libphobos/m4/druntime/libraries.m4

   1 #
   2 # Contains macros to handle library dependencies.
   3 #
   4
   5
   6 # DRUNTIME_LIBRARIES_DLOPEN
   7 # -----------------------
   8 # Autodetect and add dl library to LIBS if necessary.
   9 AC_DEFUN([DRUNTIME_LIBRARIES_DLOPEN],
  10 [
  11   # Libtool has already checked this, so re-use the inferred dlopen lib.
  12   AS_IF([test "x$enable_dlopen" = "xyes" && test -n "$lt_cv_dlopen_libs"], [
  13     LIBS="$LIBS $lt_cv_dlopen_libs"
  14   ], [
  15   ])
  16 ])
  17
  18
  19 # DRUNTIME_LIBRARIES_NET
  20 # -----------------------
  21 # Autodetect and add networking library to LIBS if necessary.
  22 AC_DEFUN([DRUNTIME_LIBRARIES_NET],
  23 [
  24   dnl Check for the existence of the -lsocket and -lnsl libraries.
  25   dnl The order here is important, so that they end up in the right
  26   dnl order in the command line generated by make.  Here are some
  27   dnl special considerations:
  28   dnl 1. Use "connect" and "accept" to check for -lsocket, and
  29   dnl    "gethostbyname" to check for -lnsl.
  30   dnl 2. Use each function name only once:  can't redo a check because
  31   dnl    autoconf caches the results of the last check and won't redo it.
  32   dnl 3. Use -lnsl and -lsocket only if they supply procedures that
  33   dnl    aren't already present in the normal libraries.
  34   dnl 4. On some systems, can't use -lsocket without -lnsl too.
  35   dnl    To get around this problem, check for both libraries together
  36   dnl    if -lsocket doesn't work by itself.
  37   druntime_check_both=no
  38   AC_CHECK_FUNC(connect, ,
  39         [AC_CHECK_LIB(socket, connect,
  40          LIBS="$LIBS -lsocket", druntime_check_both=yes)])
  41   if test "$druntime_check_both" = "yes"; then
  42     druntime_old_libs=$LIBS
  43     LIBS="$LIBS -lsocket -lnsl"
  44     AC_CHECK_FUNC(accept, , LIBS=$druntime_old_libs)
  45   fi
  46   AC_CHECK_FUNC(gethostbyname, ,
  47         [AC_CHECK_LIB(nsl, gethostbyname, LIBS="$LIBS -lnsl")])
  48 ])
  49
  50 # DRUNTIME_LIBRARIES_ZLIB
  51 # -----------------------
  52 # Allow specifying whether to use the system zlib or
  53 # compiling the zlib included in GCC.  Adds substitute
  54 # for LIBZ or adds zlib to LIBS if necessary.
  55 AC_DEFUN([DRUNTIME_LIBRARIES_ZLIB],
  56 [
  57   AC_LANG_PUSH([C])
  58   LIBZ=""
  59
  60   AC_ARG_WITH(target-system-zlib,
  61     AS_HELP_STRING([--with-target-system-zlib={yes,no,auto}],
  62                    [use installed libz (default: no)]),,
  63               [with_target_system_zlib=no])
  64
  65   case "$with_target_system_zlib" in
  66     yes|no|auto) ;;
  67     *) AC_MSG_ERROR([Invalid argument for --with-target-system-zlib]) ;;
  68   esac
  69
  70   AC_MSG_CHECKING([for system zlib])
  71   save_LIBS=$LIBS
  72   LIBS="$LIBS -lz"
  73   dnl the link test is not good enough for ARM32 multilib detection,
  74   dnl first check to link, then to run
  75   AC_LINK_IFELSE(
  76     [AC_LANG_PROGRAM([#include <zlib.h>],[gzopen("none", "rb")])],
  77     [
  78       AC_RUN_IFELSE([AC_LANG_SOURCE([[
  79         #include <zlib.h>
  80         int main() {
  81           gzFile file = gzopen("none", "rb");
  82           return 0;
  83         }
  84         ]])],
  85         [system_zlib_found=yes],
  86         [system_zlib_found=no],
  87         dnl no system zlib for cross builds ...
  88         [system_zlib_found=no]
  89       )
  90     ],
  91     [system_zlib_found=no])
  92   LIBS=$save_LIBS
  93
  94   if test x$system_zlib_found = xyes && test x$with_target_system_zlib != xno; then
  95     AC_MSG_RESULT([found])
  96     LIBS="$LIBS -lz"
  97   elif test x$system_zlib_found = xno && test x$with_target_system_zlib = xyes; then
  98     AC_MSG_ERROR([system zlib required but not found])
  99   else
 100     AC_MSG_RESULT([just compiled])
 101     LIBZ=../../zlib/libz_convenience.la
 102   fi
 103
 104   AC_SUBST(LIBZ)
 105   AC_LANG_POP([C])
 106 ])
 107
 108 # DRUNTIME_LIBRARIES_ATOMIC
 109 # -------------------------
 110 # Allow specifying whether to use libatomic for atomic support.
