gitian: Don’t require sudo for Linux. #8315

1. 
   theuni commented at 0:16 am on July 8, 2016: member

   Fixes #8212. See commit message for details.

   This simply wraps gcc/g++ rather than requiring a new descriptor.

2. gitian: use a wrapped gcc/g++ to avoid the need for a system change

   C_INCLUDE_PATH and CPLUS_INCLUDE_PATH work globally as though -isystem was used
   for each invocation.
   
   Since that changes the build results, force a rebuild of x86 depends by adding
   the value to $HOST_ID_SALT.

   099d4b0b65
3. laanwj added the label Build system on Jul 8, 2016
4. 
   laanwj commented at 6:21 am on July 8, 2016: member

   Nice workaround. utACK, going to test
5. laanwj added this to the milestone 0.13.0 on Jul 8, 2016
6. 
   jonasschnelli commented at 9:44 am on July 8, 2016: contributor

   Seems to work: https://bitcoin.jonasschnelli.ch/pulls/8315/
7. 
   laanwj commented at 9:45 am on July 8, 2016: member

   I have successfully built a full set of linux executables with this patch and #8314 applied. This solves #8212. ACK https://github.com/bitcoin/bitcoin/pull/8315/commits/099d4b0b65b7dceb14dc4ec5231a60996dff4c69
8. laanwj merged this on Jul 8, 2016
9. laanwj closed this on Jul 8, 2016

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Contributors
theuni laanwj jonasschnelli

Labels
Build system

Milestone
0.13.0