configure.ac

   1 # Process this file with autoconf to produce a configure script.
   2
   3 AC_PREREQ([2.69])
   4 AC_INIT([got-portable], [0.64], [thomas@xteddy.org])
   5 AC_CONFIG_AUX_DIR(etc)
   6 AC_CONFIG_SRCDIR([lib/rcsutil.h])
   7 AM_INIT_AUTOMAKE([foreign subdir-objects])
   8
   9 GOT_RELEASE=No
  10
  11 AC_DEFINE_UNQUOTED(VERSION, "$VERSION")
  12 AC_SUBST(VERSION)
  13 AC_SUBST(GOT_RELEASE)
  14
  15 AC_CANONICAL_HOST
  16
  17 # When CFLAGS isn't set at this stage and gcc is detected by the macro below,
  18 # autoconf will automatically use CFLAGS="-O2 -g". Prevent that by using an
  19 # empty default.
  20 : ${CFLAGS=""}
  21
  22 # Save user CPPFLAGS, CFLAGS and LDFLAGS. We need to change them because
  23 # AC_CHECK_HEADER doesn't give us any other way to update the include
  24 # paths. But for Makefile.am we want to use AM_CPPFLAGS and friends.
  25 SAVED_CFLAGS="$CFLAGS"
  26 SAVED_CPPFLAGS="$CPPFLAGS"
  27 SAVED_LDFLAGS="$LDFLAGS"
  28
  29 # Checks for programs.
  30 AC_PROG_CC
  31 AC_PROG_CPP
  32 AC_PROG_INSTALL
  33 AC_PROG_LN_S
  34 AC_PROG_MAKE_SET
  35 AC_PROG_YACC
  36 AC_PROG_RANLIB
  37 PKG_PROG_PKG_CONFIG
  38 AC_USE_SYSTEM_EXTENSIONS
  39
  40 # Checks for header files.
  41 AC_CHECK_HEADERS([ \
  42         fcntl.h \
  43         langinfo.h \
  44         limits.h \
  45         locale.h \
  46         netdb.h \
  47         netinet/in.h \
  48         paths.h \
  49         stddef.h \
  50         stdint.h \
  51         stdlib.h \
  52         string.h \
  53         sys/ioctl.h \
  54         sys/param.h \
  55         sys/socket.h \
  56         sys/time.h \
  57         sys/tree.h \
  58         util.h \
  59         unistd.h \
  60         wchar.h \
  61 ])
  62
  63 # Checks for typ edefs, structures, and compiler characteristics.
  64 AC_CHECK_HEADER_STDBOOL
  65 AC_C_INLINE
  66 AC_TYPE_INT64_T
  67 AC_TYPE_MODE_T
  68 AC_TYPE_OFF_T
  69 AC_TYPE_PID_T
  70 AC_TYPE_SIZE_T
  71 AC_TYPE_SSIZE_T
  72 AC_TYPE_UINT16_T
  73 AC_TYPE_UINT32_T
  74 AC_TYPE_UINT64_T
  75 AC_TYPE_UINT8_T
  76
  77 # Look for library needed for flock.
  78 AC_SEARCH_LIBS(flock, bsd)
  79
  80 # Checks for library functions.
  81 AC_FUNC_FORK
  82 AC_FUNC_FSEEKO
  83 AC_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK
  84 AC_FUNC_MALLOC
  85 AC_FUNC_MMAP
  86 AC_FUNC_REALLOC
  87 AC_FUNC_STRERROR_R
  88 AC_FUNC_STRNLEN
  89 AC_CHECK_FUNCS([ \
  90         dup2 \
  91         flock \
  92         getcwd \
  93         localtime_r \
  94         memchr \
  95         memmove \
  96         memset \
  97         mkdir \
  98         munmap \
  99         nl_langinfo \
 100         realpath \
 101         regcomp \
 102         rmdir \
 103         setlocale \
 104         socket \
 105         strcasecmp \
 106         strchr \
 107         strcspn \
 108         strdup \
 109         strerror \
 110         strlcpy \
 111         strncasecmp \
 112         strndup \
 113         strrchr \
 114         strspn \
 115         strstr \
 116         strtol \
 117         strtoul \
 118         wcwidth \
 119 ])
 120
 121 # Check for functions with a compatibility implementation.
 122 AC_REPLACE_FUNCS([ \
 123         asprintf \
 124         closefrom \
 125         explicit_bzero \
 126         fmt_scaled \
 127         freezero \
 128         getdtablecount \
 129         getline \
 130         getprogname \
 131         recallocarray \
 132         reallocarray \
 133         strlcat \
 134         strlcpy \
 135         strndup \
 136         strsep \
 137         strtonum \
 138 ])
 139
 140 # Always use our getopt because 1) glibc's doesn't enforce argument order 2)
 141 # musl does not set optarg to NULL for flags without arguments (although it is
 142 # not required to, but it is helpful) 3) there are probably other weird
 143 # implementations.
