build: Add a check that Valgrind actually supports a host platform #1027

1. 
   hebasto commented at 1:21 pm on December 3, 2021: member

   This PR adds a check that Valgrind actually supports a host platform.

   On master (49f608de474a89e5c742830c8ff5ac8978b5796a):

   0$ ./autogen.sh &> /dev/null && ./configure -q --host=riscv64-linux-gnu 2>&1 | grep valgrind
   1  valgrind                = yes
   

   With this PR:

   0$ ./autogen.sh &> /dev/null && ./configure -q --host=riscv64-linux-gnu 2>&1 | grep valgrind
   1  valgrind                = no
   

   Closes #1023.

2. 
   real-or-random commented at 2:00 pm on December 3, 2021: contributor

   Nice, I thought that will be much more diffcult.

   Concept ACK

   nit: s/valgring/valgrind

3. hebasto renamed this:
   build: Add a check that Valgring actually supports a host platform
   build: Add a check that Valgrind actually supports a host platform
   on Dec 3, 2021
4. build: Add a check that Valgrind actually supports a host platform 7c7ce872a5
5. hebasto force-pushed on Dec 3, 2021
6. 
   hebasto commented at 3:34 pm on December 3, 2021: member

   @real-or-random

   nit: s/valgring/valgrind

   Thanks! Fixed.

7. 
   sipa commented at 10:36 pm on December 3, 2021: contributor

   utACK 7c7ce872a53f386f7c6a3a8ea04442840902193b
8. 
   real-or-random commented at 10:34 am on December 5, 2021: contributor

   utACK 7c7ce872a53f386f7c6a3a8ea04442840902193b

   valgrind.h (included by memcheck.h) defines NVALGRIND if platform detection fails: https://sourceware.org/git/?p=valgrind.git;a=blob;f=include/valgrind.h.in;h=aa0b431256e14da602064c1052c2c5fb5f7f88d4;hb=HEAD#l172

   edit: I checked that valgrind support still is detected on my machine.

9. real-or-random merged this on Dec 5, 2021
10. real-or-random closed this on Dec 5, 2021

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11. hebasto deleted the branch on Dec 5, 2021
12. sipa referenced this in commit 86dbc4d075 on Dec 15, 2021
13. sipa cross-referenced this on Dec 15, 2021 from issue Update libsecp256k1 subtree to current master by sipa
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21. hebasto cross-referenced this on Apr 11, 2023 from issue build: Make `SECP_VALGRIND_CHECK` preserve `CPPFLAGS` by hebasto
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Contributors
hebasto real-or-random sipa