add cmakelists for zahl

add leak

compiles

wip wrapper

add zahl wrapper

Merge pull request #1985 from isuruf/flint23

Fix flint headers and replace use of deprecated funcs in flint2/3

Update install_travis.sh

use boost-cpp <1.82

Fix conda deps

Fix flint headers and replace use of deprecated funcs in flint2/3

Merge pull request #1968 from symengine/fixupVisuals

MAINT: Pin doxygen

Merge pull request #1977 from thilinarmtb/fix-warnings

Fix deprecated function declarations

Merge pull request #1979 from certik/release

Change the version in CMakeLists.txt

Change the version in CMakeLists.txt

Fix deprecated function declarations

Exposing the `has_symbol` function through cwrapper.h (#1978)

Merge pull request #1971 from autoantwort/check-boostmp

Check that INTEGER_CLASS=boostmp is not used with FLINT, ARB or MPFR

Check that INTEGER_CLASS=boostmp is not used with FLINT, ARB or MPFR

MAINT: Pin doxygen

For proper rendering of the documentation.

Merge pull request #1963 from lkeegan/llvm_use_new_passmanager

use new llvm pass manager instead of legacy pass manager