 144 AC_LIBOBJ(getopt)
 145
 146 # Check the platform we're compiling on.
 147 AC_MSG_CHECKING(platform)
 148 case "$host_os" in
 149         *linux*)
 150                 AC_MSG_RESULT(linux)
 151                 PLATFORM=linux
 152                 ;;
 153         *freebsd*)
 154                 AC_MSG_RESULT(freebsd)
 155                 PLATFORM=freebsd
 156                 ;;
 157         *)
 158                 AC_MSG_RESULT(unknown)
 159                 PLATFORM=unknown
 160                 ;;
 161 esac
 162 AC_SUBST(PLATFORM)
 163 AM_CONDITIONAL([HOST_FREEBSD], [test "$PLATFORM" = "freebsd"])
 164 AM_CONDITIONAL([HOST_LINUX], [test "$PLATFORM" = "linux"])
 165
 166 # Clang sanitizers wrap reallocarray even if it isn't available on the target
 167 # system. When compiled it always returns NULL and crashes the program. To
 168 # detect this we need a more complicated test.
 169 AC_MSG_CHECKING([for working reallocarray])
 170 AC_RUN_IFELSE([AC_LANG_PROGRAM(
 171                 [#include <stdlib.h>],
 172                 [return (reallocarray(NULL, 1, 1) == NULL);]
 173         )],
 174         AC_MSG_RESULT(yes),
 175         [AC_LIBOBJ(reallocarray) AC_MSG_RESULT([no])]
 176 )
 177 AC_MSG_CHECKING([for working recallocarray])
 178 AC_RUN_IFELSE([AC_LANG_PROGRAM(
 179                 [#include <stdlib.h>],
 180                 [return (recallocarray(NULL, 1, 1, 1) == NULL);]
 181         )],
 182         AC_MSG_RESULT(yes),
 183         [AC_LIBOBJ(recallocarray) AC_MSG_RESULT([no])]
 184 )
 185
 186 # Look for imsg_init in libutil.
 187 AC_SEARCH_LIBS(imsg_init, util, found_imsg_init=yes, found_imsg_init=no)
 188 if test "x$found_imsg_init" = xyes; then
 189         AC_DEFINE(HAVE_IMSG)
 190 else
 191         AC_LIBOBJ(imsg)
 192         AC_LIBOBJ(imsg-buffer)
 193 fi
 194
 195 # libcrypto (via libssl for SHA information)
 196 PKG_CHECK_MODULES(
 197         LIBCRYPTO,
 198         libcrypto,
 199         [
 200                 AM_CFLAGS="$LIBCRYPTO_CFLAGS $AM_CFLAGS"
 201                 CFLAGS="$AM_CFLAGS $SAVED_CFLAGS"
 202                 LIBS="$LIBCRYPTO_LIBS $LIBS"
 203                 found_libcrypto=yes
 204         ],
 205         [
 206                 found_libcrypto=no
 207         ]
 208 )
 209
 210 if test "x$found_libcrypto" = "xyes"; then
 211         AC_DEFINE(HAVE_LIBCRYPTO)
 212 fi
 213
 214 AC_SEARCH_LIBS(uuid_create, , AC_DEFINE(HAVE_BSD_UUID))
 215 AC_SEARCH_LIBS(uuid_create, found_uuid=no, found_uuid=yes)
 216 AC_SEARCH_LIBS(mergesort, , AC_DEFINE(HAVE_BSD_MERGESORT))
 217
 218 if test "x$found_uuid" = "xyes"; then
 219         AC_DEFINE(HAVE_BSD_UUID)
 220 else
 221         PKG_CHECK_MODULES(
 222                 LIBUUID,
 223                 uuid,
 224                 [
 225                         AM_CFLAGS="$LIBUUID_CFLAGS $AM_CFLAGS"
 226                         CFLAGS="$AM_CFLAGS $SAVED_CFLAGS"
 227                         LIBS="$LIBUUID_LIBS $LIBS"
 228                         found_libuuid=yes
 229                 ],
 230                 [
 231                         found_libuuid=no
 232                 ]
 233         )
 234
