libcitadel/configure.in

   1 dnl   configuration script for libcitadel
   2 dnl   Process this file with autoconf to produce a configure script.
   3 dnl
   4
   5 dnl Ensure that libcitadel is configured with autoconf 2.52 or newer
   6 AC_PREREQ(2.52)
   7
   8 AC_INIT(libcitadel, 2.8.13, http://uncensored.citadel.org)
   9
  10 AC_CONFIG_SRCDIR(Makefile.in)
  11 AC_CONFIG_AUX_DIR(conftools)
  12 AC_CONFIG_SRCDIR(tests/Makefile.in)
  13
  14 dnl
  15 dnl Increment LIBREVISION if source code has changed at all
  16 dnl
  17 dnl If the API has changed, increment LIBCURRENT and set LIBREVISION to 0
  18 dnl
  19 dnl If the API changes compatibly (i.e. simply adding a new function
  20 dnl without changing or removing earlier interfaces), then increment LIBAGE.
  21 dnl
  22 dnl If the API changes incompatibly set LIBAGE back to 0
  23 dnl
  24
  25 LIBCURRENT=2
  26 LIBREVISION=813
  27 LIBAGE=0
  28
  29 sinclude(conftools/libtool.m4)
  30 sinclude(conftools/ac_c_bigendian_cross.m4)
  31
  32 AC_PROG_LIBTOOL
  33
  34 AC_SUBST(LIBCURRENT)
  35 AC_SUBST(LIBREVISION)
  36 AC_SUBST(LIBAGE)
  37
  38 dnl Checks for programs.
  39 AC_PROG_CC
  40 AC_PROG_INSTALL
  41
  42 if test "$GCC" = yes ; then
  43     dnl
  44     dnl Be careful about adding the -fexceptions option; some versions of
  45     dnl GCC don't support it and it causes extra warnings that are only
  46     dnl distracting; avoid.
  47     dnl
  48     OLDCFLAGS="$CFLAGS -Wall -Wmissing-prototypes -Wstrict-prototypes"
  49     CFLAGS="$OLDCFLAGS -fexceptions"
  50     AC_MSG_CHECKING(whether $CC accepts -fexceptions)
  51     AC_TRY_LINK( , ,
  52                    AC_MSG_RESULT(yes),
  53                    AC_MSG_RESULT(no); CFLAGS="$OLDCFLAGS")
  54     CXXFLAGS=`echo "$CFLAGS" | sed 's/ -Wmissing-prototypes -Wstrict-prototypes//'`
  55 fi
  56
  57 dnl Checks for header files.
  58 AC_HEADER_STDC
  59
  60 AC_CHECK_HEADER(sys/mman.h, [CFLAGS="$CFLAGS -D HAVE_MMAP"])
  61 AC_ARG_WITH(with_zlib,    [  --with-zlib             use zlib compression if present])
  62 dnl Checks for the zlib compression library.
  63 if test "x$with_zlib" != xno ; then
  64         AC_CHECK_HEADERS(zlib.h,
  65                 [AC_CHECK_LIB(z, zlibVersion,
  66                         [ok_zlib=yes],,
  67         )])
  68 fi
  69
  70 if test "x$ok_zlib" = xyes ; then
  71         LIBS="-lz $LIBS"
  72         AC_DEFINE(HAVE_ZLIB,[],[whether we have zlib])
  73 fi
  74
  75 AC_CHECK_HEADER(CUnit/CUnit.h, [AC_DEFINE(ENABLE_TESTS, [], [whether we should compile the test-suite])])
  76
  77 AC_CHECK_HEADER(sys/sendfile.h, [AC_DEFINE(LINUX_SENDFILE, [], [whether we have the linux sendfile api])])
  78 dnl TODO: we might need to check for the actual syntax....
