configure

   1 #!/bin/sh
   2 #
   3 # tcc configure script (c) 2003 Fabrice Bellard
   4
   5 # set temporary file name
   6 # if test ! -z "$TMPDIR" ; then
   7 #     TMPDIR1="${TMPDIR}"
   8 # elif test ! -z "$TEMPDIR" ; then
   9 #     TMPDIR1="${TEMPDIR}"
  10 # else
  11 #     TMPDIR1="/tmp"
  12 # fi
  13 #
  14 # bashism: TMPN="${TMPDIR1}/tcc-conf-${RANDOM}-$$-${RANDOM}.c"
  15
  16 TMPN="./conftest-$$"
  17 TMPH=$TMPN.h
  18
  19 # default parameters
  20 prefix=""
  21 execprefix=""
  22 bindir=""
  23 libdir=""
  24 tccdir=""
  25 includedir=""
  26 mandir=""
  27 infodir=""
  28 sysroot=""
  29 cross_prefix=""
  30 cc="gcc"
  31 ar="ar"
  32 bigendian="no"
  33 mingw32="no"
  34 LIBSUF=".a"
  35 EXESUF=""
  36 DLLSUF=".so"
  37 tcc_usrinclude=""
  38 tcc_sysincludepaths=""
  39 tcc_libpaths=""
  40 tcc_crtprefix=""
  41 tcc_elfinterp=""
  42 triplet=
  43 tcc_lddir=
  44 confvars=
  45 suggest="yes"
  46 gcc_major=0
  47 gcc_minor=0
  48 cc_name="gcc"
  49 ar_set=
  50 cpu=
  51 cpuver=
  52 dwarf=
  53 targetos=
  54 build_cross=
  55
  56 # use CC/AR from environment when set
  57 test -n "$CC" && cc="$CC"
  58 test -n "$AR" && ar="$AR"
  59 test -n "CFLAGS" && CFLAGS="-Wall -O2"
  60
  61 # find source path
  62 source_path=${0%configure}
  63 source_path=${source_path%/}
  64
  65 for opt do
  66   eval opt=\"$opt\"
  67   case "$opt" in
  68   --prefix=*) prefix=`echo $opt | cut -d '=' -f 2-`
  69   ;;
  70   --exec-prefix=*) execprefix=`echo $opt | cut -d '=' -f 2-`
  71   ;;
  72   --tccdir=*) tccdir=`echo $opt | cut -d '=' -f 2-`
  73   ;;
  74   --bindir=*) bindir=`echo $opt | cut -d '=' -f 2-`
  75   ;;
  76   --libdir=*) libdir=`echo $opt | cut -d '=' -f 2-`
  77   ;;
  78   --includedir=*) includedir=`echo $opt | cut -d '=' -f 2-`
  79   ;;
  80   --sharedir=*) sharedir=`echo $opt | cut -d '=' -f 2-`
  81   ;;
  82   --mandir=*) mandir=`echo $opt | cut -d '=' -f 2-`
  83   ;;
  84   --infodir=*) infodir=`echo $opt | cut -d '=' -f 2-`
  85   ;;
  86   --docdir=*) docdir=`echo $opt | cut -d '=' -f 2-`
  87   ;;
  88   --sysroot=*) sysroot=`echo $opt | cut -d '=' -f 2-`
  89   ;;
  90   --targetos=*) targetos=`echo $opt | cut -d '=' -f 2-`
  91   ;;
  92   --source-path=*) source_path=`echo $opt | cut -d '=' -f 2-`
  93   ;;
  94   --cross-prefix=*) cross_prefix=`echo $opt | cut -d '=' -f 2-`
  95   ;;
  96   --cc=*) cc=`echo $opt | cut -d '=' -f 2-`
  97   ;;
  98   --ar=*) ar=`echo $opt | cut -d '=' -f 2-` ; ar_set="yes"
  99   ;;
 100   --extra-cflags=*) CFLAGS="${opt#--extra-cflags=}"
 101   ;;
 102   --extra-ldflags=*) LDFLAGS="${opt#--extra-ldflags=}"
 103   ;;
 104   --extra-libs=*) extralibs="${opt#--extra-libs=}"
 105   ;;
 106   --sysincludepaths=*) tcc_sysincludepaths=`echo $opt | cut -d '=' -f 2-`
 107   ;;
 108   --libpaths=*) tcc_libpaths=`echo $opt | cut -d '=' -f 2-`
 109   ;;
 110   --crtprefix=*) tcc_crtprefix=`echo $opt | cut -d '=' -f 2-`
 111   ;;
 112   --elfinterp=*) tcc_elfinterp=`echo $opt | cut -d '=' -f 2-`
 113   ;;
 114   --triplet=*) triplet=`echo $opt | cut -d '=' -f 2-`
 115   ;;
 116   --cpu=*) cpu=`echo $opt | cut -d '=' -f 2-`
 117   ;;
 118   --dwarf=*) dwarf=`echo $opt | cut -d '=' -f 2-`
 119   ;;
 120   --enable-cross) confvars="$confvars cross"
 121   ;;