 235         if test "x$found_libuuid" = "xno"; then
 236                 AC_CHECK_HEADER(
 237                         uuid.h,
 238                         found_libuuid=yes,
 239                         found_libuuid=no)
 240         fi
 241 fi
 242
 243 if test "x$found_libuuid" = "xno"; then
 244         AC_MSG_ERROR("*** couldn't find uuid ***")
 245 fi
 246
 247 PKG_CHECK_MODULES(
 248         ZLIB,
 249         zlib,
 250         [
 251                 AM_CFLAGS="$ZLIB_CFLAGS $AM_CFLAGS"
 252                 CFLAGS="$AM_CFLAGS $SAVED_CFLAGS"
 253                 LIBS="$ZLIB_LIBS $LIBS"
 254                 found_zlib=yes
 255         ],
 256         [
 257                 found_zlib=no
 258         ]
 259 )
 260
 261 if test "x$found_zlib" = "xno"; then
 262         AC_CHECK_HEADER(
 263                 zlib.h,
 264                 ,
 265                 found_zlib=no)
 266 fi
 267
 268 if test "x$found_zlib" = "xno"; then
 269         AC_MSG_ERROR("*** couldn't find zlib ***")
 270 fi
 271
 272 if test "$PLATFORM" = "linux"; then
 273         PKG_CHECK_MODULES(
 274                 LIBMD,
 275                 libmd,
 276                 [
 277                         AM_CFLAGS="$LIBMD_CFLAGS $AM_CFLAGS"
 278                         CFLAGS="$AM_CFLAGS $SAVED_CFLAGS"
 279                         LIBS="$LIBMD_LIBS $LIBS"
 280                 ],
 281                 [
 282                         AC_MSG_ERROR("*** couldn't find libmd via pkg-config")
 283                 ]
 284         )
 285         PKG_CHECK_MODULES(
 286                 LIBBSD,
 287                 libbsd-overlay,
 288                 [
 289                         AM_CFLAGS="$LIBBSD_CFLAGS $AM_CFLAGS"
 290                         CFLAGS="$AM_CFLAGS $SAVED_CFLAGS"
 291                         LIBS="$LIBBSD_LIBS $LIBS"
 292                         found_libbsd=yes
 293                         AC_DEFINE(HAVE_LIBBSD)
 294                 ],
 295                 []
 296         )
 297 fi
 298
 299 # Look for a suitable queue.h.  We hope libbsd is enough, but that is missing
 300 # SIMPLEQ.
 301 AC_CHECK_DECL(
 302         SIMPLEQ_INIT,
 303         found_queue_h=yes,
 304         found_queue_h=no,
 305         [#include <sys/queue.h>]
 306 )
 307 AC_CHECK_DECL(
 308         TAILQ_CONCAT,
 309         found_queue_h=yes,
 310         found_queue_h=no,
 311         [#include <sys/queue.h>]
 312 )
 313 AC_CHECK_DECL(
 314         TAILQ_PREV,
 315         found_queue_h=yes,
 316         found_queue_h=no,
 317         [#include <sys/queue.h>]
 318 )
 319 AC_CHECK_DECL(
 320         TAILQ_REPLACE,
 321         found_queue_h=yes,
 322         found_queue_h=no,
 323         [#include <sys/queue.h>]
 324 )
 325 AC_CHECK_DECL(
 326         SIMPLEQ_ENTRY,
 327         ,
 328         found_queue_h=no,
 329         [#include <sys/queue.h>]
 330 )
 331 AC_CHECK_DECL(
 332         TAILQ_FOREACH_SAFE,
 333         ,
 334         found_queue_h=no,
 335         [#include <sys/queue.h>]
 336 )
 337 if test "x$found_queue_h" = xyes; then
 338         AC_DEFINE(HAVE_QUEUE_H)
 339 fi
 340
 341 # Look for __progname.
