-usevfork=false
-d_suidsafe=define
-set `echo $glibpth | sed -e 's@/usr/ucblib@@'`
+# hints/solaris_2.sh
+# Contributions by (in alphabetical order) Alan Burlison, Andy Dougherty,
+# Dean Roehrich, Jarkko Hietaniemi, Lupe Christoph, Richard Soderberg and
+# many others.
+#
+# See README.solaris for additional information.
+#
+# For consistency with gcc, we do not adopt Sun Marketing's
+# removal of the '2.' prefix from the Solaris version number.
+# (Configure tries to detect an old fixincludes and needs
+# this information.)
+
+# If perl fails tests that involve dynamic loading of extensions, and
+# you are using gcc, be sure that you are NOT using GNU as and ld. One
+# way to do that is to invoke Configure with
+#
+# sh Configure -Dcc='gcc -B/usr/ccs/bin/'
+#
+# (Note that the trailing slash is *required*.)
+# gcc will occasionally emit warnings about "unused prefix", but
+# these ought to be harmless. See below for more details.
+
+# Solaris has secure SUID scripts
+d_suidsafe=${d_suidsafe:-define}
+
+# Be paranoid about nm failing to find symbols
+mistrustnm=${mistrustnm:-run}
+
+# Several people reported problems with perl's malloc, especially
+# when use64bitall is defined or when using gcc.
+# http://www.xray.mpe.mpg.de/mailing-lists/perl5-porters/2001-01/msg01318.html
+# http://www.xray.mpe.mpg.de/mailing-lists/perl5-porters/2001-01/msg00465.html
+usemymalloc=${usemymalloc:-false}
+
+# malloc wrap works
+case "$usemallocwrap" in
+'') usemallocwrap='define' ;;
+esac
+
+# Avoid all libraries in /usr/ucblib.
+# /lib is just a symlink to /usr/lib
+set `echo $glibpth | sed -e 's@/usr/ucblib@@' -e 's@ /lib @ @'`
glibpth="$*"
-set `echo " $libswanted " | sed -e 's@ ld @ @' -e 's@ ucb @ @'`
+
+# Remove unwanted libraries. -lucb contains incompatible routines.
+# -lld and -lsec don't do anything useful. -lcrypt does not
+# really provide anything we need over -lc, so we drop it, too.
+# -lmalloc can cause a problem with GNU CC & Solaris. Specifically,
+# libmalloc.a may allocate memory that is only 4 byte aligned, but
+# GNU CC on the Sparc assumes that doubles are 8 byte aligned.
+# Thanks to Hallvard B. Furuseth <h.b.furuseth@usit.uio.no>
+set `echo " $libswanted " | sed -e 's@ ld @ @' -e 's@ malloc @ @' -e 's@ ucb @ @' -e 's@ sec @ @' -e 's@ crypt @ @'`
libswanted="$*"
-# Look for architecture name. We want to suggest a useful default
-# for archlib and also warn about possible -x486 flags needed.
+# Look for architecture name. We want to suggest a useful default.
case "$archname" in
'')
if test -f /usr/bin/arch; then
- archname=`/usr/bin/arch`
- archname="${archname}-${osname}"
+ archname=`/usr/bin/arch`
+ archname="${archname}-${osname}"
elif test -f /usr/ucb/arch; then
- archname=`/usr/ucb/arch`
- archname="${archname}-${osname}"
+ archname=`/usr/ucb/arch`
+ archname="${archname}-${osname}"
fi
;;
esac
-case "$archname" in
-*86*) echo "For an Intel platform you might need to add -x486 to ccflags" >&4;;
-*) ;;
+
+#
+# This extracts the library directories that will be searched by the Sun
+# Workshop compiler, given the command-line supplied in $tryworkshopcc.