 111 AC_DEFUN([DRUNTIME_LIBRARIES_ATOMIC],
 112 [
 113   AC_ARG_WITH(libatomic,
 114     AS_HELP_STRING([--without-libatomic],
 115                    [Do not use libatomic in core.atomic (default: auto)]))
 116
 117   DCFG_HAVE_LIBATOMIC=false
 118   LIBATOMIC=
 119   AS_IF([test "x$enable_libatomic" != "xno" && test "x$with_libatomic" != "xno"], [
 120     DCFG_HAVE_LIBATOMIC=true
 121     LIBATOMIC=../../libatomic/libatomic_convenience.la
 122   ], [
 123     AC_MSG_CHECKING([for libatomic])
 124     AC_MSG_RESULT([disabled])
 125   ])
 126
 127   AC_SUBST(DCFG_HAVE_LIBATOMIC)
 128   AC_SUBST(LIBATOMIC)
 129 ])
 130
 131 # DRUNTIME_LIBRARIES_BACKTRACE
 132 # ---------------------------
 133 # Allow specifying whether to use libbacktrace for backtrace support.
 134 # Adds subsitute for BACKTRACE_SUPPORTED, BACKTRACE_USES_MALLOC,
 135 # and BACKTRACE_SUPPORTS_THREADS.
 136 AC_DEFUN([DRUNTIME_LIBRARIES_BACKTRACE],
 137 [
 138   AC_LANG_PUSH([C])
 139   BACKTRACE_SUPPORTED=false
 140   BACKTRACE_USES_MALLOC=false
 141   BACKTRACE_SUPPORTS_THREADS=false
 142   LIBBACKTRACE=""
 143
 144   AC_ARG_WITH(libbacktrace,
 145     AS_HELP_STRING([--without-libbacktrace],
 146                    [Do not use libbacktrace in core.runtime (default: auto)]))
 147
 148   AS_IF([test "x$enable_libbacktrace" != "xno" && test "x$with_libbacktrace" != "xno"], [
 149     LIBBACKTRACE=../../libbacktrace/libbacktrace.la
 150
 151     gdc_save_CPPFLAGS=$CPPFLAGS
 152     CPPFLAGS="$CPPFLAGS -I../libbacktrace "
 153
 154     AC_CHECK_HEADER(backtrace-supported.h, have_libbacktrace_h=true,
 155       have_libbacktrace_h=false)
 156
 157     if $have_libbacktrace_h; then
 158       AC_MSG_CHECKING([libbacktrace: BACKTRACE_SUPPORTED])
 159       AC_EGREP_CPP(FOUND_LIBBACKTRACE_RESULT_GDC,
 160       [
 161       #include <backtrace-supported.h>
 162       #if BACKTRACE_SUPPORTED
 163         FOUND_LIBBACKTRACE_RESULT_GDC
 164       #endif
 165       ], BACKTRACE_SUPPORTED=true, BACKTRACE_SUPPORTED=false)
 166       AC_MSG_RESULT($BACKTRACE_SUPPORTED)
 167
 168       AC_MSG_CHECKING([libbacktrace: BACKTRACE_USES_MALLOC])
 169       AC_EGREP_CPP(FOUND_LIBBACKTRACE_RESULT_GDC,
 170       [
 171       #include <backtrace-supported.h>
 172       #if BACKTRACE_USES_MALLOC
 173         FOUND_LIBBACKTRACE_RESULT_GDC
 174       #endif
 175       ], BACKTRACE_USES_MALLOC=true, BACKTRACE_USES_MALLOC=false)
 176       AC_MSG_RESULT($BACKTRACE_USES_MALLOC)
 177
 178       AC_MSG_CHECKING([libbacktrace: BACKTRACE_SUPPORTS_THREADS])
 179       AC_EGREP_CPP(FOUND_LIBBACKTRACE_RESULT_GDC,
 180       [
 181       #include <backtrace-supported.h>
 182       #if BACKTRACE_SUPPORTS_THREADS
 183         FOUND_LIBBACKTRACE_RESULT_GDC
 184       #endif
 185       ], BACKTRACE_SUPPORTS_THREADS=true, BACKTRACE_SUPPORTS_THREADS=false)
 186       AC_MSG_RESULT($BACKTRACE_SUPPORTS_THREADS)
 187     fi
 188     CPPFLAGS=$gdc_save_CPPFLAGS
 189   ], [
 190     AC_MSG_CHECKING([for libbacktrace])
 191     AC_MSG_RESULT([disabled])
 192   ])
 193
 194   AC_SUBST(LIBBACKTRACE)
 195   AC_SUBST(BACKTRACE_SUPPORTED)
 196   AC_SUBST(BACKTRACE_USES_MALLOC)
 197   AC_SUBST(BACKTRACE_SUPPORTS_THREADS)
 198   AC_LANG_POP([C])
 199 ])
 200
 201 # DRUNTIME_LIBRARIES_CLIB
 202 # -----------------------
 203 # Perform various feature checks on the C library.
