configure

   1 #!/bin/sh
   2 # Configure script for util-linux - aeb, 990205
   3 #
   4 # We need to find out the following things:
   5 #
   6 # Version of gcc
   7 #
   8 # Existence of header files:
   9 # H1. For fdisksunlabel.c: is there a <scsi/scsi.h>?
  10 # H2. For fdisk.c: is there a <linux/blkpg.h>?
  11 # H3. For kbd_rate.c: does <linux/kd.h> exist?
  12 # H4. For nls.h: do we have <locale.h>?
  13 # H5. For cal.c: do we have <langinfo.h>?
  14 # H6. For mkswap.c: do we have <sys/user.h> or <asm/page.h>?
  15 # H7. For nfsmount.c: do we have <rpcsvc/nfs_prot.h>?
  16 # H8. For nfsmount.h (nfsmount_xdr.c: int32_t): do we have <asm/types.h>?
  17 # H9. For raw.c: do we have <linux/raw.h>?
  18 #
  19 # Existence of functions:
  20 # F1. For nfsmount.c: is inet_aton() available?
  21 # F2. For mkswap.c: is fsync() available?
  22 # F3. For agetty.c: is getdomainname() available?
  23 # F4. For hwclock/kd.c: do we have nanosleep()?
  24 # F5. For mkswap.c: do we have personality()?
  25 # F6. For agetty.c: is updwtmp() available?
  26 # F7. For pg.c: are fseeko() and ftello() available?
  27 # F8. For fsck.cramfs.c: is lchown() available?
  28 #
  29 #  1. For sys-utils/cytune.c: do we need <linux/tqueue.h>?
  30 #  2. For cfdisk, setterm, more, ul: do we have ncurses? How installed?
  31 #  3. For more: do we have libtermcap?
  32 #  4. For chfn, chsh, login, newgrp, passwd: do we need -lcrypt?
  33 #  5. For sln: does static compilation work?
  34 #  6. For lib/nls.h: do we have <libintl.h> and gettext()?
  35 #  7. For xgettext: does it take the option --foreign-user?
  36 #  8. For err.c: do we have __progname?
  37 #  9. For script.c: do we have <pty.h> and openpty()?
  38 # 10. For lib/widechar.h: do we have wide character support?
  39 # 11. For pivot_root.c: does <linux/unistd.h> define __NR_pivot_root?
  40 # 12. For hwclock.c: does struct tm have a field tm_gmtoff?
  41 # 13. For nfsmount: does the output of rpcgen compile?
  42 # 14. For fsck.cramfs, mkfs.cramfs: do we have libz?
  43
  44 rm -f make_include defines.h
  45
  46 VERSION=`cat VERSION`
  47 echo
  48 echo configuring util-linux-$VERSION
  49 echo
  50 echo "VERSION=$VERSION" > make_include
  51 echo '#define UTIL_LINUX_VERSION "'$VERSION'"' > defines.h
  52 echo '#define util_linux_version "util-linux-'$VERSION'"' >> defines.h
  53 echo >> defines.h
  54
  55 CC=${CC-cc}
  56 CFLAGS=${CFLAGS-"-O"}
  57 LDFLAGS=${LDFLAGS-"-s"}
  58 echo CC=$CC >> make_include
  59 echo CFLAGS=$CFLAGS >> make_include
  60 echo LDFLAGS=$LDFLAGS >> make_include
  61
  62 DEFS=
  63 LIBS=
  64 compile='$CC $CFLAGS $DEFS conftest.c -o conftest $LIBS >/dev/null 2>&1'
  65 compile_with_warnings='$CC $CFLAGS $DEFS conftest.c -o conftest $LIBS 2>&1'
  66 static_compile='$CC -static $DEFS conftest.c -o conftest $LIBS >/dev/null 2>&1'
  67 eval COMPILE='"'$compile'"'
  68 export COMPILE
  69
  70 rm -f conftest.c conftest
  71
  72 #
  73 # Old gcc wants options like -m486, but gcc 3.0 says
  74 # `-m486' is deprecated. Use `-march=i486' or `-mcpu=i486' instead.
