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Remove: DOS support

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In 10 years there was no active development on DOS. Although it
turned out to still work, the FPS was very bad. There is little
interest in the current community to look into this.

Further more, we like to switch to c++11 functions for threads,
which are not implemented by DJGPP, the only current compiler
for DOS.

Additionally, DOS is the only platform which does not support
networking. It is the reason we have tons of #ifdefs to support
disabling networking.

By removing DOS support, we can both use c++11 functions for threads,
and remove all the code related to disabling network. Sadly, this
means we have to see DOS go.

Of course, if you feel up for the task, simply revert this commit,
and implement stub c++11 functions for threads and stub functions
for networking. We are more than happy to accept such Pull Request.
This commit is contained in:
Patric Stout
2019-03-19 22:23:09 +01:00
parent 559d4e8335
commit 72c5f2b3ee
82 changed files with 21 additions and 1305 deletions
Download Patch File Download Diff File Expand all files Collapse all files

36
config.lib
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@@ -553,10 +553,10 @@ check_params() {
# Check if all params have valid values
# OS only allows DETECT, UNIX, OSX, FREEBSD, DRAGONFLY, OPENBSD, NETBSD, HAIKU, SUNOS, CYGWIN, MINGW, OS2, and DOS
if [ -z "`echo $os | egrep '^(DETECT|UNIX|OSX|FREEBSD|DRAGONFLY|OPENBSD|NETBSD|HPUX|HAIKU|SUNOS|CYGWIN|MINGW|OS2|DOS)$'`" ]; then
# OS only allows DETECT, UNIX, OSX, FREEBSD, DRAGONFLY, OPENBSD, NETBSD, HAIKU, SUNOS, CYGWIN, MINGW, and OS2
if [ -z "`echo $os | egrep '^(DETECT|UNIX|OSX|FREEBSD|DRAGONFLY|OPENBSD|NETBSD|HPUX|HAIKU|SUNOS|CYGWIN|MINGW|OS2)$'`" ]; then
log 1 "configure: error: invalid option --os=$os"
log 1 " Available options are: --os=[DETECT|UNIX|OSX|FREEBSD|DRAGONFLY|OPENBSD|NETBSD|HPUX|HAIKU|SUNOS|CYGWIN|MINGW|OS2|DOS]"
log 1 " Available options are: --os=[DETECT|UNIX|OSX|FREEBSD|DRAGONFLY|OPENBSD|NETBSD|HPUX|HAIKU|SUNOS|CYGWIN|MINGW|OS2]"
exit 1
fi
# cpu_type can be either 32 or 64
@@ -623,7 +623,7 @@ check_params() {
detect_sse_capable_architecture
if [ "$enable_static" = "1" ]; then
if [ "$os" = "MINGW" ] || [ "$os" = "CYGWIN" ] || [ "$os" = "DOS" ]; then
if [ "$os" = "MINGW" ] || [ "$os" = "CYGWIN" ]; then
enable_static="2"
else
enable_static="0"
@@ -633,8 +633,8 @@ check_params() {
if [ "$enable_static" != "0" ]; then
log 1 "checking static... yes"
if [ "$os" != "MINGW" ] && [ "$os" != "CYGWIN" ] && [ "$os" != "OSX" ] && [ "$os" != "DOS" ]; then
log 1 "WARNING: static is only known to work on Windows, DOS, and MacOSX"
if [ "$os" != "MINGW" ] && [ "$os" != "CYGWIN" ] && [ "$os" != "OSX" ]; then
log 1 "WARNING: static is only known to work on Windows, and MacOSX"
log 1 "WARNING: use static at your own risk on this platform"
sleep 5
@@ -644,7 +644,7 @@ check_params() {
fi
if [ "$enable_unicode" = "1" ]; then
