dnl Checks to see if this is SUNPro we're building with
dnl Usage:
dnl AC_PROG_CC_SUNPRO
AC_DEFUN([AC_PROG_CC_SUNPRO],
[AC_CACHE_CHECK(whether we are using SUNPro C, ac_cv_prog_suncc,
[dnl The semicolon is to pacify NeXT's syntax-checking cpp.
cat > conftest.c <<EOF
#ifdef __SUNPRO_C
yes;
#endif
EOF
if AC_TRY_COMMAND(${CC-cc} -E conftest.c) | egrep yes >/dev/null 2>&1; then
ac_cv_prog_suncc=yes
else
ac_cv_prog_suncc=no
fi])])
dnl #
dnl # FR_CHECK_TYPE_INCLUDE([#includes ...], type, default-C-types)
dnl #
dnl # This function is like AC_CHECK_TYPE, but you can give this one
dnl # a list of include files to check.
dnl #
AC_DEFUN([FR_CHECK_TYPE_INCLUDE],
[
AC_CACHE_CHECK(for $2, ac_cv_type_$2,
[ ac_cv_type_$2=no
AC_TRY_COMPILE($1,
[$2 foo],
ac_cv_type_$2=yes,
)
]
)
if test "$ac_cv_type_$2" != "yes"; then
AC_DEFINE($2, $3, $4)
fi
])
dnl #
dnl # Locate the directory in which a particular file is found.
dnl #
dnl # Usage: FR_LOCATE_DIR(MYSQLLIB_DIR, libmysqlclient.a)
dnl #
dnl # Defines the variable MYSQLLIB_DIR to be the directory(s) in
dnl # which the file libmysqlclient.a is to be found.
dnl #
dnl #
AC_DEFUN([FR_LOCATE_DIR],
[
dnl # If we have the program 'locate', then the problem of finding a
dnl # particular file becomes MUCH easier.
dnl #
dnl #
dnl # No 'locate' defined, do NOT do anything.
dnl #
if test "x$LOCATE" != "x"; then
dnl #
dnl # Root through a series of directories, looking for the given file.
dnl #
DIRS=
file=$2
for x in `${LOCATE} $file 2>/dev/null`; do
dnl #
dnl # When asked for 'foo', locate will also find 'foo_bar', which we
dnl # don't want. We want that EXACT filename.
dnl #
dnl # We ALSO want to be able to look for files like 'mysql/mysql.h',
dnl # and properly match them, too. So we try to strip off the last
dnl # part of the filename, using the name of the file we're looking
dnl # for. If we CANNOT strip it off, then the name will be unchanged.
dnl #
base=`echo $x | sed "s%/${file}%%"`
if test "x$x" = "x$base"; then
continue;
fi
dir=`${DIRNAME} $x 2>/dev/null`
dnl #
dnl # Exclude a number of directories.
dnl #
exclude=`echo ${dir} | ${GREP} /home`
if test "x$exclude" != "x"; then
continue
fi
dnl #
dnl # OK, we have an exact match. Let's be sure that we only find ONE
dnl # matching directory.
dnl #
already=`echo \$$1 ${DIRS} | ${GREP} ${dir}`
if test "x$already" = "x"; then
DIRS="$DIRS $dir"
fi
done
fi
dnl #
dnl # And remember the directory in which we found the file.
dnl #
eval "$1=\"\$$1 $DIRS\""
])
dnl #######################################################################
dnl #
dnl # Look for a library in a number of places.
dnl #
dnl # FR_SMART_CHECK_LIB(library, function)
dnl #
AC_DEFUN([FR_SMART_CHECK_LIB], [
sm_lib_safe=`echo "$1" | sed 'y%./+-%__p_%'`
sm_func_safe=`echo "$2" | sed 'y%./+-%__p_%'`
dnl #
dnl # We pass all arguments for linker testing in CCPFLAGS as these
dnl # will be passed to the compiler (then linker) first.
dnl #
dnl # The linker will search through -L directories in the order they
dnl # appear on the command line. Unfortunately the same rules appear
dnl # to apply to directories specified with --sysroot, so we must
dnl # pass the user specified directory first.
