--- /dev/null
+--- a/make/vroot/lock.cc 2007/01/18 15:06:32 1.1
++++ b/make/vroot/lock.cc 2007/10/01 11:44:26 1.2
+@@ -31,7 +31,7 @@
+ /*
+ * Portions Copyright (c) 2007 Gunnar Ritter, Freiburg i. Br., Germany
+ *
+- * Sccsid @(#)lock.cc 1.4 (gritter) 01/13/07
++ * Sccsid @(#)lock.cc 1.5 (gritter) 10/1/07
+ */
+
+ #include <avo/intl.h> /* for NOCATGETS */
+@@ -53,7 +53,7 @@
+ extern int sys_nerr;
+ #endif
+
+-static void file_lock_error(char *msg, char *file, char *str, int arg1, int arg2);
++static void file_lock_error(char *msg, char *file, char *str, const char *arg1, const char *arg2);
+
+ #define BLOCK_INTERUPTS sigfillset(&newset) ; \
+ sigprocmask(SIG_SETMASK, &newset, &oldset)
+@@ -123,7 +123,7 @@
+
+ if (errno != EEXIST) {
+ file_lock_error(msg, name, NOCATGETS("symlink(%s, %s)"),
+- (int) name, (int) lockname);
++ name, lockname);
+ fprintf(stderr, "%s", msg);
+ return errno;
+ }
+@@ -171,7 +171,8 @@
+ * Format a message telling why the lock could not be created.
+ */
+ static void
+-file_lock_error(char *msg, char *file, char *str, int arg1, int arg2)
++file_lock_error(char *msg, char *file, char *str,
++ const char *arg1, const char *arg2)
+ {
+ int len;
+
--- /dev/null
+diff --git a/make/include/mksh/defs.h b/make/include/mksh/defs.h
+index 1992205..8065a77 100644
+--- a/make/include/mksh/defs.h
++++ b/make/include/mksh/defs.h
+@@ -63,7 +63,6 @@
+ #include <widec.h>
+ #endif
+
+-#ifndef __sun
+ /*
+ * Definition of wchar functions.
+ */
+@@ -90,7 +89,6 @@
+ # define wscmp(x,y) wcscmp(x,y)
+ # undef wsncmp
+ # define wsncmp(x,y,z) wcsncmp(x,y,z)
+-#endif
+
+ #if defined (__FreeBSD__) || defined (__APPLE__) || defined (__hpux)
+ extern "C" { wchar_t *wcsdup(const wchar_t *s); }
+diff --git a/make/makestate/lock.c b/make/makestate/lock.c
+index cdf7562..aa6083e 100644
+--- a/make/makestate/lock.c
++++ b/make/makestate/lock.c
+@@ -42,18 +42,6 @@
+ #include <sys/errno.h>
+ #include <errno.h> /* errno */
+
+-#if defined(_LP64)
+-/*
+- * The symbols _sys_errlist and _sys_nerr are not visible in the
+- * LP64 libc. Use strerror(3C) instead.
+- */
+-#else /* #_LP64 */
+-#if defined (__sun) || defined (__hpux)
+-extern char * sys_errlist[];
+-extern int sys_nerr;
+-#endif
+-#endif /* #_LP64 */
+-
+ static void file_lock_error(char *, char *, const char *, char *, char *);
+
+ /*
+@@ -167,16 +155,7 @@ file_lock_error(char * msg, char * file, const char * str, char * arg1,
+ len = strlen(msg);
+ sprintf(&msg[len], str, arg1, arg2);
+ strcat(msg, " failed - ");
+-#if defined(_LP64)
+ /* Needs to be changed to use strerror(3C) instead. */
+ len = strlen(msg);
+ sprintf(&msg[len], "errno %d", errno);
+-#else /* #_LP64 */
+- if (errno < sys_nerr) {
+- strcat(msg, sys_errlist[errno]);
+- } else {
+- len = strlen(msg);
+- sprintf(&msg[len], "errno %d", errno);
+- }
+-#endif /* #_LP64 */
+ }
+diff --git a/make/mksh/macro.cc b/make/mksh/macro.cc
+index 6ddb624..23b0315 100644
+--- a/make/mksh/macro.cc
++++ b/make/mksh/macro.cc
+@@ -43,6 +43,7 @@
