236 lines
7.2 KiB
Text
236 lines
7.2 KiB
Text
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#
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# Contains macros to handle library dependencies.
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#
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# DRUNTIME_LIBRARIES_DLOPEN
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# -----------------------
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# Autodetect and add dl library to LIBS if necessary.
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AC_DEFUN([DRUNTIME_LIBRARIES_DLOPEN],
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[
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# Libtool has already checked this, so re-use the inferred dlopen lib.
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AS_IF([test "x$enable_dlopen" = "xyes" && test -n "$lt_cv_dlopen_libs"], [
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LIBS="$LIBS $lt_cv_dlopen_libs"
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], [
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])
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])
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# DRUNTIME_LIBRARIES_NET
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# -----------------------
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# Autodetect and add networking library to LIBS if necessary.
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AC_DEFUN([DRUNTIME_LIBRARIES_NET],
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[
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dnl Check for the existence of the -lsocket and -lnsl libraries.
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dnl The order here is important, so that they end up in the right
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dnl order in the command line generated by make. Here are some
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dnl special considerations:
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dnl 1. Use "connect" and "accept" to check for -lsocket, and
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dnl "gethostbyname" to check for -lnsl.
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dnl 2. Use each function name only once: can't redo a check because
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dnl autoconf caches the results of the last check and won't redo it.
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dnl 3. Use -lnsl and -lsocket only if they supply procedures that
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dnl aren't already present in the normal libraries.
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dnl 4. On some systems, can't use -lsocket without -lnsl too.
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dnl To get around this problem, check for both libraries together
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dnl if -lsocket doesn't work by itself.
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druntime_check_both=no
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AC_CHECK_FUNC(connect, ,
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[AC_CHECK_LIB(socket, connect,
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LIBS="$LIBS -lsocket", druntime_check_both=yes)])
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if test "$druntime_check_both" = "yes"; then
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druntime_old_libs=$LIBS
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LIBS="$LIBS -lsocket -lnsl"
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AC_CHECK_FUNC(accept, , LIBS=$druntime_old_libs)
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fi
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AC_CHECK_FUNC(gethostbyname, ,
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[AC_CHECK_LIB(nsl, gethostbyname, LIBS="$LIBS -lnsl")])
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])
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# DRUNTIME_LIBRARIES_ZLIB
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# -----------------------
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# Allow specifying whether to use the system zlib or
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# compiling the zlib included in GCC. Adds substitute
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# for LIBZ or adds zlib to LIBS if necessary.
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AC_DEFUN([DRUNTIME_LIBRARIES_ZLIB],
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[
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AC_LANG_PUSH([C])
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LIBZ=""
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AC_ARG_WITH(target-system-zlib,
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AS_HELP_STRING([--with-target-system-zlib={yes,no,auto}],
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[use installed libz (default: no)]),,
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[with_target_system_zlib=no])
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case "$with_target_system_zlib" in
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yes|no|auto) ;;
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*) AC_MSG_ERROR([Invalid argument for --with-target-system-zlib]) ;;
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esac
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AC_MSG_CHECKING([for system zlib])
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save_LIBS=$LIBS
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LIBS="$LIBS -lz"
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dnl the link test is not good enough for ARM32 multilib detection,
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dnl first check to link, then to run
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AC_LINK_IFELSE(
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[AC_LANG_PROGRAM([#include <zlib.h>],[gzopen("none", "rb")])],
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[
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AC_RUN_IFELSE([AC_LANG_SOURCE([[
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#include <zlib.h>
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int main() {
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gzFile file = gzopen("none", "rb");
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return 0;
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}
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]])],
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[system_zlib_found=yes],
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[system_zlib_found=no],
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dnl no system zlib for cross builds ...
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[system_zlib_found=no]
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)
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],
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[system_zlib_found=no])
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LIBS=$save_LIBS
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if test x$system_zlib_found = xyes && test x$with_target_system_zlib != xno; then
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AC_MSG_RESULT([found])
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LIBS="$LIBS -lz"
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elif test x$system_zlib_found = xno && test x$with_target_system_zlib = xyes; then
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AC_MSG_ERROR([system zlib required but not found])
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else
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AC_MSG_RESULT([just compiled])
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LIBZ=../../zlib/libz_convenience.la
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fi
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AC_SUBST(LIBZ)
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AC_LANG_POP([C])
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])
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# DRUNTIME_LIBRARIES_ATOMIC
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# -------------------------
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# Allow specifying whether to use libatomic for atomic support.
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AC_DEFUN([DRUNTIME_LIBRARIES_ATOMIC],
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[
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AC_ARG_WITH(libatomic,
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AS_HELP_STRING([--without-libatomic],
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[Do not use libatomic in core.atomic (default: auto)]))
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DCFG_HAVE_LIBATOMIC=false
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LIBATOMIC=
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AS_IF([test "x$enable_libatomic" != "xno" && test "x$with_libatomic" != "xno"], [
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DCFG_HAVE_LIBATOMIC=true
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LIBATOMIC=../../libatomic/libatomic_convenience.la
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], [
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AC_MSG_CHECKING([for libatomic])
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AC_MSG_RESULT([disabled])
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])
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AC_SUBST(DCFG_HAVE_LIBATOMIC)
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AC_SUBST(LIBATOMIC)
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])
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# DRUNTIME_LIBRARIES_BACKTRACE
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# ---------------------------
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# Allow specifying whether to use libbacktrace for backtrace support.