  75 #
  76 echo "
  77 int main(){ exit(0); }
  78 " > conftest.c
  79 gccout=`$CC $CFLAGS -m386 conftest.c -o conftest 2>&1 | grep "march="`
  80 if test -z "$gccout"; then
  81     echo "HAVE_OLD_GCC=yes" >> make_include
  82 fi
  83 rm -f conftest conftest.c
  84
  85 #
  86 # Find out about the existence of header files
  87 #
  88
  89 #
  90 # H1. For fdisk/fdisksunlabel.c: is <scsi/scsi.h> available?
  91 #     Some kernels have <scsi/scsi.h> that uses u_char
  92 #     But maybe there is already a typedef. Let us use a #define
  93 #
  94 echo "
  95 #define u_char  unsigned char
  96 #include <scsi/scsi.h>
  97 #undef u_char
  98 int main(){ exit(0); }
  99 " > conftest.c
 100 eval $compile
 101 if test -s conftest; then
 102         echo "#define HAVE_scsi_h" >> defines.h
 103         echo "You have <scsi/scsi.h>"
 104 else
 105         echo "You don't have <scsi/scsi.h>"
 106 fi
 107 rm -f conftest conftest.c
 108
 109 #
 110 # H2. For fdisk/fdisk.c: is <linux/blkpg.h> available?
 111 #
 112 if ./testincl "linux/blkpg.h"; then
 113         echo "#define HAVE_blkpg_h" >> defines.h
 114 fi
 115
 116 #
 117 # H3. Does <linux/kd.h> exist?
 118 #
 119 if ./testincl "linux/kd.h"; then
 120         echo "#define HAVE_kd_h" >> defines.h
 121 fi
 122
 123 #
 124 # H4. For lib/nls.h: do we have <locale.h>?
 125 #
 126 if ./testincl "locale.h"; then
 127         echo "#define HAVE_locale_h" >> defines.h
 128 fi
 129
 130 #
 131 # H5. For cal.c: do we have <langinfo.h>?
 132 #
 133 if ./testincl "langinfo.h"; then
 134         echo "#define HAVE_langinfo_h" >> defines.h
 135 fi
 136
 137 #
 138 # H6. For mkswap.c: do we have <sys/user.h> or <asm/page.h>?
 139 #
 140 if ./testincl "sys/user.h"; then
 141         echo "#define HAVE_sys_user_h" >> defines.h
 142 else if ./testincl "asm/page.h"; then
 143         echo "#define HAVE_asm_page_h" >> defines.h
 144 fi fi
 145
 146 #
 147 # H7. For nfsmount.c: do we have <rpcsvc/nfs_prot.h>?
 148 #
 149 if ./testincl "rpcsvc/nfs_prot.h"; then
 150         echo "#define HAVE_rpcsvc_nfs_prot_h" >> defines.h
 151 fi
 152
 153 #
 154 # H8. For nfsmount.h: do we have <asm/types.h>?
 155 #
 156 if ./testincl "asm/types.h"; then
 157         echo "#define HAVE_asm_types_h" >> defines.h
 158 fi
 159
 160 #
 161 # H9. For raw.c: do we have <linux/raw.h>?
 162 #
 163 if ./testincl "linux/raw.h"; then
 164         echo "HAVE_RAW_H=yes" >> make_include
 165 fi
 166
 167
 168 #
 169 # Find out about the existence of functions
 170 #
 171
 172 #
 173 # F1. For mount/nfsmount.c: is inet_aton() available?
 174 #
 175 echo "
 176 #include <sys/socket.h>
 177 #include <netinet/in.h>
 178 #include <arpa/inet.h>
 179 int main(int a, char **v){
 180   if (a == -1)  /* false */
 181         inet_aton((const char *) 0, (struct in_addr *) 0);
 182   exit(0);
 183 }
 184 " > conftest.c
 185 eval $compile
 186 if test -s conftest; then
 187         echo "#define HAVE_inet_aton" >> defines.h
 188         echo "You have inet_aton()"
 189 else
 190         echo "You don't have inet_aton()"
 191 fi
 192 rm -f conftest conftest.c
 193
 194 #
 195 # F2. For mkswap.c: is fsync() available?