dnl #
dnl # Really we should be using LDFLAGS (-L<dir>) for this.
dnl #
old_LIBS="$LIBS"
old_CPPFLAGS="$CPPFLAGS"
smart_lib=
smart_ldflags=
smart_lib_dir=
dnl #
dnl # Try first any user-specified directory, otherwise we may pick up
dnl # the wrong version.
dnl #
if test "x$smart_try_dir" != "x"; then
for try in $smart_try_dir; do
AC_MSG_CHECKING([for $2 in -l$1 in $try])
LIBS="-l$1 $old_LIBS"
CPPFLAGS="-L$try -Wl,-rpath,$try $old_CPPFLAGS"
AC_TRY_LINK([extern char $2();],
[$2()],
[
smart_lib="-l$1"
smart_ldflags="-L$try -Wl,-rpath,$try"
AC_MSG_RESULT(yes)
break
],
[AC_MSG_RESULT(no)])
done
LIBS="$old_LIBS"
CPPFLAGS="$old_CPPFLAGS"
fi
dnl #
dnl # Try using the default library path
dnl #
if test "x$smart_lib" = "x"; then
AC_MSG_CHECKING([for $2 in -l$1])
LIBS="-l$1 $old_LIBS"
AC_TRY_LINK([extern char $2();],
[$2()],
[
smart_lib="-l$1"
AC_MSG_RESULT(yes)
],
[AC_MSG_RESULT(no)])
LIBS="$old_LIBS"
fi
dnl #
dnl # Try to guess possible locations.
dnl #
if test "x$smart_lib" = "x"; then
FR_LOCATE_DIR(smart_lib_dir,[lib$1${libltdl_cv_shlibext}])
FR_LOCATE_DIR(smart_lib_dir,[lib$1.a])
for try in $smart_lib_dir /usr/local/lib /opt/lib; do
AC_MSG_CHECKING([for $2 in -l$1 in $try])
LIBS="-l$1 $old_LIBS"
CPPFLAGS="-L$try -Wl,-rpath,$try $old_CPPFLAGS"
AC_TRY_LINK([extern char $2();],
[$2()],
[
smart_lib="-l$1"
smart_ldflags="-L$try -Wl,-rpath,$try"
AC_MSG_RESULT(yes)
break
],
[AC_MSG_RESULT(no)])
done
LIBS="$old_LIBS"
CPPFLAGS="$old_CPPFLAGS"
fi
dnl #
dnl # Found it, set the appropriate variable.
dnl #
if test "x$smart_lib" != "x"; then
eval "ac_cv_lib_${sm_lib_safe}_${sm_func_safe}=yes"
LIBS="$smart_ldflags $smart_lib $old_LIBS"
SMART_LIBS="$smart_ldflags $smart_lib $SMART_LIBS"
fi
])
dnl #######################################################################
dnl #
dnl # Look for a header file in a number of places.
dnl #
dnl # FR_SMART_CHECK_INCLUDE(foo.h, [ #include <other.h> ])
dnl #
AC_DEFUN([FR_SMART_CHECK_INCLUDE], [
ac_safe=`echo "$1" | sed 'y%./+-%__pm%'`
old_CPPFLAGS="$CPPFLAGS"
smart_include=
dnl # The default directories we search in (in addition to the compilers search path)
smart_include_dir="/usr/local/include /opt/include"
dnl # Our local versions
_smart_try_dir=
_smart_include_dir=
dnl # Add variants with the different prefixes and one with no prefix
for _prefix in $smart_prefix ""; do
for _dir in $smart_try_dir; do
_smart_try_dir="${_smart_try_dir} ${_dir}/${_prefix}"
done
for _dir in $smart_include_dir; do
_smart_include_dir="${_smart_include_dir} ${_dir}/${_prefix}"
done
done
dnl #
dnl # Try any user-specified directory first otherwise we may pick up
dnl # the wrong version.
