AC_SUBST(NM)
])
+dnl Autoconf macros for configuring the QuickThreads package
+
+dnl QTHREADS_CONFIGURE configures the QuickThreads package. The QT
+dnl sources should be in $srcdir/qt. If configuration succeeds, this
+dnl macro creates the appropriate symlinks in the qt object directory,
+dnl and sets the following variables, used in building libqthreads.a:
+dnl QTHREAD_LTLIBS --- set to libqthreads.la if configuration
+dnl succeeds, or the empty string if configuration fails.
+dnl qtmd_h --- the name of the machine-dependent header file.
dnl
-dnl CY_AC_WITH_THREADS determines which thread library the user intends
-dnl to put underneath guile. Pass it the path to find the guile top-level
-dnl source directory. Eg CY_AC_WITH_THREADS(../..) for tcl/unix.
+dnl It also sets the following variables, which describe how clients
+dnl can link against libqthreads.a:
+dnl THREAD_PACKAGE --- set to "QT" if configuration succeeds, or
+dnl the empty string if configuration fails.
+dnl THREAD_CPPFLAGS --- set to `-I' flags for thread header files
+dnl THREAD_LIBS_LOCAL --- linker options for use in this source tree
+dnl THREAD_LIBS_INSTALLED --- linker options for use after this package
+dnl is installed
+dnl It would be nice if all thread configuration packages for Guile
+dnl followed the same conventions.
dnl
-
-AC_DEFUN([CY_AC_WITH_THREADS],[
-AC_CACHE_CHECK("threads package type",cy_cv_threads_package,[
-AC_CACHE_VAL(cy_cv_threads_cflags,[
-AC_CACHE_VAL(cy_cv_threads_libs,[
-use_threads=no;
-AC_ARG_WITH(threads,[ --with-threads thread interface],
- use_threads=$withval, use_threads=no)
-test -n "$use_threads" || use_threads=qt
-threads_package=unknown
-if test "$use_threads" != no; then
+dnl All of the above variables will be substituted into Makefiles in
+dnl the usual autoconf fashion.
dnl
-dnl Test for the qt threads package - used for cooperative threads
-dnl This may not necessarily be built yet - so just check for the
-dnl header files.
+dnl We distinguish between THREAD_LIBS_LOCAL and
+dnl THREAD_LIBS_INSTALLED because the thread library might be in
+dnl this tree, and be built using libtool. This means that:
+dnl 1) when building other executables in this tree, one must
+dnl pass the relative path to the ../libfoo.la file, but
+dnl 2) once the whole package has been installed, users should
+dnl link using -lfoo.
+dnl Normally, we only care about the first case, but since the
+dnl guile-config script needs to give users all the flags they need
+dnl to link programs against guile, the GUILE_WITH_THREADS macro
+dnl needs to supply the second piece of information as well.
dnl
- if test "$use_threads" = yes || test "$use_threads" = qt; then
- # Look for qt in source directory.
- if test -f $srcdir/qt/qt.c; then
- qtsrcdir="`(cd $srcdir; pwd)`/qt"
- threads_package=COOP
- cy_cv_threads_cflags="-I$qtsrcdir -I../qt"
- cy_cv_threads_libs="../qt/libqthreads.a"
- fi
+dnl This whole thing is a little confused about what ought to be
+dnl done in the top-level configure script, and what ought to be
+dnl taken care of in the subdirectory. For example, qtmdc_lo and
+dnl friends really ought not to be even mentioned in the top-level
+dnl configure script, but here they are.
+
+AC_DEFUN([QTHREADS_CONFIGURE],[
+ AC_REQUIRE([AC_PROG_LN_S])
+
+ AC_MSG_CHECKING(QuickThreads configuration)
+ # How can we refer to the qt source directory from within the qt build
+ # directory? For headers, we can rely on the fact that the qt src
+ # directory appears in the #include path.
