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_IMAP_SEARCH=0
  15       WANT_REGEX=0
  16       WANT_SPAM=0
  17       WANT_DOCSTRINGS=0
  18       WANT_QUOTE_FOLD=0
  19       WANT_COLOUR=0
  20       ;;
  21    MEDIUM)
  22       WANT_SOCKETS=0
  23       WANT_IDNA=0
  24       WANT_READLINE=0 WANT_EDITLINE=0
  25       WANT_IMAP_SEARCH=0
  26       WANT_SPAM=0
  27       WANT_QUOTE_FOLD=0
  28       WANT_COLOUR=0
  29       ;;
  30    NETSEND)
  31       WANT_POP3=0
  32       WANT_IMAP=0
  33       WANT_READLINE=0 WANT_EDITLINE=0
  34       WANT_IMAP_SEARCH=0
  35       WANT_SPAM=0
  36       WANT_QUOTE_FOLD=0
  37       WANT_COLOUR=0
  38       ;;
  39    MAXIMAL)
  40       WANT_GSSAPI=1
  41       ;;
  42    *)
  43       echo >&2 "Unknown CONFIG= setting: ${CONFIG}"
  44       echo >&2 'Possible values: MINIMAL, MEDIUM, NETSEND, MAXIMAL'
  45       exit 1
  46    esac
  47 fi
  48
  49 # Inter-relationships
  50 option_update() {
  51    if nwantfeat SOCKETS; then
  52       WANT_IPV6=0 WANT_SSL=0
  53       WANT_SMTP=0 WANT_POP3=0 WANT_IMAP=0 WANT_GSSAPI=0
  54       WANT_NETRC=0 WANT_AGENT=0
  55    fi
  56    if nwantfeat SMTP && nwantfeat POP3 && nwantfeat IMAP; then
  57       WANT_SOCKETS=0 WANT_IPV6=0 WANT_SSL=0 WANT_NETRC=0 WANT_AGENT=0
  58    fi
  59    if nwantfeat SMTP && nwantfeat IMAP; then
  60       WANT_GSSAPI=0
  61    fi
  62    # If we don't need MD5 except for producing boundary and message-id strings,
  63    # leave it off, plain old srand(3) should be enough for that purpose.
  64    if nwantfeat SOCKETS; then
  65       WANT_MD5=0
  66    fi
  67    if wantfeat DEBUG; then
  68       WANT_NOALLOCA=1 WANT_DEVEL=1
  69    fi
  70 }
  71
  72 # Check out compiler ($CC) and -flags ($CFLAGS)
  73 compiler_flags() {
  74    # $CC is overwritten when empty or a default "cc", even without WANT_AUTOCC
  75    optim= dbgoptim= _CFLAGS=
  76    if [ -z "${CC}" ] || [ "${CC}" = cc ]; then
  77       if { CC="`command -v clang`"; }; then
  78          :
  79       elif { CC="`command -v gcc`"; }; then
  80          :
  81       elif { CC="`command -v c89`"; }; then
  82          [ "`uname -s`" = UnixWare ] && _CFLAGS=-v optim=-O dbgoptim=
  83       elif { CC="`command -v c99`"; }; then
  84          :
  85       else
  86          echo >&2 'ERROR'
  87          echo >&2 ' I cannot find a compiler!'
  88          echo >&2 ' Neither of clang(1), gcc(1), c89(1) and c99(1).'
  89          echo >&2 ' Please set the CC environment variable, maybe CFLAGS also.'
  90          exit 1
  91       fi
  92    fi
  93    export CC
  94
  95    ccver=`${CC} --version 2>/dev/null`
  96    stackprot=no
  97    if { i=${ccver}; echo "${i}"; } | ${grep} -q -i -e gcc -e clang; then
  98    #if echo "${i}" | ${grep} -q -i -e gcc -e 'clang version 1'; then
  99       optim=-O2 dbgoptim=-O
 100       stackprot=yes
 101       _CFLAGS="${_CFLAGS} -std=c89 -Wall -Wextra -pedantic"
 102       _CFLAGS="${_CFLAGS} -fno-unwind-tables -fno-asynchronous-unwind-tables"
 103       _CFLAGS="${_CFLAGS} -fstrict-aliasing"
 104       _CFLAGS="${_CFLAGS} -Wbad-function-cast -Wcast-align -Wcast-qual"
 105       _CFLAGS="${_CFLAGS} -Winit-self -Wmissing-prototypes"
 106       _CFLAGS="${_CFLAGS} -Wshadow -Wunused -Wwrite-strings"
 107       _CFLAGS="${_CFLAGS} -Wno-long-long" # ISO C89 has no 'long long'...
 108       if { i=${ccver}; echo "${i}"; } | ${grep} -q -e 'clang version 1'; then
 109          _CFLAGS="${_CFLAGS} -Wstrict-overflow=5"
 110       else
 111          _CFLAGS="${_CFLAGS} -fstrict-overflow -Wstrict-overflow=5"
 112          if wantfeat AMALGAMATION && nwantfeat DEBUG; then
 113             _CFLAGS="${_CFLAGS} -Wno-unused-function"
 114          fi
 115          if { i=${ccver}; echo "${i}"; } | ${grep} -q -i -e clang; then
 116             _CFLAGS="${_CFLAGS} -Wno-unused-result" # TODO handle the right way
 117          fi
 118       fi
 119       if wantfeat AMALGAMATION; then
 120          _CFLAGS="${_CFLAGS} -pipe"
 121       fi
 122 #   elif { i=${ccver}; echo "${i}"; } | ${grep} -q -i -e clang; then
 123 #      optim=-O3 dbgoptim=-O
 124 #      stackprot=yes
 125 #      _CFLAGS='-std=c89 -Weverything -Wno-long-long'
 126 #      if wantfeat AMALGAMATION; then
 127 #         _CFLAGS="${_CFLAGS} -pipe"
 128 #      fi
 129    elif [ -z "${optim}" ]; then
 130       optim=-O1 dbgoptim=-O
 131    fi
 132
 133    if nwantfeat DEBUG; then
 134       _CFLAGS="${optim} -DNDEBUG ${_CFLAGS}"
 135    else
 136       _CFLAGS="${dbgoptim} -g ${_CFLAGS}";
 137       if [ "${stackprot}" = yes ]; then
 138          _CFLAGS="${_CFLAGS} -ftrapv -fstack-protector-all "
 139             _CFLAGS="${_CFLAGS} -Wstack-protector -D_FORTIFY_SOURCE=2"
 140       fi
 141    fi
 142    _CFLAGS="${_CFLAGS} ${ADDCFLAGS}"
 143    # XXX -Wl,-z,relro -Wl,-z,now -Wl,-z,noexecstack: need detection
 144    _LDFLAGS="${_LDFLAGS} ${ADDLDFLAGS}" # XXX -Wl,--sort-common,[-O1]
 145    export _CFLAGS _LDFLAGS
 146
 147    # $CFLAGS and $LDFLAGS are only overwritten if explicitly wanted
 148    if wantfeat AUTOCC; then
 149       CFLAGS=$_CFLAGS
 150       LDFLAGS=$_LDFLAGS
 151       export CFLAGS LDFLAGS
 152    fi
 153 }
 154
 155 ##  --  >8  --  8<  --  ##
 156
 157 ## Notes:
