Commit 8385fa28 authored by Sam Hocevar's avatar Sam Hocevar

* acinclude.m4: split this file into separate .m4 subfiles.

 * configure.ac: remove include constructs because aclocal isn't clever
   enough to look for missing macros in these files.
parent 087f44d4
SUBDIRS = liba52 libao src test
DIST_SUBDIRS = include doc vc++ $(SUBDIRS)
SUBDIRS = liba52 libao include src test
DIST_SUBDIRS = doc vc++ $(SUBDIRS)
EXTRA_DIST = HISTORY bootstrap \
m4/cflags.m4 m4/inttypes.m4 m4/keywords.m4 m4/nonpic.m4
ACLOCAL_AMFLAGS = -I m4
EXTRA_DIST = HISTORY bootstrap
......@@ -141,8 +141,74 @@ AC_SYS_LARGEFILE
dnl Checks for library functions.
AC_CHECK_FUNCS([memalign gettimeofday ftime])
builtin([include],[liba52/configure.incl])
builtin([include],[libao/configure.incl])
AC_SUBST([LIBA52_CFLAGS])
AC_SUBST([LIBA52_LIBS])
dnl avoid -fPIC when possible
AC_LIBTOOL_NON_PIC([LIBA52_CFLAGS="$LIBA52_CFLAGS -prefer-non-pic"])
AC_ARG_ENABLE([fixed],
[ --enable-fixed use fixed-point (integer-based) arithmetic])
AC_ARG_ENABLE([double],
[ --enable-double use double-precision samples])
AC_ARG_ENABLE([djbfft],
[ --enable-djbfft make a version using djbfft])
if test x"$enable_fixed" = x"yes"; then
AC_DEFINE([LIBA52_FIXED],,[use fixed-point arithmetic])
elif test x"$enable_double" = x"yes"; then
AC_DEFINE([LIBA52_DOUBLE],,[a52 sample precision])
fi
if test x"$enable_djbfft" = x"yes"; then
AC_DEFINE([LIBA52_DJBFFT],,[liba52 djbfft support])
LIBA52_LIBS="$LIBA52_LIBS -ldjbfft"
fi
AC_SUBST([LIBAO_LIBS])
dnl check for oss
AC_ARG_ENABLE([oss],
[ --disable-oss make a version not using oss])
if test x"$enable_oss" != x"no"; then
case "$host" in
*-linux*|*-openbsd*|*-freebsd*|*-netbsd*|*-bsdi*)
AC_DEFINE([LIBAO_OSS],,[libao OSS support])
AC_CHECK_LIB([ossaudio],[_oss_ioctl],
[LIBAO_LIBS="$LIBAO_LIBS -lossaudio"]);;
esac
fi
dnl check for solaris
AC_ARG_ENABLE([solaris-audio],
[ --disable-solaris-audio make a version not using solaris audio])
if test x"$enable_solaris_audio" != x"no"; then
case "$host" in
*-sun-solaris*)
AC_DEFINE([LIBAO_SOLARIS],,[libao solaris support]);;
esac
fi
dnl check for al
AC_ARG_ENABLE([al-audio],
[ --disable-al-audio make a version not using al audio])
if test x"$enable_al" != x"no"; then
case "$host" in
*-sgi-irix*)
LIBAO_LIBS="$LIBAO_LIBS -laudio"
AC_DEFINE([LIBAO_AL],,[libao al support]);;
esac
fi
dnl check for win32
AC_ARG_ENABLE([win],
[ --disable-win make a version not using win audio])
if test x"$enable_win" != x"no"; then
case "$host" in
*-mingw32*|*-cygwin)
LIBAO_LIBS="$LIBAO_LIBS -lwinmm"
AC_DEFINE([LIBAO_WIN],,[libao win support]);;
esac
fi
AC_ARG_ENABLE([warnings],
[ --enable-warnings treat warnings as errors])
......@@ -155,7 +221,16 @@ elif test x"$TENDRA" = x"yes"; then
OPT_CFLAGS="$OPT_CFLAGS -DTenDRA_check"
fi
builtin([include],[src/configure.incl])
AC_SUBST([A52DEC_CFLAGS])
A52DEC_CFLAGS="$OPT_CFLAGS"
AC_ARG_ENABLE([gprof],[ --enable-gprof make a version using gprof])
if test x"$enable_gprof" = x"yes"; then
AC_DEFINE([A52DEC_GPROF],,[a52dec profiling])
A52DEC_CFLAGS=`echo "$A52DEC_CFLAGS"|sed "s/-fomit-frame-pointer//g"`
A52DEC_CFLAGS="$A52DEC_CFLAGS -p"
fi
AC_C_ATTRIBUTE_ALIGNED
......
