mk-conf.sh

   1 #!/bin/sh -
   2 #@ Please see `INSTALL' and `conf.rc' instead.
   3
   4 LC_ALL=C
   5 export LC_ALL
   6
   7 # Predefined CONFIG= urations take precedence over anything else
   8 if [ -n "${CONFIG}" ]; then
   9    case ${CONFIG} in
  10    MINIMAL)
  11       WANT_SOCKETS=0
  12       WANT_IDNA=0
  13       WANT_READLINE=0 WANT_EDITLINE=0 WANT_NCL=0
  14       WANT_REGEX=0
  15       WANT_SPAM=0
  16       WANT_DOCSTRINGS=0
  17       WANT_QUOTE_FOLD=0
  18       WANT_COLOUR=0
  19       ;;
  20    MEDIUM)
  21       WANT_SOCKETS=0
  22       WANT_IDNA=0
  23       WANT_READLINE=0 WANT_EDITLINE=0
  24       WANT_REGEX=0
  25       WANT_SPAM=0
  26       WANT_QUOTE_FOLD=0
  27       WANT_COLOUR=0
  28       ;;
  29    NETSEND)
  30       WANT_IMAP=0
  31       WANT_POP3=0
  32       WANT_READLINE=0 WANT_EDITLINE=0
  33       WANT_REGEX=0
  34       WANT_SPAM=0
  35       WANT_QUOTE_FOLD=0
  36       WANT_COLOUR=0
  37       ;;
  38    *)
  39       echo >&2 "Unknown CONFIG= setting: ${CONFIG}"
  40       echo >&2 'Possible values: MINIMAL, MEDIUM, NETSEND'
  41       exit 1
  42    esac
  43 fi
  44
  45 # Inter-relationships
  46 option_update() {
  47    if nwantfeat SOCKETS; then
  48       WANT_IPV6=0 WANT_SSL=0
  49       WANT_IMAP=0 WANT_GSSAPI=0 WANT_POP3=0 WANT_SMTP=0
  50    fi
  51    if nwantfeat IMAP && nwantfeat POP3 && nwantfeat SMTP; then
  52       WANT_SOCKETS=0 WANT_IPV6=0 WANT_SSL=0
  53    fi
  54    if nwantfeat IMAP; then
  55       WANT_GSSAPI=0
  56    fi
  57    # If we don't need MD5 except for producing boundary and message-id strings,
  58    # leave it off, plain old srand(3) should be enough for that purpose.
  59    if nwantfeat SOCKETS; then
  60       WANT_MD5=0
  61    fi
  62    if wantfeat DEBUG; then
  63       WANT_NOALLOCA=1
  64    fi
  65 }
  66
  67 # Check out compiler ($CC) and -flags ($CFLAGS)
  68 compiler_flags() {
  69    i=`uname -s`
  70    _CFLAGS=
  71
  72    # $CC is overwritten when empty or a default "cc", even without WANT_AUTOCC
  73    if [ -z "${CC}" ] || [ "${CC}" = cc ]; then
  74       _CFLAGS=
  75       if { CC="`command -v clang`"; }; then
  76          :
  77       elif { CC="`command -v gcc`"; }; then
  78          :
  79       elif { CC="`command -v c89`"; }; then
  80          [ "${i}" = UnixWare ] && _CFLAGS='-v -O'
  81       elif { CC="`command -v c99`"; }; then
  82          :
  83       else
  84          echo >&2 'ERROR'
  85          echo >&2 ' I cannot find a compiler!'
  86          echo >&2 ' Neither of clang(1), gcc(1), c89(1) and c99(1).'
  87          echo >&2 ' Please set the CC environment variable, maybe CFLAGS also.'
  88          exit 1
  89       fi
  90    fi
  91    export CC
  92
  93    ccver=`${CC} --version 2>/dev/null`
  94    stackprot=no
  95    if { i=$ccver; echo "${i}"; } | ${grep} -q -i -e gcc -e clang; then
  96    #if echo "${i}" | ${grep} -q -i -e gcc -e 'clang version 1'; then
  97       stackprot=yes
  98       _CFLAGS='-std=c89 -O2'
  99       _CFLAGS="${_CFLAGS} -Wall -Wextra -pedantic"
 100       _CFLAGS="${_CFLAGS} -fno-unwind-tables -fno-asynchronous-unwind-tables"
 101       _CFLAGS="${_CFLAGS} -fstrict-aliasing"
 102       _CFLAGS="${_CFLAGS} -Wbad-function-cast -Wcast-align -Wcast-qual"
 103       _CFLAGS="${_CFLAGS} -Winit-self -Wshadow -Wunused -Wwrite-strings"
 104       if { i=$ccver; echo "${i}"; } | ${grep} -q -e 'clang version 1'; then
 105          :
 106       else
 107          _CFLAGS="${_CFLAGS} -fstrict-overflow -Wstrict-overflow=5"
 108          if wantfeat AMALGAMATION && nwantfeat DEBUG; then
 109             _CFLAGS="${_CFLAGS} -Wno-unused-function"
 110          fi
 111          if { i=$ccver; echo "${i}"; } | ${grep} -q -i -e clang; then
 112             _CFLAGS="${_CFLAGS} -Wno-unused-result" # TODO handle the right way
 113          fi
 114       fi
 115       _CFLAGS="${_CFLAGS} -Wno-long-long" # ISO C89 has no 'long long'...