 122   --disable-static) confvars="$confvars static=no"
 123   ;;
 124   --enable-static) confvars="$confvars static"
 125   ;;
 126   --disable-rpath) confvars="$confvars rpath=no"
 127   ;;
 128   --debug) confvars="$confvars debug"
 129   ;;
 130   --with-libgcc) confvars="$confvars libgcc"
 131   ;;
 132   --with-selinux) confvars="$confvars selinux"
 133   ;;
 134   --tcc-switches=*) tcc_switches=`echo $opt | cut -d '=' -f 2-`
 135   ;;
 136   --config-mingw32*) mingw32=$(echo "$opt=yes" | cut -d '=' -f 2)
 137   ;;
 138   --config-*) confvars="$confvars ${opt#--config-}"; suggest="no"
 139   ;;
 140   --help|-h) show_help="yes"
 141   ;;
 142   *) echo "configure: WARNING: unrecognized option $opt"
 143   ;;
 144   esac
 145 done
 146
 147 show_help() {
 148 cat << EOF
 149 Usage: configure [options]
 150 Options: [defaults in brackets after descriptions]
 151
 152 Standard options:
 153   --help                   print this message
 154   --prefix=PREFIX          install in PREFIX [$prefix]
 155   --exec-prefix=EPREFIX    install architecture-dependent files in EPREFIX
 156                            [same as prefix]
 157   --bindir=DIR             user executables in DIR [EPREFIX/bin]
 158   --libdir=DIR             object code libraries in DIR [EPREFIX/lib]
 159   --tccdir=DIR             installation directory [EPREFIX/lib/tcc]
 160   --includedir=DIR         C header files in DIR [PREFIX/include]
 161   --sharedir=DIR           documentation root DIR [PREFIX/share]
 162   --docdir=DIR             documentation in DIR [SHAREDIR/doc/tcc]
 163   --mandir=DIR             man documentation in DIR [SHAREDIR/man]
 164   --infodir=DIR            info documentation in DIR [SHAREDIR/info]
 165
 166 Advanced options (experts only):
 167   --source-path=PATH       path of source code [$source_path]
 168   --sysroot=PREFIX         prepend PREFIX to library/include paths [$sysroot]
 169   --cc=CC                  use C compiler CC [$cc]
 170   --ar=AR                  create archives using AR [$ar]
 171   --extra-cflags=          specify compiler flags [$CFLAGS]
 172   --extra-ldflags=         specify linker options [$LDFLAGS]
 173
 174   --debug                  include debug info with resulting binaries
 175   --disable-static         make libtcc.so instead of libtcc.a
 176   --enable-static          make libtcc.a instead of libtcc.dll (win32)
 177   --disable-rpath          disable use of -rpath with libtcc.so
 178   --with-libgcc            use libgcc_s.so.1 instead of libtcc1.a
 179   --with-selinux           use mmap for executable memory (tcc -run)
 180   --enable-cross           build cross compilers (see also 'make help')
 181
 182   --sysincludepaths=...    specify system include paths, colon separated
 183   --libpaths=...           specify system library paths, colon separated
 184   --crtprefix=...          specify locations of crt?.o, colon separated
 185   --elfinterp=...          specify elf interpreter
 186   --triplet=...            specify system library/include directory triplet
 187   --tcc-switches=...       specify implicit switches passed to tcc
 188
 189   --config-uClibc,-musl    enable system specific configurations
 190   --config-mingw32         build on windows using msys, busybox, etc.