dnl AC_TRY_CFLAGS (CFLAGS, [ACTION-IF-WORKS], [ACTION-IF-FAILS])
dnl check if $CC supports a given set of cflags
AC_DEFUN([AC_TRY_CFLAGS],
[AC_MSG_CHECKING([if $CC supports $1 flags])
SAVE_CFLAGS="$CFLAGS"
CFLAGS="$1"
AC_TRY_COMPILE([],[],[ac_cv_try_cflags_ok=yes],[ac_cv_try_cflags_ok=no])
CFLAGS="$SAVE_CFLAGS"
AC_MSG_RESULT([$ac_cv_try_cflags_ok])
if test x"$ac_cv_try_cflags_ok" = x"yes"; then
ifelse([$2],[],[:],[$2])
else
ifelse([$3],[],[:],[$3])
fi])
dnl AC_C_RESTRICT
dnl Do nothing if the compiler accepts the restrict keyword.
dnl Otherwise define restrict to __restrict__ or __restrict if one of
dnl those work, otherwise define restrict to be empty.
AC_DEFUN([AC_C_RESTRICT],
[AC_MSG_CHECKING([for restrict])
ac_cv_c_restrict=no
for ac_kw in restrict __restrict__ __restrict; do
AC_TRY_COMPILE([],[char * $ac_kw p;],[ac_cv_c_restrict=$ac_kw; break])
done
AC_MSG_RESULT([$ac_cv_c_restrict])
case $ac_cv_c_restrict in
restrict) ;;
no) AC_DEFINE([restrict],,
[Define as `__restrict' if that's what the C compiler calls
it, or to nothing if it is not supported.]) ;;
*) AC_DEFINE_UNQUOTED([restrict],$ac_cv_c_restrict) ;;
esac])
dnl AC_C_BUILTIN_EXPECT
dnl Check whether compiler understands __builtin_expect.
AC_DEFUN([AC_C_BUILTIN_EXPECT],
[AC_CACHE_CHECK([for __builtin_expect],[ac_cv_builtin_expect],
[cat > conftest.c <<EOF
#line __oline__ "configure"
int foo (int a)
{
a = __builtin_expect (a, 10);
return a == 10 ? 0 : 1;
}
EOF
if AC_TRY_COMMAND([${CC-cc} $CFLAGS -nostdlib -nostartfiles
-o conftest conftest.c -lgcc >&AC_FD_CC]); then
ac_cv_builtin_expect=yes
else
ac_cv_builtin_expect=no
fi
rm -f conftest*])
if test x"$ac_cv_builtin_expect" = x"yes"; then
AC_DEFINE(HAVE_BUILTIN_EXPECT,,
[Define if you have the `__builtin_expect' function.])