+# Use thusly: loclibpth="`$getworkshoplibs` $loclibpth"
+#
+ getworkshoplibs=`cat <<'END'
+eval $tryworkshopcc -### 2>&1 | \
+sed -n '/ -Y /s!.* -Y "P,\([^"]*\)".*!\1!p' | tr ':' ' ' | \
+sed -e 's!/usr/lib/sparcv9!!' -e 's!/usr/ccs/lib/sparcv9!!' \
+ -e 's!/usr/lib!!g' -e 's!/usr/ccs/lib!!g'
+END
+`
+
+case "$cc" in
+'') if test -f /opt/SUNWspro/bin/cc; then
+ cc=/opt/SUNWspro/bin/cc
+ cat <<EOF >&4
+
+You specified no cc but you seem to have the Workshop compiler
+($cc) installed, using that.
+If you want something else, specify that in the command line,
+e.g. Configure -Dcc=gcc
+
+EOF
+ fi
+ ;;
+esac
+
+######################################################
+# General sanity testing. See below for excerpts from the Solaris FAQ.
+#
+# From roehrich@ironwood-fddi.cray.com Wed Sep 27 12:51:46 1995
+# Date: Thu, 7 Sep 1995 16:31:40 -0500
+# From: Dean Roehrich <roehrich@ironwood-fddi.cray.com>
+# To: perl5-porters@africa.nicoh.com
+# Subject: Re: On perl5/solaris/gcc
+#
+# Here's another draft of the perl5/solaris/gcc sanity-checker.
+
+case `type ${cc:-cc}` in
+*/usr/ucb/cc*) cat <<END >&4
+
+NOTE: Some people have reported problems with /usr/ucb/cc.
+If you have difficulties, please make sure the directory
+containing your C compiler is before /usr/ucb in your PATH.
+
+END
+;;
+esac
+
+
+# Check that /dev/fd is mounted. If it is not mounted, let the
+# user know that suid scripts may not work.
+mount | grep '^/dev/fd ' 2>&1 > /dev/null
+case $? in
+0) ;;
+*)
+ cat <<END >&4
+
+NOTE: Your system does not have /dev/fd mounted. If you want to
+be able to use set-uid scripts you must ask your system administrator
+to mount /dev/fd.
+
+END
+ ;;
esac
-case $PATH in
-*/usr/ucb*:/usr/bin:*) cat <<END
-NOTE: Some people have reported problems with /usr/ucb/cc.
-Remove /usr/ucb from your PATH if you have difficulties.
+
+# See if libucb can be found in /usr/lib. If it is, warn the user
+# that this may cause problems while building Perl extensions.
+/usr/bin/ls /usr/lib/libucb* >/dev/null 2>&1
+case $? in
+0)
+ cat <<END >&4
+
+NOTE: libucb has been found in /usr/lib. libucb should reside in
+/usr/ucblib. You may have trouble while building Perl extensions.
+
END
;;
esac
+
+# Use shell built-in 'type' command instead of /usr/bin/which to
+# avoid possible csh start-up problems and also to use the same shell
+# we'll be using to Configure and make perl.
+# The path name is the last field in the output, but the type command
+# has an annoying array of possible outputs, e.g.:
+# make is hashed (/opt/gnu/bin/make)
+# cc is /usr/ucb/cc
+# foo not found
+# use a command like type make | awk '{print $NF}' | sed 's/[()]//g'
+
+# See if make(1) is GNU make(1).
+# If it is, make sure the setgid bit is not set.
+make -v > make.vers 2>&1
+if grep GNU make.vers > /dev/null 2>&1; then
+ tmp=`type make | awk '{print $NF}' | sed 's/[()]//g'`
+ case "`/usr/bin/ls -lL $tmp`" in
+ ??????s*)
+ cat <<END >&2
+
+NOTE: Your PATH points to GNU make, and your GNU make has the set-group-id
+bit set. You must either rearrange your PATH to put /usr/ccs/bin before the
+GNU utilities or you must ask your system administrator to disable the
+set-group-id bit on GNU make.