 158 ## - Heirloom sh(1) (and same origin) have problems with ': >' redirection,
 159 ##   so use "printf '' >" instead
 160 ## - Heirloom sh(1) and maybe more execute loops with redirection in a subshell
 161 ##   (but don't export eval's from within), therefore we need to (re)include
 162 ##   variable assignments at toplevel instead (via reading temporary files)
 163
 164 ## First of all, create new configuration and check wether it changed ##
 165
 166 conf=./conf.rc
 167 lst=./config.lst
 168 h=./config.h
 169 mk=./mk.mk
 170
 171 newlst=./config.lst-new
 172 newmk=./config.mk-new
 173 newh=./config.h-new
 174 tmp0=___tmp
 175 tmp=./${tmp0}1$$
 176
 177 # We need some standard utilities
 178 unset -f command
 179 check_tool() {
 180    n=$1 i=$2 opt=${3:-0}
 181    if type "${i}" >/dev/null 2>&1; then
 182       eval ${n}=${i}
 183       return 1
 184    fi
 185    if [ ${opt} -eq 0 ]; then
 186       echo >&2 "ERROR: no trace of the utility \`${n}'"
 187       exit 1
 188    fi
 189    return 0
 190 }
 191
 192 # Check those tools right now that we need before including ${conf}
 193 check_tool rm "${rm:-`command -v rm`}"
 194 check_tool sed "${sed:-`command -v sed`}"
 195
 196 # Only incorporate what wasn't overwritten from command line / CONFIG
 197 trap "${rm} -f ${tmp}; exit" 1 2 15
 198 trap "${rm} -f ${tmp}" 0
 199 ${rm} -f ${tmp}
 200
 201 < ${conf} ${sed} -e '/^[ \t]*#/d' -e '/^$/d' -e 's/[ \t]*$//' |
 202 while read line; do
 203    i="`echo ${line} | ${sed} -e 's/=.*$//'`"
 204    eval j="\$${i}" jx="\${${i}+x}"
 205    if [ -n "${j}" ] || [ "${jx}" = x ]; then
 206       line="${i}=\"${j}\""
 207    fi
 208    echo ${line}
 209 done > ${tmp}
 210 . ./${tmp}
 211
 212 check_tool awk "${awk:-`command -v awk`}"
 213 check_tool cat "${cat:-`command -v cat`}"
 214 check_tool chmod "${chmod:-`command -v chmod`}"
 215 check_tool cp "${cp:-`command -v cp`}"
 216 check_tool cmp "${cmp:-`command -v cmp`}"
 217 check_tool grep "${grep:-`command -v grep`}"
 218 check_tool mkdir "${mkdir:-`command -v mkdir`}"
 219 check_tool mv "${mv:-`command -v mv`}"
 220 # rm(1), sed(1) above
 221 check_tool tee "${tee:-`command -v tee`}"
 222
 223 check_tool make "${MAKE:-`command -v make`}"
 224 check_tool strip "${STRIP:-`command -v strip`}" 1
 225 HAVE_STRIP=${?}
 226
 227 wantfeat() {
 228    eval i=\$WANT_${1}
 229    [ "${i}" = "1" ]
 230 }
 231 nwantfeat() {
 232    eval i=\$WANT_${1}
 233    [ "${i}" != "1" ]
 234 }
 235
 236 option_update
 237
 238 # (No function since some shells loose non-exported variables in traps)
 239 trap "${rm} -f ${tmp} ${newlst} ${newmk} ${newh}; exit" 1 2 15
 240 trap "${rm} -f ${tmp} ${newlst} ${newmk} ${newh}" 0
 241 ${rm} -f ${newlst} ${newmk} ${newh}
 242
 243 # (Could: use FD redirection, add eval(1) and don't re-'. ./${newlst}')
 244 while read line; do
 245    i=`echo ${line} | ${sed} -e 's/=.*$//'`
 246    eval j=\$${i}
 247    if [ -z "${j}" ] || [ "${j}" = 0 ]; then
 248       printf "/*#define ${i}*/\n" >> ${newh}
 249    elif [ "${j}" = 1 ]; then
 250       printf "#define ${i}\n" >> ${newh}
 251    else
 252       printf "#define ${i} \"${j}\"\n" >> ${newh}
 253    fi
 254    printf "${i} = ${j}\n" >> ${newmk}
 255    printf "${i}=\"${j}\"\n"
 256 done < ${tmp} > ${newlst}
 257 . ./${newlst}
 258
 259 printf "#define UAGENT \"${SID}${NAIL}\"\n" >> ${newh}
 260 printf "UAGENT = ${SID}${NAIL}\n" >> ${newmk}
 261
 262 compiler_flags
 263
 264 printf "CC = ${CC}\n" >> ${newmk}
 265 printf "_CFLAGS = ${_CFLAGS}\nCFLAGS = ${CFLAGS}\n" >> ${newmk}
 266 printf "_LDFLAGS = ${_LDFLAGS}\nLDFLAGS = ${LDFLAGS}\n" >> ${newmk}
 267 printf "AWK = ${awk}\nCMP = ${cmp}\nCHMOD = ${chmod}\nCP = ${cp}\n" >> ${newmk}
 268 printf "GREP = ${grep}\nMKDIR = ${mkdir}\nRM = ${rm}\nSED = ${sed}\n" \
 269    >> ${newmk}
 270 printf "STRIP = ${strip}\nHAVE_STRIP = ${HAVE_STRIP}\n" >> ${newmk}
 271 # (We include the cc(1)/ld(1) environment only for update detection..)
 272 printf "CC=\"${CC}\"\n" >> ${newlst}
 273 printf "_CFLAGS=\"${_CFLAGS}\"\nCFLAGS=\"${CFLAGS}\"\n" >> ${newlst}
 274 printf "_LDFLAGS=\"${_LDFLAGS}\"\nLDFLAGS=\"${LDFLAGS}\"\n" >> ${newlst}
 275 printf "AWK=${awk}\nCMP=${cmp}\nCHMOD=${chmod}\nCP=${cp}\n" >> ${newlst}
 276 printf "GREP=${grep}\nMKDIR=${mkdir}\nRM=${rm}\nSED=${sed}\n" >> ${newlst}
 277 printf "STRIP=${strip}\nHAVE_STRIP=${HAVE_STRIP}\n" >> ${newlst}
 278
 279 if [ -f ${lst} ] && ${cmp} ${newlst} ${lst} >/dev/null 2>&1; then
 280    exit 0
 281 fi
 282 [ -f ${lst} ] && echo 'configuration updated..' || echo 'shiny configuration..'
 283
 284 ${mv} -f ${newlst} ${lst}
 285 ${mv} -f ${newh} ${h}
 286 ${mv} -f ${newmk} ${mk}
 287
 288 ## Compile and link checking ##
 289
 290 tmp2=./${tmp0}2$$
 291 tmp3=./${tmp0}3$$
 292 log=./config.log
 293 lib=./config.lib
 294 inc=./config.inc
 295 src=./config.c
 296 makefile=./config.mk
 297
 298 # (No function since some shells loose non-exported variables in traps)
 299 trap "${rm} -f ${lst} ${h} ${mk} ${lib} ${inc} ${src} ${makefile}; exit" 1 2 15
 300 trap "${rm} -rf ${tmp0}.* ${tmp0}* ${makefile}" 0
 301
 302 exec 5>&2 > ${log} 2>&1
 303 printf '' > ${lib}
 304 printf '' > ${inc}
 305 # ${src} is only created if WANT_AMALGAMATION
 306 ${rm} -f ${src}
 307 ${cat} > ${makefile} << \!