 196 #
 197 echo "
 198 #include <unistd.h>
 199 int main(int a, char **v){
 200   if (a == -1)  /* false */
 201     fsync(0);
 202   exit(0);
 203 }
 204 " > conftest.c
 205 eval $compile
 206 if test -s conftest; then
 207         echo "#define HAVE_fsync" >> defines.h
 208         echo "You have fsync()"
 209 else
 210         echo "You don't have fsync()"
 211 fi
 212 rm -f conftest conftest.c
 213
 214 #
 215 # F3. For agetty.c: is getdomainname() available?
 216 #
 217 echo "
 218 #include <unistd.h>
 219 int main(int a, char **v){
 220   char buf[1];
 221   if (a == -1)  /* false */
 222     getdomainname(buf, sizeof buf);
 223   exit(0);
 224 }
 225 " > conftest.c
 226 eval $compile
 227 if test -s conftest; then
 228         echo "#define HAVE_getdomainname" >> defines.h
 229         echo "You have getdomainname()"
 230 else
 231         echo "You don't have getdomainname()"
 232 fi
 233 rm -f conftest conftest.c
 234
 235 #
 236 # F4. For hwclock/kd.c: do we have nanosleep?
 237 #
 238 echo "
 239 #include <time.h>
 240 int main () {
 241   struct timespec sleep = { 0, 1 };
 242   nanosleep( &sleep, NULL );
 243   exit(0);
 244 }
 245 " > conftest.c
 246 eval $compile
 247 if test -s conftest; then
 248         echo "#define HAVE_nanosleep" >> defines.h
 249         echo "You have nanosleep()"
 250 else
 251         echo "You don't have nanosleep()"
 252 fi
 253 rm -f conftest conftest.c
 254
 255 #
 256 # F5. For mkswap.c: do we have personality()?
 257 #
 258 echo "
 259 int main () {
 260   extern int personality(unsigned long);
 261   personality(0);
 262   exit(0);
 263 }
 264 " > conftest.c
 265 eval $compile
 266 if test -s conftest; then
 267         echo "#define HAVE_personality" >> defines.h
 268         echo "You have personality()"
 269 else
 270         echo "You don't have personality()"
 271 fi
 272 rm -f conftest conftest.c
 273
 274 #
 275 # F6. For agetty.c: is updwtmp() available?
 276 #
 277 echo '
 278 #include <string.h>
 279 #include <utmp.h>
 280 int main(int a, char **v){
 281   struct  utmp ut;
 282   memset (&ut, 0, sizeof(ut));
 283   if (a == -1)  /* false */
 284     updwtmp("/nowhere/wtmp", &ut);
 285   exit(0);
 286 }
 287 ' > conftest.c
 288 eval $compile
 289 if test -s conftest; then
 290         echo "#define HAVE_updwtmp" >> defines.h
 291         echo "You have updwtmp()"
 292 else
 293         echo "You don't have updwtmp()"
 294 fi
 295 rm -f conftest conftest.c
 296
 297 #
 298 # F7. For pg.c: are fseeko() and ftello() available?
 299 #
 300 echo '
 301 #include <stdio.h>
 302 int main(int a, char **v){
 303   fseeko(stdout, 0, 0);
 304   ftello(stdout);
 305   exit(0);
 306 }
 307 ' > conftest.c
 308 eval $compile
 309 if test -s conftest; then
 310         echo "#define HAVE_fseeko" >> defines.h
 311         echo "You have fseeko()"
 312 else
 313         echo "You don't have fseeko()"
 314 fi
 315 rm -f conftest conftest.c
 316
 317 #
 318 # F8. For fsck.cramfs.c: is lchown() available?
 319 #
 320 echo '
 321 #include <sys/types.h>
 322 #include <unistd.h>
 323 int main(int a, char **v){
 324   lchown("nowhere",0,0);
 325   exit(0);
 326 }
 327 ' > conftest.c
 328 gccout=`eval $compile_with_warnings | grep "lchown is not implemented"`
 329 if test -s conftest -a -z "$gccout"; then
 330         echo "#define HAVE_lchown" >> defines.h
 331         echo "You have lchown()"
 332 else
 333         echo "You don't have lchown()"
 334 fi
 335 rm -f conftest conftest.c
 336
 337 #
 338 # 1. cytune.c may need struct tq_struct
 339 #
 340 echo "
 341 #include <sys/types.h>
 342 #include <linux/cyclades.h>
 343 int main(){ exit(0); }
 344 " > conftest.c
 345 eval $compile
 346 if test -s conftest; then
 347         echo "You don't need <linux/tqueue.h>"
 348 else
 349         echo "#define NEED_tqueue_h" >> defines.h
 350         echo "You need <linux/tqueue.h>"
 351 fi
 352 rm -f conftest conftest.c
 353
 354 #
 355 # 2. How is [n]curses installed?
