still getting Malform expression using giac in 9.6

$ cd $(sage -c "print(SAGE_ROOT)")
$ git remote add trac git://trac.sagemath.org/sage.git -t develop
$ git checkout -b 33717
$ git fetch trac u/tornaria/33717
$ git merge FETCH_HEAD
$ ./sage -b

Next time you start Sage, it should have the fix.

Next time you want to upgrade Sage, start by checking out the develop branch:

$ git checkout develop
$ git pull origin develop
$ ./bootstrap -q && ./configure -q && make -s V=0

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Thanks. I am trying this now. I never used git before (one day I need to learn it). Do I need to do make distclean before doing all the above? I also did git remote add trac git://trac.sagemath.org/sage.git -t develop now and got error error: remote trac already exists. should I just ignore this and continue?

Nasser ( 2022-05-18 09:31:17 +0100 )edit

I think I will just wait for sage 9.7 in this case. I tried the above but it is not working for me. I keep getting same error. May be I did something wrong. But it is no problem now that I know what the cause. I will wait for 9.7 and try again.

Nasser ( 2022-05-18 10:01:51 +0100 )edit

You will need to do make distclean for these changes to have an effect.

John Palmieri ( 2022-05-19 02:05:20 +0100 )edit

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answered 2022-05-19 02:07:27 +0100

John Palmieri

8876 ●19 ●73 ●192 http://www.math.washin...

updated 2022-05-20 01:28:04 +0100

You could try editing the file build/pkgs/giac/spkg-configure.m4: change the line

   m4_pushdef([GIAC_MAX_VERSION], [1.7.999])

to something with a larger number, maybe

   m4_pushdef([GIAC_MAX_VERSION], [1.9.999])

Then try make distclean and make configure and ./configure and see what config.log says about whether it's going to build giac or use the system package.

(The files spkg-configure.m4 for the various packages are used to construct the main configure script, which is what make configure does.)

Edit: my answer is essentially equivalent to the other one. The cited trac ticket makes exactly my proposed change to spkg-configure.m4, after which one should do

make distclean to remove all traces of any previous build
make configure to rebuild the configure script — this automatically runs ./bootstrap as recommended in the other answer.
./configure with any relevant arguments
at this point, look at config.log to see what it says about building giac. There is a section with the heading "Build status for each package", and the hope is that for giac it will say, "using system package; SPKG will not be installed"
then make to actually build Sage

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I actually did what you show before,. It was one of the things I did try, but I did not mention it in my post. (btw, you have typo, it is .m4 file not .g4). But it did not work., I found out that the configure file itself, has hardcoded values for giac allowed version number,. Yes, hardcoded inside the configure file. If you look at it, you will see. But I am now trying this yet again. All from a brand new sagemath 9.6 folder (I deleted everything and extracted the tar file again just to make sure). I am now building it. will let you know the result. But I am sure it will not work. It will still use old giac. But will let you know when done. The thing I still do not understand, is where sagemath finding the old giac code it is calling ...(more)

Nasser ( 2022-05-19 04:02:15 +0100 )edit

Ok, build is complete. It did not work. Build said it is using system giac, which is correct. I have giac 1.9 on system. But when it is completed, and called integrate command, it called giac 1.7. How, I do not know. I assume sagemath 9.6 comes with giac 1.7 library hiding somewhere and it uses that, even though it says it will use system giac. I know I only have giac 1.9 on my Linux box.

Nasser ( 2022-05-19 05:11:28 +0100 )edit

Try the new directions, including make configure to rebuild the main configure script.

John Palmieri ( 2022-05-19 07:12:22 +0100 )edit

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