 204 AC_DEFUN([DRUNTIME_LIBRARIES_CLIB],
 205 [
 206   AC_LANG_PUSH([C])
 207   DCFG_HAVE_QSORT_R=false
 208   AC_CHECK_FUNC(qsort_r, [DCFG_HAVE_QSORT_R=true])
 209   AC_SUBST(DCFG_HAVE_QSORT_R)
 210   AC_LANG_POP([C])
 211 ])
 212
 213 # DRUNTIME_LIBRARIES_UCONTEXT
 214 # ------------------------------
 215 # Autodetect and add ucontext library to LIBS if necessary.
 216 # This is only required if fiber_switchContext does not have
 217 # its own internal asm implementation.
 218 AC_DEFUN([DRUNTIME_LIBRARIES_UCONTEXT],
 219 [
 220   # Keep this in sync with core/thread.d, set druntime_fiber_asm_external to
 221   # "yes" for targets that have 'version = AsmExternal'.
 222   druntime_fiber_asm_external=no
 223   case "$target_cpu" in
 224     aarch64* | \
 225     arm* | \
 226     i[[34567]]86|x86_64 | \
 227     powerpc)
 228       druntime_fiber_asm_external=yes
 229       ;;
 230   esac
 231   if test "$druntime_fiber_asm_external" = no; then
 232     AC_SEARCH_LIBS([swapcontext], [c ucontext], [],
 233       AC_MSG_ERROR([swapcontext required but not found]))
 234   fi
 235 ])
 236
 237 # DRUNTIME_LIBRARIES_VALGRIND
 238 # ------------------------------
 239 # Allow specifying whether to use valgrind integration in the GC, which enables
 240 # the D run-time to communicate which memory access operations are valid.
 241 # This is only required if `--enable-libphobos-checking=valgrind' was seen.
 242 AC_DEFUN([DRUNTIME_LIBRARIES_VALGRIND],
 243 [
 244   AC_CHECK_HEADERS(stddef.h stdlib.h)
 245
 246   AC_CHECK_HEADER(valgrind.h, have_valgrind_h=yes, have_valgrind_h=no)
 247
 248   AC_MSG_CHECKING(for VALGRIND_DISCARD in <valgrind/memcheck.h>)
 249   AC_PREPROC_IFELSE([AC_LANG_SOURCE(
 250     [[#include <valgrind/memcheck.h>
 251   #ifndef VALGRIND_DISCARD
 252   #error VALGRIND_DISCARD not defined
 253   #endif]])],
 254     [have_valgrind_memcheck_h=yes],
 255     [have_valgrind_memcheck_h=no])
 256   AC_MSG_RESULT($have_valgrind_memcheck_h)
 257   AC_MSG_CHECKING(for VALGRIND_DISCARD in <memcheck.h>)
 258   AC_PREPROC_IFELSE([AC_LANG_SOURCE(
 259     [[#include <memcheck.h>
 260   #ifndef VALGRIND_DISCARD
 261   #error VALGRIND_DISCARD not defined
 262   #endif]])],
 263     [have_memcheck_h=yes],
 264     [have_memcheck_h=no])
 265   AC_MSG_RESULT($have_memcheck_h)
 266
 267   if test x$VALGRIND_FLAG != x ; then
 268     AC_DEFINE(ENABLE_VALGRIND_CHECKING, 1,
 269         [Define to enable to integrate valgrind (a memory checker) in the GC.])
 270   fi
 271   if test $have_valgrind_memcheck_h = yes; then
 272     AC_DEFINE(HAVE_VALGRIND_MEMCHECK_H, 1,
 273         [Define if valgrind's valgrind/memcheck.h header is installed.])
 274   fi
 275   if test $have_memcheck_h = yes; then
 276     AC_DEFINE(HAVE_MEMCHECK_H, 1,
 277         [Define if valgrind's memcheck.h header is installed.])
 278   fi
 279
 280   if test x$VALGRIND_FLAG != x; then
 281     if (test $have_valgrind_h = no \
 282         && test $have_memcheck_h = no \
 283         && test $have_valgrind_memcheck_h = no); then
 284       AC_MSG_ERROR([*** valgrind checking requested, but
 285 *** Can't find valgrind/memcheck.h, memcheck.h or valgrind.h])
 286     fi
 287   fi
 288 ])