 308 .SUFFIXES: .o .c .x .y
 309 .c.o:
 310         $(CC) $(XINCS) -c $<
 311 .c.x:
 312         $(CC) $(XINCS) -E $< >$@
 313 .c:
 314         $(CC) $(XINCS) -o $@ $< $(XLIBS)
 315 .y: ;
 316 !
 317
 318 msg() {
 319    fmt=$1
 320
 321    shift
 322    printf "*** ${fmt}\\n" "${@}"
 323    printf "${fmt}" "${@}" >&5
 324 }
 325
 326 _check_preface() {
 327    variable=$1 topic=$2 define=$3
 328
 329    echo '**********'
 330    msg "checking ${topic} ... "
 331    echo "/* checked ${topic} */" >> ${h}
 332    ${rm} -f ${tmp} ${tmp}.o
 333    echo '*** test program is'
 334    ${tee} ${tmp}.c
 335    #echo '*** the preprocessor generates'
 336    #${make} -f ${makefile} ${tmp}.x
 337    #${cat} ${tmp}.x
 338    echo '*** results are'
 339 }
 340
 341 compile_check() {
 342    variable=$1 topic=$2 define=$3
 343
 344    _check_preface "${variable}" "${topic}" "${define}"
 345
 346    if ${make} -f ${makefile} XINCS="${INCS}" ./${tmp}.o &&
 347          [ -f ./${tmp}.o ]; then
 348       msg "yes\\n"
 349       echo "${define}" >> ${h}
 350       eval have_${variable}=yes
 351       return 0
 352    else
 353       echo "/* ${define} */" >> ${h}
 354       msg "no\\n"
 355       eval unset have_${variable}
 356       return 1
 357    fi
 358 }
 359
 360 _link_mayrun() {
 361    run=$1 variable=$2 topic=$3 define=$4 libs=$5 incs=$6
 362
 363    _check_preface "${variable}" "${topic}" "${define}"
 364
 365    if ${make} -f ${makefile} XINCS="${INCS} ${incs}" \
 366             XLIBS="${LIBS} ${libs}" ./${tmp} &&
 367          [ -f ./${tmp} ] &&
 368          { [ ${run} -eq 0 ] || ./${tmp}; }; then
 369       echo "*** adding INCS<${incs}> LIBS<${libs}>"
 370       msg "yes\\n"
 371       echo "${define}" >> ${h}
 372       LIBS="${LIBS} ${libs}"
 373       echo "${libs}" >> ${lib}
 374       INCS="${INCS} ${incs}"
 375       echo "${incs}" >> ${inc}
 376       eval have_${variable}=yes
 377       return 0
 378    else
 379       msg "no\\n"
 380       echo "/* ${define} */" >> ${h}
 381       eval unset have_${variable}
 382       return 1
 383    fi
 384 }
 385
 386 link_check() {
 387    _link_mayrun 0 "${1}" "${2}" "${3}" "${4}" "${5}"
 388 }
 389
 390 run_check() {
 391    _link_mayrun 1 "${1}" "${2}" "${3}" "${4}" "${5}"
 392 }
 393
 394 # Build a basic set of INCS and LIBS according to user environment.
 395 # On pkgsrc(7) systems automatically add /usr/pkg/*
 396 if [ -n "${C_INCLUDE_PATH}" ]; then
 397    i=${IFS}
 398    IFS=:
 399    set -- ${C_INCLUDE_PATH}
 400    IFS=${i}
 401    # for i; do -- new in POSIX Issue 7 + TC1
 402    for i
 403    do
 404       [ "${i}" = '/usr/pkg/include' ] && continue
 405       INCS="${INCS} -I${i}"
 406    done
 407 fi
 408 [ -d /usr/pkg/include ] && INCS="${INCS} -I/usr/pkg/include"
 409 echo "${INCS}" >> ${inc}
 410
 411 if [ -n "${LD_LIBRARY_PATH}" ]; then
 412    i=${IFS}
 413    IFS=:
 414    set -- ${LD_LIBRARY_PATH}
 415    IFS=${i}
 416    # for i; do -- new in POSIX Issue 7 + TC1
 417    for i
 418    do
 419       [ "${i}" = '/usr/pkg/lib' ] && continue
 420       LIBS="${LIBS} -L${i}"
 421    done
 422 fi
 423 [ -d /usr/pkg/lib ] && LIBS="${LIBS} -L/usr/pkg/lib"
 424 echo "${LIBS}" >> ${lib}
 425
 426 ##
 427
 428 # Better set _GNU_SOURCE (if we are on Linux only?); 'surprised it did without
 429 echo '#define _GNU_SOURCE' >> ${h}
 430
 431 if link_check hello 'if a hello world program can be built' << \!
 432 #include <stdio.h>
 433
 434 int main(int argc, char *argv[])
 435 {
 436    (void)argc;
 437    (void)argv;
 438    puts("hello world");
 439    return 0;
 440 }
 441 !
 442 then
 443    :
 444 else
 445    echo >&5 'This oooops is most certainly not related to me.'
 446    echo >&5 "Read the file ${log} and check your compiler environment."
 447    ${rm} -f ${lst} ${h} ${mk}
 448    exit 1
 449 fi
 450
 451 if link_check termios 'for termios.h and tc*() family' << \!
 452 #include <termios.h>
 453 int main(void)
 454 {
 455    struct termios tios;
 456    tcgetattr(0, &tios);
 457    tcsetattr(0, TCSADRAIN | TCSAFLUSH, &tios);
 458    return 0;
 459 }
 460 !
 461 then
 462    :
 463 else
 464    echo >&5 'We require termios.h and the tc*() family of functions.'
 465    echo >&5 "That much Unix we indulge ourselfs."
 466    ${rm} -f ${lst} ${h} ${mk}
 467    exit 1
 468 fi
 469
 470 link_check setenv 'for setenv()/unsetenv()' '#define HAVE_SETENV' << \!
 471 #include <stdlib.h>
 472 int main(void)
 473 {
 474    setenv("s-nail", "to be made nifty!", 1);
 475    unsetenv("s-nail");
 476    return 0;
 477 }
 478 !
 479
 480 link_check snprintf 'for snprintf()' '#define HAVE_SNPRINTF' << \!
 481 #include <stdio.h>
 482 int main(void)
 483 {
 484    char b[20];
 485    snprintf(b, sizeof b, "%s", "string");
 486    return 0;
 487 }
 488 !
 489
 490 link_check putc_unlocked 'for putc_unlocked()' '#define HAVE_PUTC_UNLOCKED' <<\!
 491 #include <stdio.h>
 492 int main(void)
 493 {
 494    putc_unlocked('@', stdout);
 495    return 0;
 496 }
 497 !
 498
 499 link_check fchdir 'for fchdir()' '#define HAVE_FCHDIR' << \!
 500 #include <unistd.h>
 501 int main(void)
 502 {
 503    fchdir(0);
 504    return 0;
 505 }
 506 !
 507
 508 link_check pipe2 'for pipe2()' '#define HAVE_PIPE2' << \!