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# Adds subsitute for BACKTRACE_SUPPORTED, BACKTRACE_USES_MALLOC,
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# and BACKTRACE_SUPPORTS_THREADS.
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AC_DEFUN([DRUNTIME_LIBRARIES_BACKTRACE],
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[
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AC_LANG_PUSH([C])
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BACKTRACE_SUPPORTED=false
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BACKTRACE_USES_MALLOC=false
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BACKTRACE_SUPPORTS_THREADS=false
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LIBBACKTRACE=""
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AC_ARG_WITH(libbacktrace,
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AS_HELP_STRING([--without-libbacktrace],
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[Do not use libbacktrace in core.runtime (default: auto)]))
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AS_IF([test "x$enable_libbacktrace" != "xno" && test "x$with_libbacktrace" != "xno"], [
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LIBBACKTRACE=../../libbacktrace/libbacktrace.la
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gdc_save_CPPFLAGS=$CPPFLAGS
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CPPFLAGS="$CPPFLAGS -I../libbacktrace "
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AC_CHECK_HEADER(backtrace-supported.h, have_libbacktrace_h=true,
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have_libbacktrace_h=false)
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if $have_libbacktrace_h; then
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AC_MSG_CHECKING([libbacktrace: BACKTRACE_SUPPORTED])
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AC_EGREP_CPP(FOUND_LIBBACKTRACE_RESULT_GDC,
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[
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#include <backtrace-supported.h>
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#if BACKTRACE_SUPPORTED
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FOUND_LIBBACKTRACE_RESULT_GDC
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#endif
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], BACKTRACE_SUPPORTED=true, BACKTRACE_SUPPORTED=false)
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AC_MSG_RESULT($BACKTRACE_SUPPORTED)
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AC_MSG_CHECKING([libbacktrace: BACKTRACE_USES_MALLOC])
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AC_EGREP_CPP(FOUND_LIBBACKTRACE_RESULT_GDC,
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[
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#include <backtrace-supported.h>
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#if BACKTRACE_USES_MALLOC
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FOUND_LIBBACKTRACE_RESULT_GDC
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#endif
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], BACKTRACE_USES_MALLOC=true, BACKTRACE_USES_MALLOC=false)
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AC_MSG_RESULT($BACKTRACE_USES_MALLOC)
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AC_MSG_CHECKING([libbacktrace: BACKTRACE_SUPPORTS_THREADS])
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AC_EGREP_CPP(FOUND_LIBBACKTRACE_RESULT_GDC,
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[
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#include <backtrace-supported.h>
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#if BACKTRACE_SUPPORTS_THREADS
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FOUND_LIBBACKTRACE_RESULT_GDC
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#endif
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], BACKTRACE_SUPPORTS_THREADS=true, BACKTRACE_SUPPORTS_THREADS=false)
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AC_MSG_RESULT($BACKTRACE_SUPPORTS_THREADS)
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fi
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CPPFLAGS=$gdc_save_CPPFLAGS
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], [
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AC_MSG_CHECKING([for libbacktrace])
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AC_MSG_RESULT([disabled])
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])
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AC_SUBST(LIBBACKTRACE)
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AC_SUBST(BACKTRACE_SUPPORTED)
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AC_SUBST(BACKTRACE_USES_MALLOC)
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AC_SUBST(BACKTRACE_SUPPORTS_THREADS)
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AC_LANG_POP([C])
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])
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# DRUNTIME_LIBRARIES_CLIB
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# -----------------------
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# Perform various feature checks on the C library.
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AC_DEFUN([DRUNTIME_LIBRARIES_CLIB],
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[
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AC_LANG_PUSH([C])
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DCFG_HAVE_QSORT_R=false
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AC_CHECK_FUNC(qsort_r, [DCFG_HAVE_QSORT_R=true])
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AC_SUBST(DCFG_HAVE_QSORT_R)
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AC_LANG_POP([C])
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])
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# DRUNTIME_LIBRARIES_UCONTEXT
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# ------------------------------
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# Autodetect and add ucontext library to LIBS if necessary.
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# This is only required if fiber_switchContext does not have
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# its own internal asm implementation.
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AC_DEFUN([DRUNTIME_LIBRARIES_UCONTEXT],
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[
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# Keep this in sync with core/thread.d, set druntime_fiber_asm_external to
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# "yes" for targets that have 'version = AsmExternal'.
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druntime_fiber_asm_external=no
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case "$target_cpu" in
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aarch64* | \
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arm* | \
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i[[34567]]86|x86_64 | \
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powerpc)
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druntime_fiber_asm_external=yes
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;;
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esac
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if test "$druntime_fiber_asm_external" = no; then
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AC_SEARCH_LIBS([swapcontext], [c ucontext], [],
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AC_MSG_ERROR([swapcontext required but not found]))
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fi
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])
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