+ /*
+ * Included files
+ */
++#include <alloca.h>
+ #include <wordexp.h>
+ #include <mksh/dosys.h> /* sh_command2string() */
+ #include <mksh/i18n.h> /* get_char_semantics_value() */
+@@ -1403,13 +1404,6 @@ found_it:;
+ new_value = ALLOC_WC(length);
+ new_value_allocated = true;
+ WCSTOMBS(mbs_buffer, old_vr);
+-#ifdef __sun
+- wsprintf(new_value,
+- NOCATGETS("/usr/arch/%s/%s:%s"),
+- ha->string_mb + 1,
+- ta->string_mb + 1,
+- mbs_buffer);
+-#else
+ char * mbs_new_value = (char *)getmem(length);
+ sprintf(mbs_new_value,
+ NOCATGETS("/usr/arch/%s/%s:%s"),
+@@ -1418,7 +1412,6 @@ found_it:;
+ mbs_buffer);
+ MBSTOWCS(new_value, mbs_new_value);
+ retmem_mb(mbs_new_value);
+-#endif
+ }
+ if (new_value[0] != 0) {
+ setvar_daemon(virtual_root,
+diff --git a/make/mksh/misc.cc b/make/mksh/misc.cc
+index 11122cf..d617591 100644
+--- a/make/mksh/misc.cc
++++ b/make/mksh/misc.cc
+@@ -382,30 +382,7 @@ setup_char_semantics(void)
+ char *
+ errmsg(int errnum)
+ {
+-#ifndef __sun
+ return strerror(errnum);
+-#else // __sun
+-
+- extern int sys_nerr;
+-#ifdef SUN4_x
+- extern char *sys_errlist[];
+-#endif
+- char *errbuf;
+-
+- if ((errnum < 0) || (errnum > sys_nerr)) {
+- errbuf = getmem(6+1+11+1);
+- sprintf(errbuf, "Error %d", errnum);
+- return errbuf;
+- } else {
+-#ifdef SUN4_x
+- return(sys_errlist[errnum]);
+-#endif
+-#ifdef SUN5_0
+- return strerror(errnum);
+-#endif
+-
+- }
+-#endif // !__sun
+ }
+
+ extern const char *progname;
+diff --git a/make/src/implicit.cc b/make/src/implicit.cc
+index 2d388cc..a1cee7e 100644
+--- a/make/src/implicit.cc
++++ b/make/src/implicit.cc
+@@ -43,10 +43,13 @@
+ /*
+ * Included files
+ */
++#include <cstdio>
+ #include <mk/defs.h>
+ #include <mksh/macro.h> /* expand_value() */
+ #include <mksh/misc.h> /* retmem() */
+
++using std::printf;
++
+ /*
+ * Defined macros
+ */
+@@ -97,8 +100,6 @@ extern void add_target_to_chain(Name target, Chain * query);
+ * recursion_level Used for tracing
+ */
+
+-extern int printf (const char *, ...);
+-
+ static Boolean actual_doname = false;
+
+ /* /tolik/
+diff --git a/make/src/nse_printdep.cc b/make/src/nse_printdep.cc
+index 6201a18..38826d2 100644
+--- a/make/src/nse_printdep.cc
++++ b/make/src/nse_printdep.cc
+@@ -37,9 +37,12 @@
+ /*
+ * Included files
+ */
++#include <cstdio>
+ #include <mk/defs.h>
+ #include <mksh/misc.h> /* get_prop() */
+
++using std::printf;
++
+ /*
+ * File table of contents
+ */
+@@ -59,7 +62,6 @@ static void print_rule(register Name target);
+ static void print_rec_info(Name target);
+ static Boolean is_out_of_date(Property line);
+ extern void depvar_print_results (void);
+-extern int printf (const char *, ...);
+ extern int _flsbuf (unsigned int, FILE *);
+
+ /*
+diff --git a/make/vroot/lock.cc b/make/vroot/lock.cc
+index 1d6239b..1a20bc0 100644
+--- a/make/vroot/lock.cc
++++ b/make/vroot/lock.cc
+@@ -48,11 +48,6 @@
+ #include <signal.h>
+ #include <errno.h> /* errno */
+
+-#if defined(sun) || defined(HP_UX)
+-extern char *sys_errlist[];