 509 #include <fcntl.h>
 510 #include <unistd.h>
 511 int main(void)
 512 {
 513    int fds[2];
 514    pipe2(fds, O_CLOEXEC);
 515    return 0;
 516 }
 517 !
 518
 519 link_check mmap 'for mmap()' '#define HAVE_MMAP' << \!
 520 #include <sys/types.h>
 521 #include <sys/mman.h>
 522 int main(void)
 523 {
 524    mmap(0, 0, 0, 0, 0, 0);
 525    return 0;
 526 }
 527 !
 528
 529 link_check mremap 'for mremap()' '#define HAVE_MREMAP' << \!
 530 #include <sys/types.h>
 531 #include <sys/mman.h>
 532 int main(void)
 533 {
 534    mremap(0, 0, 0, MREMAP_MAYMOVE);
 535    return 0;
 536 }
 537 !
 538
 539 link_check setlocale 'for setlocale()' '#define HAVE_SETLOCALE' << \!
 540 #include <locale.h>
 541 int main(void)
 542 {
 543    setlocale(LC_ALL, "");
 544    return 0;
 545 }
 546 !
 547
 548 if [ "${have_setlocale}" = yes ]; then
 549    link_check c90amend1 'for ISO/IEC 9899:1990/Amendment 1:1995' \
 550       '#define HAVE_C90AMEND1' << \!
 551 #include <limits.h>
 552 #include <stdlib.h>
 553 #include <wchar.h>
 554 #include <wctype.h>
 555 int main(void)
 556 {
 557         char mbb[MB_LEN_MAX + 1];
 558    wchar_t      wc;
 559    iswprint(L'c');
 560    towupper(L'c');
 561    mbtowc(&wc, "x", 1);
 562    mbrtowc(&wc, "x", 1, NULL);
 563         (void)wctomb(mbb, wc);
 564    return (mblen("\0", 1) == 0);
 565 }
 566 !
 567
 568    if [ "${have_c90amend1}" = yes ]; then
 569       link_check wcwidth 'for wcwidth()' '#define HAVE_WCWIDTH' << \!
 570 #include <wchar.h>
 571 int main(void)
 572 {
 573    wcwidth(L'c');
 574    return 0;
 575 }
 576 !
 577    fi
 578
 579    link_check nl_langinfo 'for nl_langinfo()' '#define HAVE_NL_LANGINFO' << \!
 580 #include <langinfo.h>
 581 #include <stdlib.h>
 582 int main(void)
 583 {
 584    nl_langinfo(DAY_1);
 585    return (nl_langinfo(CODESET) == NULL);
 586 }
 587 !
 588 fi # have_setlocale
 589
 590 link_check mkstemp 'for mkstemp()' '#define HAVE_MKSTEMP' << \!
 591 #include <stdlib.h>
 592 int main(void)
 593 {
 594    mkstemp("x");
 595    return 0;
 596 }
 597 !
 598
 599 # Note: run_check, thus we also get only the desired implementation...
 600 run_check realpath 'for realpath()' '#define HAVE_REALPATH' << \!
 601 #include <stdlib.h>
 602 int main(void)
 603 {
 604    char *x = realpath(".", NULL), *y = realpath("/", NULL);
 605    return (x != NULL && y != NULL) ? 0 : 1;
 606 }
 607 !
 608
 609 link_check wordexp 'for wordexp()' '#define HAVE_WORDEXP' << \!
 610 #include <wordexp.h>
 611 int main(void)
 612 {
 613    wordexp((char *)0, (wordexp_t *)0, 0);
 614    return 0;
 615 }
 616 !
 617
 618 ##
 619
 620 if wantfeat DEBUG; then
 621    echo '#define HAVE_DEBUG' >> ${h}
 622 fi
 623
 624 if wantfeat AMALGAMATION; then
 625    echo '#define HAVE_AMALGAMATION' >> ${h}
 626 fi
 627
 628 if nwantfeat NOALLOCA; then
 629    # Due to NetBSD PR lib/47120 it seems best not to use non-cc-builtin
 630    # versions of alloca(3) since modern compilers just can't be trusted
 631    # not to overoptimize and silently break some code
 632    link_check alloca 'for __builtin_alloca()' \
 633       '#define HAVE_ALLOCA __builtin_alloca' << \!
 634 int main(void)
 635 {
 636    void *vp = __builtin_alloca(1);
 637    return (!! vp);
 638 }
 639 !
 640 fi
 641
 642 if wantfeat DEVEL; then
 643    echo '#define HAVE_DEVEL' >> ${h}
 644 fi
 645
 646 if wantfeat NYD2; then
 647    echo '#define HAVE_NYD2' >> ${h}
 648 fi
 649
 650 ##
 651
 652 if wantfeat ICONV; then
 653    ${cat} > ${tmp2}.c << \!
 654 #include <iconv.h>
 655 int main(void)
 656 {
 657    iconv_t      id;
 658
 659    id = iconv_open("foo", "bar");
 660    return 0;
 661 }
 662 !
 663    < ${tmp2}.c link_check iconv 'for iconv functionality' \
 664          '#define HAVE_ICONV' ||
 665       < ${tmp2}.c link_check iconv \
 666          'for iconv functionality in libiconv' \
 667          '#define HAVE_ICONV' '-liconv'
 668 else
 669    echo '/* WANT_ICONV=0 */' >> ${h}
 670 fi # wantfeat ICONV
 671
 672 if wantfeat SOCKETS; then
 673    compile_check arpa_inet_h 'for <arpa/inet.h>' \
 674       '#define HAVE_ARPA_INET_H' << \!
 675 #include "config.h"
 676 #include <sys/types.h>
 677 #include <sys/socket.h>
 678 #include <netdb.h>
 679 #include <netinet/in.h>
 680 #include <arpa/inet.h>
 681 !
 682
 683    ${cat} > ${tmp2}.c << \!
 684 #include "config.h"
 685 #include <sys/types.h>
 686 #include <sys/socket.h>
 687 #include <netdb.h>
 688 #include <netinet/in.h>
 689 #ifdef HAVE_ARPA_INET_H
 690 #include <arpa/inet.h>
 691 #endif
 692
 693 int main(void)
 694 {
 695    struct sockaddr      s;
 696    socket(AF_INET, SOCK_STREAM, 0);
 697    connect(0, &s, 0);
 698    gethostbyname("foo");
 699    return 0;
 700 }
 701 !
 702
 703    < ${tmp2}.c link_check sockets 'for sockets in libc' \
 704          '#define HAVE_SOCKETS' ||
 705       < ${tmp2}.c link_check sockets 'for sockets in libnsl' \
 706          '#define HAVE_SOCKETS' '-lnsl' ||
 707       < ${tmp2}.c link_check sockets \
 708          'for sockets in libsocket and libnsl' \
 709          '#define HAVE_SOCKETS' '-lsocket -lnsl' ||
 710       WANT_SOCKETS=0
 711
 712    # XXX Shouldn't it be a hard error if there is no socket support, then?
 713    option_update
 714 else
 715    echo '/* WANT_SOCKETS=0 */' >> ${h}
 716 fi # wantfeat SOCKETS
 717
 718 wantfeat SOCKETS &&
 719 link_check setsockopt 'for setsockopt()' '#define HAVE_SETSOCKOPT' << \!
