Re: trouble compiling

[Daniel J Sebald]

On 05/18/2012 01:10 PM, Jordi Gutiérrez Hermoso wrote:
> On 18 May 2012 13:50, Daniel J Sebald<address@hidden>  wrote:
>
> > 1) Mild warnings in the configure file (i.e., warnings that don't appear at
> > the very end, but instead are only amongst a whole lot of output) that
> > really end up being needed in the default compilation.  Here's an example:
> >
> > configure:59086: WARNING: I didn't find flex, but it's only a problem if you
> > need to reconstruct lex.cc
>
> I recently tried to alleviate this problem:
>
>      http://hg.savannah.gnu.org/hgweb/octave/rev/28e53daab1f8
>
> I thought I did make those warnings appear at the end all together. Am I wrong?
>
> - Jordi G. H.

I'm not seeing anything stand out near the end of the file.  I removed 
flex from my system and did a fresh clean/reconfigure.  The log file 
does not the missing flex:

configure:58916: checking for lex
configure:58946: result: no
configure:59086: WARNING: I didn't find flex, but it's only a problem if 
you need to reconstruct lex.cc

and the following is what is at the end of the process:

Octave is now configured for x86_64-unknown-linux-gnu

  Source directory:            .
  Installation prefix:         /usr/local
  C compiler:                  gcc   -Wall -W -Wshadow -Wformat 
-Wpointer-arith -Wmissing-prototypes -Wstrict-prototypes -Wwrite-strings 
-Wcast-align -Wcast-qual -g -O2 -pthread
  C++ compiler:                g++    -Wall -W -Wshadow 
-Wold-style-cast -Wformat -Wpointer-arith -Wwrite-strings -Wcast-align 
-Wcast-qual -g -O2
  Fortran compiler:            gfortran -O
  Fortran libraries: 
-L/usr/lib/gcc/x86_64-redhat-linux/4.5.1 
-L/usr/lib/gcc/x86_64-redhat-linux/4.5.1/../../../../lib64 
-L/lib/../lib64 -L/usr/lib/../lib64 
-L/usr/lib/gcc/x86_64-redhat-linux/4.5.1/../../.. -lgfortran -lm
  Lex libraries:
  LIBS:                        -lm

  AMD CPPFLAGS:
[snip approximately sixty libraries and flags]
  Z libraries:                 -lz

  Default pager:               less
  gnuplot:                     gnuplot

  Do internal array bounds checking:  false
  Use octave_allocator:               false
  Build static libraries:             false
  Build shared libraries:             true
  Dynamic Linking:                    true (dlopen)
  Include support for GNU readline:   true
  64-bit array dims and indexing:     false

configure: WARNING: FFTW3 library not found.  The slower FFTPACK library 
will be used instead.
configure: WARNING: FFTW3F library not found.  The slower FFTPACK 
library will be used instead.
configure: WARNING: OpenGL libs (GL and GLU) not found. Native graphics 
will be disabled.
configure: WARNING:
configure: WARNING: I didn't find the necessary libraries to compile native
configure: WARNING: graphics.  It isn't necessary to have native graphics,
configure: WARNING: but you will need to have gnuplot installed or you won't
configure: WARNING: be able to use any of Octave's plotting commands
configure: WARNING:
configure:
configure: NOTE: libraries may be skipped if a library is not found OR
configure: NOTE: if the library on your system is missing required features.