pkg/49638: devel/re2c fails to build on an Ultra-2 running Solaris 10u7 w/ Studio Pro 12u1

[mdehling%gmail.com@localhost]

>Number:         49638
>Category:       pkg
>Synopsis:       devel/re2c fails to build on an Ultra-2 running Solaris 10u7 w/ Studio Pro 12u1
>Confidential:   no
>Severity:       serious
>Priority:       low
>Responsible:    pkg-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Feb 03 22:50:00 +0000 2015
>Originator:     Malte Dehling
>Release:        pkgsrc-2014Q4
>Organization:
>Environment:
SunOS U2 5.10 Generic_139555-08 sun4u sparc sun4u
cc: Sun C 5.10 SunOS_sparc 2009/06/03

>Description:
Build fails with

[...]
statement.source='translate.cc' object='translate.o' libtool=no \
DEPDIR=.deps depmode=none /pkg/bin/pdksh ./depcomp \
CC -DHAVE_CONFIG_H -I.     -fast -W -Wall -Wextra -pedantic -Wredundant-decls -DPEDANTIC -c -o translate.o translate.cc
"range.cc", line 99: Warning: statement is unreachable.
1 Warning(s) detected.
"parser.cc", line 173: Warning: "std::map<std::string,std::pair<int, re2c::RegExp*> >::operator[](const std::string &)" is too large and will not be expanded inline.
"parser.cc", line 173:     Where: While instantiating "std::map<std::string,std::pair<int, re2c::RegExp*> >::operator[](const std::string &)".
"parser.cc", line 173:     Where: Instantiated from non-template code.
"parser.cc", line 173: Warning (Anachronism): Assigning std::pair<int, re2c::RuleOp*> to std::pair<int, re2c::RegExp*>.
"parser.cc", line 173: Error: Cannot cast from std::pair<int, re2c::RuleOp*> to std::pair<int, re2c::RegExp*>.
1 Error(s) and 2 Warning(s) detected.
Makefile:672: recipe for target 'parser.o' failed
gmake[1]: *** [parser.o] Error 1

>How-To-Repeat:

>Fix:
Don't know.