+
+END
+ ;;
+ esac
+fi
+rm -f make.vers
+
+cat > UU/cc.cbu <<'EOCBU'
+# This script UU/cc.cbu will get 'called-back' by Configure after it
+# has prompted the user for the C compiler to use.
+
+# If the C compiler is gcc:
+# - check the fixed-includes
+# - check as(1) and ld(1), they should not be GNU
+# (GNU as and ld 2.8.1 and later are reportedly ok, however.)
+# If the C compiler is not gcc:
+# - Check if it is the Workshop/Forte compiler.
+# If it is, prepare for 64 bit and long doubles.
+# - check as(1) and ld(1), they should not be GNU
+# (GNU as and ld 2.8.1 and later are reportedly ok, however.)
+#
+# Watch out in case they have not set $cc.
+
+# Perl compiled with some combinations of GNU as and ld may not
+# be able to perform dynamic loading of extensions. If you have a
+# problem with dynamic loading, be sure that you are using the Solaris
+# /usr/ccs/bin/as and /usr/ccs/bin/ld. You can do that with
+# sh Configure -Dcc='gcc -B/usr/ccs/bin/'
+# (note the trailing slash is required).
+# Combinations that are known to work with the following hints:
+#
+# gcc-2.7.2, GNU as 2.7, GNU ld 2.7
+# egcs-1.0.3, GNU as 2.9.1 and GNU ld 2.9.1
+# --Andy Dougherty <doughera@lafayette.edu>
+# Tue Apr 13 17:19:43 EDT 1999
+
+# Get gcc to share its secrets.
+echo 'int main() { return 0; }' > try.c
+ # Indent to avoid propagation to config.sh
+ verbose=`${cc:-cc} -v -o try try.c 2>&1`
+
+# XXX TODO: 'specs' output changed from 'Reading specs from' in gcc-[23] to 'Using
+# built-in specs' in gcc-4. Perhaps we should just use the same gcc test as
+# in Configure to see if we're using gcc.
+if echo "$verbose" | egrep '(Reading specs from)|(Using built-in specs)' >/dev/null 2>&1; then
+ #
+ # Using gcc.
+ #
+ cc_name='gcc'
+
+ # See if as(1) is GNU as(1). GNU as(1) might not work for this job.
+ if echo "$verbose" | grep ' /usr/ccs/bin/as ' >/dev/null 2>&1; then
+ :
+ else
+ cat <<END >&2
+
+NOTE: You are using GNU as(1). GNU as(1) might not build Perl. If you
+have trouble, you can use /usr/ccs/bin/as by including -B/usr/ccs/bin/
+in your ${cc:-cc} command. (Note that the trailing "/" is required.)
+
+END
+ # Apparently not needed, at least for as 2.7 and later.
+ # cc="${cc:-cc} -B/usr/ccs/bin/"
+ fi
+
+ # See if ld(1) is GNU ld(1). GNU ld(1) might not work for this job.
+ # Recompute $verbose since we may have just changed $cc.
+ verbose=`${cc:-cc} -v -o try try.c 2>&1 | grep ld 2>&1`
+
+ if echo "$verbose" | grep ' /usr/ccs/bin/ld ' >/dev/null 2>&1; then
+ # Ok, gcc directly calls the Solaris /usr/ccs/bin/ld.
+ :
+ elif echo "$verbose" | grep "ld: Software Generation Utilities" >/dev/null 2>&1; then
+ # Hmm. gcc doesn't call /usr/ccs/bin/ld directly, but it
+ # does appear to be using it eventually. egcs-1.0.3's ld
+ # wrapper does this.
+ # Most Solaris versions of ld I've seen contain the magic
+ # string used in the grep.
+ :
+ elif echo "$verbose" | grep "Solaris Link Editors" >/dev/null 2>&1; then
+ # However some Solaris 8 versions prior to ld 5.8-1.286 contain
+ # this string instead.