dnl #
if test "x$_smart_try_dir" != "x"; then
for try in $_smart_try_dir; do
AC_MSG_CHECKING([for $1 in $try])
CPPFLAGS="-isystem $try $old_CPPFLAGS"
AC_TRY_COMPILE([$2
#include <$1>],
[int a = 1;],
[
smart_include="-isystem $try"
AC_MSG_RESULT(yes)
break
],
[
smart_include=
AC_MSG_RESULT(no)
])
done
CPPFLAGS="$old_CPPFLAGS"
fi
dnl #
dnl # Try using the default includes (with prefixes).
dnl #
if test "x$smart_include" = "x"; then
for _prefix in $smart_prefix; do
AC_MSG_CHECKING([for ${_prefix}/$1])
AC_TRY_COMPILE([$2
#include <$1>],
[int a = 1;],
[
smart_include="-isystem ${_prefix}/"
AC_MSG_RESULT(yes)
break
],
[
smart_include=
AC_MSG_RESULT(no)
])
done
fi
dnl #
dnl # Try using the default includes (without prefixes).
dnl #
if test "x$smart_include" = "x"; then
AC_MSG_CHECKING([for $1])
AC_TRY_COMPILE([$2
#include <$1>],
[int a = 1;],
[
smart_include=" "
AC_MSG_RESULT(yes)
break
],
[
smart_include=
AC_MSG_RESULT(no)
])
fi
dnl #
dnl # Try to guess possible locations.
dnl #
if test "x$smart_include" = "x"; then
for prefix in $smart_prefix; do
FR_LOCATE_DIR(_smart_include_dir,"${_prefix}/${1}")
done
FR_LOCATE_DIR(_smart_include_dir, $1)
for try in $_smart_include_dir; do
AC_MSG_CHECKING([for $1 in $try])
CPPFLAGS="-isystem $try $old_CPPFLAGS"
AC_TRY_COMPILE([$2
#include <$1>],
[int a = 1;],
[
smart_include="-isystem $try"
AC_MSG_RESULT(yes)
break
],
[
smart_include=
AC_MSG_RESULT(no)
])
done
CPPFLAGS="$old_CPPFLAGS"
fi
dnl #
dnl # Found it, set the appropriate variable.
dnl #
if test "x$smart_include" != "x"; then
eval "ac_cv_header_$ac_safe=yes"
CPPFLAGS="$smart_include $old_CPPFLAGS"
SMART_CPPFLAGS="$smart_include $SMART_CPPFLAGS"
fi
dnl #
dnl # Consume prefix, it's not likely to be used
dnl # between multiple calls.
dnl #
smart_prefix=
])
dnl #######################################################################
dnl #
dnl # Look for a header file in a number of places.
dnl #
dnl # Usage: FR_CHECK_STRUCT_HAS_MEMBER([#include <foo.h>], [struct foo], member)
dnl # If the member is defined, then the variable
dnl # ac_cv_type_struct_foo_has_member is set to 'yes'
dnl #
AC_DEFUN([FR_CHECK_STRUCT_HAS_MEMBER], [
AC_MSG_CHECKING([for $3 in $2])
dnl BASED on 'offsetof':
dnl #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
dnl
AC_TRY_COMPILE([
$1
#ifdef HAVE_STDDEF_H
#include <stddef.h>
#endif
#ifndef offsetof
#define offsetof(TYPE, MEMBER) ((int) &((TYPE *)0)->MEMBER)
#endif
],
[ int foo = offsetof($2, $3) ],
has_element=" ",
has_element=)
ac_safe_type=`echo "$2" | sed 'y% %_%'`
if test "x$has_element" != "x"; then
AC_MSG_RESULT(yes)
eval "ac_cv_type_${ac_safe_type}_has_$3=yes"
else
AC_MSG_RESULT(no)
eval "ac_cv_type_${ac_safe_type}_has_$3="
fi
])
dnl Autoconf 2.61 breaks the support for chained configure scripts
dnl in combination with config.cache
m4_pushdef([AC_OUTPUT],
[
unset ac_cv_env_LIBS_set
unset ac_cv_env_LIBS_value
m4_popdef([AC_OUTPUT])