if [ "$os" = "MINGW" ] || [ "$os" = "CYGWIN" ] || [ "$os" = "DOS" ]; then
if [ "$os" = "MINGW" ] || [ "$os" = "CYGWIN" ]; then
enable_unicode="2"
else
enable_unicode="0"
@@ -784,10 +784,7 @@ check_params() {
log 1 "checking console application... enabled"
fi
if [ "$enable_network" = "1" ] && [ "$os" = "DOS" ]; then
log 1 "checking network... DOS, skipping"
enable_network=0
elif [ "$enable_network" != "0" ]; then
if [ "$enable_network" != "0" ]; then
log 1 "checking network... found"
else
log 1 "checking network... disabled"
@@ -1023,10 +1020,6 @@ check_params() {
grfcodec=""
fi
if [ "$os" = "DOS" ]; then
with_threads="0"
fi
if [ "$os" != "OSX" ] && [ "$with_application_bundle" != "0" ]; then
if [ "$with_application_bundle" = "1" ]; then
with_application_bundle="0"
@@ -1129,7 +1122,7 @@ check_params() {
fi
if [ "$personal_dir" = "1" ]; then
if [ "$os" = "MINGW" ] || [ "$os" = "CYGWIN" ] || [ "$os" = "DOS" ] || [ "$os" = "HAIKU" ]; then
if [ "$os" = "MINGW" ] || [ "$os" = "CYGWIN" ] || [ "$os" = "HAIKU" ]; then
personal_dir="OpenTTD"
elif [ "$os" = "OSX" ]; then
personal_dir="Documents/OpenTTD"
@@ -1603,11 +1596,11 @@ make_cflags_and_ldflags() {
fi
fi
if [ "$os" != "CYGWIN" ] && [ "$os" != "HAIKU" ] && [ "$os" != "OPENBSD" ] && [ "$os" != "MINGW" ] && [ "$os" != "OSX" ] && [ "$os" != "DOS" ] && [ "$os" != "OS2" ]; then
if [ "$os" != "CYGWIN" ] && [ "$os" != "HAIKU" ] && [ "$os" != "OPENBSD" ] && [ "$os" != "MINGW" ] && [ "$os" != "OSX" ] && [ "$os" != "OS2" ]; then
LIBS="$LIBS -lpthread"
fi
if [ "$os" != "CYGWIN" ] && [ "$os" != "HAIKU" ] && [ "$os" != "MINGW" ] && [ "$os" != "DOS" ]; then
if [ "$os" != "CYGWIN" ] && [ "$os" != "HAIKU" ] && [ "$os" != "MINGW" ]; then
LIBS="$LIBS -lc"
fi
@@ -2328,7 +2321,7 @@ detect_awk() {
detect_os() {
if [ "$os" = "DETECT" ]; then
# Detect UNIX, OSX, FREEBSD, DRAGONFLY, OPENBSD, NETBSD, HPUX, SUNOS, CYGWIN, MINGW, OS2, and DOS
# Detect UNIX, OSX, FREEBSD, DRAGONFLY, OPENBSD, NETBSD, HPUX, SUNOS, CYGWIN, MINGW, and OS2
# Try first via dumpmachine, then via uname
os=`echo "$host" | tr '[A-Z]' '[a-z]' | $awk '
@@ -2345,7 +2338,6 @@ detect_os() {
/cygwin/ { print "CYGWIN"; exit}
/mingw/ { print "MINGW"; exit}
/os2/ { print "OS2"; exit}
/dos/ { print "DOS"; exit}
'`
if [ -z "$os" ]; then
@@ -2369,7 +2361,7 @@ detect_os() {
if [ -z "$os" ]; then
log 1 "detecting OS... none detected"
log 1 "I couldn't detect your OS. Please use --os=OS to force one"
log 1 "Allowed values are: UNIX, OSX, FREEBSD, DRAGONFLY, OPENBSD, NETBSD, HPUX, HAIKU, SUNOS, CYGWIN, MINGW, OS2, and DOS"
log 1 "Allowed values are: UNIX, OSX, FREEBSD, DRAGONFLY, OPENBSD, NETBSD, HPUX, HAIKU, SUNOS, CYGWIN, MINGW, and OS2"
exit 1
fi
@@ -3453,7 +3445,7 @@ showhelp() {
echo " --os=OS the OS we are compiling for [DETECT]"
echo " DETECT/UNIX/OSX/FREEBSD/DRAGONFLY/OPENBSD/"
echo " NETBSD/HPUX/SUNOS/CYGWIN/"
echo " MINGW/OS2/DOS/HAIKU"
echo " MINGW/OS2/HAIKU"
echo ""
echo "Paths:"
echo " --prefix-dir=dir specifies the prefix for all installed"