configure.ac

   1 # Process this file with autoconf to produce a configure script.
   2
   3 AC_PREREQ([2.69])
   4 AC_INIT([got-portable], [0.47], [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 # Clang sanitizers wrap reallocarray even if it isn't available on the target
 147 # system. When compiled it always returns NULL and crashes the program. To
 148 # detect this we need a more complicated test.
 149 AC_MSG_CHECKING([for working reallocarray])
 150 AC_RUN_IFELSE([AC_LANG_PROGRAM(
 151                 [#include <stdlib.h>],
 152                 [return (reallocarray(NULL, 1, 1) == NULL);]
 153         )],
 154         AC_MSG_RESULT(yes),
 155         [AC_LIBOBJ(reallocarray) AC_MSG_RESULT([no])]
 156 )
 157 AC_MSG_CHECKING([for working recallocarray])
 158 AC_RUN_IFELSE([AC_LANG_PROGRAM(
 159                 [#include <stdlib.h>],
 160                 [return (recallocarray(NULL, 1, 1, 1) == NULL);]
 161         )],
 162         AC_MSG_RESULT(yes),
 163         [AC_LIBOBJ(recallocarray) AC_MSG_RESULT([no])]
 164 )
 165
 166 # Look for imsg_init in libutil.
 167 AC_SEARCH_LIBS(imsg_init, util, found_imsg_init=yes, found_imsg_init=no)
 168 if test "x$found_imsg_init" = xyes; then
 169         AC_DEFINE(HAVE_IMSG)
 170 else
 171         AC_LIBOBJ(imsg)
 172         AC_LIBOBJ(imsg-buffer)
 173 fi
 174
 175 # libcrypto (via libssl for SHA information)
 176 PKG_CHECK_MODULES(
 177         LIBCRYPTO,
 178         libcrypto,
 179         [
 180                 AM_CFLAGS="$LIBCRYTPO_CFLAGS $AM_CFLAGS"
 181                 CFLAGS="$AM_CFLAGS $SAVED_CFLAGS"
 182                 LIBS="$LIBCRYPTO_LIBS $LIBS"
 183                 found_libcrypto=yes
 184         ],
 185         [
 186                 AC_MSG_ERROR("*** couldn't find libcrypto via pkg-config")
 187         ]
 188 )
 189
 190 AC_SEARCH_LIBS(uuid_create, , AC_DEFINE(HAVE_BSD_UUID))
 191 AC_SEARCH_LIBS(mergesort, , AC_DEFINE(HAVE_BSD_MERGESORT))
 192
 193 PKG_CHECK_MODULES(
 194         LIBUUID,
 195         uuid,
 196         [
 197                 AM_CFLAGS="$LIBUUID_CFLAGS $AM_CFLAGS"
 198                 CFLAGS="$AM_CFLAGS $SAVED_CFLAGS"
 199                 LIBS="$LIBUUID_LIBS $LIBS"
 200                 found_libuuid=yes
 201         ],
 202         [
 203                 AC_MSG_ERROR("*** couldn't find libuuid via pkg-config")
 204         ]
 205 )
 206
 207
 208 PKG_CHECK_MODULES(
 209         ZLIB,
 210         zlib,
 211         [
 212                 AM_CFLAGS="$ZLIB_CFLAGS $AM_CFLAGS"
 213                 CFLAGS="$AM_CFLAGS $SAVED_CFLAGS"
 214                 LIBS="$ZLIB_LIBS $LIBS"
 215                 found_zlib=yes
 216         ],
 217         [
 218                 AC_MSG_ERROR("*** couldn't find zlib via pkg-config")
 219         ]
 220 )
 221
 222 PKG_CHECK_MODULES(
 223         LIBMD,
 224         libmd,
 225         [
 226                 AM_CFLAGS="$LIBMD_CFLAGS $AM_CFLAGS"
 227                 CFLAGS="$AM_CFLAGS $SAVED_CFLAGS"
 228                 LIBS="$LIBMD_LIBS $LIBS"
 229         ],
 230         [
 231                 AC_MSG_ERROR("*** couldn't find libmd via pkg-config")
 232         ]
 233 )
 234 # libmd (uuid)
 235 # imsg
 236 # libbsd (some portability gloop)
 237 # lssl
 238 # lz
 239 # ldl *
 240 # rdynamic *
 241
 242 # Check if libbsd is installed -- if we can use that version of sys/tree.h or
 243 # our own if not.