fi])
dnl AC_C_ALWAYS_INLINE
dnl Define inline to something appropriate, including the new always_inline
dnl attribute from gcc 3.1
AC_DEFUN([AC_C_ALWAYS_INLINE],
[AC_C_INLINE
if test x"$GCC" = x"yes" -a x"$ac_cv_c_inline" = x"inline"; then
AC_MSG_CHECKING([for always_inline])
SAVE_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -Wall -Werror"
AC_TRY_COMPILE([],
[__attribute__ ((__always_inline__)) void f (void);
#ifdef __cplusplus
42 = 42; // obviously illegal - we want c++ to fail here
#endif],
[ac_cv_always_inline=yes],[ac_cv_always_inline=no])
CFLAGS="$SAVE_CFLAGS"
AC_MSG_RESULT([$ac_cv_always_inline])
if test x"$ac_cv_always_inline" = x"yes"; then
AC_DEFINE_UNQUOTED([inline],[__attribute__ ((__always_inline__))])
fi
fi])
dnl AC_C_ATTRIBUTE_ALIGNED
dnl define ATTRIBUTE_ALIGNED_MAX to the maximum alignment if this is supported
AC_DEFUN([AC_C_ATTRIBUTE_ALIGNED],
[SAV_CFLAGS=$CFLAGS;
if test x"$GCC" = xyes; then CFLAGS="$CFLAGS -Werror"; fi
AC_CACHE_CHECK([__attribute__ ((aligned ())) support],
[ac_cv_c_attribute_aligned],
[ac_cv_c_attribute_aligned=0
for ac_cv_c_attr_align_try in 2 4 8 16 32 64; do
AC_TRY_COMPILE([],
[static char c __attribute__ ((aligned($ac_cv_c_attr_align_try))) = 0; return c;],
[ac_cv_c_attribute_aligned=$ac_cv_c_attr_align_try])
done])
if test x"$ac_cv_c_attribute_aligned" != x"0"; then
AC_DEFINE_UNQUOTED([ATTRIBUTE_ALIGNED_MAX],
[$ac_cv_c_attribute_aligned],[maximum supported data alignment])
fi
CFLAGS=$SAV_CFLAGS])
dnl AC_TRY_CFLAGS (CFLAGS, [ACTION-IF-WORKS], [ACTION-IF-FAILS])
dnl check if $CC supports a given set of cflags
AC_DEFUN([AC_TRY_CFLAGS],
[AC_MSG_CHECKING([if $CC supports $1 flags])
SAVE_CFLAGS="$CFLAGS"
CFLAGS="$1"
AC_TRY_COMPILE([],[],[ac_cv_try_cflags_ok=yes],[ac_cv_try_cflags_ok=no])
CFLAGS="$SAVE_CFLAGS"
AC_MSG_RESULT([$ac_cv_try_cflags_ok])
if test x"$ac_cv_try_cflags_ok" = x"yes"; then
ifelse([$2],[],[:],[$2])
else
ifelse([$3],[],[:],[$3])
fi])
dnl AC_LIBTOOL_NON_PIC ([ACTION-IF-WORKS], [ACTION-IF-FAILS])
dnl check for nonbuggy libtool -prefer-non-pic
AC_DEFUN([AC_LIBTOOL_NON_PIC],
[AC_MSG_CHECKING([if libtool supports -prefer-non-pic flag])
mkdir ac_test_libtool; cd ac_test_libtool; ac_cv_libtool_non_pic=no
echo "int g (int i); int f (int i) {return g (i);}" >f.c
echo "int (* hook) (int) = 0; int g (int i) {if (hook) i = hook (i); return i + 1;}" >g.c
../libtool --mode=compile $CC $CFLAGS -prefer-non-pic \
-c f.c >/dev/null 2>&1 && \
../libtool --mode=compile $CC $CFLAGS -prefer-non-pic \
-c g.c >/dev/null 2>&1 && \
../libtool --mode=link $CC $CFLAGS -prefer-non-pic -o libfoo.la \
-rpath / f.lo g.lo >/dev/null 2>&1 &&
ac_cv_libtool_non_pic=yes
cd ..; rm -fr ac_test_libtool; AC_MSG_RESULT([$ac_cv_libtool_non_pic])
if test x"$ac_cv_libtool_non_pic" = x"yes"; then
ifelse([$1],[],[:],[$1])
else
ifelse([$2],[],[:],[$2])
fi])
dnl AC_CHECK_GENERATE_INTTYPES_H (INCLUDE-DIRECTORY)
dnl generate a default inttypes.h if the header file does not exist already
AC_DEFUN([AC_CHECK_GENERATE_INTTYPES],
......
dnl AC_C_BUILTIN_EXPECT
dnl Check whether compiler understands __builtin_expect.
