configure

   1 #!/bin/sh
   2
   3 prefix=/usr/local
   4
   5 libs=`cat << EOF
   6 glib-2.0
   7 gtk+-2.0
   8 gtk+-x11-2.0
   9 EOF
  10 `
  11 clear_config() {
  12         rm -f config.mak 2>/dev/null
  13 }
  14
  15 add_config() {
  16         printf "%s\n" "$1" >> config.mak
  17 }
  18
  19 add_cflags() {
  20         add_config "CFLAGS += $1"
  21 }
  22
  23 add_ldflags() {
  24         add_config "LDFLAGS += $1"
  25 }
  26
  27 get_pkgconf_cflags() {
  28         pkg-config --cflags "$1" 2>/dev/null
  29 }
  30
  31 get_pkgconf_ldflags() {
  32         pkg-config --libs "$1" 2>/dev/null
  33 }
  34
  35 add_pkgconf_cflags() {
  36         fallback="$2"
  37         flags=$(get_pkgconf_cflags "$1")
  38         [ -z "$flags" ] && flags="$fallback"
  39         add_cflags "$flags"
  40 }
  41
  42 add_pkgconf_ldflags() {
  43         fallback="$2"
  44         flags=$(get_pkgconf_ldflags "$1")
  45         [ -z "$flags" ] && flags="$fallback"
  46         add_ldflags "$flags"
  47 }
  48
  49 add_lib() {
  50         add_pkgconf_cflags "$1" "$2"
  51         add_pkgconf_ldflags "$1" "$3"
  52 }
  53
  54 check_program() {
  55         program="$1"
  56         needed="$2"
  57         result=$(which "$program" 2>/dev/null)
  58         if [ "$needed" = "1" ] && [ -z "$result" ] ; then
  59                 echo "error: needed program $program not found" >&2
  60                 kill -9 $$
  61         fi
  62         printf "%s\n" "$program"
  63 }
  64
  65 pdisable() {
  66         local a="$1"
  67         printf "--enable-%s[=yes/no/auto]\tenable %s %s [default: auto]\n" "$a" "$a" "$2"
  68 }
  69
  70 usage() {
  71         echo "supported arguments"
  72         echo "--help                    show this text"
  73         echo "--prefix=/path            default: $prefix"
  74         echo "--exec_prefix=/path       default: $prefix/bin"
  75         echo "--bindir=/path            default: $prefix/bin"
  76         echo "--libdir=/path            default: $prefix/lib"
  77         echo "--includedir=/path        default: $prefix/include"
  78         echo "--sysconfdir=/path        default: $prefix/etc"
  79         echo
  80         for i in libsexy gtkspell ; do pdisable $i "library usage" ; done
  81         echo
  82         for i in python tcl perl ; do pdisable $i plugin ; done
  83         echo
  84         echo "NOTE: the auto detection of the scripting language plugins"
  85         echo "works only for non-crosscompile scenarios because the authors of those languages"
  86         echo "stubbornly require you to execute the interpreter in a specific way to query"
  87         echo "the necessary flags rather than relying on standardtools like pkgconfig."
  88         echo "because of that, if set to yes, the required C/LDFLAGS for the plugins need to be passed"
  89         echo "manually to configure using PERL_CFLAGS=... PY_LDFLAGS=... TCL_CFLAGS=... /configure ..."
