[Proj] building, testing from git repository -- 'ctest' failures

[Greg Minshall]

hi.

sorry if i missed a step in the README files.

i cloned the current git repository, checked out a recent release (i
tried for both 5.1.0 and 5.0.1), followed the instructions in README.md
----
    cd proj
    mkdir build
    cd build
    cmake ..
    cmake --build .
----

i then cloned proj-datumgrid, and pointed the environmental variable
PROJ_LIB in its direction
----
bash minshall-apollo: {1195} ls $PROJ_LIB
BETA2007.gsb    README.DATUMGRID  cmake/        lla/            nzgd2kgrid0005.gsb  stpaul
CMakeLists.txt  TN                conus         north-america/  oceania/
FL              WI                egm96_15.gtx  ntf_r93.gsb     prvi
HOWTORELEASE    WO                europe/       ntv1_can.dat    stgeorge
MD              alaska            hawaii        null            stlrnc
----

then, back in proj.4/build, ran ctest, and came up with lots of
failures.  (i tried various things in proj-datumgrid, such as attempts
at cmake, checking out 1.6, etc., to no avail.)

any thoughts on what i might be doing wrong?  i'm on lubuntu, relatively
recent.  also, for all this, i did *not* run ./autogen.sh, ./configure,
etc.  are they still part of the build process?

one thought: do i need to first do (whatever the cmake equivalent of)
"make install"?  or, do the tests run out of the build directories?

cheers, Greg

p.s.  ctest run, failures:
----
bash minshall-apollo: {1210} ctest
Test project /home/minshall/src/import/osgeo/proj/proj.4/build
      Start  1: test27
 1/29 Test  #1: test27 ...........................   Passed    0.31 sec
      Start  2: test83
 2/29 Test  #2: test83 ...........................   Passed    0.26 sec
      Start  3: testvarious
 3/29 Test  #3: testvarious ......................***Failed    0.08 sec
      Start  4: geodesic-test
 4/29 Test  #4: geodesic-test ....................   Passed    0.00 sec
      Start  5: Builtins
 5/29 Test  #5: Builtins .........................   Passed    0.01 sec
      Start  6: Builtins2
 6/29 Test  #6: Builtins2 ........................***Failed    0.02 sec
      Start  7: Axisswap
 7/29 Test  #7: Axisswap .........................***Failed    0.00 sec
      Start  8: Deformation
 8/29 Test  #8: Deformation ......................***Failed    0.00 sec
      Start  9: Ellipsoid
 9/29 Test  #9: Ellipsoid ........................***Failed    0.00 sec
      Start 10: GDA
10/29 Test #10: GDA ..............................   Passed    0.00 sec
      Start 11: 4D-API-cs2cs-style
11/29 Test #11: 4D-API-cs2cs-style ...............***Failed    0.00 sec
      Start 12: DHDN_ETRS89
12/29 Test #12: DHDN_ETRS89 ......................***Failed    0.00 sec
      Start 13: GIGS-5101.1-jhs
13/29 Test #13: GIGS-5101.1-jhs ..................***Failed    0.00 sec
      Start 14: GIGS-5101.2-jhs
14/29 Test #14: GIGS-5101.2-jhs ..................***Failed    0.00 sec
      Start 15: GIGS-5101.3-jhs
15/29 Test #15: GIGS-5101.3-jhs ..................***Failed    0.00 sec
      Start 16: GIGS-5101.4-jhs-etmerc
16/29 Test #16: GIGS-5101.4-jhs-etmerc ...........***Failed    0.00 sec
      Start 17: GIGS-5102.1
17/29 Test #17: GIGS-5102.1 ......................***Failed    0.00 sec
      Start 18: GIGS-5103.1
18/29 Test #18: GIGS-5103.1 ......................***Failed    0.00 sec
      Start 19: GIGS-5103.2
19/29 Test #19: GIGS-5103.2 ......................***Failed    0.00 sec
      Start 20: GIGS-5103.3
20/29 Test #20: GIGS-5103.3 ......................***Failed    0.00 sec
      Start 21: GIGS-5105.2
21/29 Test #21: GIGS-5105.2 ......................***Failed    0.00 sec
      Start 22: GIGS-5106
22/29 Test #22: GIGS-5106 ........................***Failed    0.00 sec
      Start 23: GIGS-5107
23/29 Test #23: GIGS-5107 ........................***Failed    0.00 sec
      Start 24: GIGS-5109
24/29 Test #24: GIGS-5109 ........................***Failed    0.00 sec
      Start 25: GIGS-5111.1
25/29 Test #25: GIGS-5111.1 ......................***Failed    0.00 sec
      Start 26: GIGS-5112
26/29 Test #26: GIGS-5112 ........................***Failed    0.00 sec
      Start 27: GIGS-5113
27/29 Test #27: GIGS-5113 ........................***Failed    0.00 sec
      Start 28: GIGS-5201
28/29 Test #28: GIGS-5201 ........................***Failed    0.00 sec
      Start 29: GIGS-5208
29/29 Test #29: GIGS-5208 ........................***Failed    0.00 sec

17% tests passed, 24 tests failed out of 29

Total Test time (real) =   0.74 sec

The following tests FAILED:
          3 - testvarious (Failed)
          6 - Builtins2 (Failed)
          7 - Axisswap (Failed)
          8 - Deformation (Failed)
          9 - Ellipsoid (Failed)
         11 - 4D-API-cs2cs-style (Failed)
         12 - DHDN_ETRS89 (Failed)
         13 - GIGS-5101.1-jhs (Failed)
         14 - GIGS-5101.2-jhs (Failed)
         15 - GIGS-5101.3-jhs (Failed)
         16 - GIGS-5101.4-jhs-etmerc (Failed)
         17 - GIGS-5102.1 (Failed)
         18 - GIGS-5103.1 (Failed)
         19 - GIGS-5103.2 (Failed)
         20 - GIGS-5103.3 (Failed)
         21 - GIGS-5105.2 (Failed)
         22 - GIGS-5106 (Failed)
         23 - GIGS-5107 (Failed)
         24 - GIGS-5109 (Failed)
         25 - GIGS-5111.1 (Failed)
         26 - GIGS-5112 (Failed)
         27 - GIGS-5113 (Failed)
         28 - GIGS-5201 (Failed)
         29 - GIGS-5208 (Failed)
Errors while running CTest