You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
74 lines
1.6 KiB
74 lines
1.6 KiB
AC_DEFUN([KDE_C_LONG_DOUBLE],
|
|
[
|
|
AC_CACHE_CHECK(for long double, ac_cv_c_long_double,
|
|
[
|
|
ac_save_LIBS="$LIBS"
|
|
LIBS="-lm $LIBS"
|
|
AC_TRY_RUN(
|
|
[
|
|
#define _ISOC99_SOURCE 1
|
|
#define _GNU_SOURCE 1
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <math.h>
|
|
|
|
int main() {
|
|
/* The Stardent Vistra knows sizeof(long double), but does not support it. */
|
|
long double foo = 1.0;
|
|
char buffer[10];
|
|
/* On Ultrix 4.3 cc, long double is 4 and double is 8. */
|
|
int result = (sizeof(long double) <= sizeof(double));
|
|
/* the following is needed for a broken printf in glibc2 */
|
|
if (!result) {
|
|
foo = foo * 3;
|
|
sprintf(buffer,"%0.0Lf",foo);
|
|
result = strcmp(buffer, "3");
|
|
/* and now something mean ;-) */
|
|
foo = powl(fabsl(foo), 1);
|
|
}
|
|
exit(result); }
|
|
],
|
|
ac_cv_c_long_double=yes, ac_cv_c_long_double=no,
|
|
ac_cv_c_long_double=no
|
|
)
|
|
LIBS="$ac_save_LIBS"
|
|
])
|
|
if test $ac_cv_c_long_double = yes; then
|
|
AC_DEFINE(HAVE_LONG_DOUBLE, 1, [Define if you have support for long double in printf])
|
|
fi
|
|
])
|
|
KDE_C_LONG_DOUBLE
|
|
|
|
have_l_funcs=yes
|
|
AC_CHECK_LIB(m, sqrtl,,have_l_funcs=no)
|
|
|
|
if test "xyes" = "x$have_l_funcs" ; then
|
|
AC_DEFINE(HAVE_L_FUNCS,1,[Define if you have *l math functions (absl, ...)])
|
|
fi
|
|
|
|
LIBGMP=
|
|
KDE_CHECK_HEADER([gmp.h], [
|
|
AC_LANG_SAVE
|
|
AC_LANG_CPLUSPLUS
|
|
|
|
kde_save_LIBS=$LIBS
|
|
LIBS="$all_libraries -lgmp -ltqt"
|
|
AC_TRY_LINK(dnl
|
|
[
|
|
#include <gmp.h>
|
|
],
|
|
[
|
|
mpz_t _mpz;
|
|
mpz_init_set_si(_mpz, 0);
|
|
],
|
|
[LIBGMP="-lgmp"],
|
|
[
|
|
DO_NOT_COMPILE="$DO_NOT_COMPILE kcalc"
|
|
])
|
|
LIBS=$kde_save_LIBS
|
|
AC_LANG_RESTORE
|
|
|
|
])
|
|
AC_SUBST(LIBGMP)
|