 244 PKG_CHECK_MODULES(
 245         LIBBSD,
 246         libbsd-overlay,
 247         [
 248                 AM_CFLAGS="$LIBBSD_CFLAGS $AM_CFLAGS"
 249                 CFLAGS="$AM_CFLAGS $SAVED_CFLAGS"
 250                 LIBS="$LIBBSD_LIBS $LIBS"
 251                 found_libbsd=yes
 252                 AC_DEFINE(HAVE_LIBBSD)
 253         ],
 254         []
 255 )
 256
 257 # Look for a suitable queue.h.  We hope libbsd is enough, but that is missing
 258 # SIMPLEQ.
 259 AC_CHECK_DECL(
 260         SIMPLEQ_INIT,
 261         found_queue_h=yes,
 262         found_queue_h=no,
 263         [#include <sys/queue.h>]
 264 )
 265 AC_CHECK_DECL(
 266         TAILQ_CONCAT,
 267         found_queue_h=yes,
 268         found_queue_h=no,
 269         [#include <sys/queue.h>]
 270 )
 271 AC_CHECK_DECL(
 272         TAILQ_PREV,
 273         found_queue_h=yes,
 274         found_queue_h=no,
 275         [#include <sys/queue.h>]
 276 )
 277 AC_CHECK_DECL(
 278         TAILQ_REPLACE,
 279         found_queue_h=yes,
 280         found_queue_h=no,
 281         [#include <sys/queue.h>]
 282 )
 283 AC_CHECK_DECL(
 284         SIMPLEQ_ENTRY,
 285         ,
 286         found_queue_h=no,
 287         [#include <sys/queue.h>]
 288 )
 289 AC_CHECK_DECL(
 290         TAILQ_FOREACH_SAFE,
 291         ,
 292         found_queue_h=no,
 293         [#include <sys/queue.h>]
 294 )
 295 if test "x$found_queue_h" = xyes; then
 296         AC_DEFINE(HAVE_QUEUE_H)
 297 fi
 298
 299 # Look for __progname.
 300 AC_MSG_CHECKING(for __progname)
 301 AC_LINK_IFELSE([AC_LANG_SOURCE(
 302         [
 303                 #include <stdio.h>
 304                 #include <stdlib.h>
 305                 extern char *__progname;
 306                 int main(void) {
 307                         const char *cp = __progname;
 308                         printf("%s\n", cp);
 309                         exit(0);
 310                 }
 311         ])],
 312         [AC_DEFINE(HAVE___PROGNAME) AC_MSG_RESULT(yes)],
 313         AC_MSG_RESULT(no)
 314 )
 315
 316 PKG_CHECK_MODULES(
 317         LIBPANELW,
 318         panelw,
 319         found_panel=yes,
 320         AC_MSG_ERROR("*** couldn't find -lpanel from ncurses")
 321 )
 322
 323 PKG_CHECK_MODULES(
 324         LIBNCURSES,
 325         ncursesw,
 326         found_ncurses=yes,
 327         found_ncurses=no
 328 )
 329 if test "x$found_ncurses" = xyes; then
 330         AM_CFLAGS="$LIBNCURSES_CFLAGS $LIBTINFO_CFLAGS $LIBPANELW_CFLAGS $AM_CFLAGS"
 331         CFLAGS="$LIBNCURSES_CFLAGS $LIBTINFO_CFLAGS $LIBPANELW_CFLAGS $CFLAGS"
 332         LIBS="$LIBNCURSES_LIBS $LIBTINFO_LIBS $LIBPANELW_LIBS $LIBS"
 333 else
 334         AC_CHECK_LIB(
 335                 ncursesw,
 336                 setupterm,
 337                 found_ncurses=yes,
 338                 found_ncurses=no
 339         )
 340         if test "x$found_ncurses" = xyes; then
 341                 AC_CHECK_HEADER(
 342                         ncurses.h,
 343                         AM_CFLAGS="$LIBPANELW_CFLAGS $AM_CFLAGS"
 344                         CFLAGS="$LIBPANEL_CFLAGS $CFLAGS"
 345                         LIBS="$LIBS -lncursesw $LIBPANELW_LIBS",
 346                         found_ncurses=no
 347                 )
 348                 fi
 349 fi
 350 if test "x$found_ncurses" = xyes; then
 351         AC_DEFINE(HAVE_NCURSES_H)
 352 else
 353         # No ncurses, try curses.
