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 AC_INIT([libcitadel], m4_esyscmd_s([grep LIBCITADEL_VERSION lib/libcitadel.h | sed 's/[^0-9]*//g' ]),[http://uncensored.citadel.org])
   8 AC_CONFIG_SRCDIR(Makefile.in)
   9 AC_CONFIG_AUX_DIR(conftools)
  10
  11 dnl
  12 dnl Set LIBREVISION to the ever-ascending libcitadel version number.
  13 dnl
  14 dnl If the API has changed, increment LIBCURRENT.
  15 dnl
  16 dnl Set LIBAGE to 0.
  17 dnl
  18
  19 LIBCURRENT=4
  20 LIBREVISION=m4_esyscmd_s([grep LIBCITADEL_VERSION lib/libcitadel.h | sed 's/[^0-9]*//g' ])
  21 LIBAGE=0
  22
  23 sinclude(conftools/libtool.m4)
  24 sinclude(conftools/ac_c_bigendian_cross.m4)
  25
  26 AC_PROG_LIBTOOL
  27
  28 AC_SUBST(LIBCURRENT)
  29 AC_SUBST(LIBREVISION)
  30 AC_SUBST(LIBAGE)
  31
  32 dnl Checks for programs.
  33 AC_PROG_CC
  34 AC_PROG_INSTALL
  35
  36 if test "$GCC" = yes ; then
  37     dnl
  38     dnl Be careful about adding the -fexceptions option; some versions of
  39     dnl GCC don't support it and it causes extra warnings that are only
  40     dnl distracting; avoid.
  41     dnl
  42     OLDCFLAGS="$CFLAGS -Wall -Wmissing-prototypes -Wstrict-prototypes"
  43     CFLAGS="$OLDCFLAGS -fexceptions"
  44     AC_MSG_CHECKING(whether $CC accepts -fexceptions)
  45     AC_TRY_LINK( , ,
  46                    AC_MSG_RESULT(yes),
  47                    AC_MSG_RESULT(no); CFLAGS="$OLDCFLAGS")
  48     CXXFLAGS=`echo "$CFLAGS" | sed 's/ -Wmissing-prototypes -Wstrict-prototypes//'`
  49 fi
  50
  51 dnl Checks for header files.
  52 AC_HEADER_STDC
  53
  54 AC_CHECK_HEADER(sys/mman.h, [CFLAGS="$CFLAGS -D HAVE_MMAP"])
  55 AC_ARG_WITH(with_zlib,    [  --with-zlib             use zlib compression if present])
  56 dnl Checks for the zlib compression library.
  57 if test "x$with_zlib" != xno ; then
  58         AC_CHECK_HEADERS(zlib.h,
  59                 [AC_CHECK_LIB(z, zlibVersion,
  60                         [ok_zlib=yes],,
  61         )])
  62 fi
  63
  64 if test "x$ok_zlib" = xyes ; then
  65         LIBS="-lz $LIBS"
  66         AC_DEFINE(HAVE_ZLIB,[],[whether we have zlib])
  67 fi
  68
  69 AC_CHECK_HEADER(CUnit/CUnit.h, [AC_DEFINE(ENABLE_TESTS, [], [whether we should compile the test-suite])])
  70
  71 AC_CHECK_HEADER(sys/sendfile.h, [AC_DEFINE(LINUX_SENDFILE, [], [whether we have the linux sendfile api])])
  72 dnl TODO: we might need to check for the actual syntax....