 116 #   elif { i=$ccver; echo "${i}"; } | ${grep} -q -i -e clang; then
 117 #      stackprot=yes
 118 #      _CFLAGS='-std=c89 -O3 -g -Weverything -Wno-long-long'
 119    elif [ -z "${_CFLAGS}" ]; then
 120       _CFLAGS=-O1
 121    fi
 122
 123    if nwantfeat DEBUG; then
 124       _CFLAGS="${_CFLAGS} -DNDEBUG"
 125    else
 126       _CFLAGS="${_CFLAGS} -g";
 127       if [ "${stackprot}" = yes ]; then
 128          _CFLAGS="${_CFLAGS} -fstack-protector-all "
 129             _CFLAGS="${_CFLAGS} -Wstack-protector -D_FORTIFY_SOURCE=2"
 130       fi
 131    fi
 132    _CFLAGS="${_CFLAGS} ${ADDCFLAGS}"
 133    _LDFLAGS="${_LDFLAGS} ${ADDLDFLAGS}" # XXX -Wl,--sort-common,[-O1]
 134    export _CFLAGS _LDFLAGS
 135
 136    # $CFLAGS and $LDFLAGS are only overwritten if explicitly wanted
 137    if wantfeat AUTOCC; then
 138       CFLAGS=$_CFLAGS
 139       LDFLAGS=$_LDFLAGS
 140       export CFLAGS LDFLAGS
 141    fi
 142 }
 143
 144 ##  --  >8  --  8<  --  ##
 145
 146 ## Notes:
 147 ## - Heirloom sh(1) (and same origin) have problems with ': >' redirection,
 148 ##   so use "printf '' >" instead
 149 ## - Heirloom sh(1) and maybe more execute loops with redirection in a subshell
 150 ##   (but don't export eval's from within), therefore we need to (re)include
 151 ##   variable assignments at toplevel instead (via reading temporary files)
 152
 153 ## First of all, create new configuration and check wether it changed ##
 154
 155 conf=./conf.rc
 156 lst=./config.lst
 157 h=./config.h
 158 mk=./mk.mk
 159
 160 newlst=./config.lst-new
 161 newmk=./config.mk-new
 162 newh=./config.h-new
 163 tmp0=___tmp
 164 tmp=./${tmp0}1$$
 165
 166 # We need some standard utilities
 167 unset -f command
 168 check_tool() {
 169    n=$1 i=$2 opt=${3:-0}
 170    if type "${i}" >/dev/null 2>&1; then
 171       eval ${n}=${i}
 172       return 1
 173    fi
 174    if [ ${opt} -eq 0 ]; then
 175       echo >&2 "ERROR: no trace of the utility \`${n}'"
 176       exit 1
 177    fi
 178    return 0
 179 }
 180
 181 # Check those tools right now that we need before including ${conf}
 182 check_tool rm "${rm:-`command -pv rm`}"
 183 check_tool sed "${sed:-`command -pv sed`}"
 184
 185 # Only incorporate what wasn't overwritten from command line / CONFIG
 186 trap "${rm} -f ${tmp}; exit" 1 2 15
 187 trap "${rm} -f ${tmp}" 0
 188 ${rm} -f ${tmp}
 189
 190 < ${conf} ${sed} -e '/^[ \t]*#/d' -e '/^$/d' -e 's/[ \t]*$//' |
 191 while read line; do
 192    i=`echo ${line} | ${sed} -e 's/=.*$//'`
 193    eval j=\$${i} jx=\${${i}+x}
 194    if [ -n "${j}" ] || [ "${jx}" = x ]; then
 195       line="${i}=\"${j}\""
 196    fi
 197    echo ${line}
 198 done > ${tmp}
 199 . ./${tmp}
 200
 201 check_tool awk "${awk:-`command -pv awk`}"
 202 check_tool cat "${cat:-`command -pv cat`}"
 203 check_tool chmod "${chmod:-`command -pv chmod`}"
 204 check_tool cp "${cp:-`command -pv cp`}"
 205 check_tool cmp "${cmp:-`command -pv cmp`}"
 206 check_tool grep "${grep:-`command -pv grep`}"
 207 check_tool mkdir "${mkdir:-`command -pv mkdir`}"
 208 check_tool mv "${mv:-`command -pv mv`}"
 209 # rm(1), sed(1) above
 210 check_tool tee "${tee:-`command -pv tee`}"
 211
 212 check_tool make "${MAKE:-`command -pv make`}"
 213 check_tool strip "${STRIP:-`command -pv strip`}" 1
 214 HAVE_STRIP=${?}
 215
 216 wantfeat() {
 217    eval i=\$WANT_${1}
 218    [ "${i}" = "1" ]
 219 }
 220 nwantfeat() {
 221    eval i=\$WANT_${1}
 222    [ "${i}" != "1" ]
 223 }
 224
 225 option_update
 226
 227 # (No function since some shells loose non-exported variables in traps)
 228 trap "${rm} -f ${tmp} ${newlst} ${newmk} ${newh}; exit" 1 2 15
 229 trap "${rm} -f ${tmp} ${newlst} ${newmk} ${newh}" 0
 230 ${rm} -f ${newlst} ${newmk} ${newh}
 231
 232 # (Could: use FD redirection, add eval(1) and don't re-'. ./${newlst}')
 233 while read line; do
 234    i=`echo ${line} | ${sed} -e 's/=.*$//'`
 235    eval j=\$${i}
 236    if [ -z "${j}" ] || [ "${j}" = 0 ]; then
 237       printf "/*#define ${i}*/\n" >> ${newh}
 238    elif [ "${j}" = 1 ]; then
 239       printf "#define ${i}\n" >> ${newh}
 240    else
 241       printf "#define ${i} \"${j}\"\n" >> ${newh}
 242    fi
 243    printf "${i} = ${j}\n" >> ${newmk}
 244    printf "${i}=\"${j}\"\n"
 245 done < ${tmp} > ${newlst}
 246 . ./${newlst}
 247
 248 printf "#define UAGENT \"${SID}${NAIL}\"\n" >> ${newh}
 249 printf "UAGENT = ${SID}${NAIL}\n" >> ${newmk}
 250
 251 compiler_flags
 252
 253 printf "CC = ${CC}\n" >> ${newmk}
 254 printf "_CFLAGS = ${_CFLAGS}\nCFLAGS = ${CFLAGS}\n" >> ${newmk}
 255 printf "_LDFLAGS = ${_LDFLAGS}\nLDFLAGS = ${LDFLAGS}\n" >> ${newmk}
 256 printf "AWK = ${awk}\nCMP = ${cmp}\nCHMOD = ${chmod}\nCP = ${cp}\n" >> ${newmk}
 257 printf "MKDIR = ${mkdir}\nRM = ${rm}\nSED = ${sed}\n" >> ${newmk}
 258 printf "STRIP = ${strip}\nHAVE_STRIP = ${HAVE_STRIP}\n" >> ${newmk}
 259 # (We include the cc(1)/ld(1) environment only for update detection..)
 260 printf "CC=\"${CC}\"\n" >> ${newlst}
 261 printf "_CFLAGS=\"${_CFLAGS}\"\nCFLAGS=\"${CFLAGS}\"\n" >> ${newlst}
 262 printf "_LDFLAGS=\"${_LDFLAGS}\"\nLDFLAGS=\"${LDFLAGS}\"\n" >> ${newlst}
 263 printf "AWK=${awk}\nCMP=${cmp}\nCHMOD=${chmod}\nCP=${cp}\n" >> ${newlst}
 264 printf "MKDIR=${mkdir}\nRM=${rm}\nSED=${sed}\n" >> ${newlst}
 265 printf "STRIP=${strip}\nHAVE_STRIP=${HAVE_STRIP}\n" >> ${newlst}
 266
 267 if [ -f ${lst} ] && ${cmp} ${newlst} ${lst} >/dev/null 2>&1; then
 268    exit 0
 269 fi
 270 [ -f ${lst} ] && echo 'configuration updated..' || echo 'shiny configuration..'
