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comparison m4/acinclude.m4 @ 15294:d1751eee9a42

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acinclude.m4: Use AC_LANG_PUSH macro with AC_CACHE_CHECK for greater efficiency. * acinclude.m4: Use AC_LANG_PUSH macro with AC_CACHE_CHECK for greater efficiency.
author Rik <rik@octave.org>
date Tue, 04 Sep 2012 17:36:11 -0700
parents 2981cdbb955f
children 43e484fa7e42
comparison
equal deleted inserted replaced
15293:2981cdbb955f 15294:d1751eee9a42
355 dnl with the buggy ARPACK library but the C++ program does. Maybe it 355 dnl with the buggy ARPACK library but the C++ program does. Maybe it
356 dnl is the memory allocation that exposes the bug and using statically 356 dnl is the memory allocation that exposes the bug and using statically
357 dnl allocated arrays in Fortran does not? 357 dnl allocated arrays in Fortran does not?
358 dnl 358 dnl
359 AC_DEFUN([OCTAVE_CHECK_LIB_ARPACK_OK], [ 359 AC_DEFUN([OCTAVE_CHECK_LIB_ARPACK_OK], [
360 AC_LANG_PUSH(C++)
361 AC_CACHE_CHECK([whether the arpack library works], 360 AC_CACHE_CHECK([whether the arpack library works],
362 [octave_cv_lib_arpack_ok], 361 [octave_cv_lib_arpack_ok],
363 [AC_RUN_IFELSE([AC_LANG_PROGRAM([[ 362 [AC_LANG_PUSH(C++)
363 AC_RUN_IFELSE([AC_LANG_PROGRAM([[
364 // External functions from ARPACK library 364 // External functions from ARPACK library
365 extern "C" int 365 extern "C" int
366 F77_FUNC (dnaupd, DNAUPD) (int&, const char *, const int&, const char *, 366 F77_FUNC (dnaupd, DNAUPD) (int&, const char *, const int&, const char *,
367 int&, const double&, double*, const int&, 367 int&, const double&, double*, const int&,
368 double*, const int&, int*, int*, double*, 368 double*, const int&, int*, int*, double*,
491 doit (); 491 doit ();
492 ]])], 492 ]])],
493 octave_cv_lib_arpack_ok=yes, 493 octave_cv_lib_arpack_ok=yes,
494 octave_cv_lib_arpack_ok=no, 494 octave_cv_lib_arpack_ok=no,
495 octave_cv_lib_arpack_ok=yes) 495 octave_cv_lib_arpack_ok=yes)
496 ]) 496 AC_LANG_POP(C++)
497 AC_LANG_POP(C++) 497 ])
498 if test "$octave_cv_lib_arpack_ok" = "yes"; then 498 if test "$octave_cv_lib_arpack_ok" = "yes"; then
499 $1 499 $1
500 else 500 else
501 $2 501 $2
502 fi 502 fi