  90         echo
  91         exit 1
  92 }
  93
  94 ismac() {
  95         uname -s | grep Darwin >/dev/null
  96 }
  97
  98 isbsd() {
  99         uname -s | grep BSD >/dev/null
 100 }
 101
 102 spliteq() {
 103         arg=$1
 104         echo "${arg#*=}"
 105         #alternatives echo "$arg" | cut -d= -f2-
 106         # or echo "$arg" | sed 's/[^=]*=//'
 107 }
 108
 109 check_feature() {
 110         local f="$1"
 111         local res=
 112         case "$2" in
 113         --enable-$f) res=yes;;
 114         --disable-$f) res=no;;
 115         --enable-$f=*) res=`spliteq $2`;;
 116         esac
 117         [ -n "$res" ] && eval $3=$res
 118 }
 119
 120 parsearg() {
 121         for i in python perl tcl libsexy gtkspell ; do check_feature $i "$1" feature_$i ; done
 122         case "$1" in
 123         --prefix=*) prefix=`spliteq $1`;;
 124         --exec_prefix=*) exec_prefix=`spliteq $1`;;
 125         --bindir=*) bindir=`spliteq $1`;;
 126         --libdir=*) libdir=`spliteq $1`;;
 127         --includedir=*) includedir=`spliteq $1`;;
 128         --sysconfdir=*) sysconfdir=`spliteq $1`;;
 129         --help) usage;;
 130         esac
 131 }
 132
 133 fail() { printf "%s\n" "$1" >&2 ; exit 1 ; }
 134
 135 # Get a temporary filename
 136 i=0
 137 set -C
 138 while : ; do i=$(($i+1))
 139 tmpc="./conf$$-$PPID-$i.c"
 140 2>|/dev/null > "$tmpc" && break
 141 test "$i" -gt 50 && fail "$0: cannot create temporary file $tmpc"
 142 done
 143 set +C
 144 trap 'rm "$tmpc"' EXIT INT QUIT TERM HUP
 145
 146 check_compile() {
 147         printf "checking %s ... " "$1"
 148         printf "$3" > "$tmpc"
 149         local res=0
 150         $CC $OUR_CPPFLAGS $CPPFLAGS $2 $CFLAGS "$tmpc" $OUR_LDFLAGS -o /dev/null >/dev/null 2>&1 \
 151         || res=1
 152         test x$res = x0 && \
 153         { printf "yes\n" ; test x"$2" = x || OUR_CPPFLAGS="$OUR_CPPFLAGS $2" ; } \
 154         || printf "no\n"
 155         return $res
 156 }
 157
 158 check_define() {
 159         printf "checking whether \$CC defines %s ... " "$1"
 160         local res=1
 161         $CC $OUR_CPPFLAGS $CPPFLAGS $CFLAGS -dM -E - </dev/null | grep "$1" >/dev/null && res=0
 162         test x$res = x0 && printf "yes\n" || printf "no\n"
 163         return $res
 164 }
 165
 166 check_compile_run() {
 167         printf "checking %s ... " "$1"
 168         printf "$2" > "$tmpc"
 169         local res=0
 170         $CC $OUR_CPPFLAGS $CPPFLAGS $CFLAGS "$tmpc" -o "$tmpc".out >/dev/null 2>&1 \
 171         || res=1
 172         test x$res = x0 && { "$tmpc".out || res=1 ; }
 173         rm -f "$tmpc".out
 174         test x$res = x0 && printf "yes\n" || printf "no\n"
 175         return $res
 176 }
 177
 178 check_link_silent() {
 179         printf "$2" > "$tmpc"
 180         $CC $OUR_CPPFLAGS $CPPFLAGS $1 $CFLAGS "$tmpc" -o /dev/null >/dev/null 2>&1
 181 }
 182
 183 check_link() {
 184         printf "checking %s ... " "$1"
 185         local res=0
 186         check_link_silent "$2" "$3" || res=1
 187         test x$res = x0 && printf "yes\n" || printf "no\n"
 188         return $res
 189 }
 190
 191 test -z "$CC" && CC=cc
 192
 193 check_compile 'whether C compiler works' '' 'int main() {return 0;}' || fail 'error: install a C compiler and library'
 194 check_compile 'whether we have memrchr()' "-DGNU_SOURCE -DHAVE_MEMRCHR" \
 195 '#define _GNU_SOURCE\n#include <string.h>\nint main() {\nvoid *p = memrchr("foo", 0, 3);\nreturn 0;}'
 196
 197 check_link 'whether we have ssl lib and headers' '-lssl -lcrypto' \
 198   "#include <openssl/ssl.h>\nint main() { return 0; }" || \
 199   fail 'ssl library not found'
 200 OUR_LDFLAGS='-lssl -lcrypto'
 201
 202 check_compile 'whether we have SSL_CTX_get_ssl_method()' \
 203   '-DHAVE_SSL_CTX_get_ssl_method' \
 204   "#include <openssl/ssl.h>\nint main() { SSL_CTX *c = 0; (void)SSL_CTX_get_ssl_method(c); return 0;}"
 205
 206 for i in  python perl tcl libsexy gtkspell ; do eval feature_$i=auto ; done
 207 while true ; do
 208         case $1 in
 209         -*) parsearg "$1"; shift;;