 271
 272 ${mv} -f ${newlst} ${lst}
 273 ${mv} -f ${newh} ${h}
 274 ${mv} -f ${newmk} ${mk}
 275
 276 ## Compile and link checking ##
 277
 278 tmp2=./${tmp0}2$$
 279 tmp3=./${tmp0}3$$
 280 log=./config.log
 281 lib=./config.lib
 282 inc=./config.inc
 283 src=./config.c
 284 makefile=./config.mk
 285
 286 # (No function since some shells loose non-exported variables in traps)
 287 trap "${rm} -f ${lst} ${h} ${mk} ${lib} ${inc} ${src} ${makefile}; exit" 1 2 15
 288 trap "${rm} -rf ${tmp0}.* ${tmp0}* ${makefile}" 0
 289
 290 exec 5>&2 > ${log} 2>&1
 291 printf '' > ${lib}
 292 printf '' > ${inc}
 293 # ${src} is only created if WANT_AMALGAMATION
 294 ${rm} -f ${src}
 295 ${cat} > ${makefile} << \!
 296 .SUFFIXES: .o .c .x .y
 297 .c.o:
 298         $(CC) $(XINCS) -c $<
 299 .c.x:
 300         $(CC) $(XINCS) -E $< >$@
 301 .c:
 302         $(CC) $(XINCS) -o $@ $< $(XLIBS)
 303 .y: ;
 304 !
 305
 306 msg() {
 307    fmt=$1
 308
 309    shift
 310    printf "*** ${fmt}\\n" "${@}"
 311    printf "${fmt}" "${@}" >&5
 312 }
 313
 314 _check_preface() {
 315    variable=$1 topic=$2 define=$3
 316
 317    echo '**********'
 318    msg "checking ${topic} ... "
 319    echo "/* checked ${topic} */" >> ${h}
 320    ${rm} -f ${tmp} ${tmp}.o
 321    echo '*** test program is'
 322    ${tee} ${tmp}.c
 323    #echo '*** the preprocessor generates'
 324    #${make} -f ${makefile} ${tmp}.x
 325    #${cat} ${tmp}.x
 326    echo '*** results are'
 327 }
 328
 329 compile_check() {
 330    variable=$1 topic=$2 define=$3
 331
 332    _check_preface "${variable}" "${topic}" "${define}"
 333
 334    if ${make} -f ${makefile} XINCS="${INCS}" ./${tmp}.o &&
 335          [ -f ./${tmp}.o ]; then
 336       msg "yes\\n"
 337       echo "${define}" >> ${h}
 338       eval have_${variable}=yes
 339       return 0
 340    else
 341       echo "/* ${define} */" >> ${h}
 342       msg "no\\n"
 343       eval unset have_${variable}
 344       return 1
 345    fi
 346 }
 347
 348 _link_mayrun() {
 349    run=$1 variable=$2 topic=$3 define=$4 libs=$5 incs=$6
 350
 351    _check_preface "${variable}" "${topic}" "${define}"
 352
 353    if ${make} -f ${makefile} XINCS="${INCS} ${incs}" \
 354             XLIBS="${LIBS} ${libs}" ./${tmp} &&
 355          [ -f ./${tmp} ] &&
 356          { [ ${run} -eq 0 ] || ./${tmp}; }; then
 357       echo "*** adding INCS<${incs}> LIBS<${libs}>"
 358       msg "yes\\n"
 359       echo "${define}" >> ${h}
 360       LIBS="${LIBS} ${libs}"
 361       echo "${libs}" >> ${lib}
 362       INCS="${INCS} ${incs}"
 363       echo "${incs}" >> ${inc}
 364       eval have_${variable}=yes
 365       return 0
 366    else
 367       msg "no\\n"
 368       echo "/* ${define} */" >> ${h}
 369       eval unset have_${variable}
 370       return 1
 371    fi
 372 }
 373
 374 link_check() {
 375    _link_mayrun 0 "${1}" "${2}" "${3}" "${4}" "${5}"
 376 }
 377
 378 run_check() {
 379    _link_mayrun 1 "${1}" "${2}" "${3}" "${4}" "${5}"
 380 }
 381
 382 # Build a basic set of INCS and LIBS according to user environment.
 383 # On pkgsrc(7) systems automatically add /usr/pkg/*
 384 if [ -n "${C_INCLUDE_PATH}" ]; then
 385    i=${IFS}
 386    IFS=:
 387    set -- ${C_INCLUDE_PATH}
 388    IFS=${i}
 389    # for i; do -- new in POSIX Issue 7 + TC1
 390    for i
 391    do
 392       [ "${i}" = '/usr/pkg/include' ] && continue
 393       INCS="${INCS} -I${i}"
 394    done
 395 fi
 396 [ -d /usr/pkg/include ] && INCS="${INCS} -I/usr/pkg/include"
 397 echo "${INCS}" >> ${inc}
 398
 399 if [ -n "${LD_LIBRARY_PATH}" ]; then
 400    i=${IFS}
 401    IFS=:
 402    set -- ${LD_LIBRARY_PATH}
 403    IFS=${i}
 404    # for i; do -- new in POSIX Issue 7 + TC1
 405    for i
 406    do
 407       [ "${i}" = '/usr/pkg/lib' ] && continue
 408       LIBS="${LIBS} -L${i}"
 409    done
 410 fi
 411 [ -d /usr/pkg/lib ] && LIBS="${LIBS} -L/usr/pkg/lib"
 412 echo "${LIBS}" >> ${lib}
 413
 414 ##
 415
 416 # Better set _GNU_SOURCE (if we are on Linux only?); 'surprised it did without
 417 echo '#define _GNU_SOURCE' >> ${h}
 418
 419 link_check hello 'if a hello world program can be built' << \! || {\
 420    echo >&5 'This oooops is most certainly not related to me.';\
 421    echo >&5 "Read the file ${log} and check your compiler environment.";\
 422    ${rm} -f ${lst} ${h} ${mk};\
 423    exit 1;\
 424 }
 425 #include <stdio.h>
 426
 427 int main(int argc, char *argv[])
 428 {
 429    (void)argc;
 430    (void)argv;
 431    puts("hello world");
 432    return 0;
 433 }
 434 !
 435
 436 link_check termios 'for termios.h and tc*() family' << \! || {\
 437    echo >&5 'We require termios.h and the tc*() family of functions.';\
 438    echo >&5 "That much Unix we indulge ourselfs.";\
 439    ${rm} -f ${lst} ${h} ${mk};\
 440    exit 1;\
 441 }
 442 #include <termios.h>
 443 int main(void)
 444 {
 445    struct termios tios;
 446    tcgetattr(0, &tios);
 447    tcsetattr(0, TCSADRAIN | TCSAFLUSH, &tios);
 448    return 0;
 449 }
 450 !
 451
 452 link_check snprintf 'for snprintf()' '#define HAVE_SNPRINTF' << \!
 453 #include <stdio.h>
 454 int main(void)
 455 {
 456    char b[20];
 457    snprintf(b, sizeof b, "%s", "string");
 458    return 0;
 459 }
 460 !
 461
 462 link_check putc_unlocked 'for putc_unlocked()' '#define HAVE_PUTC_UNLOCKED' <<\!