 720 #include <sys/socket.h>
 721 #include <stdlib.h>
 722 int main(void)
 723 {
 724    int sockfd = 3;
 725    setsockopt(sockfd, SOL_SOCKET, SO_KEEPALIVE, NULL, 0);
 726    return 0;
 727 }
 728 !
 729
 730 wantfeat SOCKETS && [ -n "${have_setsockopt}" ] &&
 731 link_check so_sndtimeo 'for SO_SNDTIMEO' '#define HAVE_SO_SNDTIMEO' << \!
 732 #include <sys/socket.h>
 733 #include <stdlib.h>
 734 int main(void)
 735 {
 736    struct timeval tv;
 737    int sockfd = 3;
 738    tv.tv_sec = 42;
 739    tv.tv_usec = 21;
 740    setsockopt(sockfd, SOL_SOCKET, SO_SNDTIMEO, &tv, sizeof tv);
 741    setsockopt(sockfd, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof tv);
 742    return 0;
 743 }
 744 !
 745
 746 wantfeat SOCKETS && [ -n "${have_setsockopt}" ] &&
 747 link_check so_linger 'for SO_LINGER' '#define HAVE_SO_LINGER' << \!
 748 #include <sys/socket.h>
 749 #include <stdlib.h>
 750 int main(void)
 751 {
 752    struct linger li;
 753    int sockfd = 3;
 754    li.l_onoff = 1;
 755    li.l_linger = 42;
 756    setsockopt(sockfd, SOL_SOCKET, SO_LINGER, &li, sizeof li);
 757    return 0;
 758 }
 759 !
 760
 761 if wantfeat IPV6; then
 762    link_check ipv6 'for IPv6 functionality' '#define HAVE_IPV6' << \!
 763 #include "config.h"
 764 #include <sys/types.h>
 765 #include <sys/socket.h>
 766 #include <netdb.h>
 767 #include <netinet/in.h>
 768 #ifdef HAVE_ARPA_INET_H
 769 #include <arpa/inet.h>
 770 #endif
 771
 772 int main(void)
 773 {
 774    struct addrinfo      a, *ap;
 775    getaddrinfo("foo", "0", &a, &ap);
 776    return 0;
 777 }
 778 !
 779 else
 780    echo '/* WANT_IPV6=0 */' >> ${h}
 781 fi # wantfeat IPV6
 782
 783 if wantfeat SSL; then
 784    link_check openssl 'for sufficiently recent OpenSSL' \
 785       '#define HAVE_SSL
 786       #define HAVE_OPENSSL' '-lssl -lcrypto' << \!
 787 #include <openssl/ssl.h>
 788 #include <openssl/err.h>
 789 #include <openssl/x509v3.h>
 790 #include <openssl/x509.h>
 791 #include <openssl/rand.h>
 792
 793 #if defined OPENSSL_NO_SSL2 && defined OPENSSL_NO_SSL3 &&\
 794       defined OPENSSL_NO_TLS1
 795 # error We need one of (SSLv2 and) SSLv3 and TLS1.
 796 #endif
 797
 798 int main(void)
 799 {
 800    SSLv23_client_method();
 801 #ifndef OPENSSL_NO_SSL3
 802    SSLv3_client_method();
 803 #endif
 804 #ifndef OPENSSL_NO_TLS1
 805    TLSv1_client_method();
 806 # ifdef TLS1_1_VERSION
 807    TLSv1_1_client_method();
 808 # endif
 809 # ifdef TLS1_2_VERSION
 810    TLSv1_2_client_method();
 811 # endif
 812 #endif
 813    PEM_read_PrivateKey(0, 0, 0, 0);
 814    return 0;
 815 }
 816 !
 817
 818    if [ "${have_openssl}" = 'yes' ]; then
 819       compile_check stack_of 'for OpenSSL STACK_OF()' \
 820          '#define HAVE_OPENSSL_STACK_OF' << \!
 821 #include <openssl/ssl.h>
 822 #include <openssl/err.h>
 823 #include <openssl/x509v3.h>
 824 #include <openssl/x509.h>
 825 #include <openssl/rand.h>
 826
 827 int main(void)
 828 {
 829    STACK_OF(GENERAL_NAME) *gens = NULL;
 830    printf("%p", gens);  /* to make it used */
 831    return 0;
 832 }
 833 !
 834
 835       link_check rand_egd 'for OpenSSL RAND_egd()' \
 836          '#define HAVE_OPENSSL_RAND_EGD' '-lssl -lcrypto' << \!
 837 #include <openssl/rand.h>
 838
 839 int main(void)
 840 {
 841    return RAND_egd("some.where") > 0;
 842 }
 843 !
 844
 845       if wantfeat MD5 && nwantfeat NOEXTMD5; then
 846          run_check openssl_md5 'for MD5 digest in OpenSSL' \
 847          '#define HAVE_OPENSSL_MD5' << \!
 848 #include <string.h>
 849 #include <openssl/md5.h>
 850
 851 int main(void)
 852 {
 853    char const dat[] = "abrakadabrafidibus";
 854    char dig[16], hex[16 * 2];
 855    MD5_CTX ctx;
 856    size_t i, j;
 857
 858    memset(dig, 0, sizeof(dig));
 859    memset(hex, 0, sizeof(hex));
 860    MD5_Init(&ctx);
 861    MD5_Update(&ctx, dat, sizeof(dat) - 1);
 862    MD5_Final(dig, &ctx);
 863
 864 #define hexchar(n) ((n) > 9 ? (n) - 10 + 'a' : (n) + '0')
 865    for (i = 0; i < sizeof(hex) / 2; i++) {
 866       j = i << 1;
 867       hex[j] = hexchar((dig[i] & 0xf0) >> 4);
 868       hex[++j] = hexchar(dig[i] & 0x0f);
 869    }
 870    return !!memcmp("6d7d0a3d949da2e96f2aa010f65d8326", hex, sizeof(hex));
 871 }
 872 !
 873       fi # wantfeat MD5 && nwantfeat NOEXTMD5
 874    fi
 875 else
 876    echo '/* WANT_SSL=0 */' >> ${h}
 877 fi # wantfeat SSL
 878
 879 if wantfeat SMTP; then
 880    echo '#define HAVE_SMTP' >> ${h}
 881 else
 882    echo '/* WANT_SMTP=0 */' >> ${h}
 883 fi
 884
 885 if wantfeat POP3; then
 886    echo '#define HAVE_POP3' >> ${h}
 887 else
 888    echo '/* WANT_POP3=0 */' >> ${h}
 889 fi
 890
 891 if wantfeat IMAP; then
 892    echo '#define HAVE_IMAP' >> ${h}
 893 else
 894    echo '/* WANT_IMAP=0 */' >> ${h}
 895 fi
 896
 897 if wantfeat GSSAPI; then
 898    ${cat} > ${tmp2}.c << \!
 899 #include <gssapi/gssapi.h>
 900
 901 int main(void)
 902 {
 903    gss_import_name(0, 0, GSS_C_NT_HOSTBASED_SERVICE, 0);
 904    gss_init_sec_context(0,0,0,0,0,0,0,0,0,0,0,0,0);
 905    return 0;
 906 }
 907 !