  79
  80
  81 AC_MSG_CHECKING([whether your system knows about splice()])
  82 AC_TRY_COMPILE([
  83 #define _GNU_SOURCE
  84 #include <unistd.h>
  85 #include <fcntl.h>
  86 ],
  87 [
  88         ssize_t sent, pipesize;
  89         int fd, SplicePipe[2];
  90         pipesize = splice(fd, NULL,
  91                           SplicePipe[1], NULL,
  92                           1,
  93                           SPLICE_F_MORE | SPLICE_F_MOVE|SPLICE_F_NONBLOCK);
  94 ],
  95                 [
  96                   ok_splice=yes
  97                   AC_DEFINE(LINUX_SPLICE, [], [whether we have the linux splice api])
  98                   AC_MSG_RESULT([yes])
  99                 ],
 100                 [
 101                   ok_splice=no
 102                   AC_MSG_RESULT([no])
 103                 ]
 104 )
 105
 106
 107 AC_CHECK_HEADERS(iconv.h)
 108
 109
 110 dnl Here is the check for a libc integrated iconv
 111 AC_ARG_ENABLE(iconv,
 112         [  --disable-iconv         do not use iconv charset conversion],
 113         ok_iconv=no, ok_iconv=yes)
 114
 115 AC_MSG_CHECKING(Checking to see if your system supports iconv)
 116 AC_TRY_RUN([
 117         #include <iconv.h>
 118         main() {
 119                 iconv_t ic = (iconv_t)(-1) ;
 120                 ic = iconv_open("UTF-8", "us-ascii");
 121                 iconv_close(ic);
 122                 exit(0);
 123         }
 124  ],
 125                 [
 126                   ok_iconv=yes
 127                   AC_MSG_RESULT([yes])
 128                 ],
 129                 [
 130                   ok_iconv=no
 131                   AC_MSG_RESULT([no])
 132                 ]
 133 )
 134
 135 dnl Check for iconv in external libiconv
 136 if test "$ok_iconv" = no; then
 137         AC_MSG_CHECKING(Checking for an external libiconv)
 138         OLD_LDFLAGS="$LDFLAGS"
 139         LDFLAGS="$LDFLAGS -liconv"
 140         AC_TRY_RUN([
 141                         #include <iconv.h>
 142                         main() {
 143                                 iconv_t ic = (iconv_t)(-1) ;
 144                                 ic = iconv_open("UTF-8", "us-ascii");
 145                                 iconv_close(ic);
 146                         }
 147                 ],
 148                         [
 149                           ok_iconv=yes
 150                           AC_MSG_RESULT([yes])
 151                         ],
 152                         [
 153                           ok_iconv=no
 154                           LDFLAGS="$OLD_LDFLAGS"
 155                           AC_MSG_RESULT([no])
 156                         ]
 157                 )
 158 fi
 159 if test "$ok_iconv" != "no"; then
 160         AC_MSG_RESULT(libcitadel will be built with character set conversion.)
 161         AC_DEFINE(HAVE_ICONV,[],[whether we have iconv for charset conversion])
 162 else
 163         AC_MSG_RESULT(libcitadel will be built without character set conversion.)
 164 fi
 165
 166 dnl disable backtrace if we don't want it.
 167 AC_ARG_WITH(backtrace,
 168                     [  --with-backtrace          enable backtrace dumps in the syslog],
 169                         [ if test "x$withval" != "xno" ; then
 170                              CFLAGS="$CFLAGS  -rdynamic "
 171                              LDFLAGS="$LDFLAGS  -rdynamic "
 172                              AC_CHECK_FUNCS(backtrace)
 173                           fi
 174                         ]
 175 )
 176
 177
 178 AC_ARG_WITH(with_zlib,    [  --with-zlib             use zlib compression if present])
 179 dnl Checks for the zlib compression library.
 180 if test "x$with_zlib" != xno ; then
 181         AC_CHECK_HEADERS(zlib.h,
 182                 [AC_CHECK_LIB(z, zlibVersion,
 183                         [ok_zlib=yes],,
 184         )])
 185 fi
 186
 187 if test "x$ok_zlib" = xyes ; then
 188         LIBS="-lz $LIBS"
 189         AC_DEFINE(HAVE_ZLIB,[],[whether we have zlib])
 190 fi
 191
 192
 193 dnl Checks for typedefs, structures, and compiler characteristics.
 194
 195 AC_SUBST(LIBS)
 196 AC_C_CONST
 197 AC_TYPE_SIZE_T
 198 AC_CHECK_FUNCS(memmove bcopy)
 199
 200 AC_CONFIG_FILES(Makefile libcitadel.pc tests/Makefile)
 201 AC_CONFIG_HEADER(sysdep.h)
 202 AC_OUTPUT
 203
 204 abs_srcdir="`cd $srcdir && pwd`"
 205 abs_builddir="`pwd`"
 206 if test "$abs_srcdir" != "$abs_builddir"; then
 207   make mkdir-init
 208 fi
 209 echo 'zlib compression:                ' $ok_zlib
 210 echo 'Character set conversion support:' $ok_iconv