 463 #include <stdio.h>
 464 int main(void)
 465 {
 466    putc_unlocked('@', stdout);
 467    return 0;
 468 }
 469 !
 470
 471 link_check fchdir 'for fchdir()' '#define HAVE_FCHDIR' << \!
 472 #include <unistd.h>
 473 int main(void)
 474 {
 475    fchdir(0);
 476    return 0;
 477 }
 478 !
 479
 480 link_check mmap 'for mmap()' '#define HAVE_MMAP' << \!
 481 #include <sys/types.h>
 482 #include <sys/mman.h>
 483 int main(void)
 484 {
 485    mmap(0, 0, 0, 0, 0, 0);
 486    return 0;
 487 }
 488 !
 489
 490 link_check mremap 'for mremap()' '#define HAVE_MREMAP' << \!
 491 #include <sys/types.h>
 492 #include <sys/mman.h>
 493 int main(void)
 494 {
 495    mremap(0, 0, 0, MREMAP_MAYMOVE);
 496    return 0;
 497 }
 498 !
 499
 500 link_check setlocale 'for setlocale()' '#define HAVE_SETLOCALE' << \!
 501 #include <locale.h>
 502 int main(void)
 503 {
 504    setlocale(LC_ALL, "");
 505    return 0;
 506 }
 507 !
 508
 509 if [ "${have_setlocale}" = yes ]; then
 510    link_check c90amend1 'for ISO/IEC 9899:1990/Amendment 1:1995' \
 511       '#define HAVE_C90AMEND1' << \!
 512 #include <limits.h>
 513 #include <stdlib.h>
 514 #include <wchar.h>
 515 #include <wctype.h>
 516 int main(void)
 517 {
 518         char mbb[MB_LEN_MAX + 1];
 519    wchar_t      wc;
 520    iswprint(L'c');
 521    towupper(L'c');
 522    mbtowc(&wc, "x", 1);
 523    mbrtowc(&wc, "x", 1, NULL);
 524         (void)wctomb(mbb, wc);
 525    return (mblen("\0", 1) == 0);
 526 }
 527 !
 528
 529    if [ "${have_c90amend1}" = yes ]; then
 530       link_check wcwidth 'for wcwidth()' '#define HAVE_WCWIDTH' << \!
 531 #include <wchar.h>
 532 int main(void)
 533 {
 534    wcwidth(L'c');
 535    return 0;
 536 }
 537 !
 538    fi
 539
 540    link_check nl_langinfo 'for nl_langinfo()' '#define HAVE_NL_LANGINFO' << \!
 541 #include <langinfo.h>
 542 #include <stdlib.h>
 543 int main(void)
 544 {
 545    nl_langinfo(DAY_1);
 546    return (nl_langinfo(CODESET) == NULL);
 547 }
 548 !
 549 fi # have_setlocale
 550
 551 link_check mkstemp 'for mkstemp()' '#define HAVE_MKSTEMP' << \!
 552 #include <stdlib.h>
 553 int main(void)
 554 {
 555    mkstemp("x");
 556    return 0;
 557 }
 558 !
 559
 560 # Note: run_check, thus we also get only the desired implementation...
 561 run_check realpath 'for realpath()' '#define HAVE_REALPATH' << \!
 562 #include <stdlib.h>
 563 int main(void)
 564 {
 565    char *x = realpath(".", NULL), *y = realpath("/", NULL);
 566    return (x != NULL && y != NULL) ? 0 : 1;
 567 }
 568 !
 569
 570 link_check wordexp 'for wordexp()' '#define HAVE_WORDEXP' << \!
 571 #include <wordexp.h>
 572 int main(void)
 573 {
 574    wordexp((char *)0, (wordexp_t *)0, 0);
 575    return 0;
 576 }
 577 !
 578
 579 ##
 580
 581 if wantfeat DEBUG; then
 582    echo '#define HAVE_DEBUG' >> ${h}
 583 fi
 584
 585 if wantfeat AMALGAMATION; then
 586    echo '#define HAVE_AMALGAMATION' >> ${h}
 587 fi
 588
 589 if nwantfeat NOALLOCA; then
 590    # Due to NetBSD PR lib/47120 it seems best not to use non-cc-builtin
 591    # versions of alloca(3) since modern compilers just can't be trusted
 592    # not to overoptimize and silently break some code
 593    link_check alloca 'for __builtin_alloca()' \
 594       '#define HAVE_ALLOCA __builtin_alloca' << \!
 595 int main(void)
 596 {
 597    void *vp = __builtin_alloca(1);
 598    return (!! vp);
 599 }
 600 !
 601 fi
 602
 603 if nwantfeat NOGETOPT; then
 604    link_check getopt 'for getopt()' '#define HAVE_GETOPT' << \!
 605 #include <unistd.h>
 606 int main(int argc, char **argv)
 607 {
 608 #if defined __GLIBC__ || defined __linux__
 609    Argument and option reordering is not a desired feature.
 610 #else
 611    getopt(argc, argv, "oPt");
 612 #endif
 613    return (((long)optarg + optind) & 0x7F);
 614 }
 615 !
 616 fi
 617
 618 ##
 619
 620 if wantfeat ICONV; then
 621    ${cat} > ${tmp2}.c << \!
 622 #include <iconv.h>
 623 int main(void)
 624 {
 625    iconv_t      id;
 626
 627    id = iconv_open("foo", "bar");
 628    return 0;
 629 }
 630 !
 631    < ${tmp2}.c link_check iconv 'for iconv functionality' \
 632          '#define HAVE_ICONV' ||
 633       < ${tmp2}.c link_check iconv \
 634          'for iconv functionality in libiconv' \
 635          '#define HAVE_ICONV' '-liconv'
 636 else
 637    echo '/* WANT_ICONV=0 */' >> ${h}
 638 fi # wantfeat ICONV
 639
 640 if wantfeat SOCKETS; then
 641    compile_check arpa_inet_h 'for <arpa/inet.h>' \
 642       '#define HAVE_ARPA_INET_H' << \!
 643 #include "config.h"
 644 #include <sys/types.h>
 645 #include <sys/socket.h>
 646 #include <netdb.h>
 647 #include <netinet/in.h>
 648 #include <arpa/inet.h>
 649 !
 650
 651    ${cat} > ${tmp2}.c << \!
 652 #include "config.h"
 653 #include <sys/types.h>
 654 #include <sys/socket.h>
 655 #include <netdb.h>
 656 #include <netinet/in.h>
 657 #ifdef HAVE_ARPA_INET_H
 658 #include <arpa/inet.h>
 659 #endif
 660
 661 int main(void)
 662 {
 663    struct sockaddr      s;
 664    socket(AF_INET, SOCK_STREAM, 0);
 665    connect(0, &s, 0);
 666    gethostbyname("foo");
 667    return 0;
 668 }
 669 !