 191   --config-backtrace=no    disable stack backtraces (with -run or -bt)
 192   --config-bcheck=no       disable bounds checker (-b)
 193   --config-predefs=no      do not compile tccdefs.h, instead just include
 194   --config-new_macho=no|yes Force apple object format (autodetect osx <= 10)
 195   --config-codesign=no     do not use codesign on apple to sign executables
 196   --dwarf=x                Use dwarf debug info instead of stabs (x=2..5)
 197
 198 Cross build options (experimental):
 199   --cpu=CPU                target CPU [$cpu]
 200   --targetos=...           target OS (Darwin,WIN32,Android/Termux) [$targetos]
 201   --cross-prefix=PREFIX    use PREFIX for compile tools [$cross_prefix]
 202 EOF
 203 exit 1
 204 }
 205
 206 default() # set variable unless already set
 207 {
 208     local v
 209     eval v=\"\$$1\"
 210     test -z "$v" && eval $1=\"$2\"
 211 }
 212
 213 default_conf() # add to confvars unless already present
 214 {
 215     local v=${1%=*}
 216     test "${confvars%$v*}" = "${confvars}" && confvars="$confvars $1"
 217 }
 218
 219 if test -z "$source_path" -o "$source_path" = "." ; then
 220   source_path=$(pwd)
 221   source_path_used="no"
 222 else
 223   source_path_used="yes"
 224 fi
 225
 226 # OS specific
 227 buildos=$(uname)
 228
 229 case $buildos in
 230   Windows_NT|MINGW*|MSYS*|CYGWIN*)
 231     buildos="WIN32"
 232   ;;
 233   Linux)
 234     if test "$(uname -o)" = "Android"; then
 235       buildos=Android
 236       if test -n "$TERMUX_VERSION"; then
 237         buildos=Termux
 238       fi
 239     fi
 240   ;;
 241 esac
 242
 243 if test "$mingw32" = "yes"; then
 244   default targetos WIN32
 245 else
 246   default targetos "$buildos"
 247 fi
 248
 249 cpu_sys=$(uname -m)
 250 default cpu "$cpu_sys"
 251 cpu_set="$cpu"
 252
 253 # check for crpss build
 254 if test "$cpu_set" != "$cpu_sys" \
 255   -o "$targetos" != "$buildos" \
 256   -o -n "$cross_prefix" ; then
 257   build_cross="yes"
 258   cc="${cross_prefix}${cc}"
 259   ar="${cross_prefix}${ar}"
 260 fi
 261
 262 case "$cpu" in
 263   x86|i386|i486|i586|i686|i86pc|BePC|i686-AT386)
 264     cpu="i386"
 265   ;;
 266   x86_64|amd64|x86-64)
 267     cpu="x86_64"
 268   ;;
 269   evbarm)
 270     case "`uname -p`" in
 271       aarch64|arm64)
 272         cpu="arm64"
 273         ;;
 274       earmv*)
 275         cpu="arm"
 276         ;;
 277     esac
 278   ;;
 279   aarch64|arm64|evbarm)
 280     cpu="arm64"
 281   ;;
 282   arm*)
 283     case "$cpu" in
 284       arm|armv4l)
 285         cpuver=4
 286       ;;
 287       armv5tel|armv5tejl)
 288         cpuver=5
 289       ;;
 290       armv6j|armv6l)
 291         cpuver=6
 292       ;;
 293       armv7|armv7a|armv7l)
 294         cpuver=7
 295       ;;
 296     esac
 297     cpu="arm"
 298   ;;
 299   alpha)
