4 files changed, 1 insertions, 25 deletions

diff --git a/lib/libc/stdio/Makefile.inc b/lib/libc/stdio/Makefile.inc
index 3841cfc15e3f..7ab0337938ae 100644
--- a/lib/libc/stdio/Makefile.inc
+++ b/lib/libc/stdio/Makefile.inc
@@ -4,10 +4,6 @@
 # stdio sources
 .PATH: ${.CURDIR}/../libc/stdio
 
-.if WANT_COMPAT4_STDIO
-CFLAGS+=-DCOMPAT4_STDIO
-.endif
-
 SRCS+=	_flock_stub.c asprintf.c clrerr.c fclose.c fdopen.c feof.c ferror.c \
 	fflush.c fgetc.c fgetln.c fgetpos.c fgets.c fgetwc.c fgetws.c \
 	fileno.c findfp.c flags.c fopen.c fprintf.c fpurge.c fputc.c fputs.c \
diff --git a/lib/libc/stdio/findfp.c b/lib/libc/stdio/findfp.c
index 283ff5ca3bc4..5538a57260bc 100644
--- a/lib/libc/stdio/findfp.c
+++ b/lib/libc/stdio/findfp.c
@@ -69,16 +69,12 @@ static struct glue uglue = { NULL, FOPEN_MAX - 3, usual };
 
 static struct __sFILEX __sFX[3];
 
-#ifndef COMPAT4_STDIO
-static
-#endif
-FILE __sF[3] = {
+static FILE __sF[3] = {
 	std(__SRD, STDIN_FILENO),
 	std(__SWR, STDOUT_FILENO),
 	std(__SWR|__SNBF, STDERR_FILENO)
 };
 
-
 /*
  * The following kludge is done to ensure enough binary compatibility
  * with future versions of libc.  Or rather it allows us to work with
diff --git a/share/examples/etc/make.conf b/share/examples/etc/make.conf
index 1aa2f7888f64..a0d269e39370 100644
--- a/share/examples/etc/make.conf
+++ b/share/examples/etc/make.conf
@@ -171,14 +171,6 @@
 #COMPAT3X=	yes
 #COMPAT4X=	yes
 #
-# If you have a commercial application for a FreeBSD 4.x that cannot easily
-# be updated to a FreeBSD 5.x application and it generates the error message
-# "undefined reference to `__sF'", then you can uncomment the following
-# line to build a libc compatibility with FreeBSD 4.x.  NOTE, THIS SHOULD BE
-# USED AS A LAST RESORT.
-#
-#WANT_COMPAT4_STDIO=	yes
-#
 #
 # Default format for system documentation, depends on your printer.
 # Set this to "ascii" for simple printers or screen
diff --git a/share/man/man5/make.conf.5 b/share/man/man5/make.conf.5
index 0a810c580ac9..0d6c7455996d 100644
--- a/share/man/man5/make.conf.5
+++ b/share/man/man5/make.conf.5
@@ -605,14 +605,6 @@ levels to a lower one.
 and above is known to trigger known optimizer bugs at various
 times \(em this is worse on the Alpha platform.
 The value assigned is the highest optimization value used.
-.It Va WANT_COMPAT4_STDIO
-.Pq Vt bool
-If you have a commercial application for a FreeBSD 4.x that cannot easily
-be updated to a FreeBSD 5.x application and it generates the error message
-.Dq undefined reference to `__sF' ,
-then you can uncomment the following line to build a libc compatibility with
-FreeBSD 4.x.
-.Em NOTE, THIS SHOULD BE USED AS A LAST RESORT.
 .El
 .Pp
 The following list provides a name and short description for variables