 670
 671    < ${tmp2}.c link_check sockets 'for sockets in libc' \
 672          '#define HAVE_SOCKETS' ||
 673       < ${tmp2}.c link_check sockets 'for sockets in libnsl' \
 674          '#define HAVE_SOCKETS' '-lnsl' ||
 675       < ${tmp2}.c link_check sockets \
 676          'for sockets in libsocket and libnsl' \
 677          '#define HAVE_SOCKETS' '-lsocket -lnsl' ||
 678       WANT_SOCKETS=0
 679
 680    # XXX Shouldn't it be a hard error if there is no socket support, then?
 681    option_update
 682 else
 683    echo '/* WANT_SOCKETS=0 */' >> ${h}
 684 fi # wantfeat SOCKETS
 685
 686 wantfeat SOCKETS &&
 687 link_check setsockopt 'for setsockopt()' '#define HAVE_SETSOCKOPT' << \!
 688 #include <sys/socket.h>
 689 #include <stdlib.h>
 690 int main(void)
 691 {
 692    int sockfd = 3;
 693    setsockopt(sockfd, SOL_SOCKET, SO_KEEPALIVE, NULL, 0);
 694    return 0;
 695 }
 696 !
 697
 698 wantfeat SOCKETS && [ -n "${have_setsockopt}" ] &&
 699 link_check so_sndtimeo 'for SO_SNDTIMEO' '#define HAVE_SO_SNDTIMEO' << \!
 700 #include <sys/socket.h>
 701 #include <stdlib.h>
 702 int main(void)
 703 {
 704    struct timeval tv;
 705    int sockfd = 3;
 706    tv.tv_sec = 42;
 707    tv.tv_usec = 21;
 708    setsockopt(sockfd, SOL_SOCKET, SO_SNDTIMEO, &tv, sizeof tv);
 709    setsockopt(sockfd, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof tv);
 710    return 0;
 711 }
 712 !
 713
 714 wantfeat SOCKETS && [ -n "${have_setsockopt}" ] &&
 715 link_check so_linger 'for SO_LINGER' '#define HAVE_SO_LINGER' << \!
 716 #include <sys/socket.h>
 717 #include <stdlib.h>
 718 int main(void)
 719 {
 720    struct linger li;
 721    int sockfd = 3;
 722    li.l_onoff = 1;
 723    li.l_linger = 42;
 724    setsockopt(sockfd, SOL_SOCKET, SO_LINGER, &li, sizeof li);
 725    return 0;
 726 }
 727 !
 728
 729 if wantfeat IPV6; then
 730    link_check ipv6 'for IPv6 functionality' '#define HAVE_IPV6' << \!
 731 #include "config.h"
 732 #include <sys/types.h>
 733 #include <sys/socket.h>
 734 #include <netdb.h>
 735 #include <netinet/in.h>
 736 #ifdef HAVE_ARPA_INET_H
 737 #include <arpa/inet.h>
 738 #endif
 739
 740 int main(void)
 741 {
 742    struct addrinfo      a, *ap;
 743    getaddrinfo("foo", "0", &a, &ap);
 744    return 0;
 745 }
 746 !
 747 else
 748    echo '/* WANT_IPV6=0 */' >> ${h}
 749 fi # wantfeat IPV6
 750
 751 if wantfeat IMAP; then
 752    echo '#define HAVE_IMAP' >> ${h}
 753 else
 754    echo '/* WANT_IMAP=0 */' >> ${h}
 755 fi
 756
 757 if wantfeat POP3; then
 758    echo '#define HAVE_POP3' >> ${h}
 759 else
 760    echo '/* WANT_POP3=0 */' >> ${h}
 761 fi
 762
 763 if wantfeat SMTP; then
 764    echo '#define HAVE_SMTP' >> ${h}
 765 else
 766    echo '/* WANT_SMTP=0 */' >> ${h}
 767 fi
 768
 769 if wantfeat SSL; then
 770    link_check openssl 'for sufficiently recent OpenSSL' \
 771       '#define HAVE_SSL
 772       #define HAVE_OPENSSL' '-lssl -lcrypto' << \!
 773 #include <openssl/ssl.h>
 774 #include <openssl/err.h>
 775 #include <openssl/x509v3.h>
 776 #include <openssl/x509.h>
 777 #include <openssl/rand.h>
 778
 779 #if defined OPENSSL_NO_SSL2 && defined OPENSSL_NO_SSL3 &&\
 780       defined OPENSSL_NO_TLS1
 781 # error We need one of (SSLv2 and) SSLv3 and TLS1.
 782 #endif
 783
 784 int main(void)
 785 {
 786    SSLv23_client_method();
 787 #ifndef OPENSSL_NO_SSL3
 788    SSLv3_client_method();
 789 #endif
 790 #ifndef OPENSSL_NO_TLS1
 791    TLSv1_client_method();
 792 # ifdef TLS1_1_VERSION
 793    TLSv1_1_client_method();
 794 # endif
 795 # ifdef TLS1_2_VERSION
 796    TLSv1_2_client_method();
 797 # endif
 798 #endif
 799    PEM_read_PrivateKey(0, 0, 0, 0);
 800    return 0;
 801 }
 802 !
 803
 804    if [ "${have_openssl}" = 'yes' ]; then
 805       compile_check stack_of 'for OpenSSL STACK_OF()' \
 806          '#define HAVE_STACK_OF' << \!
 807 #include <openssl/ssl.h>
 808 #include <openssl/err.h>
 809 #include <openssl/x509v3.h>
 810 #include <openssl/x509.h>
 811 #include <openssl/rand.h>
 812
 813 int main(void)
 814 {
 815    STACK_OF(GENERAL_NAME) *gens = NULL;
 816    printf("%p", gens);  /* to make it used */
 817    return 0;
 818 }
 819 !
 820
 821       run_check openssl_md5 'for MD5 digest in OpenSSL' \
 822          '#define HAVE_OPENSSL_MD5' << \!
 823 #include <string.h>
 824 #include <openssl/md5.h>
 825
 826 int main(void)
 827 {
 828    char const dat[] = "abrakadabrafidibus";
 829    char dig[16], hex[16 * 2];
 830    MD5_CTX ctx;
 831         size_t i, j;
 832
 833    memset(dig, 0, sizeof(dig));
 834    memset(hex, 0, sizeof(hex));
 835    MD5_Init(&ctx);
 836    MD5_Update(&ctx, dat, sizeof(dat) - 1);
 837    MD5_Final(dig, &ctx);
 838
 839 #define hexchar(n)               ((n)>9 ? (n)-10+'a' : (n)+'0')
 840         for (i = 0; i < sizeof(hex) / 2; i++) {
 841                 j = i << 1;
 842                 hex[j] = hexchar((dig[i] & 0xf0) >> 4);
 843                 hex[++j] = hexchar(dig[i] & 0x0f);
 844    }
 845    return !!memcmp("6d7d0a3d949da2e96f2aa010f65d8326", hex, sizeof(hex));
 846 }
 847 !