 300     cpu="alpha"
 301   ;;
 302   "Power Macintosh"|ppc|ppc64)
 303     cpu="ppc"
 304   ;;
 305   mips)
 306     cpu="mips"
 307   ;;
 308   s390)
 309     cpu="s390"
 310   ;;
 311   riscv64)
 312     cpu="riscv64"
 313   ;;
 314   *)
 315     echo "Unsupported CPU"
 316     exit 1
 317   ;;
 318 esac
 319
 320 case $targetos in
 321   Darwin)
 322     dwarf=4
 323     confvars="$confvars OSX"
 324     default_conf "codesign"
 325     DLLSUF=".dylib"
 326     if test -z "$build_cross"; then
 327       cc=`command -v cc`
 328       cc=`readlink $cc || echo clang`
 329       tcc_usrinclude="`xcrun --show-sdk-path`/usr/include"
 330       if test "${confvars%new_macho*}" = "${confvars}"; then
 331           # if new_macho was not specified and (known) ver <= 10, use old (=no)
 332           osxver=$(sw_vers -productVersion 2>/dev/null)  # X.Y.Z
 333           osxver=${osxver%%.*}  # major version (or empty on sw_vers error)
 334           [ "${osxver:-11}" -ge 11 ] || confvars="$confvars new_macho=no"
 335       fi
 336     fi
 337     # on OSX M1 with --cpu=x86_64, build a tcc to run under rosetta entirely
 338     if test "$cpu" = "x86_64" -a "$cpu_sys" = "arm64"; then
 339         CFLAGS="$CFLAGS -arch $cpu"
 340         LDFLAGS="$LDFLAGS -arch $cpu"
 341     fi
 342     ;;
 343   DragonFly|OpenBSD|FreeBSD|NetBSD)
 344     confvars="$confvars BSD ldl=no"
 345     ;;
 346   Android|Termux)
 347     if test "$targetos" = "Termux"; then
 348       targetos=Android
 349       default sysroot "/data/data/com.termux/files/usr"
 350     else
 351       default sysroot "/usr"
 352     fi
 353     default prefix "${sysroot}"
 354     confvars="$confvars Android new-dtags rpath=no"
 355     test "${cpu}" != "i386" && confvars="$confvars pie"
 356     default_conf "static=no"
 357     if test "${cpu}" = "arm"; then
 358       default triplet "arm-linux-androideabi"
 359       cpuver=7
 360     else
 361       default triplet "${cpu_set}-linux-android"
 362     fi
 363     test "${cpu%64}" != "${cpu}" && S="64" || S=""
 364     default tcc_sysincludepaths "{B}/include:{R}/include:{R}/include/${triplet}"
 365     default tcc_libpaths "{B}:{R}/lib:/system/lib${S}"
 366     default tcc_crtprefix "{R}/lib"
 367     default tcc_elfinterp "/system/bin/linker${S}"
 368     default tcc_switches "-Wl,-rpath=$sysroot/lib"
 369     ;;
 370   WIN32)
 371     mingw32="yes"
 372     confvars="$confvars WIN32"
 373     default prefix "C:/Program Files/tcc"
 374     default tccdir "${prefix}"
 375     default bindir "${tccdir}"
 376     default docdir "${tccdir}/doc"
 377     default libdir "${tccdir}/libtcc"
 378     test "$tccdir" = "$bindir" && tccdir_auto="yes"
 379     LIBSUF=".lib"
 380     EXESUF=".exe"
 381     DLLSUF=".dll"
 382     if test "$source_path_used" = "no"; then
 383       source_path="."
