
bc-1.06/dc/numeric.c
bc-1.06/dc/string.c
bc-1.06/dc/dc.h
bc-1.06/dc/dc-proto.h
bc-1.06/dc/dc-regdef.h
bc-1.06/doc/Makefile.in
bc-1.06/doc/Makefile.am
bc-1.06/doc/texinfo.tex
bc-1.06/doc/bc.texi
bc-1.06/doc/dc.texi
bc-1.06/doc/bc.1
bc-1.06/doc/dc.1
bc-1.06/doc/bc.info
bc-1.06/doc/dc.info
bc-1.06/h/getopt.h
bc-1.06/h/number.h
bc-1.06/Examples/ckbook.b
bc-1.06/Examples/pi.b
bc-1.06/Examples/primes.b
bc-1.06/Examples/twins.b
bc-1.06/Test/array.b
bc-1.06/Test/arrayp.b
bc-1.06/Test/aryprm.b
bc-1.06/Test/atan.b
bc-1.06/Test/checklib.b
bc-1.06/Test/div.b
bc-1.06/Test/exp.b
bc-1.06/Test/fact.b
bc-1.06/Test/jn.b
bc-1.06/Test/ln.b
bc-1.06/Test/mul.b
bc-1.06/Test/raise.b
bc-1.06/Test/sine.b
bc-1.06/Test/sqrt.b
bc-1.06/Test/sqrt1.b
bc-1.06/Test/sqrt2.b
bc-1.06/Test/testfn.b
bc-1.06/Test/BUG.bc
bc-1.06/Test/signum
bc-1.06/Test/timetest
bc-1.06/FAQ
bash$ ls
10_0_0_150_0.LOG BC-1_06_TAR bc-1.06 dt login.com temp
bash$ cd bc-1.06
bash$ ls
AUTHORS FAQ README config.h.in h stamp-h.in
COPYING INSTALL Test configure install-sh
COPYING.LIB Makefile.am acconfig.h configure.in lib
ChangeLog Makefile.in aclocal.m4 dc missing
Examples NEWS bc doc mkinstalldirs
bash$ ./configure --build=alpha-hp-vms
creating cache ./config.cache
checking for a BSD compatible install... /gnu/bin/install -c
checking whether build environment is sane... yes
checking whether make sets ${MAKE}... yes
checking for working aclocal... missing
checking for working autoconf... found
checking for working automake... missing
checking for working autoheader...
missing-W-NOSUCHFILE, no such file
checking for working makeinfo... missing
checking for gcc... gcc
checking whether the C compiler (gcc ) works... yes
checking whether the C compiler (gcc ) is a cross-compiler... no
checking whether we are using GNU C... no
checking whether gcc accepts -g... yes
checking how to run the C preprocessor... gcc -E
checking for minix/config.h... no
checking for flex... flex
checking for flex... (cached) flex
checking for yywrap in -lfl... no
checking lex output file root...
STAR::_FTA44: 21:55:50 BASH CPU=00:00:00.70 PF=1028 IO=1645 MEM=292
STAR::USER4_118 21:55:50 SH CPU=00:00:03.15 PF=441 IO=8674 MEM=304
STAR::USER4_64 21:55:50 flex CPU=00:00:00.07 PF=232 IO=144 MEM=185
STAR::USER4_118 21:56:30 SH CPU=00:00:03.15 PF=441 IO=8675 MEM=304
STAR::USER4_64 21:56:30 flex CPU=00:00:00.07 PF=232 IO=145 MEM=185
lex.yy_FTA44: 21:56:30 BASH CPU=00:00:00.71 PF=1028 IO=1646 MEM=292
At this point the configure script hangs...
From a suffently privileged account stop the last sub-process (here USER4_64) with a stop/id='pid'.
The cause of this hang is being investigated, but as the build of bc isn't hindered by the hang, we'll carry on...
checking whether yytext is a pointer... no
checking for bison... bison -y
checking for a BSD compatible install... /gnu/bin/install -c
checking for ranlib... :
checking whether make sets ${MAKE}... (cached) yes
checking for stdarg.h... yes
checking for stddef.h... yes
checking for stdlib.h... yes
checking for string.h... yes
checking for limits.h... yes
checking for unistd.h... yes
checking for lib.h... no
checking for working const... yes
checking for ANSI C header files... yes
checking for size_t... yes
checking for ptrdiff_t... yes
checking for vprintf... yes
checking for isgraph... yes
checking for setvbuf... yes
updating cache ./config.cache
creating ./config.status
creating Makefile
creating bc/Makefile
creating dc/Makefile
creating doc/Makefile
creating lib/Makefile
creating config.h
bash$
We have to make some modification to a few files to reduce the number of warnings.The differences are as follows
bc/Makefile,
bash$ dcl diff makefile.
************
File USERS:[user4.bc-1^.06.bc]Makefile.;2
88 #CFLAGS = -g -Wall -funsigned-char
89 CFLAGS = -g -Wc/WARN -Wc/UNSIGNED_CHAR
90
******
File USERS:[user4.bc-1^.06.bc]Makefile.;1
88 CFLAGS = -g -Wall -funsigned-char
89
************
Number of difference sections found: 1
Number of difference records found: 2
DIFFERENCES /IGNORE=()/MERGED=1-
USERS:[user4.bc-1^.06.bc]Makefile.;2-
USERS:[user4.bc-1^.06.bc]Makefile.;1
bash$
dc/Makefile,
bash$ dcl diff makefile.
************
File USERS:[user4.bc-1^.06.dc]Makefile.;2
79 #CFLAGS = -g -Wall -funsigned-char
80 CFLAGS = -g -Wc/WARN -Wc/UNSIGNED_CHAR
81 mkinstalldirs = $(SHELL) $(top_srcdir)/mkinstalldirs
******
File USERS:[user4.bc-1^.06.dc]Makefile.;1
79 CFLAGS = -g -Wall -funsigned-char
80 mkinstalldirs = $(SHELL) $(top_srcdir)/mkinstalldirs
************
Number of difference sections found: 1
Number of difference records found: 2
DIFFERENCES /IGNORE=()/MERGED=1-
USERS:[user4.bc-1^.06.dc]Makefile.;2-
USERS:[user4.bc-1^.06.dc]Makefile.;1
bash$
lib/Makefile,
bash$ dcl diff makefile.
************
File USERS:[user4.bc-1^.06.lib]Makefile.;2
77 # CFLAGS = -g -Wall -funsigned-char
78 CFLAGS = -g -Wc/WARN -Wc/UNSIGNED_CHAR
79
******
File USERS:[user4.bc-1^.06.lib]Makefile.;1
77 CFLAGS = -g -Wall -funsigned-char
78
************
Number of difference sections found: 1
Number of difference records found: 2
DIFFERENCES /IGNORE=()/MERGED=1-
USERS:[user4.bc-1^.06.lib]Makefile.;2-
USERS:[user4.bc-1^.06.lib]Makefile.;1
bash$
lib/getopt.c,
bash$ dcl diff getopt.c
************
File USERS:[user4.bc-1^.06.lib]getopt.c;2
170 #include <string.h>
171
******
File USERS:[user4.bc-1^.06.lib]getopt.c;1
170
************
Number of difference sections found: 1
Number of difference records found: 1
DIFFERENCES /IGNORE=()/MERGED=1-
USERS:[user4.bc-1^.06.lib]getopt.c;2-
USERS:[user4.bc-1^.06.lib]getopt.c;1
bash$
lib/number.c,
bash$ dcl diff number.c
************
File USERS:[user4.bc-1^.06.lib]number.c;2
38 #include <string.h>
39
******
File USERS:[user4.bc-1^.06.lib]number.c;1
38
************
Number of difference sections found: 1
Number of difference records found: 1
DIFFERENCES /IGNORE=()/MERGED=1-
USERS:[user4.bc-1^.06.lib]number.c;2-
USERS:[user4.bc-1^.06.lib]number.c;1
bash$
config.h.
bash$ dcl diff config.h
************
File USERS:[user4.bc-1^.06]config.h;2
83 #define getopt my_getopt
84 #define optarg myoptarg
85 #define optopt myoptopt
86 #define optind myoptind
87 #define opterr myopterr
******
File USERS:[user4.bc-1^.06]config.h;1
************
Number of difference sections found: 1
Number of difference records found: 5
DIFFERENCES /IGNORE=()/MERGED=1-
USERS:[user4.bc-1^.06]config.h;2-
USERS:[user4.bc-1^.06]config.h;1
bash$
If the GNV and GNU build environment on OpenVMS improves over time, we hope the warnings, errors and adaptions will eventually disapear.
bash$ make all
make all-recursive
make[1]: Entering directory `/USERS/user4/bc-1.06'
Making all in lib
make[2]: Entering directory `/USERS/user4/bc-1.06/lib'
Makefile:132: warning: overriding commands for target `.s.o'
Makefile:129: warning: ignoring old commands for target `.s.o'
gcc -DHAVE_CONFIG_H -I. -I.. -I./../h -g -Wc/WARN -Wc/UNSIGNED_CHAR -c
getopt.c
gcc -DHAVE_CONFIG_H -I. -I.. -I./../h -g -Wc/WARN -Wc/UNSIGNED_CHAR -c
getopt1.c
gcc -DHAVE_CONFIG_H -I. -I.. -I./../h -g -Wc/WARN -Wc/UNSIGNED_CHAR -c
vfprintf.c
#endif /* !HAVE_VFPRINTF */
...........................^
%CC-W-EMPTYFILE, Source file does not contain any declarations.
at line number 31 in file USERS:[user4.bc-1^.06.lib]vfprintf.c;1
gcc -DHAVE_CONFIG_H -I. -I.. -I./../h -g -Wc/WARN -Wc/UNSIGNED_CHAR -c
number.c
rm -f libbc.a
ar cru libbc.a getopt.o getopt1.o vfprintf.o number.o
Warning: u unrecognized switch
%LIBRAR-W-COMCOD, compilation warnings in module VFPRINTF file
USERS:[user4.bc-1^.06.lib]vfprintf.o;1
: libbc.a
make[2]: Leaving directory `/USERS/user4/bc-1.06/lib'
Making all in bc
make[2]: Entering directory `/USERS/user4/bc-1.06/bc'
Makefile:169: warning: overriding commands for target `.s.o'
Makefile:166: warning: ignoring old commands for target `.s.o'
gcc -DHAVE_CONFIG_H -I. -I. -I.. -I. -I./../h -g -Wc/WARN -Wc/UNSIGNED_CHAR
-c main.c
gcc -DHAVE_CONFIG_H -I. -I. -I.. -I. -I./../h -g -Wc/WARN -Wc/UNSIGNED_CHAR
-c bc.c
gcc -DHAVE_CONFIG_H -I. -I. -I.. -I. -I./../h -g -Wc/WARN -Wc/UNSIGNED_CHAR
-c scan.c
for (look = yytext; *look != 0; look++)
...................^
%CC-W-PTRMISMATCH1, In this statement, the referenced type of the pointer value
"yytext" is "char", which is not compatible with "un
signed char" because they differ by signed/unsigned attribute.
at line number 319 in file USERS:[user4.bc-1^.06.bc]scan.l;1
src = yytext;
..............^
%CC-W-PTRMISMATCH1, In this statement, the referenced type of the pointer value
"yytext" is "char", which is not compatible with "un
signed char" because they differ by signed/unsigned attribute.
at line number 335 in file USERS:[user4.bc-1^.06.bc]scan.l;1
dst = yytext;
..............^
%CC-W-PTRMISMATCH1, In this statement, the referenced type of the pointer value
"yytext" is "char", which is not compatible with "un
signed char" because they differ by signed/unsigned attribute.