 848    fi
 849
 850 else
 851    echo '/* WANT_SSL=0 */' >> ${h}
 852 fi # wantfeat SSL
 853
 854 if wantfeat GSSAPI; then
 855    ${cat} > ${tmp2}.c << \!
 856 #include <gssapi/gssapi.h>
 857
 858 int main(void)
 859 {
 860    gss_import_name(0, 0, GSS_C_NT_HOSTBASED_SERVICE, 0);
 861    gss_init_sec_context(0,0,0,0,0,0,0,0,0,0,0,0,0);
 862    return 0;
 863 }
 864 !
 865    ${sed} -e '1s/gssapi\///' < ${tmp2}.c > ${tmp3}.c
 866
 867    if command -v krb5-config >/dev/null 2>&1; then
 868       i=`command -v krb5-config`
 869       GSSAPI_LIBS="`CFLAGS= ${i} --libs gssapi`"
 870       GSSAPI_INCS="`CFLAGS= ${i} --cflags`"
 871       i='for GSSAPI via krb5-config(1)'
 872    else
 873       GSSAPI_LIBS='-lgssapi'
 874       GSSAPI_INCS=
 875       i='for GSSAPI in gssapi/gssapi.h, libgssapi'
 876    fi
 877    < ${tmp2}.c link_check gssapi \
 878          "${i}" '#define HAVE_GSSAPI' \
 879          "${GSSAPI_LIBS}" "${GSSAPI_INCS}" ||\
 880       < ${tmp3}.c link_check gssapi \
 881          'for GSSAPI in gssapi.h, libgssapi' \
 882          '#define HAVE_GSSAPI
 883          #define        GSSAPI_REG_INCLUDE' \
 884          '-lgssapi' ||\
 885       < ${tmp2}.c link_check gssapi 'for GSSAPI in libgssapi_krb5' \
 886          '#define HAVE_GSSAPI' \
 887          '-lgssapi_krb5' ||\
 888       < ${tmp3}.c link_check gssapi \
 889          'for GSSAPI in libgssapi, OpenBSD-style (pre 5.3)' \
 890          '#define HAVE_GSSAPI
 891          #define        GSSAPI_REG_INCLUDE' \
 892          '-lgssapi -lkrb5 -lcrypto' \
 893          '-I/usr/include/kerberosV' ||\
 894       < ${tmp2}.c link_check gssapi 'for GSSAPI in libgss' \
 895          '#define HAVE_GSSAPI' \
 896          '-lgss' ||\
 897       link_check gssapi 'for GSSAPI in libgssapi_krb5, old-style' \
 898          '#define HAVE_GSSAPI
 899          #define GSSAPI_OLD_STYLE' \
 900          '-lgssapi_krb5' << \!
 901 #include <gssapi/gssapi.h>
 902 #include <gssapi/gssapi_generic.h>
 903
 904 int main(void)
 905 {
 906    gss_import_name(0, 0, gss_nt_service_name, 0);
 907    gss_init_sec_context(0,0,0,0,0,0,0,0,0,0,0,0,0);
 908    return 0;
 909 }
 910 !
 911 else
 912    echo '/* WANT_GSSAPI=0 */' >> ${h}
 913 fi # wantfeat GSSAPI
 914
 915 if wantfeat IDNA; then
 916    link_check idna 'for GNU Libidn' '#define HAVE_IDNA' '-lidn' << \!
 917 #include <idna.h>
 918 #include <stringprep.h>
 919 int main(void)
 920 {
 921    char *utf8, *idna_ascii, *idna_utf8;
 922    utf8 = stringprep_locale_to_utf8("does.this.work");
 923    if (idna_to_ascii_8z(utf8, &idna_ascii, IDNA_USE_STD3_ASCII_RULES)
 924          != IDNA_SUCCESS)
 925       return 1;
 926    /* (Rather link check only here) */
 927    idna_utf8 = stringprep_convert(idna_ascii, "UTF-8", "de_DE");
 928    return 0;
 929 }
 930 !
 931 else
 932    echo '/* WANT_IDNA=0 */' >> ${h}
 933 fi
 934
 935 if wantfeat REGEX; then
 936    link_check regex 'for regular expressions' '#define HAVE_REGEX' << \!
 937 #include <regex.h>
 938 #include <stdlib.h>
 939 int main(void)
 940 {
 941    int status;
 942    regex_t re;
 943    if (regcomp(&re, ".*bsd", REG_EXTENDED | REG_ICASE | REG_NOSUB) != 0)
 944       return 1;
 945    status = regexec(&re, "plan9", 0,NULL, 0);
 946    regfree(&re);
 947    return !(status == REG_NOMATCH);
 948 }
 949 !
 950 else
 951    echo '/* WANT_REGEX=0 */' >> ${h}
 952 fi
 953
 954 if wantfeat READLINE; then
 955    __edrdlib() {
 956       link_check readline "for readline(3) (${1})" \
 957          '#define HAVE_READLINE' "${1}" << \!
 958 #include <stdio.h>
 959 #include <readline/history.h>
 960 #include <readline/readline.h>
 961 int main(void)
 962 {
 963    char *rl;
 964    using_history();
 965    read_history("");
 966    stifle_history(242);
 967    rl = readline("Enter a line:");
 968    if (rl && *rl)
 969       add_history(rl);
 970    write_history("");
 971    rl_extend_line_buffer(10);
 972    rl_point = rl_end = 10;
 973    rl_pre_input_hook = (rl_hook_func_t*)NULL;
 974    rl_forced_update_display();
 975
 976    rl_free_line_state();
 977    rl_cleanup_after_signal();
 978    rl_reset_after_signal();
 979    return 0;
 980 }
 981 !
 982    }
 983
 984    __edrdlib -lreadline ||
 985       __edrdlib '-lreadline -ltermcap'
 986    [ -n "${have_readline}" ] && WANT_TABEXPAND=1
 987 fi
 988
 989 if wantfeat EDITLINE && [ -z "${have_readline}" ]; then
 990    __edlib() {
 991       link_check editline "for editline(3) (${1})" \
 992          '#define HAVE_EDITLINE' "${1}" << \!
 993 #include <histedit.h>
 994 static char * getprompt(void) { return (char*)"ok"; }
 995 int main(void)
 996 {
 997    HistEvent he;
 998    EditLine *el_el = el_init("TEST", stdin, stdout, stderr);
 999    History *el_hcom = history_init();
1000    history(el_hcom, &he, H_SETSIZE, 242);
1001    el_set(el_el, EL_SIGNAL, 0);
1002    el_set(el_el, EL_TERMINAL, NULL);
1003    el_set(el_el, EL_HIST, &history, el_hcom);
1004    el_set(el_el, EL_EDITOR, "emacs");
1005    el_set(el_el, EL_PROMPT, &getprompt);
1006    el_source(el_el, NULL);
1007    el_end(el_el);
1008    /* TODO add loader and addfn checks */
1009    history_end(el_hcom);
1010    return 0;
1011 }
1012 !