+ :
+ else
+ # No evidence yet of /usr/ccs/bin/ld. Some versions
+ # of egcs's ld wrapper call /usr/ccs/bin/ld in turn but
+ # apparently don't reveal that unless you pass in -V.
+ # (This may all depend on local configurations too.)
+
+ # Recompute verbose with -Wl,-v to find GNU ld if present
+ verbose=`${cc:-cc} -Wl,-v -o try try.c 2>&1 | grep /ld 2>&1`
+
+ myld=`echo $verbose | awk '/\/ld/ {print $1}'`
+ # This assumes that gcc's output will not change, and that
+ # /full/path/to/ld will be the first word of the output.
+ # Thus myld is something like /opt/gnu/sparc-sun-solaris2.5/bin/ld
+
+ # Allow that $myld may be '', due to changes in gcc's output
+ if ${myld:-ld} -V 2>&1 |
+ grep "ld: Software Generation Utilities" >/dev/null 2>&1; then
+ # Ok, /usr/ccs/bin/ld eventually does get called.
+ :
+ elif ${myld:-ld} -V 2>&1 |
+ grep "Solaris Link Editors" >/dev/null 2>&1; then
+ # Ok, /usr/ccs/bin/ld eventually does get called.
+ :
+ else
+ echo "Found GNU ld='$myld'" >&4
+ cat <<END >&2
+
+NOTE: You are using GNU ld(1). GNU ld(1) might not build Perl. If you
+have trouble, you can use /usr/ccs/bin/ld by including -B/usr/ccs/bin/
+in your ${cc:-cc} command. (Note that the trailing "/" is required.)
+
+I will try to use GNU ld by passing in the -Wl,-E flag, but if that
+doesn't work, you should use -B/usr/ccs/bin/ instead.
+
+END
+ ccdlflags="$ccdlflags -Wl,-E"
+ lddlflags="$lddlflags -Wl,-E -G"
+ fi
+ fi
+
+else
+ #
+ # Not using gcc.
+ #
+ cat > try.c << 'EOM'
+#include <stdio.h>
+int main() {
+#ifdef __SUNPRO_C
+ printf("workshop\n");
+#else
+ printf("\n");
+#endif
+return(0);
+}
+EOM
+ tryworkshopcc="${cc:-cc} try.c -o try"
+ if $tryworkshopcc >/dev/null 2>&1; then
+ cc_name=`./try`
+ if test "$cc_name" = "workshop"; then
+ ccversion="`${cc:-cc} -V 2>&1|sed -n -e '1s/^cc: //p'`"
+ if test ! "$use64bitall_done"; then
+ loclibpth="/usr/lib /usr/ccs/lib `$getworkshoplibs` $loclibpth"
+ fi
+ fi
+ fi
+
+ # See if as(1) is GNU as(1). GNU might not work for this job.
+ case `as --version < /dev/null 2>&1` in
+ *GNU*)
+ cat <<END >&2
+
+NOTE: You are using GNU as(1). GNU as(1) might not build Perl.
+You must arrange to use /usr/ccs/bin/as, perhaps by adding /usr/ccs/bin
+to the beginning of your PATH.
+
+END
+ ;;
+ esac
+
+ # See if ld(1) is GNU ld(1). GNU ld(1) might not work for this job.
+ # ld --version doesn't properly report itself as a GNU tool,
+ # as of ld version 2.6, so we need to be more strict. TWP 9/5/96
+ # Sun's ld always emits the "Software Generation Utilities" string.
+ if ld -V 2>&1 | grep "ld: Software Generation Utilities" >/dev/null 2>&1; then
+ # Ok, ld is /usr/ccs/bin/ld.
+ :
+ else
+ cat <<END >&2
+
+NOTE: You are apparently using GNU ld(1). GNU ld(1) might not build Perl.
+You should arrange to use /usr/ccs/bin/ld, perhaps by adding /usr/ccs/bin
+to the beginning of your PATH.
+
+END
+ fi
+fi
+
+# as --version or ld --version might dump core.