 384     fi
 385     ;;
 386   *)
 387     ;;
 388 esac
 389
 390 if test "$mingw32" = "no"; then
 391   default prefix       "/usr/local"
 392   default execprefix   "${prefix}"
 393   default libdir       "${execprefix}/lib"
 394   default bindir       "${execprefix}/bin"
 395   default tccdir       "${libdir}/tcc"
 396   default includedir   "${prefix}/include"
 397   default sharedir     "${prefix}/share"
 398   default docdir       "${sharedir}/doc"
 399   default mandir       "${sharedir}/man"
 400   default infodir      "${sharedir}/info"
 401 fi
 402
 403 if test x"$show_help" = "xyes" ; then
 404     show_help
 405 fi
 406
 407 if test -z "$build_cross"; then
 408   CONFTEST=./conftest$EXESUF
 409   if ! $cc -o $CONFTEST $source_path/conftest.c ; then
 410     echo "configure: error: '$cc' failed to compile conftest.c."
 411   else
 412     cc_name="$($CONFTEST compiler)"
 413     gcc_major="$($CONFTEST version)"
 414     gcc_minor="$($CONFTEST minor)"
 415     bigendian="$($CONFTEST bigendian)"
 416     _triplet="$($CONFTEST triplet)"
 417   fi
 418   if test "$mingw32" = "no" ; then
 419       if test -z "$triplet" -a -n "$_triplet"; then
 420         if test -f "/usr/lib/$_triplet/crti.o"; then
 421           triplet="$_triplet"
 422         fi
 423       fi
 424       if test -z "$triplet"; then
 425         if test $cpu = "x86_64" -o $cpu = "arm64" -o $cpu = "riscv64" ; then
 426           if test -f "/usr/lib64/crti.o" ; then
 427             tcc_lddir="lib64"
 428           fi
 429         fi
 430       fi
 431       if test "$suggest" = "yes"; then
 432         if test -f "/lib/ld-uClibc.so.0" ; then
 433           echo "Perhaps you want ./configure --config-uClibc"
 434         fi
 435         if test -f "/lib/ld-musl-$cpu.so.1"; then
 436           echo "Perhaps you want ./configure --config-musl"
 437         fi
 438       fi
 439   fi
 440 else
 441   # can only make guesses about compiler and target
 442   if test "${cc%tcc*}" != "$cc"; then
 443     cc_name="tcc"
 444   elif test "${cc%clang*}" != "$cc"; then
 445     cc_name="clang"
 446   fi
 447   case $cpu in
 448     ppc|mips|s390)  bigendian=yes;;
 449   esac
 450   case $targetos in
 451     Linux)
 452       default triplet "$cpu_set-linux-gnu"
 453   esac
 454 fi
 455
 456 if test "$bigendian" = "yes" ; then
 457   confvars="$confvars BIGENDIAN"
 458 fi
 459
 460 if test "$mingw32" = "yes" -a "$cc_name" = "gcc"; then
 461   # avoid mingw dependencies such as 'libgcc_s_dw2-1.dll'
 462   default LDFLAGS "-static"
 463 fi
 464
 465 if test "$cpu" = "arm"; then
 466   if test "${triplet%eabihf}" != "$triplet" ; then
 467     confvars="$confvars arm_eabihf arm_vfp"
 468   elif test "${triplet%eabi}" != "$triplet" ; then
 469     confvars="$confvars arm_eabi arm_vfp"
 470   elif test -z "$build_cross"; then
 471     if test "${_triplet%eabihf}" != "$_triplet" ; then
 472       confvars="$confvars arm_eabihf arm_vfp"
 473     elif test "${_triplet%eabi}" != "$_triplet" ; then
 474       confvars="$confvars arm_eabi arm_vfp"