AC_OUTPUT([$1],[$2],[$3])
])
dnl #
dnl # Figure out which storage class specifier for Thread Local Storage is supported by the compiler
dnl #
AC_DEFUN([FR_TLS],
[
dnl #
dnl # See if the compilation works with __thread, for thread-local storage
dnl #
AC_MSG_CHECKING(for __thread support in compiler)
AC_RUN_IFELSE(
[AC_LANG_SOURCE(
[[
static __thread int val;
int main(int argc, char **argv) {
val = 0;
return val;
}
]])
],[have_tls=yes],[have_tls=no],[have_tls=no])
AC_MSG_RESULT($have_tls)
if test "x$have_tls" = "xyes"; then
AC_DEFINE([TLS_STORAGE_CLASS],[__thread],[Define if the compiler supports a thread local storage class])
fi
dnl #
dnl # __declspec(thread) does exactly the same thing as __thread, but is supported by MSVS
dnl #
if test "x$have_tls" = "xno"; then
AC_MSG_CHECKING(for __declspec(thread) support in compiler)
AC_RUN_IFELSE(
[AC_LANG_SOURCE(
[[
static _Thread_local int val;
int main(int argc, char **argv) {
val = 0;
return val;
}
]])
],[have_tls=yes],[have_tls=no],[have_tls=no])
AC_MSG_RESULT($have_tls)
if test "x$have_tls" = "xyes"; then
AC_DEFINE([TLS_STORAGE_CLASS],[__declspec(thread)],[Define if the compiler supports a thread local storage class])
fi
fi
dnl #
dnl # _Thread_local does exactly the same thing as __thread, but it's standards compliant with C11.
dnl # we, however, state we are only compliant with C99, so the compiler will probably emit warnings
dnl # if we use it. So save it as a last resort.
dnl #
if test "x$have_tls" = "xno"; then
AC_MSG_CHECKING(for _Thread_local support in compiler)
AC_RUN_IFELSE(
[AC_LANG_SOURCE(
[[
static _Thread_local int val;
int main(int argc, char **argv) {
val = 0;
return val;
}
]])
],[have_tls=yes],[have_tls=no],[have_tls=no])
AC_MSG_RESULT($have_tls)
if test "x$have_tls" = "xyes"; then
AC_DEFINE([TLS_STORAGE_CLASS],[_Thread_local],[Define if the compiler supports a thread local storage class])
fi
fi
])
AC_DEFUN([VL_LIB_READLINE], [
AC_CACHE_CHECK([for a readline compatible library],
vl_cv_lib_readline, [
ORIG_LIBS="$LIBS"
for readline_lib in readline edit editline; do
for termcap_lib in "" termcap curses ncurses; do
if test -z "$termcap_lib"; then
TRY_LIB="-l$readline_lib"
else
TRY_LIB="-l$readline_lib -l$termcap_lib"
fi
LIBS="$ORIG_LIBS $TRY_LIB"
AC_TRY_LINK_FUNC(readline, vl_cv_lib_readline="$TRY_LIB")
if test -n "$vl_cv_lib_readline"; then
break
fi
done
if test -n "$vl_cv_lib_readline"; then
break
fi
done
if test -z "$vl_cv_lib_readline"; then
vl_cv_lib_readline="no"
LIBS="$ORIG_LIBS"
fi
])
if test "$vl_cv_lib_readline" != "no"; then
LIBREADLINE="$vl_cv_lib_readline"
AC_DEFINE(HAVE_LIBREADLINE, 1,
[Define if you have a readline compatible library])
AC_CHECK_HEADERS(readline.h readline/readline.h)
AC_CACHE_CHECK([whether readline supports history],
[vl_cv_lib_readline_history], [
vl_cv_lib_readline_history="no"
AC_TRY_LINK_FUNC([add_history], [vl_cv_lib_readline_history="yes"])
])