+rm -f try try.c core
+EOCBU
+
+cat > UU/usethreads.cbu <<'EOCBU'
+# This script UU/usethreads.cbu will get 'called-back' by Configure
+# after it has prompted the user for whether to use threads.
+case "$usethreads" in
+$define|true|[yY]*)
+ ccflags="-D_REENTRANT $ccflags"
+
+ # -lpthread overrides some lib C functions, so put it before c.
+ set `echo X "$libswanted "| sed -e "s/ c / pthread c /"`
+ shift
+ libswanted="$*"
+
+ # sched_yield is available in the -lrt library. However,
+ # we can also pick up the equivalent yield() function in the
+ # normal C library. To avoid pulling in unnecessary
+ # libraries, we'll normally avoid sched_yield()/-lrt and
+ # just use yield(). However, we'll honor a command-line
+ # override : "-Dsched_yield=sched_yield".
+ # If we end up using sched_yield, we're going to need -lrt.
+ sched_yield=${sched_yield:-yield}
+ if test "$sched_yield" = "sched_yield"; then
+ set `echo X "$libswanted "| sed -e "s/ pthread / rt pthread /"`
+ shift
+ libswanted="$*"
+ fi
+
+ # On Solaris 2.6 x86 there is a bug with sigsetjmp() and siglongjmp()
+ # when linked with the threads library, such that whatever positive
+ # value you pass to siglongjmp(), sigsetjmp() returns 1.
+ # Thanks to Simon Parsons <S.Parsons@ftel.co.uk> for this report.
+ # Sun BugID is 4117946, "sigsetjmp always returns 1 when called by
+ # siglongjmp in a MT program". As of 19980622, there is no patch
+ # available.
+ cat >try.c <<'EOM'
+ /* Test for sig(set|long)jmp bug. */
+ #include <setjmp.h>
+
+ int main()
+ {
+ sigjmp_buf env;
+ int ret;
+
+ ret = sigsetjmp(env, 1);
+ if (ret) { return ret == 2; }
+ siglongjmp(env, 2);
+ }
+EOM
+ if test "`arch`" = i86pc -a `uname -r` = 5.6 && \
+ ${cc:-cc} try.c -lpthread >/dev/null 2>&1 && ./a.out; then
+ d_sigsetjmp=$undef
+ fi
+
+ # These prototypes should be visible since we using
+ # -D_REENTRANT, but that does not seem to work.
+ # It does seem to work for getnetbyaddr_r, weirdly enough,
+ # and other _r functions. (Solaris 8)
+
+ d_ctermid_r_proto="$define"
+ d_gethostbyaddr_r_proto="$define"
+ d_gethostbyname_r_proto="$define"
+ d_getnetbyname_r_proto="$define"
+ d_getprotobyname_r_proto="$define"
+ d_getprotobynumber_r_proto="$define"
+ d_getservbyname_r_proto="$define"
+ d_getservbyport_r_proto="$define"
+
+ # Ditto. (Solaris 7)
+ d_readdir_r_proto="$define"
+ d_readdir64_r_proto="$define"
+ d_tmpnam_r_proto="$define"
+ d_ttyname_r_proto="$define"
+
+ ;;
+esac
+EOCBU
+
+cat > UU/uselargefiles.cbu <<'EOCBU'
+# This script UU/uselargefiles.cbu will get 'called-back' by Configure
+# after it has prompted the user for whether to use large files.
+case "$uselargefiles" in
+''|$define|true|[yY]*)
+
+# Keep these in the left margin.
+ccflags_uselargefiles="`getconf LFS_CFLAGS 2>/dev/null`"
+ldflags_uselargefiles="`getconf LFS_LDFLAGS 2>/dev/null`"
+libswanted_uselargefiles="`getconf LFS_LIBS 2>/dev/null|sed -e 's@^-l@@' -e 's@ -l@ @g`"
+
+ ccflags="$ccflags $ccflags_uselargefiles"
+ ldflags="$ldflags $ldflags_uselargefiles"
+ libswanted="$libswanted $libswanted_uselargefiles"
+ ;;
+esac
+EOCBU
+
+# This is truly a mess.