 342 AC_MSG_CHECKING(for __progname)
 343 AC_LINK_IFELSE([AC_LANG_SOURCE(
 344         [
 345                 #include <stdio.h>
 346                 #include <stdlib.h>
 347                 extern char *__progname;
 348                 int main(void) {
 349                         const char *cp = __progname;
 350                         printf("%s\n", cp);
 351                         exit(0);
 352                 }
 353         ])],
 354         [AC_DEFINE(HAVE___PROGNAME) AC_MSG_RESULT(yes)],
 355         AC_MSG_RESULT(no)
 356 )
 357
 358 if test "$PLATFORM" = "linux"; then
 359         PKG_CHECK_MODULES(
 360                 LIBPANELW,
 361                 panelw,
 362                 found_panel=yes,
 363                 AC_MSG_ERROR("*** couldn't find -lpanel from ncurses")
 364         )
 365 else
 366         AC_CHECK_LIB(panelw, update_panels,,
 367                 AC_MSG_ERROR([ "*** panelw not found for ncurses. ***"])
 368         )
 369
 370         LIBPANELW_LIBS="-lpanelw"
 371 fi
 372
 373 PKG_CHECK_MODULES(
 374         LIBNCURSES,
 375         ncursesw,
 376         found_ncurses=yes,
 377         found_ncurses=no
 378 )
 379 if test "x$found_ncurses" = xyes; then
 380         AM_CFLAGS="$LIBNCURSES_CFLAGS $LIBTINFO_CFLAGS $LIBPANELW_CFLAGS $AM_CFLAGS"
 381         CFLAGS="$LIBNCURSES_CFLAGS $LIBTINFO_CFLAGS $LIBPANELW_CFLAGS $CFLAGS"
 382         LIBS="$LIBNCURSES_LIBS $LIBTINFO_LIBS $LIBPANELW_LIBS $LIBS"
 383 else
 384         AC_CHECK_LIB(
 385                 ncursesw,
 386                 setupterm,
 387                 found_ncurses=yes,
 388                 found_ncurses=no
 389         )
 390         if test "x$found_ncurses" = xyes; then
 391                 AC_CHECK_HEADER(
 392                         ncurses.h,
 393                         AM_CFLAGS="$LIBPANELW_CFLAGS $AM_CFLAGS"
 394                         CFLAGS="$LIBPANEL_CFLAGS $CFLAGS"
 395                         LIBS="$LIBS -lncursesw $LIBPANELW_LIBS",
 396                         found_ncurses=no
 397                 )
 398         fi
 399 fi
 400 if test "x$found_ncurses" = xyes; then
 401         AC_DEFINE(HAVE_NCURSES_H)
 402 else
 403         # No ncurses, try curses.
 404         AC_CHECK_LIB(
 405                 cursesw,
 406                 setupterm,
 407                 found_curses=yes,
 408                 found_curses=no
 409         )
 410         AC_CHECK_HEADER(
 411                 curses.h,
 412                 ,
 413                 found_curses=no)
 414         if test "x$found_curses" = xyes; then
 415                 AM_CFLAGS="$LIBPANELW_CFLAGS $AM_CFLAGS"
 416                 CFLAGS="$LIBPANEL_CFLAGS $CFLAGS"
 417                 LIBS="$LIBS -lcursesw $LIBPANELW_LIBS"
 418                 AC_DEFINE(HAVE_CURSES_H)
 419         else
 420                 AC_MSG_ERROR("curses not found")
 421         fi
 422 fi
 423
 424 # Save our CFLAGS/CPPFLAGS/LDFLAGS for the Makefile and restore the old user
 425 # variables.
 426 AC_SUBST(AM_CPPFLAGS)
 427 CPPFLAGS="$SAVED_CPPFLAGS"
 428 AC_SUBST(AM_CFLAGS)
 429 CFLAGS="$SAVED_CFLAGS"
 430 AC_SUBST(AM_LDFLAGS)
 431 LDFLAGS="$SAVED_LDFLAGS"
 432
 433 AC_CONFIG_FILES([Makefile
 434                  compat/Makefile
 435                  libexec/Makefile
 436                  libexec/got-read-tree/Makefile
 437                  libexec/got-fetch-pack/Makefile
 438                  libexec/got-index-pack/Makefile
 439                  libexec/got-read-blob/Makefile
 440                  libexec/got-read-commit/Makefile
 441                  libexec/got-read-gitconfig/Makefile
 442                  libexec/got-read-gotconfig/Makefile
 443                  libexec/got-read-object/Makefile
 444                  libexec/got-read-pack/Makefile
 445                  libexec/got-read-tag/Makefile
 446                  libexec/got-send-pack/Makefile
 447                  got/Makefile
 448                  gotadmin/Makefile
 449                  tog/Makefile
 450                  Makefile.common:Makefile.common.in])
 451 AC_OUTPUT
 452
 453 #                tog/GNUMakefile])
 454 #                regress/GNUMakefile
 455 #                regress/cmdline/GNUMakefile
 456 #                regress/delta/GNUMakefile
 457 #                regress/fetch/GNUMakefile
 458 #                regress/idset/GNUMakefile
 459 #                regress/path/GNUMakefile
 460 #                 gotweb/GNUMakefile
 461 #                 gotweb/libexec/GNUMakefile
 462 #                 gotweb/libexec/got-read-blob/GNUMakefile
 463 #                 gotweb/libexec/got-read-commit/GNUMakefile
 464 #                 gotweb/libexec/got-read-gitconfig/GNUMakefile
 465 #                 gotweb/libexec/got-read-gotconfig/GNUMakefile
 466 #                 gotweb/libexec/got-read-object/GNUMakefile
 467 #                 gotweb/libexec/got-read-pack/GNUMakefile
 468 #                 gotweb/libexec/got-read-tag/GNUMakefile
 469 #                 gotweb/libexec/got-read-tree/GNUMakefile