if test "$vl_cv_lib_readline_history" = "yes"; then
AC_DEFINE(HAVE_READLINE_HISTORY, 1,
[Define if your readline library has \`add_history'])
AC_CHECK_HEADERS(history.h readline/history.h)
fi
fi
AC_SUBST(LIBREADLINE)
])dnl
dnl #
dnl # Check if we have the choose expr builtin
dnl #
AC_DEFUN([FR_HAVE_BUILTIN_CHOOSE_EXPR],
[
AC_CACHE_CHECK([for __builtin_choose_expr support in compiler], [ax_cv_cc_builtin_choose_expr],[
AC_RUN_IFELSE(
[
AC_LANG_SOURCE(
[
int main(int argc, char **argv) {
if ((argc < 0) || !argv) return 1; /* -Werror=unused-parameter */
return __builtin_choose_expr(0, 1, 0);
}
])
],
[ax_cv_cc_builtin_choose_expr=yes],
[ax_cv_cc_builtin_choose_expr=no]
)
])
if test "x$ax_cv_cc_builtin_choose_expr" = "xyes"; then
AC_DEFINE([HAVE_BUILTIN_CHOOSE_EXPR],1,[Define if the compiler supports __builtin_choose_expr])
fi
])
dnl #
dnl # Check if we have the types compatible p builtin
dnl #
AC_DEFUN([FR_HAVE_BUILTIN_TYPES_COMPATIBLE_P],
[
AC_CACHE_CHECK([for __builtin_types_compatible_p support in compiler], [ax_cv_cc_builtin_types_compatible_p],[
AC_RUN_IFELSE(
[
AC_LANG_SOURCE(
[
int main(int argc, char **argv) {
if ((argc < 0) || !argv) return 1; /* -Werror=unused-parameter */
return !(__builtin_types_compatible_p(char *, char *));
}
])
],
[ax_cv_cc_builtin_types_compatible_p=yes],
[ax_cv_cc_builtin_types_compatible_p=no]
)
])
if test "x$ax_cv_cc_builtin_types_compatible_p" = "xyes"; then
AC_DEFINE([HAVE_BUILTIN_TYPES_COMPATIBLE_P],1,[Define if the compiler supports __builtin_types_compatible_p])
fi
])
dnl #
dnl # Check if we have the bwsap64 builtin
dnl #
AC_DEFUN([FR_HAVE_BUILTIN_BSWAP64],
[
AC_CACHE_CHECK([for __builtin_bswap64 support in compiler], [ax_cv_cc_builtin_bswap64],[
AC_RUN_IFELSE(
[
AC_LANG_SOURCE([
int main(int argc, char **argv) {
if ((argc < 0) || !argv) return 1; /* -Werror=unused-parameter */
return (__builtin_bswap64(0));
}
])
],
[ax_cv_cc_builtin_bswap64=yes],
[ax_cv_cc_builtin_bswap64=no]
)
])
if test "x$ax_cv_cc_builtin_bswap64" = "xyes"; then
AC_DEFINE([HAVE_BUILTIN_BSWAP_64],1,[Define if the compiler supports __builtin_bswap64])
fi
])
dnl #
dnl # Check if we have __attribute__((__bounded__)) (usually only OpenBSD with GCC)
dnl #
AC_DEFUN([FR_HAVE_BOUNDED_ATTRIBUTE],[
AC_CACHE_CHECK([for __attribute__((__bounded__)) support in compiler], [ax_cv_cc_bounded_attribute],[
CFLAGS_SAVED=$CFLAGS
CFLAGS="$CFLAGS -Werror"
AC_RUN_IFELSE(
[
AC_LANG_SOURCE([
void test(char *buff) __attribute__ ((__bounded__ (__string__, 1, 1)));
int main(int argc, char **argv) {
if ((argc < 0) || !argv) return 1; /* -Werror=unused-parameter */
return 0;
}
])
],
[ax_cv_cc_bounded_attribute=yes],
[ax_cv_cc_bounded_attribute=no]
)
CFLAGS="$CFLAGS_SAVED"
])
if test "x$ax_cv_cc_bounded_attribute" = "xyes"; then
AC_DEFINE(HAVE_ATTRIBUTE_BOUNDED, 1, [Define if your compiler supports the __bounded__ attribute (usually OpenBSD gcc).])
fi
])
AC_INCLUDE(aclocal.m4)