1013    }
1014
1015    __edlib -ledit ||
1016       __edlib '-ledit -ltermcap'
1017    [ -n "${have_editline}" ] && WANT_TABEXPAND=0
1018 fi
1019
1020 if wantfeat NCL && [ -z "${have_editline}" ] && [ -z "${have_readline}" ] &&\
1021       [ -n "${have_c90amend1}" ]; then
1022    have_ncl=1
1023    echo '#define HAVE_NCL' >> ${h}
1024 else
1025    echo '/* WANT_{READLINE,EDITLINE,NCL}=0 */' >> ${h}
1026 fi
1027
1028 if [ -n "${have_ncl}" ] || [ -n "${have_editline}" ] ||\
1029       [ -n "${have_readline}" ]; then
1030    have_cle=1
1031 fi
1032
1033 if [ -n "${have_cle}" ] && wantfeat TABEXPAND; then
1034    echo '#define HAVE_TABEXPAND' >> ${h}
1035 else
1036    echo '/* WANT_TABEXPAND=0 */' >> ${h}
1037 fi
1038
1039 if [ -n "${have_cle}" ] && wantfeat HISTORY; then
1040    echo '#define HAVE_HISTORY' >> ${h}
1041 else
1042    echo '/* WANT_HISTORY=0 */' >> ${h}
1043 fi
1044
1045 if wantfeat SPAM; then
1046    echo '#define HAVE_SPAM' >> ${h}
1047    if command -v spamc >/dev/null 2>&1; then
1048       echo "#define SPAMC_PATH \"`command -v spamc`\"" >> ${h}
1049    fi
1050 else
1051    echo '/* WANT_SPAM=0 */' >> ${h}
1052 fi
1053
1054 if wantfeat DOCSTRINGS; then
1055    echo '#define HAVE_DOCSTRINGS' >> ${h}
1056 else
1057    echo '/* WANT_DOCSTRINGS=0 */' >> ${h}
1058 fi
1059
1060 if wantfeat QUOTE_FOLD &&\
1061       [ -n "${have_c90amend1}" ] && [ -n "${have_wcwidth}" ]; then
1062    echo '#define HAVE_QUOTE_FOLD' >> ${h}
1063 else
1064    echo '/* WANT_QUOTE_FOLD=0 */' >> ${h}
1065 fi
1066
1067 if wantfeat COLOUR; then
1068    echo '#define HAVE_COLOUR' >> ${h}
1069 else
1070    echo '/* WANT_COLOUR=0 */' >> ${h}
1071 fi
1072
1073 if wantfeat MD5; then
1074    echo '#define HAVE_MD5' >> ${h}
1075 else
1076    echo '/* WANT_MD5=0 */' >> ${h}
1077 fi
1078
1079 ## Summarizing ##
1080
1081 # Since we cat(1) the content of those to cc/"ld", convert them to single line
1082 squeeze_em() {
1083    < "${1}" > "${2}" ${awk} \
1084    'BEGIN {ORS = " "} /^[^#]/ {print} {next} END {ORS = ""; print "\n"}'
1085 }
1086 ${rm} -f ${tmp}
1087 squeeze_em ${inc} ${tmp}
1088 ${mv} ${tmp} ${inc}
1089 squeeze_em ${lib} ${tmp}
1090 ${mv} ${tmp} ${lib}
1091
1092 # config.h
1093 ${mv} ${h} ${tmp}
1094 printf '#ifndef _CONFIG_H\n# define _CONFIG_H\n' > ${h}
1095 ${cat} ${tmp} >> ${h}
1096
1097 printf '\n/* The "feature string", for "simplicity" and lex.c */\n' >> ${h}
1098 printf '#ifdef _MAIN_SOURCE\n' >> ${h}
1099 printf '# ifdef HAVE_AMALGAMATION\nstatic\n# endif\n' >> ${h}
1100 printf 'char const features[] = "MIME"\n' >> ${h}
1101 printf '# ifdef HAVE_DOCSTRINGS\n   ",DOCSTRINGS"\n# endif\n' >> ${h}
1102 printf '# ifdef HAVE_ICONV\n   ",ICONV"\n# endif\n' >> ${h}
1103 printf '# ifdef HAVE_SETLOCALE\n   ",LOCALES"\n# endif\n' >> ${h}
1104 printf '# ifdef HAVE_C90AMEND1\n   ",MULTIBYTE CHARSETS"\n# endif\n' >> ${h}
1105 printf '# ifdef HAVE_NL_LANGINFO\n   ",TERMINAL CHARSET"\n# endif\n' >> ${h}
1106 printf '# ifdef HAVE_SOCKETS\n   ",NETWORK"\n# endif\n' >> ${h}
1107 printf '# ifdef HAVE_IPV6\n   ",IPv6"\n# endif\n' >> ${h}
1108 printf '# ifdef HAVE_SSL\n   ",S/MIME,SSL/TSL"\n# endif\n' >> ${h}
1109 printf '# ifdef HAVE_IMAP\n   ",IMAP"\n# endif\n' >> ${h}
1110 printf '# ifdef HAVE_GSSAPI\n   ",GSSAPI"\n# endif\n' >> ${h}
1111 printf '# ifdef HAVE_POP3\n   ",POP3"\n# endif\n' >> ${h}
1112 printf '# ifdef HAVE_SMTP\n   ",SMTP"\n# endif\n' >> ${h}
1113 printf '# ifdef HAVE_SPAM\n   ",SPAM"\n# endif\n' >> ${h}
1114 printf '# ifdef HAVE_IDNA\n   ",IDNA"\n# endif\n' >> ${h}
1115 printf '# ifdef HAVE_REGEX\n   ",REGEX"\n# endif\n' >> ${h}
1116 printf '# ifdef HAVE_READLINE\n   ",READLINE"\n# endif\n' >> ${h}
1117 printf '# ifdef HAVE_EDITLINE\n   ",EDITLINE"\n# endif\n' >> ${h}
1118 printf '# ifdef HAVE_NCL\n   ",NCL"\n# endif\n' >> ${h}
1119 printf '# ifdef HAVE_TABEXPAND\n   ",TABEXPAND"\n# endif\n' >> ${h}
1120 printf '# ifdef HAVE_HISTORY\n   ",HISTORY MANAGEMENT"\n# endif\n' >> ${h}
1121 printf '# ifdef HAVE_QUOTE_FOLD\n   ",QUOTE-FOLD"\n# endif\n' >> ${h}
1122 printf '# ifdef HAVE_COLOUR\n   ",COLOUR"\n# endif\n' >> ${h}
1123 printf '# ifdef HAVE_DEBUG\n   ",DEBUG"\n# endif\n' >> ${h}
1124 printf ';\n#endif /* _MAIN_SOURCE */\n' >> ${h}
1125
1126 printf '#endif /* _CONFIG_H */\n' >> ${h}
1127 ${rm} -f ${tmp}
1128
1129 # Create the real mk.mk
1130 ${rm} -rf ${tmp0}.* ${tmp0}*
1131 printf 'OBJ_SRC = ' >> ${mk}
1132 if nwantfeat AMALGAMATION; then
1133    echo *.c >> ${mk}
1134    echo 'OBJ_DEP =' >> ${mk}
1135 else
1136    j=`echo "${src}" | sed 's/^.\///'`
1137    echo "${j}" >> ${mk}
1138    printf 'OBJ_DEP = main.c ' >> ${mk}
1139    printf '#define _MAIN_SOURCE\n' >> ${src}
1140    printf '#include "nail.h"\n#include "main.c"\n' >> ${src}
1141    for i in *.c; do
1142       if [ "${i}" = "${j}" ] || [ "${i}" = main.c ]; then
1143          continue
1144       fi
1145       printf "${i} " >> ${mk}
1146       printf "#include \"${i}\"\n" >> ${src}
1147    done
1148    echo >> ${mk}
1149 fi
1150
1151 echo "LIBS = `${cat} ${lib}`" >> ${mk}
1152 echo "INCLUDES = `${cat} ${inc}`" >> ${mk}
1153 echo >> ${mk}
1154 ${cat} ./mk-mk.in >> ${mk}
1155
1156 ## Finished! ##
1157
1158 ${cat} > ${tmp2}.c << \!
