#!/bin/sh --
# config.linux - linux specific configuration for sparforte

# enables opengl sdl1 postgresql readline

# NOTE
#   Essentially by creating this I can limit the amount of dependencies needed
#   and other damage sparforte's configure script can do such as calling sudo.

readonly startdir=$PWD
SOURCE_DATE_EPOCH=${SOURCE_DATE_EPOCH:-$(date +%s)}

CC=gcc
CPU_FLAG=-march
PREFIX=/usr
MANPREFIX=/usr/share/man
GMAKETYPE=make

case $(uname -m) in
    i686)   CPU=i686 ;;
    x86_64) CPU=x86-64
esac

prepare() {
    local ext=${1##*.}
    printf -- '%s: updating...\n' "$1"
    cp -- "$1".orig temp."$ext"
    if gnatprep -DconfigbuildDate="\"$(date -d @"$SOURCE_DATE_EPOCH" +%y%m%d)\"" \
                -Dconfigreleased=false \
                -DPOSTGRES=true \
                -DMYSQL=false \
                -DOPENGL=true \
                -DREADLINE=true \
                -DSOUND=false \
                -DGCGI=false \
                -DBDB=false \
                -DAPQ=true temp."$ext" "$1" 2> /dev/null; then
        chmod 0444 "$1"
        rm -- temp."$ext" 2> /dev/null
    fi
}

cd "$startdir"
cp -v src/os_bindings/spar_linux.ads src/spar_os.ads
cp -v src/scanner-calendar-latest.ads src/scanner-calendar.ads
cp -v src/scanner-calendar-latest.adb src/scanner-calendar.adb

# sdl1
SDLLIBS=$(pkg-config --libs sdl)
SDLINCL=$(pkg-config --cflags sdl)

SDLLIBSTYPE="$SDLLIBS -lSDL_image"
SDLINCLTYPE=$SDLINCL

case $CPU in
    i686)   cp -v src/spar_os-sdl-32bit.ads src/spar_os-sdl.ads ;;
    x86-64) cp -v src/spar_os-sdl-64bit.ads src/spar_os-sdl.ads
esac

# opengl
MESALIBSTYPE=$(pkg-config --libs gl glu)
MESAINCLTYPE=$(pkg-config --cflags gl glu)

# gstreamer
# Disabling gstreamer for now:
#   ./parser_sound.o: In function `parser_sound__parseplay':
#   parser_sound.adb:(.text+0xe08): undefined reference to `play_uri'
#   parser_sound.adb:(.text+0xf27): undefined reference to `gst_error'
#   ./parser_sound.o: In function `parser_sound__startupsound':
#   parser_sound.adb:(.text+0x2528): undefined reference to `startup_gstreamer'
#   collect2: error: ld returned 1 exit status
#   gnatlink: error when calling /usr/bin/gcc
# GSTREAMERFLAG=-DGSTREAMER
# GSTREAMERLIBS=$(pkg-config --cflags --libs gstreamer-1.0)
GSTREAMERFLAG=
GSTREAMERLIBS=

# postgresql
PGLIBSSUB=$(pkg-config --cflags --libs libpq)

APQMAKESUB='$(MAKE) -C apq-2.1'
APQLIBSSUB='-L./apq-2.1'
APQINCLSSUB='-I./apq-2.1'

# readline
RLINCL='-I./areadline'
RLLIBS='-lreadline -lhistory'

# disable mysql support since it seems to include nonsense code:
#   apq-mysql.ads:38:24: identifier expected
#   apq-mysql.ads:40:23: aggregate may not have single positional component
#   apq-mysql.ads:40:24: missing operand
cd "$startdir"/src/apq-2.1
HAVE_MY=0 ./configure

touch c_gstreamer.c

cd "$startdir"/src
prepare world.ads
prepare user_io-getline.adb
prepare scanner_res.adb
prepare scanner_res.ads
prepare builtins.adb
prepare parser_db.adb
prepare parser_dbm.adb
prepare parser_mysql.adb
prepare parser_mysqlm.adb
prepare parser_sound.adb
prepare parser_pen.adb
prepare parser_gnat_cgi.adb
prepare parser_bdb.adb
prepare parser_btree_io.adb
prepare parser_hash_io.adb

sed "s!CPUFLAG!$CPU_FLAG!g
     s!CCTYPE!$CC!g
     s!^CPU=!&$CPU!g
     s!CPUTYPE!$ARCH!g
     s!MANPREFIXSUB!$MANPREFIX!g
     s!PREFIXSUB!$PREFIX!g
     s!GMAKETYPE!$GMAKETYPE!g
     s!SDLLIBSTYPE!$SDLLIBSTYPE!g
     s!SDLINCLTYPE!$SDLINCLTYPE!g
     s!CFLAGSTYPE!$CFLAGSTYPE!g
     s!PGLIBSSUB!$PGLIBSSUB!g
     s!MYSQLLIBSSUB!$MYSQLLIBSSUB!g
     s!APQLIBSSUB!$APQLIBSSUB!g
     s!APQINCLSSUB!$APQINCLSSUB!g
     s!SDLINCLSSUB!$SDLINCLSSUB!g
     s!APQMAKESUB!$APQMAKESUB!g
     s!FASTCGISUB!$FASTCGISUB!g
     s!GSTREAMERLIBSSUB!$GSTREAMERLIBS!g
     s!GSTREAMERFLAGSUB!$GSTREAMERFLAG!g
     s!GSTREAMEROUTSUB!$GSTREAMEROUT!g
     s!MESAINCLSUB!$MESAINCLTYPE!g
     s!MESALIBSSUB!$MESALIBSTYPE!g
     s!BDBSUB!$BDBLIBS!g
     s!BDBINCLSUB!$BDBINCL!g
     s!RLINCLSUB!$RLINCL!g
     s!RLLIBSSUB!$RLLIBS!g" < GNUmakefile.orig > GNUmakefile

cd "$startdir"/src/areadline
sed "s!RLINCLSUB!$RLINCL!g
     s!RLLIBSSUB!$RLLIBS!g" < GNUmakefile.orig > GNUmakefile

cd "$startdir"
sed "s!CPUFLAG!$CPU_FLAG!g
     s!CCTYPE!$CC!g
     s!CPUTYPE!$ARCH!g
     s!GMAKETYPE!$GMAKETYPE!g
     s!CFLAGSTYPE!$CFLAGSTYPE!g
     s!MANPREFIXSUB!$MANPREFIX!g
     s!PREFIXSUB!$PREFIX!g" < GNUmakefile.orig > GNUmakefile