 475     elif grep -s -q "^Features.* \(vfp\|iwmmxt\) " /proc/cpuinfo ; then
 476       confvars="$confvars arm_vfp"
 477     fi
 478   fi
 479 fi
 480
 481 if test -n "$dwarf"; then
 482   confvars="$confvars dwarf=$dwarf"
 483 fi
 484
 485 # a final configuration tuning
 486 if test "$cc_name" != "tcc"; then
 487   OPT1="-Wdeclaration-after-statement -fno-strict-aliasing"
 488   # we want -Wno- but gcc does not always reject unknown -Wno- options
 489   OPT2="-Wpointer-sign -Wsign-compare -Wunused-result -Wformat-truncation"
 490   OPT2="$OPT2 -Wstringop-truncation"
 491   if test "$cc_name" = "clang"; then
 492     OPT1="$OPT1 -fheinous-gnu-extensions"
 493     OPT2="$OPT2 -Wstring-plus-int -Wdeprecated-declarations"
 494   fi
 495   $cc $OPT1 $OPT2 -o a.out -c -xc - < /dev/null > cc_msg.txt 2>&1
 496   for o in $OPT1; do # enable these options
 497     if ! grep -q -- $o cc_msg.txt; then CFLAGS="$CFLAGS $o"; fi
 498   done
 499   for o in $OPT2; do # disable these options
 500     if ! grep -q -- $o cc_msg.txt; then CFLAGS="$CFLAGS -Wno-${o#-W*}"; fi
 501   done
 502   # cat cc_msg.txt
 503   # echo $CFLAGS
 504   rm -f cc_msg.txt a.out
 505 else # cc is tcc
 506   test "$ar_set" || ar="$cc -ar"
 507 fi
 508
 509 fcho() { if test -n "$2"; then echo "$1$2"; fi }
 510
 511 fcho "Binary directory    " "$bindir"
 512 fcho "TinyCC directory    " "$tccdir"
 513 fcho "Library directory   " "$libdir"
 514 fcho "Include directory   " "$includedir"
 515 fcho "Manual directory    " "$mandir"
 516 fcho "Info directory      " "$infodir"
 517 fcho "Doc directory       " "$docdir"
 518 fcho "Target root prefix  " "$sysroot"
 519 fcho "/usr/include dir    " "$tcc_usrinclude"
 520 echo "Source path         $source_path"
 521 echo "Build OS            $(uname -m -s)"
 522 echo "C compiler          $cc ($gcc_major.$gcc_minor)"
 523 echo "Target OS           $targetos"
 524 echo "CPU                 $cpu"
 525 fcho "Triplet             " "$triplet"
 526 fcho "Libs                " "$tcc_libpaths"
 527 fcho "Sysinclude          " "$tcc_sysincludepaths"
 528 fcho "Crt                 " "$tcc_crtprefix"
 529 fcho "Elfinterp           " "$tcc_elfinterp"
 530 fcho "Switches            " "$tcc_switches"
 531 fcho "Config              " "${confvars# }"
 532 echo "Creating config.mak and config.h"
 533
 534 cat >config.mak <<EOF
 535 # Automatically generated by configure - do not modify
 536 prefix=$prefix
 537 bindir=\$(DESTDIR)$bindir
 538 tccdir=\$(DESTDIR)$tccdir
 539 libdir=\$(DESTDIR)$libdir
 540 includedir=\$(DESTDIR)$includedir
 541 mandir=\$(DESTDIR)$mandir
 542 infodir=\$(DESTDIR)$infodir
 543 docdir=\$(DESTDIR)$docdir
 544 CC=$cc
 545 CC_NAME=$cc_name
 546 GCC_MAJOR=$gcc_major
 547 GCC_MINOR=$gcc_minor
 548 AR=$ar
 549 CFLAGS=$CFLAGS
 550 LDFLAGS=$LDFLAGS
 551 LIBSUF=$LIBSUF
 552 EXESUF=$EXESUF
 553 DLLSUF=$DLLSUF
 554 EOF
 555
 556 print_inc() {
 557   local v="$2"
 558   if test -n "$v"; then
 559     test "$3" = "num" || v="\"$v\""
 560     echo "#ifndef $1" >> $TMPH
 561     echo "# define $1 $v" >> $TMPH
 562     echo "#endif" >> $TMPH
 563   fi
 564 }
