use libgit, libssh and libcurl shipped by Julia

Also removes some likely to be outdated dependencies. This is based on
 conda-forge#111 and likely to still fail, but I could not find the logs for that
PR anymore. Also, would it be possible to run the entire testsuite
(should take ~1h with multiple threads), since that is also likely to
catch any issues with third-party dependencies?

recipe/build.sh

@@ -32,12 +32,11 @@ make -j 4 prefix=${PREFIX} MARCH=core2 sysconfigdir=${PREFIX}/etc NO_GIT=1 \
  LIBBLAS=-lblas LIBBLASNAME=libblas LIBLAPACK=-llapack LIBLAPACKNAME=liblapack \
  USE_SYSTEM_ARPACK=1 \
  USE_SYSTEM_BLAS=1 \
- USE_SYSTEM_CURL=1 \
- USE_SYSTEM_FFTW=1 \
+ USE_SYSTEM_CURL=0 \
  USE_SYSTEM_GMP=1 \
  USE_SYSTEM_LAPACK=1 \
- USE_SYSTEM_LIBGIT2=1 \
- USE_SYSTEM_LIBSSH2=1 \
+ USE_SYSTEM_LIBGIT2=0 \
+ USE_SYSTEM_LIBSSH2=0 \
  USE_SYSTEM_LLVM=0 \
  USE_SYSTEM_MPFR=1 \
  USE_SYSTEM_OPENLIBM=1 \

recipe/meta.yaml

@@ -18,9 +18,8 @@ build:
 
 requirements:
   build:
-    - cmake-binary
     - perl
-    - python 2.7.*
+    - python 3.*
     - {{ compiler('fortran') }}
     - {{ compiler('c') }}
     - {{ compiler('cxx') }}
@@ -32,7 +31,6 @@ requirements:
     - zlib
     - openlibm 0.5.4
     - openspecfun 0.5.3
-    - fftw
     - gmp
     - mpfr
     - curl
@@ -46,14 +44,12 @@ requirements:
     - zlib
     - {{ pin_compatible("libgit2", max_pin="x.x") }}
     - libosxunwind  # [osx]
-    - fftw
     - gmp
     - mpfr
     - openlibm 0.5.4
     - openspecfun 0.5.3
     - arpack
     - suitesparse
-    - curl
     - pcre2 10.36
 
 test: