- *) echo "Ok. Stopping Configure." >&4
- exit 1
- ;;
- esac
- ;;
-n) echo "OK, that should do.";;
-esac
-$rm -f try try.* core
-
-: define an is-a-typedef? function
-typedef='type=$1; var=$2; def=$3; shift; shift; shift; inclist=$@;
-case "$inclist" in
-"") inclist="sys/types.h";;
-esac;
-eval "varval=\$$var";
-case "$varval" in
-"")
- $rm -f temp.c;
- for inc in $inclist; do
- echo "#include <$inc>" >>temp.c;
- done;
- echo "#ifdef $type" >> temp.c;
- echo "printf(\"We have $type\");" >> temp.c;
- echo "#endif" >> temp.c;
- $cppstdin $cppflags $cppminus < temp.c >temp.E 2>/dev/null;
- if $contains $type temp.E >/dev/null 2>&1; then
- eval "$var=\$type";
- else
- eval "$var=\$def";
- fi;
- $rm -f temp.?;;
-*) eval "$var=\$varval";;
-esac'
-
-: define an is-a-typedef? function that prompts if the type is not available.
-typedef_ask='type=$1; var=$2; def=$3; shift; shift; shift; inclist=$@;
-case "$inclist" in
-"") inclist="sys/types.h";;
-esac;
-eval "varval=\$$var";
-case "$varval" in
-"")
- $rm -f temp.c;
- for inc in $inclist; do
- echo "#include <$inc>" >>temp.c;
- done;
- echo "#ifdef $type" >> temp.c;
- echo "printf(\"We have $type\");" >> temp.c;
- echo "#endif" >> temp.c;
- $cppstdin $cppflags $cppminus < temp.c >temp.E 2>/dev/null;
- echo " " ;
- echo "$rp" | $sed -e "s/What is/Looking for/" -e "s/?/./";
- if $contains $type temp.E >/dev/null 2>&1; then
- echo "$type found." >&4;
- eval "$var=\$type";
- else
- echo "$type NOT found." >&4;
- dflt="$def";
- . ./myread ;
- eval "$var=\$ans";
- fi;
- $rm -f temp.?;;
-*) eval "$var=\$varval";;
-esac'
-
-: define a shorthand compile call
-compile='
-mc_file=$1;
-shift;
-$cc -o ${mc_file} $optimize $ccflags $ldflags $* ${mc_file}.c $libs > /dev/null 2>&1;'
-: define a shorthand compile call for compilations that should be ok.
-compile_ok='
-mc_file=$1;
-shift;
-$cc -o ${mc_file} $optimize $ccflags $ldflags $* ${mc_file}.c $libs;'
-
-: check for lengths of integral types
-echo " "
-case "$intsize" in
-'')
- echo "Checking to see how big your integers are..." >&4
- $cat >intsize.c <<'EOCP'
-#include <stdio.h>
-int main()
-{
- printf("intsize=%d;\n", (int)sizeof(int));
- printf("longsize=%d;\n", (int)sizeof(long));
- printf("shortsize=%d;\n", (int)sizeof(short));
- exit(0);
-}
-EOCP
- set intsize
- if eval $compile_ok && ./intsize > /dev/null; then
- eval `./intsize`
- echo "Your integers are $intsize bytes long."
- echo "Your long integers are $longsize bytes long."
- echo "Your short integers are $shortsize bytes long."
- else
- $cat >&4 <<EOM
-!
-Help! I can't compile and run the intsize test program: please enlighten me!
-(This is probably a misconfiguration in your system or libraries, and
-you really ought to fix it. Still, I'll try anyway.)
-!
-EOM
- dflt=4
- rp="What is the size of an integer (in bytes)?"
- . ./myread
- intsize="$ans"
- dflt=$intsize
- rp="What is the size of a long integer (in bytes)?"
- . ./myread
- longsize="$ans"
- dflt=2
- rp="What is the size of a short integer (in bytes)?"
- . ./myread
- shortsize="$ans"
- fi
- ;;
-esac
-$rm -f intsize intsize.*
-
-: see what type lseek is declared as in the kernel
-rp="What is the type used for lseek's offset on this system?"
-set off_t lseektype long stdio.h sys/types.h
-eval $typedef_ask
-
-echo " "
-echo "Checking to see how big your file offsets are..." >&4
-$cat >try.c <<EOCP
-#include <sys/types.h>
-#include <stdio.h>
-int main()
-{
- printf("%d\n", (int)sizeof($lseektype));
- return(0);
-}
-EOCP
-set try
-if eval $compile_ok; then
- lseeksize=`./try`
- echo "Your file offsets are $lseeksize bytes long."
-else
- dflt=$longsize
- echo " "
- echo "(I can't seem to compile the test program. Guessing...)"
- rp="What is the size of your file offsets (in bytes)?"
- . ./myread
- lseeksize="$ans"
-fi
-$rm -f try.c try
-
-: see what type file positions are declared as in the library
-rp="What is the type for file position used by fsetpos()?"
-set fpos_t fpostype long stdio.h sys/types.h
-eval $typedef_ask
-
-echo " "
-case "$fpostype" in
-*_t) zzz="$fpostype" ;;
-*) zzz="fpos_t" ;;
-esac
-echo "Checking the size of $zzz..." >&4
-cat > try.c <<EOCP
-#include <sys/types.h>
-#include <stdio.h>
-int main() {
- printf("%d\n", (int)sizeof($fpostype));
- exit(0);
-}
-EOCP
-set try
-if eval $compile_ok; then
- yyy=`./try`
- case "$yyy" in
- '') fpossize=4
- echo "(I can't execute the test program--guessing $fpossize.)" >&4
- ;;
- *) fpossize=$yyy
- echo "Your $zzz is $fpossize bytes long."
- ;;
- esac
-else
- dflt="$longsize"
- echo " " >&4
- echo "(I can't compile the test program. Guessing...)" >&4
- rp="What is the size of your file positions (in bytes)?"
- . ./myread
- fpossize="$ans"
-fi
-
-
-
-# Backward compatibility (uselfs is deprecated).
-case "$uselfs" in
-"$define"|true|[yY]*)
- cat <<EOM >&4
-
-*** Configure -Duselfs is deprecated, using -Duselargefiles instead.
-EOM
- uselargefiles="$define"
- ;;
-esac
-
-case "$lseeksize:$fpossize" in
-8:8) cat <<EOM
-
-You can have files larger than 2 gigabytes.
-EOM
- val="$define" ;;
-*) case "$uselargefiles" in
- "$undef"|false|[nN]*) dflt='n' ;;
- *) dflt='y' ;;
- esac
- cat <<EOM
-
-Perl can be built to understand large files (files larger than 2 gigabytes)
-on some systems. To do so, Configure can be run with -Duselargefiles.
-
-If this doesn't make any sense to you, just accept the default '$dflt'.
-EOM
- rp='Try to understand large files, if available?'
- . ./myread
- case "$ans" in
- y|Y) val="$define" ;;
- *) val="$undef" ;;
- esac
- ;;
-esac
-set uselargefiles
-eval $setvar
-case "$uselargefiles" in
-"$define")
-: Look for a hint-file generated 'call-back-unit'. If the
-: user has specified that a large files perl is to be built,
-: we may need to set or change some other defaults.
- if $test -f uselargefiles.cbu; then
- echo "Your platform has some specific hints for large file builds, using them..."
- . ./uselargefiles.cbu
- echo " "
- echo "Rechecking to see how big your file offsets are..." >&4
- $cat >try.c <<EOCP
-#include <sys/types.h>
-#include <stdio.h>
-int main()
-{
- printf("%d\n", (int)sizeof($lseektype));
- return(0);
-}
-EOCP
- set try
- if eval $compile_ok; then
- lseeksize=`./try`
- $echo "Your file offsets are now $lseeksize bytes long."
- else
- dflt="$lseeksize"
- echo " "
- echo "(I can't seem to compile the test program. Guessing...)"
- rp="What is the size of your file offsets (in bytes)?"
- . ./myread
- lseeksize="$ans"
- fi
- case "$fpostype" in
- *_t) zzz="$fpostype" ;;
- *) zzz="fpos_t" ;;
- esac
- $echo $n "Rechecking the size of $zzz...$c" >&4
- $cat > try.c <<EOCP
-#include <sys/types.h>
-#include <stdio.h>
-int main() {
- printf("%d\n", (int)sizeof($fpostype));
- exit(0);
-}
-EOCP
- set try
- if eval $compile_ok; then
- yyy=`./try`
- dflt="$lseeksize"
- case "$yyy" in
- '') echo " "
- echo "(I can't execute the test program--guessing $fpossize.)" >&4
- ;;
- *) fpossize=$yyy
- echo " $fpossize bytes." >&4
- ;;
- esac
- else
- dflt="$fpossize"
- echo " "
- echo "(I can't compile the test program. Guessing...)" >&4
- rp="What is the size of your file positions (in bytes)?"
- . ./myread
- fpossize="$ans"
- fi
- $rm -f try.c try
- fi