at line number 336 in file USERS:[user4.bc-1^.06.bc]scan.l;1
gcc -DHAVE_CONFIG_H -I. -I. -I.. -I. -I./../h -g -Wc/WARN -Wc/UNSIGNED_CHAR
-c execute.c
gcc -DHAVE_CONFIG_H -I. -I. -I.. -I. -I./../h -g -Wc/WARN -Wc/UNSIGNED_CHAR
-c load.c
gcc -DHAVE_CONFIG_H -I. -I. -I.. -I. -I./../h -g -Wc/WARN -Wc/UNSIGNED_CHAR
-c storage.c
gcc -DHAVE_CONFIG_H -I. -I. -I.. -I. -I./../h -g -Wc/WARN -Wc/UNSIGNED_CHAR
-c util.c
gcc -DHAVE_CONFIG_H -I. -I. -I.. -I. -I./../h -g -Wc/WARN -Wc/UNSIGNED_CHAR
-c global.c
gcc -g -Wc/WARN -Wc/UNSIGNED_CHAR -o bc main.o bc.o scan.o execute.o load.o
storage.o util.o global.o ../lib/libbc.a
%LINK-W-WRNERS, compilation warnings
in module SCAN file USERS:[user4.bc-1^.06.bc]scan.o;1
make[2]: Leaving directory `/USERS/user4/bc-1.06/bc'
Making all in dc
make[2]: Entering directory `/USERS/user4/bc-1.06/dc'
Makefile:153: warning: overriding commands for target `.s.o'
Makefile:150: warning: ignoring old commands for target `.s.o'
gcc -DHAVE_CONFIG_H -I. -I. -I.. -I./.. -I./../h -g -Wc/WARN
-Wc/UNSIGNED_CHAR -c dc.c
gcc -DHAVE_CONFIG_H -I. -I. -I.. -I./.. -I./../h -g -Wc/WARN
-Wc/UNSIGNED_CHAR -c misc.c
gcc -DHAVE_CONFIG_H -I. -I. -I.. -I./.. -I./../h -g -Wc/WARN
-Wc/UNSIGNED_CHAR -c eval.c
gcc -DHAVE_CONFIG_H -I. -I. -I.. -I./.. -I./../h -g -Wc/WARN
-Wc/UNSIGNED_CHAR -c stack.c
gcc -DHAVE_CONFIG_H -I. -I. -I.. -I./.. -I./../h -g -Wc/WARN
-Wc/UNSIGNED_CHAR -c array.c
gcc -DHAVE_CONFIG_H -I. -I. -I.. -I./.. -I./../h -g -Wc/WARN
-Wc/UNSIGNED_CHAR -c numeric.c
gcc -DHAVE_CONFIG_H -I. -I. -I.. -I./.. -I./../h -g -Wc/WARN
-Wc/UNSIGNED_CHAR -c string.c
gcc -g -Wc/WARN -Wc/UNSIGNED_CHAR -o dc dc.o misc.o eval.o stack.o array.o
numeric.o string.o ../lib/libbc.a
make[2]: Leaving directory `/USERS/user4/bc-1.06/dc'
Making all in doc
make[2]: Entering directory `/USERS/user4/bc-1.06/doc'
make[2]: Nothing to be done for `all'.
make[2]: Leaving directory `/USERS/user4/bc-1.06/doc'
make[2]: Entering directory `/USERS/user4/bc-1.06'
make[2]: Leaving directory `/USERS/user4/bc-1.06'
make[1]: Leaving directory `/USERS/user4/bc-1.06'
bash$
So, the build has completed. Let's test the results!
bash$ cd bc bash$ bc bc 1.06 Copyright 1991-1994, 1997, 1998, 2000 Free Software Foundation, Inc. This is free software with ABSOLUTELY NO WARRANTY. For details type `warranty'. 12*12 144 11^11 285311670611 11^2 121 121/11 11 Exit (pressed CTRL-Z) bash$ bash$ cd ../dc bash$ dc 1 2 + p 3 11 2 ^ p 121 121 v p 11 12345 9 ^ p 6659166111488656281486807152009765625 q bash$ bash$ exit pressed CTRL-DAs this account isn't privileged, we need another account to install the results in the /usr/local/bin directory. Manual pages are also installed, but as the current man executable can't process the default format yet, man pages aren't available...
$ tel 0
%TELNET-I-TRYING, Trying ... 127.0.0.1
%TELNET-I-SESSION, Session 01, host localhost, port 23
-TELNET-I-ESCAPE, Escape character is ^]
Welcome to OpenVMS (TM) Alpha Operating System, Version V7.3-2
Username: system
Password: password not echoed
Welcome to OpenVMS (TM) Alpha Operating System, Version V7.3-2
Last interactive login on Tuesday, 25-MAY-2004 19:16:39.71
Last non-interactive login on Friday, 28-MAY-2004 20:38:33.38
You have 56 new Mail messages.
