Mercurial > hg > xmms-sid
view acinclude.m4 @ 264:2316e524d67b
Improved comments.
author | Matti Hamalainen <ccr@tnsp.org> |
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date | Wed, 22 Dec 2004 09:07:03 +0000 |
parents | a66c634b222a |
children | 3cda19cf5181 |
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dnl *** These m4-macros are ripped from XSIDPLAY v1.6.5's acinclude.m4 dnl *** (C) Copyright 2002 Michael Schwendt, licensed under GNU GPL v2. dnl *** Updated for new automake/autoconf plus namespace and other dnl *** minor fixes and changes by Matti 'ccr' Hämäläinen (C) 2003 TNSP dnl ------------------------------------------------------------------------- dnl Try to find a file (or one of more files in a list of dirs). dnl ------------------------------------------------------------------------- AC_DEFUN([MY_FIND_FILE], [ $3="" for i in $2; do for j in $1; do if test -r "$i/$j"; then $3=$i break 2 fi done done ]) dnl ------------------------------------------------------------------------- AC_DEFUN([MY_SUBST], dnl Substitute an instance of @$1@ with value "$2". dnl Example: MY_SUBST(FOO,BAR) <-> @FOO@ => BAR [ eval "$1=$2" AC_SUBST($1) ]) AC_DEFUN([MY_SUBST_DEF], dnl Substitute an instance of @$1@ with value "#define $1". dnl Example: MY_SUBST_DEF(FOO) <-> @FOO@ => #define FOO [ eval "$1=\"#define $1\"" AC_SUBST($1) ]) AC_DEFUN([MY_SUBST_UNDEF], dnl Substitute an instance of @$1@ with value "#undef $1". dnl Example: MY_SUBST_UNDEF(FOO) <-> @FOO@ => #undef FOO [ eval "$1=\"#undef $1\"" AC_SUBST($1) ]) dnl ------------------------------------------------------------------------- dnl Pass C++ compiler options to libtool which supports C only. dnl ------------------------------------------------------------------------- AC_DEFUN([MY_PROG_LIBTOOL], [ xs_save_cc="$CC" xs_save_cflags="$CFLAGS" CC="$CXX" CFLAGS="$CXXFLAGS" AM_PROG_LIBTOOL CC="$xs_save_cc" CFLAGS="$xs_save_cflags" ]) dnl ------------------------------------------------------------------------- AC_DEFUN([MY_TRY_LINK_SAVE], [ xs_cxx_save="$CXX" xs_cxxflags_save="$CXXFLAGS" xs_ldflags_save="$LDFLAGS" xs_libs_save="$LIBS" ]) AC_DEFUN([MY_TRY_LINK_RESTORE], [ CXX="$xs_cxx_save" CXXFLAGS="$xs_cxxflags_save" LDFLAGS="$xs_ldflags_save" LIBS="$xs_libs_save" ]) AC_DEFUN([MY_PROG_PKGCONFIG], [ AC_PATH_PROG([PKG_CONFIG], [pkg-config]) ]) AC_DEFUN([MY_NEED_PKGCONFIG], [ AC_REQUIRE([MY_PROG_PKGCONFIG]) if test -z "$PKG_CONFIG"; then AC_MSG_ERROR([[pkg-config not found. See http://pkgconfig.sourceforge.net]]) fi if ! $PKG_CONFIG --atleast-pkgconfig-version 0.5 ; then AC_MSG_ERROR([[pkg-config too old; version 0.5 or better required.]]) fi ]) dnl ------------------------------------------------------------------------- dnl Try to find SIDPLAY library and header files. dnl $xs_have_sidplay1 will be "yes" or "no" dnl @SIDPLAY1_LDADD@ will be substituted with linker parameters dnl @SIDPLAY1_INCLUDES@ will be substituted with compiler parameters dnl ------------------------------------------------------------------------- AC_DEFUN([XS_PATH_LIBSIDPLAY1], [ AC_MSG_CHECKING([for working SIDPlay1 library and headers]) AC_LANG_PUSH([C++]) # Use include path given by user (if any). if test -n "$xs_sidplay1_includes"; then xs_sidplay1_cxxflags="-I$xs_sidplay1_includes" else xs_sidplay1_cxxflags="" fi # Use library path given by user (if any). if test -n "$xs_sidplay1_library"; then xs_sidplay1_ldflags="-L$xs_sidplay1_library" else xs_sidplay1_ldflags="" fi AC_CACHE_VAL(xs_cv_have_sidplay1, [ # Run test compilation with either standard search path # or user-defined paths. MY_TRY_LIBSIDPLAY1 if test "$xs_sidplay1_works" = yes; then xs_cv_have_sidplay1="xs_have_sidplay1=yes \ xs_sidplay1_cxxflags=\"$xs_sidplay1_cxxflags\" \ xs_sidplay1_ldflags=\"$xs_sidplay1_ldflags\" " else MY_FIND_LIBSIDPLAY1 fi ]) eval "$xs_cv_have_sidplay1" if test "$xs_have_sidplay1" = yes; then if test -n "$xs_sidplay1_cxxflags" || test -n "$xs_sidplay1_ldflags"; then AC_MSG_RESULT([$xs_sidplay1_cxxflags $xs_sidplay1_ldflags]) else AC_MSG_RESULT([yes]) fi SIDPLAY1_LDADD="$xs_sidplay1_ldflags -lsidplay" SIDPLAY1_INCLUDES="$xs_sidplay1_cxxflags" AC_SUBST([SIDPLAY1_LDADD]) AC_SUBST([SIDPLAY1_INCLUDES]) else AC_MSG_RESULT([no]) fi AC_LANG_POP([C++]) ]) dnl Functions used by XS_PATH_LIBSIDPLAY1. AC_DEFUN([MY_FIND_LIBSIDPLAY1], [ # Search common locations where header files might be stored. xs_sidplay1_incdirs="$xs_sidplay1_includes /usr/include /usr/local/include /usr/lib/sidplay/include /usr/local/lib/sidplay/include /opt/sfw/include /opt/csw/include" MY_FIND_FILE(sidplay/sidtune.h, $xs_sidplay1_incdirs, xs_sidplay1_includes) # Search common locations where library might be stored. xs_sidplay1_libdirs="$xs_sidplay1_library /usr/lib /usr/lib/sidplay /usr/local/lib/sidplay /opt/sfw/lib /opt/csw/lib" MY_FIND_FILE(libsidplay.a libsidplay.so libsidplay.so.1 libsidplay.so.1.36 libsidplay.so.1.37, $xs_sidplay1_libdirs, xs_sidplay1_library) if test -z "$xs_sidplay1_includes" || test -z "$xs_sidplay1_library"; then xs_cv_have_sidplay1="xs_have_sidplay1=no \ xs_sidplay1_ldflags=\"\" xs_sidplay1_cxxflags=\"\" " else # Test compilation with found paths. xs_sidplay1_ldflags="-L$xs_sidplay1_library" xs_sidplay1_cxxflags="-I$xs_sidplay1_includes" MY_TRY_LIBSIDPLAY1 xs_cv_have_sidplay1="xs_have_sidplay1=$xs_sidplay1_works \ xs_sidplay1_ldflags=\"$xs_sidplay1_ldflags\" \ xs_sidplay1_cxxflags=\"$xs_sidplay1_cxxflags\" " fi ]) AC_DEFUN([MY_TRY_LIBSIDPLAY1], [ MY_TRY_LINK_SAVE CXXFLAGS="$CXXFLAGS $xs_sidplay1_cxxflags" LDFLAGS="$LDFLAGS $xs_sidplay1_ldflags" LIBS="$LIBS -lsidplay" AC_LINK_IFELSE([AC_LANG_PROGRAM( [[#include <sidplay/sidtune.h>]], [[sidTune* myTest = new sidTune(0);]])], [xs_sidplay1_works=yes], [xs_sidplay1_works=no] ) MY_TRY_LINK_RESTORE ]) dnl ------------------------------------------------------------------------- dnl Try to find SIDPLAY2 library and header files. dnl $xs_have_sidplay2 will be "yes" or "no" dnl @SIDPLAY_LDADD@ will be substituted with linker parameters dnl @SIDPLAY_INCLUDES@ will be substituted with compiler parameters dnl ------------------------------------------------------------------------- AC_DEFUN([XS_PATH_LIBSIDPLAY2], [ AC_MSG_CHECKING([for working SIDPlay2 library and headers]) AC_LANG_PUSH([C++]) AC_REQUIRE([MY_PROG_PKGCONFIG]) if test -n "$PKG_CONFIG" && $PKG_CONFIG --atleast-version $LIBSIDPLAY2_REQUIRED_VERSION libsidplay2; then xs_pkgcfg_knows=yes else xs_pkgcfg_knows=no fi # Derive sidbuilders path from libsidplay2 root. if test -n "$xs_sidplay2_library"; then xs_sidplay2_builders="$xs_sidplay2_library/sidplay/builders" elif test "$xs_pkgcfg_knows" = yes ; then xs_sidplay2_builders=`$PKG_CONFIG --variable=builders libsidplay2` fi AC_CACHE_VAL(xs_cv_have_sidplay2, [ # Run test compilation with either standard search path # or user-defined paths. xs_sidplay2_ldadd="-lsidplay2" MY_TRY_LIBSIDPLAY2 if test "$xs_sidplay2_works" = yes; then xs_cv_have_sidplay2="xs_have_sidplay2=yes \ xs_sidplay2_cxxflags=\"$xs_sidplay2_cxxflags\" \ xs_sidplay2_ldadd=\"$xs_sidplay2_ldadd\" \ xs_sidplay2_builders=\"$xs_sidplay2_builders\" " else MY_FIND_LIBSIDPLAY2 fi ]) eval "$xs_cv_have_sidplay2" if test "$xs_have_sidplay2" = yes; then if test -n "$xs_sidplay2_cxxflags" || test -n "$xs_sidplay2_ldadd"; then AC_MSG_RESULT([$xs_sidplay2_cxxflags $xs_sidplay2_ldadd]) else AC_MSG_RESULT([yes]) fi SIDPLAY2_LDADD="$xs_sidplay2_ldadd" SIDPLAY2_INCLUDES="$xs_sidplay2_cxxflags" AC_SUBST([SIDPLAY2_LDADD]) AC_SUBST([SIDPLAY2_INCLUDES]) else AC_MSG_RESULT([no]) fi AC_LANG_POP([C++]) ]) dnl Functions used by XS_PATH_LIBSIDPLAY2. AC_DEFUN([MY_FIND_LIBSIDPLAY2], [ # See whether user didn't provide paths. if test -z "$xs_sidplay2_includes"; then if test "$xs_pkgcfg_knows" = yes ; then xs_sidplay2_includes=`$PKG_CONFIG --variable=includedir libsidplay2` xs_sidplay2_cxxflags=`$PKG_CONFIG --cflags libsidplay2` else # Search common locations where header files might be stored. xs_sidplay2_incdirs="$xs_sidplay2_includes $xs_sidplay2_includes/include /usr/include /usr/local/include /usr/lib/sidplay/include /usr/local/lib/sidplay/include /opt/sfw/include /opt/csw/include" MY_FIND_FILE(sidplay/sidplay2.h,$xs_sidplay2_incdirs,xs_sidplay2_includes) xs_sidplay2_cxxflags="-I$xs_sidplay2_includes" fi else xs_sidplay2_cxxflags="-I$xs_sidplay2_includes" fi if test -z "$xs_sidplay2_library"; then if test "$xs_pkgcfg_knows" = yes ; then xs_sidplay2_library=`$PKG_CONFIG --variable=libdir libsidplay2` xs_sidplay2_ldadd=`$PKG_CONFIG --libs libsidplay2` xs_sidplay2_builders=`$PKG_CONFIG --variable=builders libsidplay2` else # Search common locations where library might be stored. xs_sidplay2_libdirs="$xs_sidplay2_library $xs_sidplay2_library/lib $xs_sidplay2_library/src /usr/lib /usr/lib/sidplay /usr/local/lib/sidplay /opt/sfw/lib /opt/csw/lib" MY_FIND_FILE(libsidplay2.la,$xs_sidplay2_libdirs,xs_sidplay2_library) xs_sidplay2_ldadd="-L$xs_sidplay2_library -lsidplay2" xs_sidplay2_builders="$xs_sidplay2_library/sidplay/builders" fi else xs_sidplay2_ldadd="-L$xs_sidplay2_library -lsidplay2" fi if test -z "$xs_sidplay2_includes" || test -z "$xs_sidplay2_library"; then xs_cv_have_sidplay2="xs_have_sidplay2=no \ xs_sidplay2_ldadd=\"\" xs_sidplay2_cxxflags=\"\" \ xs_sidplay2_builders=\"\" " else # Test compilation with found paths. xs_sidplay2_ldadd="-L$xs_sidplay2_library -lsidplay2" xs_sidplay2_cxxflags="-I$xs_sidplay2_includes" MY_TRY_LIBSIDPLAY2 xs_cv_have_sidplay2="xs_have_sidplay2=$xs_sidplay2_works \ xs_sidplay2_ldadd=\"$xs_sidplay2_ldadd\" \ xs_sidplay2_cxxflags=\"$xs_sidplay2_cxxflags\" \ xs_sidplay2_builders=\"$xs_sidplay2_builders\" " fi ]) AC_DEFUN([MY_TRY_LIBSIDPLAY2], [ MY_TRY_LINK_SAVE CXX="${SHELL-/bin/sh} ${srcdir}/libtool $CXX" CXXFLAGS="$CXXFLAGS $xs_sidplay2_cxxflags -DHAVE_UNIX" LDFLAGS="$LDFLAGS $xs_sidplay2_ldadd" AC_LINK_IFELSE([AC_LANG_PROGRAM( [[#include <sidplay/sidplay2.h>]], [[sidplay2 *myEngine;]])], [xs_sidplay2_works=yes], [xs_sidplay2_works=no] ) MY_TRY_LINK_RESTORE ]) dnl ------------------------------------------------------------------------- dnl Find libsidplay2 builders (sidbuilders) dir. dnl @BUILDERS_INCLUDES@ dnl @BUILDERS_LDFLAGS@ dnl ------------------------------------------------------------------------- AC_DEFUN([BUILDERS_FIND], [ AC_MSG_CHECKING([for SIDPlay2 builders directory]) AC_LANG_PUSH([C++]) AC_REQUIRE([XS_PATH_LIBSIDPLAY2]) dnl Be pessimistic. builders_available=no dnl Sidbuilder headers are included with "builders" prefix. builders_includedir=$xs_sidplay2_includes builders_libdir=$xs_sidplay2_builders dnl If libsidplay2 is in standard library search path, we need dnl to get an argument whether /usr, /usr/local, etc. Else we dnl can only use ${libdir}/sidplay/builders, but then are dnl unable to check whether files exist as long as ${exec_prefix} dnl is not defined in the configure script. So, this is a bit dnl ugly, but a satisfactory fallback default for those who dnl define ${prefix} and ${exec_prefix}. if test -z $builders_libdir; then eval "builders_libdir=$libdir/sidplay/builders" fi AC_ARG_WITH(sidbuilders, [ --with-sidbuilders=DIR what the SIDPlay2 builders install PREFIX