 356 #
 357 test_curses_h=0
 358 have_ncurses=1
 359 if ! ./testincl "term.h"; then
 360         have_ncurses=0
 361 elif ./testincl -q "ncurses/curses.h"; then
 362         echo "HAVE_NCURSES=yes" >> make_include
 363         echo "CURSESFLAGS=-I/usr/include/ncurses -DNCH=0" >> make_include
 364         echo "You have ncurses. Using <ncurses/curses.h>."
 365 elif ./testincl -q "ncurses.h"; then
 366         echo "HAVE_NCURSES=yes" >> make_include
 367         echo "CURSESFLAGS=-DNCH=1" >> make_include
 368         echo "You have ncurses. Using <ncurses.h>."
 369 elif [ -f /usr/local/include/ncurses.h ]; then
 370         echo "HAVE_NCURSES=yes" >> make_include
 371         echo "CURSESFLAGS=-I/usr/local/include -DNCH=1" >> make_include
 372         echo "You have ncurses. Using /usr/local/include/ncurses.h."
 373 elif ./testincl -q "curses.h"; then
 374         test_curses_h=1
 375 else
 376         have_ncurses=0
 377 fi
 378 #
 379 # If we found a curses.h, test whether it is ncurses
 380 # (It should define __NCURSES_H and NCURSES_VERSION and NCURSES_CONST ...)
 381 #
 382 if [ $test_curses_h = 1 ]; then
 383   echo "
 384   #include <curses.h>
 385   int main(){ char *c = NCURSES_VERSION; exit(0); }
 386   " > conftest.c
 387   eval $compile
 388   if test -s conftest; then
 389         echo "HAVE_NCURSES=yes" >> make_include
 390         echo "CURSESFLAGS=-DNCH=0" >> make_include
 391         echo "You have ncurses. Using <curses.h>."
 392   else
 393         have_ncurses=0
 394   fi
 395   rm -f conftest conftest.c
 396 fi
 397
 398 if [ $have_ncurses = 0 ]; then
 399         echo "HAVE_NCURSES=no" >> make_include
 400         echo "You don't have ncurses - I will not make ul and setterm."
 401 else
 402         echo "LIBCURSES=-lncurses" >> make_include
 403 fi
 404
 405 #
 406 # 3. Some systems have /usr/lib/termcap.so -> /usr/lib/termcap.so.2
 407 # where however the latter file does not exist. When termcap does
 408 # not exist, we can try to compile more with curses instead.
 409 #
 410 echo '
 411 #include <termcap.h>
 412 int main(){ exit(0); tgetnum("li"); }
 413 ' > conftest.c
 414 LIBS=-ltermcap
 415 eval $compile
 416 LIBS=
 417 if test -s conftest; then
 418         echo "#define HAVE_termcap" >> defines.h
 419         echo "HAVE_TERMCAP=yes" >> make_include
 420         echo "LIBTERMCAP=-ltermcap" >> make_include
 421         echo "You have termcap"
 422 else
 423         echo "HAVE_TERMCAP=no" >> make_include
 424         if [ $have_ncurses = 0 ]; then
 425                 echo "You don't have termcap - I will not make more."
 426         else
 427                 echo "You don't have termcap"
 428         fi
 429 fi
 430 rm -f conftest conftest.c
 431
 432 #
 433 # 4. Do we need -lcrypt?
 434 #
 435 echo '
 436 #define _XOPEN_SOURCE
 437 #include <unistd.h>
 438 int main(){ char *c = crypt("abc","pw"); exit(0); }
 439 ' > conftest.c
 440 eval $compile
 441 if test -s conftest; then
 442         echo "NEED_LIBCRYPT=no" >> make_include
 443         echo "You don't need -lcrypt"
 444 else
 445         echo "NEED_LIBCRYPT=yes" >> make_include
 446         echo "You need -lcrypt"
 447 fi
 448 rm -f conftest conftest.c
 449
 450 #
 451 # 5. Does static compilation work?