 210         *) break ;;
 211         esac
 212 done
 213
 214 [ -z "$exec_prefix" ] && exec_prefix=$prefix
 215 [ -z "$libdir" ] && libdir=$prefix/lib
 216 [ -z "$includedir" ] && includedir=$prefix/include
 217 [ -z "$sysconfdir" ] && sysconfdir=$prefix/etc
 218 [ -z "$bindir" ] && bindir=$exec_prefix/bin
 219 [ -z "$CC" ] && CC=cc
 220
 221 clear_config
 222
 223 add_config "prefix = $prefix"
 224 add_config "exec_prefix = $exec_prefix"
 225 add_config "bindir = $bindir"
 226 add_config "libdir = $libdir"
 227 add_config "includedir = $includedir"
 228 add_config "sysconfdir = $sysconfdir"
 229
 230 add_config "CC ?= $CC"
 231
 232 [ -z "$CPPFLAGS" ] || add_config "USER_CPPFLAGS = $CPPFLAGS"
 233 [ -z "$OUR_CPPFLAGS" ] || add_config "USER_CPPFLAGS += $OUR_CPPFLAGS"
 234 [ -z "$CFLAGS" ] ||   add_config "USER_CFLAGS = $CFLAGS"
 235 [ -z "$LDFLAGS" ] ||   add_config "USER_LDFLAGS = $LDFLAGS"
 236
 237 add_cflags "-DXCHATLIBDIR=\\\"$libdir/xchat\\\""
 238 add_cflags "-DXCHATSHAREDIR=\\\"$prefix/share/xchat\\\""
 239 add_cflags "-DUSE_OPENSSL"
 240
 241 for lib in $libs ; do add_lib "$lib" ; done
 242 add_lib openssl "" "-lssl -lcrypto"
 243
 244 prog1=$(check_program "gdk-pixbuf-csource" 1)
 245 add_config "PIXMAPCONVERT = $prog1"
 246
 247 for i in libsexy gtkspell ; do
 248         eval enabled=\${feature_$i}
 249         printf "checking whether to use library $i..."
 250         if [ "$enabled" = yes ] || [ "$enabled" = auto ] ; then
 251                 l=$i
 252                 [ $l = gtkspell ] && l=gtkspell-2.0
 253                 spell_flags=$(get_pkgconf_cflags $l)
 254                 if [ ! -z "$spell_flags" ] ; then
 255                         add_cflags "$spell_flags"
 256                         spell_flags=$(get_pkgconf_ldflags $i)
 257                         add_ldflags "$spell_flags"
 258                         if [ "$i" = "libsexy" ] ; then
 259                                 add_cflags "-DUSE_LIBSEXY"
 260                         else
 261                                 add_cflags "-DUSE_GTKSPELL"
 262                         fi
 263                         printf "yes\n"
 264                 else
 265                         if [ "$enabled" = yes ] ; then
 266                                 printf "error: $i requested but not found!"
 267                                 exit 1
 268                         fi
 269                         printf "no\n"
 270                 fi
 271         fi
 272 done
 273
 274 # plugin stuff ...
 275
 276 use_plugin=
 277
 278 printf "checking whether to use perl plugin..."
 279 if [ "$feature_perl" = auto ] ; then
 280         perl=$(check_program "perl" 0)
 281         if [ -n "$perl" ] ; then
 282                 PERL_CFLAGS=`$perl -MExtUtils::Embed -e ccopts 2>/dev/null`
 283                 PERL_LDFLAGS=`$perl -MExtUtils::Embed -e ldopts 2>/dev/null | sed 's/-lgdbm //'`
 284                 feature_perl=yes
 285         fi
 286 fi
 287 if [ "$feature_perl" = yes ] ; then
 288         printf "yes\n"
 289         add_config "PERL_CFLAGS = $PERL_CFLAGS"
 290         add_config "PERL_LDFLAGS = $PERL_LDFLAGS"
 291         add_config "PLUGINS += perl.so"
 292         # there are actually 2 plugins, "old" and new, but all scripts i've seen only use old
 293         add_cflags "-DOLD_PERL"
 294         use_plugin=1
 295 else
 296         printf "no\n"
 297 fi
 298 printf "checking whether to use tcl plugin..."
 299 if [ "$feature_tcl" = auto ] ; then
 300         tcl=$(check_program "tclsh" 0)
 301         if [ -n "$tcl" ] ; then
 302                 TCL_CFLAGS=$(get_pkgconf_cflags tcl)
 303                 TCL_LDFLAGS=$(get_pkgconf_ldflags tcl)
 304                 tcl_error=
 305                 # tcl 8.5 does not come with a pkgconfig file
 306                 # tcl 8.6. comes with a buggy one that fails to include its own library
 307                 # https://sourceforge.net/tracker/?func=detail&aid=3598298&group_id=10894&atid=110894
 308                 # hopefully tcl 8.7 will come with a *working* pkgconfig file ...