AC_DEFUN([AC_C_BUILTIN_EXPECT],
[AC_CACHE_CHECK([for __builtin_expect],[ac_cv_builtin_expect],
[cat > conftest.c <<EOF
#line __oline__ "configure"
int foo (int a)
{
a = __builtin_expect (a, 10);
return a == 10 ? 0 : 1;
}
EOF
if AC_TRY_COMMAND([${CC-cc} $CFLAGS -nostdlib -nostartfiles
-o conftest conftest.c -lgcc >&AC_FD_CC]); then
ac_cv_builtin_expect=yes
else
ac_cv_builtin_expect=no
fi
rm -f conftest*])
if test x"$ac_cv_builtin_expect" = x"yes"; then
AC_DEFINE(HAVE_BUILTIN_EXPECT,,
[Define if you have the `__builtin_expect' function.])
fi])
dnl AC_C_ALWAYS_INLINE
dnl Define inline to something appropriate, including the new always_inline
dnl attribute from gcc 3.1
AC_DEFUN([AC_C_ALWAYS_INLINE],
[AC_C_INLINE
if test x"$GCC" = x"yes" -a x"$ac_cv_c_inline" = x"inline"; then
AC_MSG_CHECKING([for always_inline])
SAVE_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -Wall -Werror"
AC_TRY_COMPILE([],
[__attribute__ ((__always_inline__)) void f (void);
#ifdef __cplusplus
42 = 42; // obviously illegal - we want c++ to fail here
#endif],
[ac_cv_always_inline=yes],[ac_cv_always_inline=no])
CFLAGS="$SAVE_CFLAGS"
AC_MSG_RESULT([$ac_cv_always_inline])
if test x"$ac_cv_always_inline" = x"yes"; then
AC_DEFINE_UNQUOTED([inline],[__attribute__ ((__always_inline__))])
fi
fi])
dnl AC_C_ATTRIBUTE_ALIGNED
dnl define ATTRIBUTE_ALIGNED_MAX to the maximum alignment if this is supported
AC_DEFUN([AC_C_ATTRIBUTE_ALIGNED],
[SAV_CFLAGS=$CFLAGS;
if test x"$GCC" = xyes; then CFLAGS="$CFLAGS -Werror"; fi
AC_CACHE_CHECK([__attribute__ ((aligned ())) support],
[ac_cv_c_attribute_aligned],
[ac_cv_c_attribute_aligned=0
for ac_cv_c_attr_align_try in 2 4 8 16 32 64; do
AC_TRY_COMPILE([],
[static struct s {
char a;
char b __attribute__ ((aligned($ac_cv_c_attr_align_try)));
} S = {0, 0};
switch (1) {
case 0:
case (long)(&((struct s *)0)->b) == $ac_cv_c_attr_align_try:
return 0;
}
return (long)&S;],
[ac_cv_c_attribute_aligned=$ac_cv_c_attr_align_try])
done])
if test x"$ac_cv_c_attribute_aligned" != x"0"; then
AC_DEFINE_UNQUOTED([ATTRIBUTE_ALIGNED_MAX],
[$ac_cv_c_attribute_aligned],[maximum supported data alignment])
fi
CFLAGS=$SAV_CFLAGS])
dnl AC_LIBTOOL_NON_PIC ([ACTION-IF-WORKS], [ACTION-IF-FAILS])
dnl check for nonbuggy libtool -prefer-non-pic
AC_DEFUN([AC_LIBTOOL_NON_PIC],
[AC_MSG_CHECKING([if libtool supports -prefer-non-pic flag])
mkdir ac_test_libtool; cd ac_test_libtool; ac_cv_libtool_non_pic=no
echo "int g (int i); static int h (int i) {return g (i);} int f (int i) {return h (i);}" >f.c
echo "int (* hook) (int) = 0; int g (int i) {if (hook) i = hook (i); return i + 1;}" >g.c
../libtool --mode=compile $CC $CFLAGS -prefer-non-pic \
-c f.c >/dev/null 2>&1 && \
../libtool --mode=compile $CC $CFLAGS -prefer-non-pic \
-c g.c >/dev/null 2>&1 && \
../libtool --mode=link $CC $CFLAGS -prefer-non-pic -o libfoo.la \
-rpath / f.lo g.lo >/dev/null 2>&1 &&
ac_cv_libtool_non_pic=yes
cd ..; rm -fr ac_test_libtool; AC_MSG_RESULT([$ac_cv_libtool_non_pic])
if test x"$ac_cv_libtool_non_pic" = x"yes"; then
ifelse([$1],[],[:],[$1])
else
ifelse([$2],[],[:],[$2])
fi])
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