$ set def users:[user4]
$ bash
bash$ cd bc-1.06
bash$ ls
AUTHORS Makefile aclocal.m4 configure missing
COPYING Makefile.am bc configure.in mkinstalldirs
COPYING.LIB Makefile.in config.cache dc stamp-h
ChangeLog NEWS config.h doc stamp-h.in
Examples README config.h.in h
FAQ Test config.log install-sh
INSTALL acconfig.h config.status lib
bash$ make install
Making install in lib
make[1]: Entering directory `/users/user4/bc-1.06/lib'
Makefile:132: warning: overriding commands for target `.s.o'
Makefile:129: warning: ignoring old commands for target `.s.o'
make[2]: Entering directory `/users/user4/bc-1.06/lib'
Makefile:132: warning: overriding commands for target `.s.o'
Makefile:129: warning: ignoring old commands for target `.s.o'
make[2]: Nothing to be done for `install-exec-am'.
make[2]: Nothing to be done for `install-data-am'.
make[2]: Leaving directory `/users/user4/bc-1.06/lib'
make[1]: Leaving directory `/users/user4/bc-1.06/lib'
Making install in bc
make[1]: Entering directory `/users/user4/bc-1.06/bc'
Makefile:169: warning: overriding commands for target `.s.o'
Makefile:166: warning: ignoring old commands for target `.s.o'
make[2]: Entering directory `/users/user4/bc-1.06/bc'
Makefile:169: warning: overriding commands for target `.s.o'
Makefile:166: warning: ignoring old commands for target `.s.o'
/bin/sh ../mkinstalldirs /usr/local/bin
/gnu/bin/install -c bc /usr/local/bin/bc
make[2]: Nothing to be done for `install-data-am'.
make[2]: Leaving directory `/users/user4/bc-1.06/bc'
make[1]: Leaving directory `/users/user4/bc-1.06/bc'
Making install in dc
make[1]: Entering directory `/users/user4/bc-1.06/dc'
Makefile:153: warning: overriding commands for target `.s.o'
Makefile:150: warning: ignoring old commands for target `.s.o'
make[2]: Entering directory `/users/user4/bc-1.06/dc'
Makefile:153: warning: overriding commands for target `.s.o'
Makefile:150: warning: ignoring old commands for target `.s.o'
/bin/sh ../mkinstalldirs /usr/local/bin
/gnu/bin/install -c dc /usr/local/bin/dc
make[2]: Nothing to be done for `install-data-am'.
make[2]: Leaving directory `/users/user4/bc-1.06/dc'
make[1]: Leaving directory `/users/user4/bc-1.06/dc'
Making install in doc
make[1]: Entering directory `/users/user4/bc-1.06/doc'
make[2]: Entering directory `/users/user4/bc-1.06/doc'
make[2]: Nothing to be done for `install-exec-am'.
/bin/sh ../mkinstalldirs /usr/local/info
/gnu/bin/install -c -m 644 ./bc.info /usr/local/info/bc.info
/gnu/bin/install -c -m 644 ./dc.info /usr/local/info/dc.info
make install-man1
make[3]: Entering directory `/users/user4/bc-1.06/doc'
/bin/sh ../mkinstalldirs /usr/local/man/man1
/gnu/bin/install -c -m 644 ./bc.1 /usr/local/man/man1/bc.1
/gnu/bin/install -c -m 644 ./dc.1 /usr/local/man/man1/dc.1
make[3]: Leaving directory `/users/user4/bc-1.06/doc'
make[2]: Leaving directory `/users/user4/bc-1.06/doc'
make[1]: Leaving directory `/users/user4/bc-1.06/doc'
make[1]: Entering directory `/users/user4/bc-1.06'
make[2]: Entering directory `/users/user4/bc-1.06'
make[2]: Nothing to be done for `install-exec-am'.
make[2]: Nothing to be done for `install-data-am'.
make[2]: Leaving directory `/users/user4/bc-1.06'
make[1]: Leaving directory `/users/user4/bc-1.06'
bash$
bash$ ls /usr/local/bin
autoconf autom4te autoscan bc dc flex++ patch perl.EXE
autoheader autoreconf autoupdate bison flex ifnames perl
bash$ ls
AUTHORS Makefile aclocal.m4 configure missing
COPYING Makefile.am bc configure.in mkinstalldirs
COPYING.LIB Makefile.in config.cache dc stamp-h
ChangeLog NEWS config.h doc stamp-h.in
Examples README config.h.in h
FAQ Test config.log install-sh
INSTALL acconfig.h config.status lib
bash$ bc
bc 1.06
Copyright 1991-1994, 1997, 1998, 2000 Free Software Foundation, Inc.
This is free software with ABSOLUTELY NO WARRANTY.
For details type `warranty'.
1+2
3
Exit pressed CTRL-Z
bash$
bash$ exit pressed CTRL-D
Now you have bc and dc available for everyone on your system!