+case "$usemorebits" in
+"$define"|true|[yY]*)
+ use64bitint="$define"
+ uselongdouble="$define"
+ ;;
+esac
+
+if test `uname -p` = i386; then
+ case "$use64bitint" in
+ "$define"|true|[yY]*)
+ ccflags="$ccflags -DPTR_IS_LONG"
+ ;;
+ esac
+fi
+
+if test `uname -p` = sparc -o `uname -p` = i386; then
+ cat > UU/use64bitint.cbu <<'EOCBU'
+# This script UU/use64bitint.cbu will get 'called-back' by Configure
+# after it has prompted the user for whether to use 64 bit integers.
+case "$use64bitint" in
+"$define"|true|[yY]*)
+ case "`uname -r`" in
+ 5.[0-4])
+ cat >&4 <<EOM
+Solaris `uname -r|sed -e 's/^5\./2./'` does not support 64-bit integers.
+You should upgrade to at least Solaris 2.5.
+EOM
+ exit 1
+ ;;
+ esac
+
+# gcc-2.8.1 on Solaris 8 with -Duse64bitint fails op/pat.t test 822
+# if we compile regexec.c with -O. Turn off optimization for that one
+# file. See hints/README.hints , especially
+# =head2 Propagating variables to config.sh, method 3.
+# A. Dougherty May 24, 2002
+ case "${gccversion}-${optimize}" in
+ 2.8*-O*)
+ # Honor a command-line override (rather unlikely)
+ case "$regexec_cflags" in
+ '') echo "Disabling optimization on regexec.c for gcc $gccversion" >&4
+ regexec_cflags='optimize='
+ echo "regexec_cflags='optimize=\"\"'" >> config.sh
+ ;;
+ esac
+ ;;
+ esac
+ ;;
+esac
+EOCBU
+
+ cat > UU/use64bitall.cbu <<'EOCBU'
+# This script UU/use64bitall.cbu will get 'called-back' by Configure
+# after it has prompted the user for whether to be maximally 64 bitty.
+case "$use64bitall-$use64bitall_done" in
+"$define-"|true-|[yY]*-)
+ case "`uname -r`" in
+ 5.[0-6])
+ cat >&4 <<EOM
+Solaris `uname -r|sed -e 's/^5\./2./'` does not support 64-bit pointers.
+You should upgrade to at least Solaris 2.7.
+EOM
+ exit 1
+ ;;
+ esac
+ processor=`uname -p`;
+ if test "$processor" = sparc; then
+ libc='/usr/lib/sparcv9/libc.so'
+ if test ! -f $libc; then
+ cat >&4 <<EOM
+
+I do not see the 64-bit libc, $libc.
+Cannot continue, aborting.
+
+EOM
+ exit 1
+ fi
+ fi
+ case "${cc:-cc} -v 2>/dev/null" in
+ *gcc*)
+ echo 'int main() { return 0; }' > try.c
+ case "`${cc:-cc} -mcpu=v9 -m64 -S try.c 2>&1 | grep 'm64 is not supported by this configuration'`" in
+ *"m64 is not supported"*)
+ cat >&4 <<EOM
+
+Full 64-bit build is not supported by this gcc configuration.
+Check http://gcc.gnu.org/ for the latest news of availability
+of gcc for 64-bit Sparc.
+
+Cannot continue, aborting.