 309                 # until that happens, we need to fall back to its proprietary tclConfig system.
 310                 if [ -z "$TCL_LDFLAGS" ] || ! echo "$TCL_LDFLAGS" | grep "[-]ltcl" > /dev/null ; then
 311                         tcl_found=
 312                         for i in "$libdir" "$prefix"/lib/ "$prefix"/lib64/ /lib /lib64 /usr/lib /usr/lib64 ; do
 313                                 printf "searching tclConfig.sh in $i ... "
 314                                 if [ -e "$i"/tclConfig.sh ] ; then
 315                                         . "$i"/tclConfig.sh
 316                                         TCL_LDFLAGS="$TCL_LIB_SPEC $TCL_LIBS"
 317                                         tcl_found=1
 318                                         break
 319                                 fi
 320                         done
 321                         if [ -z "$tcl_found" ] ; then
 322                                 tcl_error=1
 323                         fi
 324                 fi
 325                 [ -z "$tcl_error" ] && feature_tcl=yes
 326         fi
 327 fi
 328 if [ "$feature_tcl" = yes ] ; then
 329         printf "yes\n"
 330         add_config "TCL_CFLAGS = $TCL_CFLAGS"
 331         add_config "TCL_LDFLAGS = $TCL_LDFLAGS"
 332         add_config "PLUGINS += tcl.so"
 333         use_plugin=1
 334 else
 335         printf "no\n"
 336 fi
 337 printf "checking whether to use python plugin..."
 338 if [ "$feature_python" = auto ] ; then
 339         python=$(check_program "python" 0)
 340         if [ -n "$python" ] ; then
 341                 PY_CFLAGS=$(get_pkgconf_cflags python)
 342                 [ -z "$PY_CFLAGS" ] && PY_CFLAGS=$(get_pkgconf_cflags python-2.7)
 343                 if  [ -z "$PY_CFLAGS" ] ; then
 344                         for i in "$prefix" /usr /usr/local/ ; do
 345                                 printf "searching Python.h in $i/include/python2.7 ... "
 346                                 if [ -e "$i"/include/python2.7/Python.h ] ; then
 347                                         PY_CFLAGS=-I"$i"/include/python2.7
 348                                         printf "SUCCESS\n"
 349                                         break;
 350                                 else
 351                                         printf "FAIL\n"
 352                                 fi
 353                         done
 354                 fi
 355                 PY_LDFLAGS=$(get_pkgconf_ldflags python)
 356                 [ -z "$PY_LDFLAGS" ] && PY_LDFLAGS=$(get_pkgconf_ldflags python-2.7)
 357                 [ -z "$PY_LDFLAGS" ] && PY_LDFLAGS=-lpython2.7
 358                 [ ! -z "$PY_CFLAGS" ] && feature_python=yes
 359         fi
 360 fi
 361 if [ "$feature_python" = yes ] ; then
 362         printf "yes\n"
 363         printf "WARNING: python plugin needs environment variable PYTHONHOME\n"
 364         printf "  set to python's prefix.\n"
 365         printf "  lack of that environment variable will cause ixchat exitting\n"
 366         printf "  when the plugin is loaded.\n"
 367         printf "  on sabotage linux, use \"PYTHONHOME=/ ixchat\"\n"
 368         printf "  to launch the program.\n"
 369         add_config "PY_CFLAGS = $PY_CFLAGS"
 370         add_config "PY_LDFLAGS = $PY_LDFLAGS"
 371         add_config "PLUGINS += python.so"
 372         use_plugin=1
 373 else
 374         printf "no\n"
 375 fi
 376
 377 if [ "$use_plugin" = 1 ] ; then
 378         add_cflags "-DUSE_PLUGIN"
 379 fi
 380
 381 if isbsd || ismac ; then
 382         add_config "INSTALL_FLAGS=-m"
 383 fi
 384
 385 add_cflags "\$(USER_CPPFLAGS) \$(USER_CFLAGS)"
 386 add_ldflags "\$(USER_LDFLAGS)"
 387 echo done, now run make \&\& make install
 388