is], [builders_includedir="$withval/include" builders_libdir="$withval/lib/sidplay/builders"]) AC_ARG_WITH(builders-inc, [ --with-builders-inc=DIR where the SIDPlay2 builders headers are located], [builders_includedir="$withval"]) AC_ARG_WITH(builders-lib, [ --with-builders-lib=DIR where the SIDPlay2 builders libraries are installed], [builders_libdir="$withval"]) if test -n "$builders_includedir"; then BUILDERS_INCLUDES="-I$builders_includedir" fi if test -n "$builders_libdir"; then BUILDERS_LDFLAGS="-L$builders_libdir" fi if test -d $builders_libdir; then xs_have_sidbuilders_dir=yes AC_MSG_RESULT([$builders_libdir]) else xs_have_sidbuilders_dir=no AC_MSG_RESULT([$xs_have_sidbuilders_dir]) AC_MSG_ERROR([$builders_libdir not found! Check --help on how to specify SIDPlay2 and/or builders library and header path, or set --exec-prefix to the same prefix as your installation of libsidplay2. ]) fi AC_SUBST([BUILDERS_INCLUDES]) AC_SUBST([BUILDERS_LDFLAGS]) AC_LANG_POP([C++]) ]) dnl ------------------------------------------------------------------------- dnl Test for working reSID builder. dnl sets $(RESID_LDADD), substitutes @RESID_LDADD@ dnl ------------------------------------------------------------------------- AC_DEFUN([BUILDERS_FIND_RESID], [ AC_MSG_CHECKING([for reSID builder module]) AC_LANG_PUSH([C++]) MY_TRY_LINK_SAVE CXX="${SHELL-/bin/sh} ${srcdir}/libtool $CXX" CXXFLAGS="$CXXFLAGS $BUILDERS_INCLUDES" LDFLAGS="$LDFLAGS $BUILDERS_LDFLAGS" LIBS="$LIBS -lresid-builder" AC_LINK_IFELSE([AC_LANG_PROGRAM( [[#include <sidplay/builders/resid.h>]], [[ReSIDBuilder *sid;]])], [builders_work=yes], [builders_work=no] ) MY_TRY_LINK_RESTORE if test "$builders_work" = yes; then builders_available=yes xs_builders="reSID $xs_builders" AC_DEFINE(HAVE_RESID_BUILDER) RESID_LDADD="-lresid-builder" fi AC_MSG_RESULT($builders_work) AC_SUBST([RESID_LDADD]) AC_LANG_POP([C++]) ]) dnl ------------------------------------------------------------------------- dnl Test for working HardSID builder. dnl sets $(HARDSID_LDADD), substitutes @HARDSID_LDADD@ dnl ------------------------------------------------------------------------- AC_DEFUN([BUILDERS_FIND_HARDSID], [ AC_MSG_CHECKING([for HardSID builder module]) AC_LANG_PUSH([C++]) MY_TRY_LINK_SAVE CXX="${SHELL-/bin/sh} ${srcdir}/libtool $CXX" CXXFLAGS="$CXXFLAGS $BUILDERS_INCLUDES" LDFLAGS="$LDFLAGS $BUILDERS_LDFLAGS" LIBS="$LIBS -lhardsid-builder" AC_LINK_IFELSE([AC_LANG_PROGRAM( [[#include <sidplay/builders/hardsid.h>]], [[HardSID *sid;]])], [builders_work=yes], [builders_work=no] ) MY_TRY_LINK_RESTORE if test "$builders_work" = yes; then builders_available=yes xs_builders="HardSID $xs_builders" AC_DEFINE(HAVE_HARDSID_BUILDER) HARDSID_LDADD="-lhardsid-builder" fi AC_MSG_RESULT($builders_work) AC_SUBST([HARDSID_LDADD]) AC_LANG_POP([C++]) ])