 908    ${sed} -e '1s/gssapi\///' < ${tmp2}.c > ${tmp3}.c
 909
 910    if command -v krb5-config >/dev/null 2>&1; then
 911       i=`command -v krb5-config`
 912       GSS_LIBS="`CFLAGS= ${i} --libs gssapi`"
 913       GSS_INCS="`CFLAGS= ${i} --cflags`"
 914       i='for GSS-API via krb5-config(1)'
 915    else
 916       GSS_LIBS='-lgssapi'
 917       GSS_INCS=
 918       i='for GSS-API in gssapi/gssapi.h, libgssapi'
 919    fi
 920    < ${tmp2}.c link_check gss \
 921          "${i}" '#define HAVE_GSSAPI' "${GSS_LIBS}" "${GSS_INCS}" ||\
 922       < ${tmp3}.c link_check gss \
 923          'for GSS-API in gssapi.h, libgssapi' \
 924          '#define HAVE_GSSAPI
 925          #define GSSAPI_REG_INCLUDE' \
 926          '-lgssapi' ||\
 927       < ${tmp2}.c link_check gss 'for GSS-API in libgssapi_krb5' \
 928          '#define HAVE_GSSAPI' \
 929          '-lgssapi_krb5' ||\
 930       < ${tmp3}.c link_check gss \
 931          'for GSS-API in libgssapi, OpenBSD-style (pre 5.3)' \
 932          '#define HAVE_GSSAPI
 933          #define GSS_REG_INCLUDE' \
 934          '-lgssapi -lkrb5 -lcrypto' \
 935          '-I/usr/include/kerberosV' ||\
 936       < ${tmp2}.c link_check gss 'for GSS-API in libgss' \
 937          '#define HAVE_GSSAPI' \
 938          '-lgss' ||\
 939       link_check gss 'for GSS-API in libgssapi_krb5, old-style' \
 940          '#define HAVE_GSSAPI
 941          #define GSSAPI_OLD_STYLE' \
 942          '-lgssapi_krb5' << \!
 943 #include <gssapi/gssapi.h>
 944 #include <gssapi/gssapi_generic.h>
 945
 946 int main(void)
 947 {
 948    gss_import_name(0, 0, gss_nt_service_name, 0);
 949    gss_init_sec_context(0,0,0,0,0,0,0,0,0,0,0,0,0);
 950    return 0;
 951 }
 952 !
 953 else
 954    echo '/* WANT_GSSAPI=0 */' >> ${h}
 955 fi # wantfeat GSSAPI
 956
 957 if wantfeat NETRC; then
 958    echo '#define HAVE_NETRC' >> ${h}
 959 else
 960    echo '/* WANT_NETRC=0 */' >> ${h}
 961 fi
 962
 963 if wantfeat AGENT; then
 964    echo '#define HAVE_AGENT' >> ${h}
 965 else
 966    echo '/* WANT_AGENT=0 */' >> ${h}
 967 fi
 968
 969 if wantfeat IDNA; then
 970    link_check idna 'for GNU Libidn' '#define HAVE_IDNA' '-lidn' << \!
 971 #include <idna.h>
 972 #include <idn-free.h>
 973 #include <stringprep.h>
 974 int main(void)
 975 {
 976    char *utf8, *idna_ascii, *idna_utf8;
 977    utf8 = stringprep_locale_to_utf8("does.this.work");
 978    if (idna_to_ascii_8z(utf8, &idna_ascii, IDNA_USE_STD3_ASCII_RULES)
 979          != IDNA_SUCCESS)
 980       return 1;
 981    idn_free(idna_ascii);
 982    /* (Rather link check only here) */
 983    idna_utf8 = stringprep_convert(idna_ascii, "UTF-8", "de_DE");
 984    return 0;
 985 }
 986 !
 987 else
 988    echo '/* WANT_IDNA=0 */' >> ${h}
 989 fi
 990
 991 if wantfeat IMAP_SEARCH; then
 992    echo '#define HAVE_IMAP_SEARCH' >> ${h}
 993 else
 994    echo '/* WANT_IMAP_SEARCH=0 */' >> ${h}
 995 fi
 996
 997 if wantfeat REGEX; then
 998    link_check regex 'for regular expressions' '#define HAVE_REGEX' << \!
 999 #include <regex.h>
1000 #include <stdlib.h>
1001 int main(void)
1002 {
1003    int status;
1004    regex_t re;
1005    if (regcomp(&re, ".*bsd", REG_EXTENDED | REG_ICASE | REG_NOSUB) != 0)
1006       return 1;
1007    status = regexec(&re, "plan9", 0,NULL, 0);
1008    regfree(&re);
1009    return !(status == REG_NOMATCH);
1010 }
1011 !
1012 else
1013    echo '/* WANT_REGEX=0 */' >> ${h}
1014 fi
1015
1016 if wantfeat READLINE; then
1017    __edrdlib() {
1018       link_check readline "for readline(3) (${1})" \
1019          '#define HAVE_READLINE' "${1}" << \!
1020 #include <stdio.h>
1021 #include <readline/history.h>
1022 #include <readline/readline.h>
1023 int main(void)
1024 {
1025    char *rl;
1026    HISTORY_STATE *hs;
1027    HIST_ENTRY **he;
1028    int i;
1029    using_history();
1030    read_history("");
1031    stifle_history(242);
1032    rl = readline("Enter a line:");
1033    if (rl && *rl)
1034       add_history(rl);
1035    write_history("");
1036    rl_extend_line_buffer(10);
1037    rl_point = rl_end = 10;
1038    rl_pre_input_hook = (rl_hook_func_t*)NULL;
1039    rl_forced_update_display();
1040    clear_history();
1041    hs = history_get_history_state();
1042    i = hs->length;
1043    he = history_list();
1044    if (i > 0)
1045       rl = he[0]->line;
1046    rl_free_line_state();
1047    rl_cleanup_after_signal();
1048    rl_reset_after_signal();
1049    return 0;
1050 }
1051 !
1052    }
1053
1054    __edrdlib -lreadline ||
1055       __edrdlib '-lreadline -ltermcap'
1056    [ -n "${have_readline}" ] && WANT_TABEXPAND=1
1057 fi
1058
1059 if wantfeat EDITLINE && [ -z "${have_readline}" ]; then
1060    __edlib() {
1061       link_check editline "for editline(3) (${1})" \
1062          '#define HAVE_EDITLINE' "${1}" << \!
1063 #include <histedit.h>
1064 static char * getprompt(void) { return (char*)"ok"; }
1065 int main(void)
1066 {
1067    EditLine *el_el = el_init("TEST", stdin, stdout, stderr);
1068    HistEvent he;
1069    History *el_hcom = history_init();
1070    history(el_hcom, &he, H_SETSIZE, 242);
1071    el_set(el_el, EL_SIGNAL, 0);
1072    el_set(el_el, EL_TERMINAL, NULL);
1073    el_set(el_el, EL_HIST, &history, el_hcom);
1074    el_set(el_el, EL_EDITOR, "emacs");
1075    el_set(el_el, EL_PROMPT, &getprompt);
1076    el_source(el_el, NULL);
1077    history(el_hcom, &he, H_GETSIZE);
1078    history(el_hcom, &he, H_CLEAR);
1079    el_end(el_el);
1080    /* TODO add loader and addfn checks */
1081    history_end(el_hcom);
1082    return 0;
1083 }
1084 !