 565
 566 print_mak() {
 567   local v="$2"
 568   if test -n "$v"; then
 569     test "$3" = "num" || v="\"\\\"$v\\\"\""
 570     echo "NATIVE_DEFINES+=-D$1=$v" >> config.mak
 571   fi
 572 }
 573
 574 echo "/* Automatically generated by configure - do not modify */" > $TMPH
 575
 576 print_inc CONFIG_SYSROOT "$sysroot"
 577 test "$tccdir_auto" = "yes" || print_inc CONFIG_TCCDIR "$tccdir"
 578 print_inc DWARF_VERSION "$dwarf" num
 579 print_mak CONFIG_USR_INCLUDE "$tcc_usrinclude"
 580 print_mak CONFIG_TCC_SYSINCLUDEPATHS "$tcc_sysincludepaths"
 581 print_mak CONFIG_TCC_LIBPATHS "$tcc_libpaths"
 582 print_mak CONFIG_TCC_CRTPREFIX "$tcc_crtprefix"
 583 print_mak CONFIG_TCC_ELFINTERP "$tcc_elfinterp"
 584 print_mak CONFIG_TCC_SWITCHES "$tcc_switches"
 585 print_mak CONFIG_LDDIR "$tcc_lddir"
 586 print_mak CONFIG_TRIPLET "$triplet"
 587 print_mak TCC_CPU_VERSION "$cpuver" num
 588
 589 echo "ARCH=$cpu" >> config.mak
 590 echo "TARGETOS=$targetos" >> config.mak
 591 echo "BUILDOS=$buildos" >> config.mak
 592
 593 predefs="1"
 594 for v in $confvars ; do
 595   test "$v" = "predefs=no" && predefs=""
 596   if test "${v%=*}" = "$v"; then
 597     echo "CONFIG_$v=yes" >> config.mak
 598   else
 599     echo "CONFIG_$v" >> config.mak
 600   fi
 601 done
 602 print_inc CONFIG_TCC_PREDEFS "$predefs" num
 603
 604 version=`head $source_path/VERSION`
 605 echo "VERSION = $version" >> config.mak
 606 echo "#define TCC_VERSION \"$version\"" >> $TMPH
 607 echo "@set VERSION $version" > config.texi
 608
 609 if test "$source_path_used" = "yes" ; then
 610     case $source_path in
 611        /*) echo "TOPSRC=$source_path";;
 612         *) echo "TOPSRC=\$(TOP)/$source_path";;
 613      esac >>config.mak
 614 else
 615      echo 'TOPSRC=$(TOP)' >>config.mak
 616 fi
 617 cat >>$TMPH <<EOF
 618 #define GCC_MAJOR $gcc_major
 619 #define GCC_MINOR $gcc_minor
 620 #define CC_NAME CC_${cc_name}
 621 EOF
 622
 623 diff $TMPH config.h >/dev/null 2>&1
 624 if test $? -ne 0 ; then
 625     mv -f $TMPH config.h
 626 else
 627     echo "config.h is unchanged"
 628 fi
 629
 630 rm -f $TMPN* $CONFTEST
 631
 632 # ---------------------------------------------------------------------------
 633 # build tree in object directory if source path is different from current one
 634
 635 fn_makelink()
 636 {
 637     tgt=$1/$2
 638     case $2 in
 639     */*) dn=${2%/*}
 640          test -d $dn || mkdir -p $dn
 641          case $1 in
 642          /*) ;;
 643           *) while test $dn ; do
 644                 tgt=../$tgt; dn=${dn#${dn%%/*}}; dn=${dn#/}
 645              done
 646              ;;
 647          esac
 648          ;;
 649     esac
 650
 651     ln -sfn $tgt $2 || ( echo "ln failed. Using cp instead."; cp -f $1/$2 $2 )
 652 }
 653
 654 if test "$source_path_used" = "yes" ; then
 655   FILES="Makefile lib/Makefile tests/Makefile tests/tests2/Makefile tests/pp/Makefile"
 656   for f in $FILES ; do
 657     fn_makelink $source_path $f
 658   done
 659 fi
 660
 661 # ---------------------------------------------------------------------------