 452 #
 453 echo "
 454 int main(){ return 0; }
 455 " > conftest.c
 456 eval $static_compile
 457 if test -s conftest; then
 458         : OK, nothing special
 459 else
 460         echo "CAN_DO_STATIC=no" >> make_include
 461         echo "Strange... Static compilation fails here."
 462 fi
 463 rm -f conftest.c conftest
 464
 465 #
 466 # 6. For lib/nls.h: do we have <libintl.h> and gettext() ?
 467 #
 468 echo '
 469 #include <libintl.h>
 470 int main(int a, char **v){
 471   if (a == -1)  /* false */
 472         gettext("There is no gettext man page\n");
 473   exit(0);
 474 }
 475 ' > conftest.c
 476 eval $compile
 477 if test -s conftest; then
 478         echo '#define HAVE_libintl_h' >> defines.h
 479         echo "You have <libintl.h> and gettext()"
 480         echo '#define MAY_ENABLE_NLS' >> defines.h
 481         MAY_ENABLE_NLS=yes
 482 else
 483         echo "You don't have native language support"
 484         MAY_ENABLE_NLS=no
 485 fi
 486 rm -f conftest conftest.c
 487
 488
 489 #
 490 # 7. Does xgettext exist and take the option --foreign-user?
 491 #
 492 # We use the bash builtin "type" here.
 493 # I don't see an easy way to avoid it.
 494 # Many Linux systems do not have "which". Maybe "env" can be used.
 495 # Writing /usr/bin/xgettext is no good: one may have xgettext elsewhere.
 496 #
 497 if (test $MAY_ENABLE_NLS = yes && type xgettext > /dev/null 2>&1); then
 498         msg=`xgettext --foreign-user 2>&1 | grep unrecognized`
 499         if test -n "$msg"; then
 500                 echo "FOREIGN = " >> make_include
 501         else
 502                 echo "FOREIGN = --foreign-user" >> make_include
 503         fi
 504         echo "HAVE_XGETTEXT=yes" >> make_include
 505 else
 506         echo "HAVE_XGETTEXT=no" >> make_include
 507 fi
 508
 509
 510 #
 511 # 8. For err.c: do we have __progname?
 512 # [make sure gcc -O does not optimize the access away]
 513 #
 514 echo "
 515 #include <stdio.h>
 516 extern char *__progname;
 517 int main(){ printf(__progname); exit(0); }
 518 " > conftest.c
 519 eval $compile
 520 if test -s conftest; then
 521         echo "#define HAVE_progname" >> defines.h
 522         echo "You have __progname"
 523 else
 524         echo "You don't have __progname"
 525 fi
 526 rm -f conftest conftest.c
 527
 528 #
 529 # 9. For script.c: do we have <pty.h> and openpty()?
 530 #
 531 echo "
 532 #include <pty.h>
 533 int main(){ exit(0); openpty(0, 0, 0, 0, 0); }
 534 " > conftest.c
 535 LIBS=-lutil
 536 eval $compile
 537 LIBS=
 538 if test -s conftest; then
 539         echo "HAVE_OPENPTY=yes" >> make_include
 540         echo "#define HAVE_openpty" >> defines.h
 541         echo "You have <pty.h> and openpty()"
 542 else
 543         echo "You don't have <pty.h> and openpty()"
 544 fi
 545 rm -f conftest conftest.c
 546
 547 #
 548 # 10. For lib/widechar.h: do we have wide character support?
 549 # [Do we have the headers <wchar.h>, <wctype.h>, the types wchar_t, wint_t
 550 # and the fgetwc, fputwc, WEOF functions/macros?]
 551 #
 552 echo "
 553 #include <wchar.h>
 554 #include <wctype.h>
 555 #include <stdio.h>
 556 int main () {
 557   wchar_t wc;
 558   wint_t w;
 559   w = fgetwc(stdin);
 560   if (w == WEOF) exit(1);
 561   wc = w;
 562   fputwc(wc,stdout);
 563   exit(0);
 564 }
 565 " > conftest.c
 566 eval $compile
 567 if test -s conftest && ./conftest < conftest.c > /dev/null 2>/dev/null; then
 568         echo "#define ENABLE_WIDECHAR" >> defines.h
 569         echo "You have wide character support"
 570 else
 571         echo "You don't have wide character support"
 572 fi
 573 rm -f conftest conftest.c
 574
 575 #
 576 # 11. For pivot_root.c: does <linux/unistd.h> define __NR_pivot_root?