1085    }
1086
1087    __edlib -ledit ||
1088       __edlib '-ledit -ltermcap'
1089    [ -n "${have_editline}" ] && WANT_TABEXPAND=0
1090 fi
1091
1092 if wantfeat NCL && [ -z "${have_editline}" ] && [ -z "${have_readline}" ] &&\
1093       [ -n "${have_c90amend1}" ]; then
1094    have_ncl=1
1095    echo '#define HAVE_NCL' >> ${h}
1096 else
1097    echo '/* WANT_{READLINE,EDITLINE,NCL}=0 */' >> ${h}
1098 fi
1099
1100 # Generic have-a-command-line-editor switch for those who need it below
1101 if [ -n "${have_ncl}" ] || [ -n "${have_editline}" ] ||\
1102       [ -n "${have_readline}" ]; then
1103    have_cle=1
1104 fi
1105
1106 if [ -n "${have_cle}" ] && wantfeat HISTORY; then
1107    echo '#define HAVE_HISTORY' >> ${h}
1108 else
1109    echo '/* WANT_HISTORY=0 */' >> ${h}
1110 fi
1111
1112 if [ -n "${have_cle}" ] && wantfeat TABEXPAND; then
1113    echo '#define HAVE_TABEXPAND' >> ${h}
1114 else
1115    echo '/* WANT_TABEXPAND=0 */' >> ${h}
1116 fi
1117
1118 if wantfeat SPAM; then
1119    echo '#define HAVE_SPAM' >> ${h}
1120    if command -v spamc >/dev/null 2>&1; then
1121       echo "#define SPAMC_PATH \"`command -v spamc`\"" >> ${h}
1122    fi
1123 else
1124    echo '/* WANT_SPAM=0 */' >> ${h}
1125 fi
1126
1127 if wantfeat DOCSTRINGS; then
1128    echo '#define HAVE_DOCSTRINGS' >> ${h}
1129 else
1130    echo '/* WANT_DOCSTRINGS=0 */' >> ${h}
1131 fi
1132
1133 if wantfeat QUOTE_FOLD &&\
1134       [ -n "${have_c90amend1}" ] && [ -n "${have_wcwidth}" ]; then
1135    echo '#define HAVE_QUOTE_FOLD' >> ${h}
1136 else
1137    echo '/* WANT_QUOTE_FOLD=0 */' >> ${h}
1138 fi
1139
1140 if wantfeat COLOUR; then
1141    echo '#define HAVE_COLOUR' >> ${h}
1142 else
1143    echo '/* WANT_COLOUR=0 */' >> ${h}
1144 fi
1145
1146 if wantfeat MD5; then
1147    echo '#define HAVE_MD5' >> ${h}
1148 else
1149    echo '/* WANT_MD5=0 */' >> ${h}
1150 fi
1151
1152 ## Summarizing ##
1153
1154 # Since we cat(1) the content of those to cc/"ld", convert them to single line
1155 squeeze_em() {
1156    < "${1}" > "${2}" ${awk} \
1157    'BEGIN {ORS = " "} /^[^#]/ {print} {next} END {ORS = ""; print "\n"}'
1158 }
1159 ${rm} -f ${tmp}
1160 squeeze_em ${inc} ${tmp}
1161 ${mv} ${tmp} ${inc}
1162 squeeze_em ${lib} ${tmp}
1163 ${mv} ${tmp} ${lib}
1164
1165 # config.h
1166 ${mv} ${h} ${tmp}
1167 printf '#ifndef _CONFIG_H\n# define _CONFIG_H\n' > ${h}
1168 ${cat} ${tmp} >> ${h}
1169
1170 printf '\n/* The "feature string", for "simplicity" and lex.c */\n' >> ${h}
1171 printf '#ifdef _MAIN_SOURCE\n' >> ${h}
1172 printf '# ifdef HAVE_AMALGAMATION\nstatic\n# endif\n' >> ${h}
1173 printf 'char const features[] = "MIME"\n' >> ${h}
1174 printf '# ifdef HAVE_SETLOCALE\n   ",LOCALES"\n# endif\n' >> ${h}
1175 printf '# ifdef HAVE_C90AMEND1\n   ",MULTIBYTE CHARSETS"\n# endif\n' >> ${h}
1176 printf '# ifdef HAVE_NL_LANGINFO\n   ",TERMINAL CHARSET"\n# endif\n' >> ${h}
1177 printf '# ifdef HAVE_ICONV\n   ",ICONV"\n# endif\n' >> ${h}
1178 printf '# ifdef HAVE_SOCKETS\n   ",NETWORK"\n# endif\n' >> ${h}
1179 printf '# ifdef HAVE_IPV6\n   ",IPv6"\n# endif\n' >> ${h}
1180 printf '# ifdef HAVE_SSL\n   ",S/MIME,SSL/TLS"\n# endif\n' >> ${h}
1181 printf '# ifdef HAVE_SMTP\n   ",SMTP"\n# endif\n' >> ${h}
1182 printf '# ifdef HAVE_POP3\n   ",POP3"\n# endif\n' >> ${h}
1183 printf '# ifdef HAVE_IMAP\n   ",IMAP"\n# endif\n' >> ${h}
1184 printf '# ifdef HAVE_GSSAPI\n   ",GSS-API"\n# endif\n' >> ${h}
1185 printf '# ifdef HAVE_NETRC\n   ",NETRC"\n# endif\n' >> ${h}
1186 printf '# ifdef HAVE_AGENT\n   ",AGENT"\n# endif\n' >> ${h}
1187 printf '# ifdef HAVE_IDNA\n   ",IDNA"\n# endif\n' >> ${h}
1188 printf '# ifdef HAVE_IMAP_SEARCH\n   ",IMAP-searches"\n# endif\n' >> ${h}
1189 printf '# ifdef HAVE_REGEX\n   ",REGEX"\n# endif\n' >> ${h}
1190 printf '# ifdef HAVE_READLINE\n   ",READLINE"\n# endif\n' >> ${h}
1191 printf '# ifdef HAVE_EDITLINE\n   ",EDITLINE"\n# endif\n' >> ${h}
1192 printf '# ifdef HAVE_NCL\n   ",NCL"\n# endif\n' >> ${h}
1193 printf '# ifdef HAVE_TABEXPAND\n   ",TABEXPAND"\n# endif\n' >> ${h}
1194 printf '# ifdef HAVE_HISTORY\n   ",HISTORY"\n# endif\n' >> ${h}
1195 printf '# ifdef HAVE_SPAM\n   ",SPAM"\n# endif\n' >> ${h}
1196 printf '# ifdef HAVE_DOCSTRINGS\n   ",DOCSTRINGS"\n# endif\n' >> ${h}
1197 printf '# ifdef HAVE_QUOTE_FOLD\n   ",QUOTE-FOLD"\n# endif\n' >> ${h}
1198 printf '# ifdef HAVE_COLOUR\n   ",COLOUR"\n# endif\n' >> ${h}
1199 printf '# ifdef HAVE_DEBUG\n   ",DEBUG"\n# endif\n' >> ${h}
1200 printf ';\n#endif /* _MAIN_SOURCE */\n' >> ${h}
1201
1202 printf '#endif /* _CONFIG_H */\n' >> ${h}
1203 ${rm} -f ${tmp}
1204
1205 # Create the real mk.mk
1206 ${rm} -rf ${tmp0}.* ${tmp0}*
1207 printf 'OBJ_SRC = ' >> ${mk}
1208 if nwantfeat AMALGAMATION; then
1209    echo *.c >> ${mk}
1210    echo 'OBJ_DEP =' >> ${mk}
1211 else
1212    j=`echo "${src}" | sed 's/^.\///'`
1213    echo "${j}" >> ${mk}
1214    printf 'OBJ_DEP = main.c ' >> ${mk}
1215    printf '#define _MAIN_SOURCE\n' >> ${src}
1216    printf '#include "nail.h"\n#include "main.c"\n' >> ${src}
1217    for i in *.c; do
1218       if [ "${i}" = "${j}" ] || [ "${i}" = main.c ]; then
1219          continue
1220       fi
1221       printf "${i} " >> ${mk}
1222       printf "#include \"${i}\"\n" >> ${src}
1223    done
1224    echo >> ${mk}
1225 fi
1226
1227 echo "LIBS = `${cat} ${lib}`" >> ${mk}
1228 echo "INCLUDES = `${cat} ${inc}`" >> ${mk}
1229 echo >> ${mk}
1230 ${cat} ./mk-mk.in >> ${mk}
1231
1232 ## Finished! ##
1233
1234 ${cat} > ${tmp2}.c << \!
