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diff configure.ac @ 16332:5293cee91891

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conditionally define HAVE_FFTW and HAVE_ZLIB in config.h * configure.ac: Conditionally define HAVE_FFTW and HAVE_ZLIB in config.h instead of defining them in oct-conf-post.h.
author John W. Eaton <jwe@octave.org>
date Sun, 17 Mar 2013 05:12:56 -0400
parents 306e0ac231d0
children effe80808118
line wrap: on
line diff
--- a/configure.ac
+++ b/configure.ac
@@ -694,6 +694,11 @@
   [ZLIB library not found.  Octave will not be able to save or load compressed data files or HDF5 files.],
   [zlib.h], [gzclearerr])
 
+### Also define HAVE_ZLIB if libz is found.
+if test $octave_cv_lib_z = yes; then
+  AC_DEFINE(HAVE_ZLIB, 1, [Define to 1 if ZLIB is available.])
+fi
+
 ### Check for the LLVM library
 
 build_jit=no
@@ -823,9 +828,16 @@
   OCTAVE_CHECK_FFTW_THREADS(fftw3f, fftwf_plan_with_nthreads)
 fi
 
+## Octave is currently unable to use FFTW unless both float
+## and double versions are available.
+
 AM_CONDITIONAL([AMCOND_HAVE_FFTW],
   [test -n "$FFTW3_LIBS" && test -n "$FFTW3F_LIBS"])
 
+if test -n "$FFTW3_LIBS" && test -n "$FFTW3F_LIBS"; then
+  AC_DEFINE(HAVE_FFTW, 1, [Define if you have both FFTW3 and FFTW3F libraries.])
+fi
+
 ## Subdirectory of liboctave/cruft to build if FFTW is not found.
 FFT_DIR="fftpack"
 AC_SUBST(FFT_DIR)