[GRASS-dev] GRASS 7.4.2 won't configure on Mac

[Vaclav Petras]

Since it's complaining about /lib/cpp,

./configure: line 5164: /lib/cpp: No such file or directory

I would say the problem is not zlib, but missing C++ compiler (at least on
my machine, /lib/cpp eventually points to /usr/bin/cpp-5), although I don't
know why ./configure would catch that problem earlier since a successful
report contains:

  C compiler:                 clang -O2 -Wall -pedantic -Wextra
  C++ compiler:               clang++ -std=c++14 -fexceptions

The checking phase reports only about C compiler, so the difference is
perhaps there.

checking for gcc... clang
checking whether the C compiler (clang -O2 -Wall -pedantic -Wextra -s)
works... yes
checking whether the C compiler (clang -O2 -Wall -pedantic -Wextra -s) is a
cross-compiler... no
checking whether we are using GNU C... yes
checking whether clang accepts -g... yes



On Fri, Nov 9, 2018 at 10:58 PM Michael Barton <Michael.Barton at asu.edu>
wrote:
>
> I could see that it could not find zlib in the configure output. I don't
know why, since I DO have zlib in the appropriate place
>
> MIchael
>
> On Nov 9, 2018, at 4:21 PM, Markus Neteler <neteler at osgeo.org> wrote:
>
> Just scroll to the end of the file.
>
>
> ; return 0; }
> configure:5066: checking for socket in -lsocket
> configure:5083:
> /Applications/GRASS-7.4.2.app/Contents/Resources/bin/clang -o conftest
> -g -O2    -I/Applications/GRASS-7.4.2.app/Contents/Resources/include
> -L/Applications/GRASS-7.4.2.app/Contents/Resources/lib conftest.c
> -lsocket   1>&5
> ld: library not found for -lsocket
> clang-4.0: error: linker command failed with exit code 1 (use -v to
> see invocation)
> configure: failed program was:
> #line 5072 "configure"
> #include "confdefs.h"
> /* Override any gcc2 internal prototype to avoid an error.  */
> /* We use char because int might match the return type of a gcc2
>    builtin and then its argument prototype would still apply.  */
> char socket();
>
> int main() {
> socket()
> ; return 0; }
> configure:5131: checking for location of zlib includes
> configure:5157: checking for zlib.h
> configure:5165: /lib/cpp
> -I/Applications/GRASS-7.4.2.app/Contents/Resources/include conftest.c
>
> /dev/null 2>conftest.out
>
> ./configure: line 5164: /lib/cpp: No such file or directory
> configure: failed program was:
> #line 5160 "configure"
> #include "confdefs.h"
> #include <zlib.h>
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