1235 #include "config.h"
1236 #ifdef HAVE_NL_LANGINFO
1237 # include <langinfo.h>
1238 #endif
1239 :
1240 :The following optional features are enabled:
1241 #ifdef HAVE_SETLOCALE
1242 : + Locale support: Printable characters depend on the environment
1243 # ifdef HAVE_C90AMEND1
1244 : + Multibyte character support
1245 # endif
1246 # ifdef HAVE_NL_LANGINFO
1247 : + Automatic detection of terminal character set
1248 # endif
1249 #endif
1250 #ifdef HAVE_ICONV
1251 : + Character set conversion using iconv()
1252 #endif
1253 #ifdef HAVE_SOCKETS
1254 : + Network support
1255 #endif
1256 #ifdef HAVE_IPV6
1257 : + Support for Internet Protocol v6 (IPv6)
1258 #endif
1259 #ifdef HAVE_SSL
1260 # ifdef HAVE_OPENSSL
1261 : + S/MIME and SSL/TLS (OpenSSL)
1262 # endif
1263 #endif
1264 #ifdef HAVE_SMTP
1265 : + SMTP protocol
1266 #endif
1267 #ifdef HAVE_POP3
1268 : + POP3 protocol
1269 #endif
1270 #ifdef HAVE_IMAP
1271 : + IMAP protocol
1272 #endif
1273 #ifdef HAVE_GSSAPI
1274 : + GSS-API authentication
1275 #endif
1276 #ifdef HAVE_NETRC
1277 : + .netrc file support
1278 #endif
1279 #ifdef HAVE_AGENT
1280 : + Password query through agent
1281 #endif
1282 #ifdef HAVE_IDNA
1283 : + IDNA (internationalized domain names for applications) support
1284 #endif
1285 #ifdef HAVE_IMAP_SEARCH
1286 : + IMAP-style search expressions
1287 #endif
1288 #ifdef HAVE_REGEX
1289 : + Regular expression support (searches, conditional expressions etc.)
1290 #endif
1291 #if defined HAVE_READLINE || defined HAVE_EDITLINE || defined HAVE_NCL
1292 : + Command line editing
1293 # ifdef HAVE_TABEXPAND
1294 : + + Tabulator expansion
1295 # endif
1296 # ifdef HAVE_HISTORY
1297 : + + History management
1298 # endif
1299 #endif
1300 #ifdef HAVE_SPAM
1301 : + Interaction with spam filters
1302 #endif
1303 #ifdef HAVE_DOCSTRINGS
1304 : + Documentation summary strings
1305 #endif
1306 #ifdef HAVE_QUOTE_FOLD
1307 : + Extended *quote-fold*ing
1308 #endif
1309 #ifdef HAVE_COLOUR
1310 : + Coloured message display (simple)
1311 #endif
1312 :
1313 :The following optional features are disabled:
1314 #ifndef HAVE_SETLOCALE
1315 : - Locale support: Only ASCII characters are recognized
1316 #endif
1317 # ifndef HAVE_C90AMEND1
1318 : - Multibyte character support
1319 # endif
1320 # ifndef HAVE_NL_LANGINFO
1321 : - Automatic detection of terminal character set
1322 # endif
1323 #ifndef HAVE_ICONV
1324 : - Character set conversion using iconv()
1325 #endif
1326 #ifndef HAVE_SOCKETS
1327 : - Network support
1328 #endif
1329 #ifndef HAVE_IPV6
1330 : - Support for Internet Protocol v6 (IPv6)
1331 #endif
1332 #ifndef HAVE_SSL
1333 : - S/MIME and SSL/TLS
1334 #endif
1335 #ifndef HAVE_SMTP
1336 : - SMTP protocol
1337 #endif
1338 #ifndef HAVE_POP3
1339 : - POP3 protocol
1340 #endif
1341 #ifndef HAVE_IMAP
1342 : - IMAP protocol
1343 #endif
1344 #ifndef HAVE_GSSAPI
1345 : - GSS-API authentication
1346 #endif
1347 #ifndef HAVE_NETRC
1348 : - .netrc file support
1349 #endif
1350 #ifndef HAVE_AGENT
1351 : - Password query through agent
1352 #endif
1353 #ifndef HAVE_IDNA
1354 : - IDNA (internationalized domain names for applications) support
1355 #endif
1356 #ifndef HAVE_IMAP_SEARCH
1357 : - IMAP-style search expressions
1358 #endif
1359 #ifndef HAVE_REGEX
1360 : - Regular expression support
1361 #endif
1362 #if !defined HAVE_READLINE && !defined HAVE_EDITLINE && !defined HAVE_NCL
1363 : - Command line editing and history
1364 #endif
1365 #ifndef HAVE_SPAM
1366 : - Interaction with spam filters
1367 #endif
1368 #ifndef HAVE_DOCSTRINGS
1369 : - Documentation summary strings
1370 #endif
1371 #ifndef HAVE_QUOTE_FOLD
1372 : - Extended *quote-fold*ing
1373 #endif
1374 #ifndef HAVE_COLOUR
1375 : - Coloured message display (simple)
1376 #endif
1377 :
1378 :Remarks:
1379 #ifndef HAVE_SNPRINTF
1380 : . The function snprintf() could not be found. We will use and internal
1381 : sprintf() instead. This might overflow buffers if input values are larger
1382 : than expected. Use the resulting binary with care or update your system
1383 : environment and start the configuration process again.
1384 #endif
1385 #ifndef HAVE_FCHDIR
1386 : . The function fchdir() could not be found. We will use chdir()
1387 : instead. This is not a problem unless the current working
1388 : directory of mailx is moved while the IMAP cache is used.
1389 #endif
1390 #ifdef HAVE_DEBUG
1391 : . Debug enabled binary: not meant to be used by end-users: THANKS!
1392 #endif
1393 :
1394 !
1395
1396 ${make} -f ${makefile} ${tmp2}.x
1397 < ${tmp2}.x >&5 ${sed} -e '/^[^:]/d; /^$/d; s/^://'
1398
1399 # s-it-mode