1159 #include "config.h"
1160 #ifdef HAVE_NL_LANGINFO
1161 # include <langinfo.h>
1162 #endif
1163 :
1164 :The following optional features are enabled:
1165 #ifdef HAVE_ICONV
1166 : + Character set conversion using iconv()
1167 #endif
1168 #ifdef HAVE_SETLOCALE
1169 : + Locale support: Printable characters depend on the environment
1170 # ifdef HAVE_C90AMEND1
1171 : + Multibyte character support
1172 # endif
1173 # ifdef HAVE_NL_LANGINFO
1174 : + Automatic detection of terminal character set
1175 # endif
1176 #endif
1177 #ifdef HAVE_SOCKETS
1178 : + Network support
1179 #endif
1180 #ifdef HAVE_IPV6
1181 : + Support for Internet Protocol v6 (IPv6)
1182 #endif
1183 #ifdef HAVE_SSL
1184 # ifdef HAVE_OPENSSL
1185 : + S/MIME and SSL/TLS using OpenSSL
1186 # endif
1187 #endif
1188 #ifdef HAVE_IMAP
1189 : + IMAP protocol
1190 #endif
1191 #ifdef HAVE_GSSAPI
1192 : + IMAP GSSAPI authentication
1193 #endif
1194 #ifdef HAVE_POP3
1195 : + POP3 protocol
1196 #endif
1197 #ifdef HAVE_SMTP
1198 : + SMTP protocol
1199 #endif
1200 #ifdef HAVE_SPAM
1201 : + Interaction with spam filters
1202 #endif
1203 #ifdef HAVE_IDNA
1204 : + IDNA (internationalized domain names for applications) support
1205 #endif
1206 #ifdef HAVE_REGEX
1207 : + Regular expression searches
1208 #endif
1209 #if defined HAVE_READLINE || defined HAVE_EDITLINE || defined HAVE_NCL
1210 : + Command line editing
1211 # ifdef HAVE_TABEXPAND
1212 : + + Tabulator expansion
1213 # endif
1214 # ifdef HAVE_HISTORY
1215 : + + History management
1216 # endif
1217 #endif
1218 #ifdef HAVE_QUOTE_FOLD
1219 : + Extended *quote-fold*ing
1220 #endif
1221 #ifdef HAVE_COLOUR
1222 : + Coloured message display (simple)
1223 #endif
1224 :
1225 :The following optional features are disabled:
1226 #ifndef HAVE_ICONV
1227 : - Character set conversion using iconv()
1228 #endif
1229 #ifndef HAVE_SETLOCALE
1230 : - Locale support: Only ASCII characters are recognized
1231 #endif
1232 # ifndef HAVE_C90AMEND1
1233 : - Multibyte character support
1234 # endif
1235 # ifndef HAVE_NL_LANGINFO
1236 : - Automatic detection of terminal character set
1237 # endif
1238 #ifndef HAVE_SOCKETS
1239 : - Network support
1240 #endif
1241 #ifndef HAVE_IPV6
1242 : - Support for Internet Protocol v6 (IPv6)
1243 #endif
1244 #if !defined HAVE_SSL
1245 : - SSL/TLS (network transport authentication and encryption)
1246 #endif
1247 #ifndef HAVE_IMAP
1248 : - IMAP protocol
1249 #endif
1250 #ifndef HAVE_GSSAPI
1251 : - IMAP GSSAPI authentication
1252 #endif
1253 #ifndef HAVE_POP3
1254 : - POP3 protocol
1255 #endif
1256 #ifndef HAVE_SMTP
1257 : - SMTP protocol
1258 #endif
1259 #ifndef HAVE_SPAM
1260 : - Interaction with spam filters
1261 #endif
1262 #ifndef HAVE_IDNA
1263 : - IDNA (internationalized domain names for applications) support
1264 #endif
1265 #ifndef HAVE_REGEX
1266 : - Regular expression searches
1267 #endif
1268 #if !defined HAVE_READLINE && !defined HAVE_EDITLINE && !defined HAVE_NCL
1269 : - Command line editing and history
1270 #endif
1271 #ifndef HAVE_QUOTE_FOLD
1272 : - Extended *quote-fold*ing
1273 #endif
1274 #ifndef HAVE_COLOUR
1275 : - Coloured message display (simple)
1276 #endif
1277 :
1278 :Remarks:
1279 #ifndef HAVE_SNPRINTF
1280 : . The function snprintf() could not be found. mailx will be compiled to use
1281 : sprintf() instead. This might overflow buffers if input values are larger
1282 : than expected. Use the resulting binary with care or update your system
1283 : environment and start the configuration process again.
1284 #endif
1285 #ifndef HAVE_FCHDIR
1286 : . The function fchdir() could not be found. mailx will be compiled to use
1287 : chdir() instead. This is not a problem unless the current working
1288 : directory of mailx is moved while the IMAP cache is used.
1289 #endif
1290 #ifndef HAVE_GETOPT
1291 : . Using a minimal builtin POSIX-like getopt()
1292 #endif
1293 #ifdef HAVE_DEBUG
1294 : . Debug enabled binary: not meant to be used by end-users: THANKS!
1295 #endif
1296 :
1297 !
1298
1299 ${make} -f ${makefile} ${tmp2}.x
1300 < ${tmp2}.x >&5 ${sed} -e '/^[^:]/d; /^$/d; s/^://'
1301
1302 # vim:set fenc=utf-8:s-it-mode