system/powernowd: Use -std=gnu90.

Signed-off-by: Dave Woodfall <dave@slackbuilds.org>

Signed-off-by: Willy Sudiarto Raharjo <willysr@slackbuilds.org>

system/powernowd/README

@@ -1,57 +1,11 @@
-Overview:
 This is a very simple program that will adjust the speed of your CPU
-depending on system load.  It works as a client of the CPUFreq driver.
-It is designed for use with CPU's supporting AMD's PowerNow power management
-scheme, as it's algorithm works better if there are more then two CPU
-speeds available.  (aka, ARM, AMD K6/K7, Via C3, and Crusoe as opposed to
-traditional Intel and Ultrasparc).
+depending on system load.
 
-This program is essentially a simple client to the CPUFreq sysfs interface.
-This means that you -need- to be running Linux v2.5 or later that includes
-the sysfs interface.  This daemon will -not- work with the CPUFreq driver
-interface included in Linux v2.4.  Feel free to write your own daemon
-to support that if you like; you can even use this as a starting point.
-If there's enough clamoring for it, then maybe I'll whip up something.
-You also need a CPU that supports frequency scaling and supports the CPUFreq
-interface.  This code has been tested on various AMD and PPC processors
+It is designed for use with CPU's supporting AMD's PowerNow power
+management scheme, as it's algorithm works better if there are more then
+two CPU speeds available.  (aka, ARM, AMD K6/K7, Via C3, and Crusoe as
+opposed to traditional Intel and Ultrasparc).
 
-I have been running this daemon on my AMD laptop for over 2 years with no
-problems to report, and it's nice that my laptop remains cool unless I'm
-really doing something intensive, like watching DivX movies, without me
-having to manually intervene and set the speed. I just recently bought an
-Apple iBook G3, and powernowd-0.80 worked flawlessly on it right out of
-the box.
-
-
-Features:
-
-This daemon's goal is simplicity and speed.  It doesn't try and make
-too many decisions for you.  That's its beauty, but it may not be what
-everyone's looking for. Some of the features this daemon has:
-
-One, simple heuristic to determine CPU load: "user + sys" time.
-Ignore "niced" programs (setiathome, itself, etc). In my mind this is
-consistent with what is meant when someone 'nice's a program to begin
-with. (configurable in v0.85+) Designed for CPU's that support more
-then two speed states, but works well with anything.  Very fast, low
-overhead /proc/stat gathering (method stolen from procps).  Supports SMP
-Will automatically switch to 'userspace' governor.  Care taken to make
-the code non-root exploitable (but please audit for yourself first!)
-Frequency step size is configurable (default to 100MHz/step) 4 different
-behavioral modes to choose from (SINE, AGGRESSIVE, PASSIVE, LEAPS),
-which determine the behavior when the load changes. Configurable from the
-command line.  Written in C for speed and simplicity.  Logging to stdout
-or syslog Configurable Polling frequency in milliseconds (defaults to 1s)
-Configurable highwater/lowwater marks for CPU usage. (defaults 80/20%)
-
-Many similar daemons use other methods to determine what speed to use,
-such as battery status, AC status, temperature, fan status, etc. They all
-have their place.  I however feel that in the grand scheme of things none
-of the above matters. When I'm not using my CPU, I don't care if it's
-running at a slower speed. When I -am- using my CPU, I only need it to
-be fast enough to handle the task at hand without hiccuping. And when I'm
-taxing my CPU, I want it running full speed. That's all this daemon does,
-monitor CPU load and adjust the speed accordingly.  Since in all reality
-my CPU is idle 99% of the time (or playing mp3's which it can easily do
-at it's lowest speed rating), this by definition leads to low power usage,
-low temperatures, low speed fans, and better battery life.
+This program is essentially a simple client to the CPUFreq sysfs
+interface.  This means that you -need- to be running Linux v2.5 or later
+that includes the sysfs interface.

system/powernowd/powernowd.SlackBuild

@@ -2,7 +2,25 @@
 
 # Slackware build script for powernowd
 
-# Written by David Woodfall <dave@slackbuilds.org>
+# Copyright 2022 Dave Woodfall <dave@slackbuilds.org>
+# All rights reserved.
+#
+# Redistribution and use of this script, with or without modification, is
+# permitted provided that the following conditions are met:
+#
+# 1. Redistributions of this script must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+#
+#  THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR IMPLIED
+#  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+#  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
+#  EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+#  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+#  OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+#  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+#  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+#  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 cd $(dirname $0) ; CWD=$(pwd)
 
@@ -61,17 +79,18 @@ find -L . \
  \( -perm 666 -o -perm 664 -o -perm 600 -o -perm 444 -o -perm 440 -o -perm 400 \) \
  -exec chmod 644 {} \;
 
-sed -i "s%-O2%$SLKCFLAGS%" Makefile
+# gnu90 finds the inline function inside the enum.  Using static also seems
+# to work.
+sed -i "s%-O2%-std=gnu90 $SLKCFLAGS%" Makefile
 sed -i "s%/usr/sbin%$PKG/usr/sbin%" Makefile
 
 make
 make install
 
 # Remove trailing whitespace at the same time
-cat powernowd.init | sed "s%\s*$%%" > $PKG/etc/rc.d/rc.powernowd.new
+sed "s,[[:space:]]\+$,," powernowd.init > $PKG/etc/rc.d/rc.powernowd.new
 
-find $PKG | xargs file | grep -e "executable" -e "shared object" | grep ELF \
-  | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true
+strip --strip-unneeded $PKG/usr/sbin/powernowd
 
 mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
 cp -a \