+-extern int sys_nerr;
+-#endif
+-
+ static void file_lock_error(char *msg, char *file, char *str, int arg1, int arg2);
+
+ #define BLOCK_INTERUPTS sigfillset(&newset) ; \
+@@ -179,20 +174,6 @@ file_lock_error(char *msg, char *file, char *str, int arg1, int arg2)
+ len = strlen(msg);
+ sprintf(&msg[len], str, arg1, arg2);
+ strcat(msg, " failed - ");
+-#ifdef __sun
+- if (errno < sys_nerr) {
+-#ifdef SUN4_x
+- strcat(msg, sys_errlist[errno]);
+-#endif
+-#ifdef SUN5_0
+- strcat(msg, strerror(errno));
+-#endif
+- } else {
+- len = strlen(msg);
+- sprintf(&msg[len], NOCATGETS("errno %d"), errno);
+- }
+-#else
+ strcat(msg, strerror(errno));
+-#endif
+ }
+
+diff --git a/sccs/src/vc.c b/sccs/src/vc.c
+index d7f7187..1c0ffb1 100644
+--- a/sccs/src/vc.c
++++ b/sccs/src/vc.c
+@@ -37,6 +37,7 @@
+ */
+ /* from OpenSolaris "sccs:cmd/vc.c" */
+ # include <defines.h>
++# include <limits.h>
+ # include <locale.h>
+
+
--- /dev/null
+# Copyright © 2018 Nick Bowler
+# License GPLv2+: GNU General Public License version 2 or any later version.
+# This is free software: you are free to change and distribute it.
+# There is NO WARRANTY, to the extent permitted by law.
+#
+# This a modified version of the original ebuild from Gentoo GNU/Linux,
+# covered by the following copyright and permission notice:
+#
+# Copyright 1999-2017 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=6
+inherit flag-o-matic readme.gentoo-r1 toolchain-funcs
+
+DESCRIPTION="Original UNIX development tools"
+HOMEPAGE="http://heirloom.sourceforge.net/devtools.html"
+SRC_URI="http://downloads.sourceforge.net/project/heirloom/${PN}/${PV}/${P}.tar.bz2"
+
+LICENSE="BSD BSD-4 CDDL"
+SLOT="0"
+KEYWORDS="~amd64 ~x64-solaris"
+IUSE=""
+
+RDEPEND="app-shells/heirloom-sh
+ net-libs/libtirpc"
+DEPEND="$RDEPEND
+ virtual/pkgconfig"
+
+PATCHES=(
+ "$FILESDIR/$P-solaris.patch"
+ "$FILESDIR/$P-64-bit.patch"
+ "$FILESDIR/$P-gcc6.patch"
+)
+
+DOC_CONTENTS="
+ You may want to add /usr/5bin or /usr/ucb to \$PATH
+ to enable using the apps of heirloom toolchest by default.
+ Man pages are installed in /usr/share/man/5man/
+ You may need to set \$MANPATH to access them.
+"
+
+src_configure() {
+ pkgconfig=`tc-getPKG_CONFIG`
+ rpc_cppflags=`$pkgconfig --cflags libtirpc`
+ rpc_libs=`$pkgconfig --libs libtirpc`
+
+ sed -i \
+ -e 's:^\(SHELL =\) \(.*\):\1 /bin/jsh:' \
+ -e 's:^\(POSIX_SHELL =\) \(.*\):\1 /bin/sh:' \
+ -e "s:^\(PREFIX=\)\(.*\):\1${EPREFIX}\2:" \
+ -e "s:^\(SUSBIN=\)\(.*\):\1${EPREFIX}\2:" \
+ -e "s:^\(LDFLAGS=\):\1${LDFLAGS}:" \
+ -e "s:^\(CFLAGS=\)\(.*\):\1${CFLAGS}:" \
+ -e 's:^\(STRIP=\)\(.*\):\1true:' \
+ -e "s:^\(CXX = \)\(.*\):\1$(tc-getCXX):" \
+ -e "s:^\(INSTALL=\)\(.*\):\1$(which install):" \
+ -e "/^CPPFLAGS *=/s:$: $rpc_cppflags:" \
+ -e "/^LIBS *=/s:$: $rpc_libs:" \
+ ./mk.config
+
+ echo "CC=$(tc-getCC)" >> "./mk.config"
+}
+
+src_compile() {
+ emake -j1
+}
+
+src_install() {
+ emake ROOT="${D}" install
+ readme.gentoo_create_doc
+}
+
+pkg_postinst() {
+ readme.gentoo_print_elog
+}