1 files changed, 78 insertions, 0 deletions
diff --git a/kcalc/configure.in.in b/kcalc/configure.in.in
new file mode 100644
index 0000000..3501f1e
--- /dev/null
+++ b/kcalc/configure.in.in
@@ -0,0 +1,78 @@
+AC_CHECK_HEADERS(ieeefp.h)
+
+AC_CHECK_FUNCS(fabsl)
+
+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 $ac_cv_c_long_double = yes; then
+    AC_DEFINE(HAVE_LONG_DOUBLE, 1, [Define if you have support for long double in printf])
+  fi
+])
+KDE_C_LONG_DOUBLE
+
+have_l_funcs=yes
+AC_CHECK_LIB(m, asinl,,have_l_funcs=no)
+AC_CHECK_LIB(m, sqrtl,,have_l_funcs=no)
+
+if test "xyes" = "x$have_l_funcs" ; then
+  AC_DEFINE(HAVE_L_FUNCS,1,[Define if you have *l math functions (absl, ...)])
+fi
+
+AC_LANG_C
+AC_CHECK_LIB(m, isinf, [
+  AC_DEFINE_UNQUOTED(HAVE_FUNC_ISINF, 1, [Define if you have isinf])
+])
+AC_CHECK_LIB(m, round, [
+  AC_DEFINE_UNQUOTED(HAVE_FUNC_ROUND, 1, [Define if you have round])
+])
+AC_CHECK_LIB(m, roundl, [
+  AC_DEFINE_UNQUOTED(HAVE_FUNC_ROUNDL, 1, [Define if you have round])
+])
+
+kcalc_gmp_found=yes
+LIBGMP=
+KDE_CHECK_HEADER([gmp.h], [
+  KDE_CHECK_LIB(gmp, main, [
+    LIBGMP="-lgmp"
+    AC_DEFINE(HAVE_GMP, 1, [Define if you have libgmp])
+  ])
+  ],[
+  DO_NOT_COMPILE="kcalc $DO_NOT_COMPILE"
+  kcalc_gmp_found=no
+  ]
+)
+AC_SUBST(LIBGMP)