 577 #
 578 echo "
 579 #include <linux/unistd.h>
 580 int main(void)
 581 {
 582     return __NR_pivot_root;
 583 }
 584 " >conftest.c
 585 eval $compile
 586 if test -s conftest; then
 587         echo "HAVE_PIVOT_ROOT=yes" >> make_include
 588         echo "You have __NR_pivot_root"
 589 else
 590         echo "You don't have __NR_pivot_root"
 591 fi
 592 rm -f conftest conftest.c
 593
 594 #
 595 # 12. For hwclock.c: does struct tm have a field tm_gmtoff?
 596 #
 597 echo "
 598 #include <time.h>
 599 #include <unistd.h>
 600 int main(int a, char **v)
 601 {
 602     struct tm *tm = localtime(0);
 603     if (a == -1)  /* false */
 604         sleep(tm->tm_gmtoff);
 605     exit(0);
 606 }
 607 " >conftest.c
 608 eval $compile
 609 if test -s conftest; then
 610         echo "#define HAVE_tm_gmtoff" >> defines.h
 611         echo "You have a tm_gmtoff field in struct tm"
 612 else
 613         echo "You don't have a tm_gmtoff field in struct tm"
 614 fi
 615 rm -f conftest conftest.c
 616
 617 #
 618 # 13. For nfsmount: does the output of rpcgen compile?
 619 #
 620 # On some systems the output of rpcgen compiles with warnings
 621 # Here we conclude "Your rpcgen output does not compile"
 622 # and use pregenerated files. If one wishes to use rpcgen anyway,
 623 # just add the line "HAVE_GOOD_RPC=yes" to make_include.
 624 #
 625 rm -f conftest conftestx.c conftestl.c conftest.h conftest.x
 626 rm -f conftestx.o conftestl.o
 627 echo "
 628 #ifdef RPC_CLNT
 629 %#include <string.h>            /* for memset() */
 630 #endif
 631 %#include <asm/types.h>
 632 typedef opaque fhandle[1];
 633 union fhstatus switch (unsigned fhs_status) {
 634 case 0:
 635         fhandle fhs_fhandle;
 636 default:
 637         void;
 638 };
 639 typedef string dirpath<1024>;
 640 struct ppathcnf {
 641     short   pc_mask[2];
 642 };
 643
 644 program MOUNTPROG {
 645     version MOUNTVERS {
 646         fhstatus
 647         MOUNTPROC_MNT(dirpath) = 1;
 648     } = 2;
 649 } = 100005;
 650 " > conftest.x
 651 if rpcgen -h -o conftest.h conftest.x 2> conferrs && \
 652    rpcgen -c -o conftestx.c conftest.x 2>> conferrs && \
 653    rpcgen -l -o conftestl.c conftest.x 2>> conferrs && \
 654    cc -c conftestx.c 2>> conferrs && cc -c conftestl.c 2>> conferrs && \
 655    test ! -s conferrs
 656 then
 657         echo "HAVE_GOOD_RPC=yes" >> make_include
 658         echo "Your rpcgen seems to work"
 659 else
 660         echo "Your rpcgen output does not compile - using pregenerated code"
 661 fi
 662 rm -f conftest conftestx.c conftestl.c conftest.h conftest.x conferrs
 663 rm -f conftestx.o conftestl.o
 664
 665 #
 666 # 14. For fsck.cramfs, mkfs.cramfs: do we have libz?
 667 #
 668 echo '
 669 #include <zlib.h>
 670 int main(){ exit(0); crc32(0, 0, 0); }
 671 ' > conftest.c
 672 LIBS=-lz
 673 eval $compile
 674 LIBS=
 675 if test -s conftest; then
 676         echo "HAVE_ZLIB=yes" >> make_include
 677         echo "You have zlib"
 678 else
 679         echo "HAVE_ZLIB=no" >> make_include
 680         echo "You don't have zlib"
 681 fi
 682 rm -f conftest conftest.c
 683