  73
  74
  75 AC_MSG_CHECKING([whether your system knows about splice()])
  76 AC_TRY_COMPILE([
  77 #define _GNU_SOURCE
  78 #include <unistd.h>
  79 #include <fcntl.h>
  80 ],
  81 [
  82         ssize_t sent, pipesize;
  83         int fd, SplicePipe[2];
  84         pipesize = splice(fd, NULL,
  85                           SplicePipe[1], NULL,
  86                           1,
  87                           SPLICE_F_MORE | SPLICE_F_MOVE|SPLICE_F_NONBLOCK);
  88 ],
  89                 [
  90                   ok_splice=yes
  91                   AC_DEFINE(LINUX_SPLICE, [], [whether we have the linux splice api])
  92                   AC_MSG_RESULT([yes])
  93                 ],
  94                 [
  95                   ok_splice=no
  96                   AC_MSG_RESULT([no])
  97                 ]
  98 )
  99
 100 AC_MSG_CHECKING([whether your system likes memcpy + HKEY])
 101 AC_TRY_COMPILE([
 102 #define _GNU_SOURCE
 103 #include <ctype.h>
 104 #include <errno.h>
 105 #include <string.h>
 106 #include <unistd.h>
 107 #include <string.h>
 108 #include <stdio.h>
 109 #include <sys/select.h>
 110 #include <fcntl.h>
 111 #include <sys/types.h>
 112
 113 #include "lib/libcitadel.h"
 114 ],
 115 [
 116         char foo[22];
 117         memcpy(foo, HKEY("foo"));
 118
 119 ],
 120                 [
 121
 122                   AC_MSG_RESULT([yes])
 123                 ],
 124                 [
 125                   AC_DEFINE(UNDEF_MEMCPY, [], [whether we need to undefine memcpy])
 126                   AC_MSG_RESULT([no])
 127                 ]
 128 )
 129
 130
 131 AC_CHECK_HEADERS(iconv.h)
 132
 133
 134 dnl Here is the check for a libc integrated iconv
 135 AC_ARG_ENABLE(iconv,
 136         [  --disable-iconv         do not use iconv charset conversion],
 137         ok_iconv=no, ok_iconv=yes)
 138
 139 AC_MSG_CHECKING(Checking to see if your system supports iconv)
 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                 exit(0);
 147         }
 148  ],
 149                 [
 150                   ok_iconv=yes
 151                   AC_MSG_RESULT([yes])
 152                 ],
 153                 [
 154                   ok_iconv=no
 155                   AC_MSG_RESULT([no])
 156                 ]
 157 )
 158
 159 dnl Check for iconv in external libiconv
 160 if test "$ok_iconv" = no; then
 161         AC_MSG_CHECKING(Checking for an external libiconv)
 162         OLD_LDFLAGS="$LDFLAGS"
 163         LDFLAGS="$LDFLAGS -liconv"
 164         AC_TRY_RUN([
 165                         #include <iconv.h>
 166                         main() {
 167                                 iconv_t ic = (iconv_t)(-1) ;
 168                                 ic = iconv_open("UTF-8", "us-ascii");
 169                                 iconv_close(ic);
 170                         }
 171                 ],
 172                         [
 173                           ok_iconv=yes
 174                           AC_MSG_RESULT([yes])
 175                         ],
 176                         [
 177                           ok_iconv=no
 178                           LDFLAGS="$OLD_LDFLAGS"
 179                           AC_MSG_RESULT([no])
 180                         ]
 181                 )
 182 fi
 183 if test "$ok_iconv" != "no"; then
 184         AC_MSG_RESULT(libcitadel will be built with character set conversion.)
 185         AC_DEFINE(HAVE_ICONV,[],[whether we have iconv for charset conversion])
 186 else
 187         AC_MSG_RESULT(libcitadel will be built without character set conversion.)
 188 fi
 189
 190 dnl disable backtrace if we don't want it.
 191 AC_ARG_WITH(backtrace,
 192                     [  --with-backtrace          enable backtrace dumps in the syslog],
 193                         [ if test "x$withval" != "xno" ; then
 194                              CFLAGS="$CFLAGS  -rdynamic "
 195                              LDFLAGS="$LDFLAGS  -rdynamic "
 196                              AC_CHECK_FUNCS(backtrace)
 197                           fi
 198                         ]
 199 )
 200
 201
 202 AC_ARG_WITH(with_zlib,    [  --with-zlib             use zlib compression if present])
 203 dnl Checks for the zlib compression library.
 204 if test "x$with_zlib" != xno ; then
 205         AC_CHECK_HEADERS(zlib.h,
 206                 [AC_CHECK_LIB(z, zlibVersion,
 207                         [ok_zlib=yes],,
 208         )])
 209 fi
 210
 211 if test "x$ok_zlib" = xyes ; then
 212         LIBS="-lz $LIBS"
 213         AC_DEFINE(HAVE_ZLIB,[],[whether we have zlib])
 214 fi
 215
 216
 217 dnl Checks for typedefs, structures, and compiler characteristics.
 218
 219 AC_SUBST(LIBS)
 220 AC_C_CONST
 221 AC_TYPE_SIZE_T
 222 AC_CHECK_FUNCS(memmove bcopy)
 223
 224 AC_CONFIG_FILES(Makefile libcitadel.pc)
 225 AC_CONFIG_HEADER(sysdep.h)
 226 AC_OUTPUT
 227
 228 abs_srcdir="`cd $srcdir && pwd`"
 229 abs_builddir="`pwd`"
 230 if test "$abs_srcdir" != "$abs_builddir"; then
 231   make mkdir-init
 232 fi
 233 echo 'zlib compression:                ' $ok_zlib
 234 echo 'Character set conversion support:' $ok_iconv