 354         AC_CHECK_LIB(
 355                 cursesw,
 356                 setupterm,
 357                 found_curses=yes,
 358                 found_curses=no
 359         )
 360         AC_CHECK_HEADER(
 361                 curses.h,
 362                 ,
 363                 found_curses=no)
 364         if test "x$found_curses" = xyes; then
 365                 AM_CFLAGS="$LIBPANELW_CFLAGS $AM_CFLAGS"
 366                 CFLAGS="$LIBPANEL_CFLAGS $CFLAGS"
 367                 LIBS="$LIBS -lcursesw $LIBPANELW_LIBS"
 368                 AC_DEFINE(HAVE_CURSES_H)
 369         else
 370                 AC_MSG_ERROR("curses not found")
 371         fi
 372 fi
 373
 374 # Save our CFLAGS/CPPFLAGS/LDFLAGS for the Makefile and restore the old user
 375 # variables.
 376 AC_SUBST(AM_CPPFLAGS)
 377 CPPFLAGS="$SAVED_CPPFLAGS"
 378 AC_SUBST(AM_CFLAGS)
 379 CFLAGS="$SAVED_CFLAGS"
 380 AC_SUBST(AM_LDFLAGS)
 381 LDFLAGS="$SAVED_LDFLAGS"
 382
 383 AC_CONFIG_FILES([Makefile
 384                  compat/Makefile
 385                  libexec/Makefile
 386                  libexec/got-read-tree/Makefile
 387                  libexec/got-fetch-pack/Makefile
 388                  libexec/got-index-pack/Makefile
 389                  libexec/got-read-blob/Makefile
 390                  libexec/got-read-commit/Makefile
 391                  libexec/got-read-gitconfig/Makefile
 392                  libexec/got-read-gotconfig/Makefile
 393                  libexec/got-read-object/Makefile
 394                  libexec/got-read-pack/Makefile
 395                  libexec/got-read-tag/Makefile
 396                  libexec/got-send-pack/Makefile
 397                  got/Makefile
 398                  gotadmin/Makefile
 399                  tog/Makefile])
 400 AC_OUTPUT
 401
 402 #                tog/GNUMakefile])
 403 #                regress/GNUMakefile
 404 #                regress/cmdline/GNUMakefile
 405 #                regress/delta/GNUMakefile
 406 #                regress/fetch/GNUMakefile
 407 #                regress/idset/GNUMakefile
 408 #                regress/path/GNUMakefile
 409 #                 gotweb/GNUMakefile
 410 #                 gotweb/libexec/GNUMakefile
 411 #                 gotweb/libexec/got-read-blob/GNUMakefile
 412 #                 gotweb/libexec/got-read-commit/GNUMakefile
 413 #                 gotweb/libexec/got-read-gitconfig/GNUMakefile
 414 #                 gotweb/libexec/got-read-gotconfig/GNUMakefile
 415 #                 gotweb/libexec/got-read-object/GNUMakefile
 416 #                 gotweb/libexec/got-read-pack/GNUMakefile
 417 #                 gotweb/libexec/got-read-tag/GNUMakefile
 418 #                 gotweb/libexec/got-read-tree/GNUMakefile