+ qtsrcdir="`(cd $srcdir; pwd)`/qt"
+
+ changequote(,)dnl We use [ and ] in a regexp in the case
+
+ THREAD_PACKAGE=QT
+ case "$host" in
+ i[3456]86-*-*)
+ port_name=i386
+ qtmd_h=md/i386.h
+ qtmds_s=md/i386.s
+ qtmdc_c=md/null.c
+ qtdmdb_s=
+ ;;
+ mips-sgi-irix[56]*)
+ port_name=irix
+ qtmd_h=md/mips.h
+ qtmds_s=md/mips-irix5.s
+ qtmdc_c=md/null.c
+ qtdmdb_s=md/mips_b.s
+ ;;
+ mips-*-*)
+ port_name=mips
+ qtmd_h=md/mips.h
+ qtmds_s=md/mips.s
+ qtmdc_c=md/null.c
+ qtdmdb_s=md/mips_b.s
+ ;;
+ sparc-*-sunos*)
+ port_name=sparc-sunos
+ qtmd_h=md/sparc.h
+ qtmds_s=md/_sparc.s
+ qtmdc_c=md/null.c
+ qtdmdb_s=md/_sparc_b.s
+ ;;
+ sparc-*-*)
+ port_name=sparc
+ qtmd_h=md/sparc.h
+ qtmds_s=md/sparc.s
+ qtmdc_c=md/null.c
+ qtdmdb_s=md/sparc_b.s
+ ;;
+ alpha-*-*)
+ port_name=alpha
+ qtmd_h=md/axp.h
+ qtmds_s=md/axp.s
+ qtmdc_c=md/null.c
+ qtdmdb_s=md/axp_b.s
+ ;;
+ *)
+ echo "Unknown configuration; threads package disabled"
+ THREAD_PACKAGE=""
+ ;;
+ esac
+ changequote([, ])
+
+ # Did configuration succeed?
+ if test -n "$THREAD_PACKAGE"; then
+ AC_MSG_RESULT($port_name)
+ QTHREAD_LTLIBS=libqthreads.la
+ THREAD_CPPFLAGS="-I$qtsrcdir -I../qt"
+ THREAD_LIBS_LOCAL="../qt/libqthreads.la"
+ THREAD_LIBS_INSTALLED="-lqthreads"
else
- if test -f $use_threads/qt.c; then
- # FIXME seems as though we should try to use an installed qt here.
- threads_package=COOP
- cy_cv_threads_cflags="-I$use_threads -I../qt"
- cy_cv_threads_libs="../qt/libqthreads.a"
- fi
- fi
- if test "$use_threads" = pthreads; then
- # Look for pthreads in srcdir. See above to understand why
- # we always set threads_package.
- if test -f $srcdir/../../pthreads/pthreads/queue.c \
- || test -f $srcdir/../pthreads/pthreads/queue.c; then
- threads_package=MIT
- cy_cv_threads_cflags="-I$srcdir/../../pthreads/include"
- cy_cv_threads_libs="-L../../pthreads/lib -lpthread"
- fi
+ AC_MSG_RESULT(none; disabled)
fi
- saved_CPP="$CPPFLAGS"
- saved_LD="$LDFLAGS"
- saved_LIBS="$LIBS"
- if test "$threads_package" = unknown; then
-dnl
-dnl Test for the FSU threads package
-dnl
- CPPFLAGS="-I$use_threads/include"
- LDFLAGS="-L$use_threads/lib"
- LIBS="-lgthreads -lmalloc"
- AC_TRY_LINK([#include <pthread.h>],[
-pthread_equal(NULL,NULL);
-], threads_package=FSU)
- fi
- if test "$threads_package" = unknown; then
-dnl
-dnl Test for the MIT threads package
-dnl
- LIBS="-lpthread"
- AC_TRY_LINK([#include <pthread.h>],[
-pthread_equal(NULL,NULL);
-], threads_package=MIT)
- fi
- if test "$threads_package" = unknown; then
-dnl
-dnl Test for the PCthreads package
-dnl
- LIBS="-lpthreads"
- AC_TRY_LINK([#include <pthread.h>],[
-pthread_equal(NULL,NULL);
-], threads_package=PCthreads)
- fi
-dnl
-dnl Set the appropriate flags!
-dnl
- cy_cv_threads_cflags="$CPPFLAGS $cy_cv_threads_cflags"
- cy_cv_threads_package=$threads_package
- CPPFLAGS="$saved_CPP"
- LDFLAGS="$saved_LD"
- LIBS="$saved_LIBS"
- if test "$threads_package" = unknown; then
- AC_MSG_ERROR("cannot find thread library installation")
- fi
-fi
-])
-])
-],
-dnl
-dnl Set flags according to what is cached.
-dnl
-CPPFLAGS="$cy_cv_threads_cflags"
-LIBS="$cy_cv_threads_libs"
-)
+
+ AC_SUBST(QTHREAD_LTLIBS)
+ AC_SUBST(qtmd_h)
+ AC_SUBST(qtmds_s)
+ AC_SUBST(qtmdc_c)
+ AC_SUBST(qtdmdb_s)
+ AC_SUBST(THREAD_PACKAGE)
+ AC_SUBST(THREAD_CPPFLAGS)
+ AC_SUBST(THREAD_LIBS_LOCAL)
+ AC_SUBST(THREAD_LIBS_INSTALLED)
])
HCoop / bpt / guile.git / blobdiff