+
+EOM
+ exit 1
+ ;;
+ esac
+ if test "$processor" = sparc; then
+ loclibpth="/usr/lib/sparcv9 $loclibpth"
+ ccflags="$ccflags -mcpu=v9"
+ fi
+ ccflags="$ccflags -m64"
+
+ # This adds in -Wa,-xarch=v9. I suspect that's superfluous,
+ # since the -m64 above should do that already. Someone
+ # with gcc-3.x.x, please test with gcc -v. A.D. 20-Nov-2003
+# if test $processor = sparc -a X`getconf XBS5_LP64_OFF64_CFLAGS 2>/dev/null` != X; then
+# ccflags="$ccflags -Wa,`getconf XBS5_LP64_OFF64_CFLAGS 2>/dev/null`"
+# fi
+ ldflags="$ldflags -m64"
+ lddlflags="$lddlflags -G -m64"
+ ;;
+ *)
+ ccflags="$ccflags `getconf XBS5_LP64_OFF64_CFLAGS 2>/dev/null`"
+ ldflags="$ldflags `getconf XBS5_LP64_OFF64_LDFLAGS 2>/dev/null`"
+ lddlflags="$lddlflags -G `getconf XBS5_LP64_OFF64_LDFLAGS 2>/dev/null`"
+ echo "int main() { return(0); } " > try.c
+ tryworkshopcc="${cc:-cc} try.c -o try $ccflags"
+ if test "$processor" = sparc; then
+ loclibpth="/usr/lib/sparcv9 /usr/ccs/lib/sparcv9 $loclibpth"
+ fi
+ loclibpth="`$getworkshoplibs` $loclibpth"
+ ;;
+ esac
+ unset processor
+ use64bitall_done=yes
+ archname64=64
+ ;;
+esac
+EOCBU
+
+ # Actually, we want to run this already now, if so requested,
+ # because we need to fix up things right now.
+ case "$use64bitall" in
+ "$define"|true|[yY]*)
+ # CBUs expect to be run in UU
+ cd UU; . ./use64bitall.cbu; cd ..
+ ;;
+ esac
+fi
+
+cat > UU/uselongdouble.cbu <<'EOCBU'
+# This script UU/uselongdouble.cbu will get 'called-back' by Configure
+# after it has prompted the user for whether to use long doubles.
+case "$uselongdouble" in
+"$define"|true|[yY]*)
+ if test "$cc_name" = "workshop"; then
+ cat > try.c << 'EOM'
+#include <sunmath.h>
+int main() { (void) powl(2, 256); return(0); }
+EOM
+ if ${cc:-cc} try.c -lsunmath -o try > /dev/null 2>&1 && ./try; then
+ libswanted="$libswanted sunmath"
+ fi
+ else
+ cat >&4 <<EOM
+
+The Sun Workshop math library is either not available or not working,
+so I do not know how to do long doubles, sorry.
+I'm therefore disabling the use of long doubles.
+EOM
+ uselongdouble="$undef"
+ fi
+ ;;
+esac
+EOCBU
+
+#
+# If unsetenv is available, use it in conjunction with PERL_USE_SAFE_PUTENV to
+# work around Sun bugid 6333830. Both unsetenv and 6333830 only appear in
+# Solaris 10, so we don't need to probe explicitly for an OS version. We have
+# to append this test to the end of config.over as it needs to run after
+# Configure has probed for unsetenv, and this hints file is processed before
+# that has happened.
+#
+cat >> config.over <<'EOOVER'
+if test "$d_unsetenv" = "$define" -a \
+ `expr "$ccflags" : '.*-D_PERL_USE_SAFE_PUTENV'` -eq 0; then
+ ccflags="$ccflags -DPERL_USE_SAFE_PUTENV"
+fi
+EOOVER
+
+rm -f try.c try.o try a.out
+
+# If using C++, the Configure scan for dlopen() will fail in Solaris
+# because one of the two (1) an extern "C" linkage definition is needed
+# (2) #include <dlfcn.h> is needed, *and* a cast to (void*(*)())
+# is needed for the &dlopen. Adding any of these would require changing
+# a delicate spot in Configure, so easier just to force our guess here
+# for Solaris. Much the same goes for dlerror().
+case "$cc" in
+*g++*|*CC*)
+ d_dlopen='define'
+ d_dlerror='define'
+ ;;
+esac
+